SEDIMENTLOGY OF QUATERNARY DEPOSITS OF NARMADA RIFT VALLEY IN INCREASING ANTIQUITY WITH SPECIAL REFERENCETO HOMONID LOCALITY HATHNORA DISTRICT SEHORE MP INDIA

Dr. A. A.Khan 1,2 and Dr. Maria Aziz 3 . 1. Ex. Director, Geological Survey of India. 2. Director, Rajeev Gandhi Proudyogiki Mahavidyalaya, Bhopal-462042, M.P India. 3. Director, Pri-Med Care, Lewisville Texas 75067 USA. ...................................................................................................................... Manuscript Info Abstract ......................... ........................................................................ Manuscript History

In the area around Hatnora in the central sector of Narmada valley Quaternary deposits are confined in trough like basin, in this segment it embraces the quaternary landscape with stepped sequence of Narmada terraces (NT1 to NT3), where Boulder conglomerate is exposed at the base of these deposits. The Boulder conglomerate is persistent horizon and represent distinct fluvial-glacial phase of sedimentation. It is underlian by Boulder bed which is concealed under younger sediments in the valley.The Quaternary landscape embodies imprints of tectonisam which revealed that sedimentation had been controlled by mechanics of SONATA LINEAMENT ZONE. The Quaternary deposits of Narmada valley represent the thickest deposits in faulted and sinking platform under structural riparian rift trench which is undisclosed and remained unrevealed. The work so far carried out is restricted to quaternary deposits of exposed section of 18 m of river section only, no work has been done on concealed strata of quaternary deposits below th Boulder conglomerate, source of sediments, mode of transportation, deposition tectonic and environment of sedimentation to conceive the model of quaternary sediment. The inadequate data of concealed quaternary strata, environment of sedimentation, their diaposition and correlation in vertical chronology in time and space restricted the systemetic search of human remains with precise strata in synchronization of mechanics of tectonics and sedimentation in rift valley. The records of search of human skull and its remains revealed that the search was mostly random and confined around to hominid locality Hathnora from where skull of Homo erectus was reported by Sonakia (1984) except Sankhyan, A. R. (1997b) no further addition in tracing the human remains and its evolution is made. The present studies on various aspects of sedimentology of exposed section and bore hole logs across the vertical column of about 280 m in synchronisation of tectonisam and environment sedimentation in vertical chronology in faulted trough may provide clues in understanding the modal of quarternary deposits in rift 87 valley and may assist in search of human skull and its remains. In the present study 202 sediment samples were collected from exposed section and bore hole logs across the vertical column of 280 m to trace environments of sedimentation in Pleistocene to Holocene time. The statistical parameters viz MZ, STD, SKI, and KG of sediment samples were computed of Quaternary blanket of Narmada. The syntesised study of these parameters revealed that the quaternary deposits consists of sediments of three domain viz glacial, fluvioglacial and fluvial representing Boulder bed, Boulder conglomerate and Fluvial deposits of paleo-domain of Narmada (NT1 to NT3). The study of various parameters their binary relation, their concentration of plots cluster and trends and patterns revealed three breaks in sedimenttaion in vertical column at 120 m ,210 m and 280 m in increasing antiquity from base in Narmada valley. The binary clusters of plots of mean size and sorting, mean size and skewness, mean size and kurtosis are used in delineating and fencing boundary between the glacial and fluvio glacial and fluvial sediments. The concentration of these plots separates 87 % sediments fluvial domain from fluvio-glacial 94% of the fluvial-glacial from glacial. The glacial sediments are un-oriented and un-organized,fluvio-glacial moderately organized whereas, the sediments of fluvial domain are well organized are in synchronization to shape size sorting, and display a balance harmony and ecology in conformity of sedimentation Khan et.al (2015) which is also authnticated by heavy mineral assemblage of sediments of quaternary coloumn Khan et.al (2016). The Hathnora is located about 10 kms from Hoshangaba in up stream of Narmada; it is approchable by all weather roads. It has received attention of scientist after the recovery of Human Skull Sonakia (1984).The Quaternary deposits of the Narmada valley represent the thickest quaternary deposits in peninsular India. It contain the richest vertebrate fossil assemblage including only known Hominid fossil from the Indian sub-continent (Sonakia 1984) The boulder bed which yielded Hominid fossil from boulder conglomerate reported to be of fluvio-glacial origin for first time ( Khan & Sonakia 1992). Beside occurrences of ash beds with fossileferous boulder conglomerate ) Achariya (1993) indicates volcanic source. It appears that close to the completion of cycle of deposition of the boulder bed there was vilolent volcanic eruption in around Middle to uperPleistocen time which was subsequently settled down across the globe and in the pennisular India during the quaternary sedimentation. The occurrences of association of two marked horizons at different levels further revealed the cyclic eruption and settling of volcanic matrix was occurred with a pause during sedimentation. Khan et.al. (1991). Khan and Sonakia (1992) reported for the first time glacial and interglacial deposit in the Narmada valley, Central India which is represented The Narmada valley forms an ENE-WSW lineament and Quaternary deposits in it are confined to trough like basin in Peninsular India with digonestic morphogenetic and morphotectonic manifestation it a tectonic significance.
The Quaternary deposits of the Narmada valley represent the thickest Quaternary deposits in peninsular India which were deposited in a tectonic trench of SONATA LINEAMENT ZONE., the sedimentation has been controlled and synchronised by mechnisam of tectonisam during entire span of sedimentation from Lower Pleistocene to Holocene time. The association of fossils and stone implements with Quaternary deposits of Narmada are well described, quarries on various aspects on geology geomorphology, sedimentolgy, provenance of sediments, stream kinetics, stratigraphy, chronology ,tectonics, neotectonic, subsurface geometry, and overall model of Quaternary sedimentation of Narmada in faulted and oscillating rift trench remained silent undisclosed and unrevealed hidden misteries needed attention.In the present studies an attempt has been made for the first time to conduct detailed sedimentlogical studies at Hathnora and around on the merits of exposure of quaternary deposits in river sections, scarp section (18m) and bore hole logs, sediment samples have been collected precisely of entire quaternary coloumn in central sector of Narmada from base to the surface in increasing antiquity . In area around Hathnora four sections of sampling were selected with an objective to build-up and conceive the Quaternary sedimentological model of sedimentation of the Hominid locality Hathnora from where human skull was recovered by Sonakia (1984) in Narmada valley. About 280 sediment sample were collected from surface and subsurface quaternary deposits and from ongoing drilling project logs up to 180 m below the ground surface and carried out detailed statistical analysis in the laboratory which is presented in this paper. (Plate No QST-4, 5,6,& 7)

The Statistical Computations:-
The statistical analysis of sediment sample of the area around Hathnora Narmada valley was carried out particle size distribution curves were expressed on a Ф scale. Folk and Ward's (1957) graphical method was adopted to calculate mean size (Mz), sorting (σI), Skewness (SKI) and Kurtosis (KG). This method involves the measurement of several percentiles from cumulative curves (Ф5, Ф16, Ф25, Ф50, Ф75, Ф84 and Ф95). The formulae are as follows:

89
The computed textural parameters of sediments and their binary relation applied as tool in differentiating the various environments of Quaternary sedimentation are incorporated in (Plate QST-4 to 7), the same keys are used to analyze and differentiate sediments of various domains in vertical quaternary coloumn in Narmada valley.
Hathnora Section_I:- (22 °  The Hathnora Section _I is located at village Hathnora from where the sediment samples have been collected from the exposed section of Quateranery deposits of about 18 m scrap and from Boulder conglomerate exposed at base with section exposed about 5m.and fluvial terraces where their section are exposed in river section and scarp deposited in increasing antiquity. The Boulder conglomertae and Boulder bed are not fully exposed in the section; hence samples have been collected from on goinging bore hole logs below the surface of 280 m in increasing antiquity. Table No QST-4 Boulder bed:-(Glacial Deposits) Mean Size (MZ) The average mean size (MZ) of glacial sediments collected from bore holes around Hathnora, Shahganj, and Hoshangabad at the depth of about 100 of 180 m below the surface is 2.50Ø (Find sand). It ranges from -0.87Ø to 3.45 Ø i.e. the sediments consist of coarse to fine sand with silt and clay. The mean size of sediments exhibit heterogeneous association and show significant variation from bottom to top in increasing antiquity and stratigraphic column .The erratic behavior of size matrix and sudden rise in mean size at level of 70 m below the surface is conspicuous features of these deposits. The size distribution of sediment strata concealed under the wedge of boulder conglomerate is irractic and anisotroic in contrast to overlying sediments perhaps due to different environment of sedimentation controlled co-ordiated by high and fluctuating energy condition of sedimentation. The sediments seem to be derived from mixed sources by dragging and traction in an unorganised system of transportation on unstable platform.

Inclusive Graphic Standard Deviation (ð):-
The average standard deviation is 2.35Ø (very poorly sorted). It varies from 1.42. Ø to 3.875 Ø i.e. the sediments are poorly sorted to extremely poorly sorted. The majority of the sample shows the range of standard deviation of order ranging from 2.00Ø to 3.355Ø. Out of 50 samples 60% of sample display very poor sorting, 15% moderate sorting and 20% extremely poor sorting. The sediments display no significant improvement in sorting in vertical column between 30 to 70 m below the surface. The variation in sorting appears to have been related with mean size which is irratic and anisotropic, in addtion to diversiy it is affected by lateral mixing of sediments in valley at various points.

Inclusive Graphic Skewness (SKI):-
The average skewness is -0.258 Ø (very negative skewed). It ranges from -0.425 Ø to 02.20 Ø, which revealed that the sediments are very negative to positive skewed, 20% samples are symmetrical 15% positive skewed 45% negative skewed 15% nearly symmetrical and 5% very positive skewed. The 55% samples in middle column of Quaternary strata between 30 to 70 m below the surface are coarse skewed and 45% fine skewed. The sediments exhibit erratic values of skewness in sediments column between 30 to 120 m at depth below the surface. The sediments are assorted and as a whole show strong variation in departure towards coarseness as well as with fineness. The departure from symmetry appears to be related with deviation of mean size. In general the asymmetry passes from middle to upper segment are coarse skewed to fine skewed, which suggest constant variation in energy condition of the transporting system during sedimentation.

Graphic Kurtosis (KG):-
The average value of Kurtosis (KG) is 0.98 Ø (Mesokurtic). It ranges from 0.60 to 1.85Ø (very platykurtic to very leptokurtic). The 6% samples are very leptokurtic, 50% mesokurtic, 21% leptokurtic, 23% are platykurtic. The 68% of samples in the lower strata below 150 m at depth is mesokurtic where as in the middle segment of Quaternary strata between 75-150 m 40% are meokurtic where as in the upper sediments column between 30 to 120 m at depth below the surface 26 % sample are meokurtic.The relative values of kurtosis in relation to the depth and configuration of the basin suggests non static and oscillating platform of sedimentation in central part of valley related to the tectonics and consequential change in the energy condition of the system.

Fluvio-glacial Sediments:-(Boulder conglomerate):-Mean Size (MZ):-
The average mean size (MZ) is 1.228. Ø, it ranges from -2.580 Ø to 2.55 Ø i.e the sediments consist of very coarse sand to fine silt and clay. The maximum value -2.580 Ø is noticed between 15 to 40 m below ground level along the exposed wedge of Boulder conglomerate in river section. As whole sediments are assorted and size of sediment is 91 erratic and irregular. The mean size shows significant decrease in selected levels in the concealed sediment below the ground level beyond 40 m depth. The further down it mean size significant decline with strong fluctuation, appears to be due to strong lateral making of sediments brought by the streams resulted consequent upon the meeting of glacier at various points in the valley Renick of Singh (1980).

Inclusive Graphic Standard Deviation:-
The average standard deviation is 1.755 Ø (poorly sorted). It ranges from 1.002 Ø to 3.421. Ø The 54% of samples are poorly sorted and rest 44% very poorly sorted. The 94% of the samples show the sorting beyond 1.300 Ø, i.e. the majority of sediments are poorly sorted to very poorly sorted. The sediments show strong fluctuation in the sorting but exhibit no significant improvement up ward. The sediments considered to be deposited by glacial out wash from glacial front Eyles (1979).

Inclusive Graphic Skewness (SKI):-
The average skewness value is -0.21 Ø 8 (very negative skewed). The skewness of fluvio-glacial sediments varies from -0.415 to +0.325 Ø i.e. sediments are strongly coarse to fine skewed. The 24% of the samples are negative to very negative skewed, 30% negative skewed, 30% nearly symmetrical, 15% positive skewed and 1% are very positive skewed. The skewness value of these sediments indicates the diverse and heterogeneous association of the sediments ranging in size from fine and to gravel. The skewness shows sharp increase in its value upward in the bore hole sediment data section with local variation strongly suggest decline in energy condition of transporting agency in the valley.

Graphic Kurtosis (KG):-
The average kurtosis is 1.220 Ø (very leptokurtic). It varies from 0.8721 to 2.112 Ø. The 3% samples are platykurtic, 10% mesokurtic, 34% are leptokurtic, and 53% are very leptokurtic. The sediments were poorly sorted in the central part of size distribution curve than the tails. In the stretch of vertical section of sampling and data command of bore hole assuming the local variation the kurtosis does not show steady decrease in its value upward and the local variation seems to be due to local mixing of sediments brought by the flash streams resulted due to melting of glacier repeatedly in the valley. . is 1.625 Ø (medium sand) and it ranges between -0.425 Ø to 2.296 Ø (very coarse sand to fine sand). The average value of mean size of terrace NT-3 is The average value of mean size of terrace is 1.155 Ø (medium sand) and ranges from -0.625 Ø to 1.753 Ø (medium sand to very fine sand).
The average and range and mean size revealed that the sediments of older terraces NT-2 (NT-2A, NT-2B, and NT-2C). and NT-3 consist of very coarse to very fine sand where as younger terrace NT-1 (NT-2A, NT-2B) and NT2 predominantly consist of medium to fine sand, except with very little variation, the mean size of sediments progressively decreased in decreasing antiquity of terraces which appears to be related with repeated reworking of sediments, steady decrease in load carrying capacity of channel towards the latter stages of sedimentation. The variation in mean size suggests the fluctuation in energy condition of channel related with cilmatic changes in the watershed area.

Inclusive Graphic Standard Deviation:-
The average value of standard deviation for the sediments of NT-1 is 0.295 Ø (very well sorted) and it ranges from 0.268 to 0.395 Ø (well sorted to very well sorted), average value of sorting for the sediments of terrace NT-2 (NT-2A, NT-2B, NT-2C) is 1.625 Ø (moderately sorted) and it ranges from 0.233 to 0.396 Ø (well sorted to very well sorted), average value for the sediments of terrace NT3 is 0.376 (well sorted) and it ranges from 0.281 to 0.438 Ø (well sorted to very well sorted). The average and relative range values of standard deviation indicate that the sediments of older terraces NT3 are (moderately sorted to well sorted) NT2 (NT-2A, NT-2B, NT-2C), (well sorted to very well sorted) and NT1 well sorted to very well sorted and NTO are very well sorted. The sediments show progressive improvement in sorting from older terraces to younger terraces appears to be related with the mean size and energy condition of the channel, which constantly decrease towards the later phases of sedimentation. The size 92 distribution curve reveals more than one population of sediments whereas the probability plot reveal that the terraces NT-1 to NT3 average consist of 57% and 43% traction and suspension 1oad respectively. The traction load decreases in decreasing antiquity of terraces in the valley.

Inclusive Graphic Skewness (SKI):-
The Skewness (SKI) average value of for terrace NT-1 is +2. 25  HathnoraSection II:- (22 °  The Hathnora Section _II is located in between villages Hathnora-Nathankheri-Sardarpur in upstream of Hathnora, sediment samples have been collected from exposed section of 16 m as well as from on going drilling between the depths of 95 to 190 m below the surface.The Boulder conglomerate is partly exposed in river section and Boulder bed concealled under the younger deposits. Table No QST-5

( Glacial Deposits):-Mean Size ( MZ):-
The average mean size (MZ) of sediments of boulder bed is 0.650 which represent the sediments between the depth of about 105 to 150 m below the surface around Hathnora, Shahganj, and Hoshangabad.It varies from -0.770 to 3.355 Ø i.e. the sediments consist of coarse to fine sand with silt and clay. The (MZ) of these sediments exhibit heterogeneous association and display significant variation from bottom to top in increasing antiquity and stratigraphic coloumn.The erratic behaviour of mean size and anomolous rise in decresing antiquity revealed asymmetric and un organised sedimentation perhaps due to tectonics instability of sediementation platform.

Inclusive Graphic Standard Deviation (ð):-
The average standard deviation (ð) of sediemtsis 2.82 Ø (very poorly sorted) where as it varies from 1.42. Ø to 3.875 Ø i.e. the sediments are (poorly sorted to extremely poorly sorted). The majority of the sample shows the range of standard deviation of order ranging from 2.399 to 3.262 Ø, among these 65% of sample show poor sorting, 15% very poor sorting and 20% extremely poor sorting. There is no significant improvement in sorting in sediments column between 30 to 120 m below the surface. The variation in sorting appears to have been related with mean size, which is greatly affected by lateral mixing of sediments in valley and unstability of platform of sedimentation.

Inclusive Graphic Skewness (SKI):-
The average skewness (SKI) of sediments is -0.238 Ø (very negative skewed). Where as it ranges from -0.335 to 2.25 Ø which Indicate that sediments are (very negative to positive skewed), 10% samples symmetrical 15% positive skewed 45% negative skewed 15% nearly symmetrical 5% positive skewed and 10% very positive skewed. The 55% samples in middle column of Quaternary strata between 75-150 m below the surface are coarse skewed and 45% fine skewed. The sediments exhibit variation in values of skewness in sediments column between 30 to 120 m at depth below the surface The sediments are assorted and as a whole show strong variation in departure towards coarseness as well as with fineness. The departure from symmetry appears to be related with deviation of mean size. In general the asymmetry passes from middle to upper segment are coarse skewed to fine skewed, which suggest constant variation in energy condition of the transporting system perhaps due to climatic changes during sedimentation.

Graphic Kurtosis (KG):-
The average value of Kurtosis (KG) is 2.35 Ø (Masokurtic). It ranges from 0.860 to 3.10 Ø (very platy kurtic to very laptokurtic). The 6% samples are very leptokutic, 50% mesokurtic, 21% leptokurtic, 23% are platykurtic. The 68% of samples in the lower strata of quaternary deposits at depth of about 150 m below the surface is mesokurtic where as in the middle segment of Quaternary deposits between 75-150 m 40% are meokurtic where as in the upper sediments column between 30 to 120 m at depth below the surface about 26 % sample are meokurtic.The relative values of kurtosis in relation to the depth and configuration of the basin suggests oscillating platform of sedimentation in central part of valley related to the tectonic pulsation supplemented by change of climate and related in the energy condition of the system.

Fluvio-Glacial Deposits:-(Boulder conglomerate):-Mean Size (MZ):-
The average mean size (MZ) is 0.495 Ø. It ranges from -0.500 to 1.755 Ø i.e the sediments consist of very coarse sand to fine silt and clay. The maximum value -2.580 Ø is noticed in between depth of 15 to 40 m below ground level along the exposed wedge of Boulder conglomerate in river section.As whole sediments are asorted and size of sediment is irratic and anamolous. The (MZ) shows signigicant decrease in size from in the consealed sediment below the ground level byond 40 m depth. The further down it shows significant decline in the size but with strong fluctuation, appears to be due to strong lateral mixing of sediments brought by the streams resulted consequent upon the melting of glacier at various points in the valley Renick of singh (1980).

Inclusive Graphic Standard Deviation (ð):-
The average standard deviation (ð) is 1.699 Ø (poorly sorted). It ranges from 0.530 to2.180 Ø. The statistical analysis of sediment revealed that 54% of samples are poorly sorted and rest 44% very poorly sorted. The 94% of the samples show the sorting beyond 1.302 Ø. i.e. the majority of sediments are poorly sorted to very poorly sorted. The sediments show strong fluctuation in the sorting index but exhibit no any significant improvement upward. The sdiments considered to be deposited by glacial out wash from glacial front Eyles (1979).

Inclusive Graphic Skewness (SKI):-
The average skewness (SKI) value is -0.196 Ø (very negative skewed). The skewness of fluvio-glacial sediments varies from -0.366 to 0.330 Ø -i.e. sediments are strongly coarse to fine skewed. The 24% of the samples are (negative to very negative skewed), 30% negative skewed, 30% nearly symmetrical, 15% positive skewed and 1% are very positive skewed. The skewness value of these sediments indicates diverse and heterogeneous association of the sediments ranging in size from fine and to gravel. The (SKI) shows sharp increase in its value upward in the bore hole sediment section with local variation stongly suggest decline in energy condition of transporting agency in the valley to wards later phases of sedimentation.

Graphic Kurtosis (KG):-
The average kurtosis (KG) is 1.225 Ø (very leptokurtic). It varies from 0.885 to 1.752 Ø.The statistical anlysis revealed that 11% samples are platykurtic, 10% mesokurtic, 24% are leptokurtic, and 55% are very leptokurtic. The sediments were poorly soted in the central part of size distribution curve than the tails. In the stratch of vertical section of about 26 m below the ground surface. The kurtosis does not show stready decrease in its value upward and the local variation seems to be due to local mixing of sediments brought by the flash and flushing streams resulted due to climatic changes.

Fluvial Deposits:-Mean Size (MZ):-
The average value of mean size of sediments of paleo domain of Narmada of NT-1 is 1.750 Ø (fine sand) and it ranges from 6.755 to 3.200 Ø (medium to fine sand), average value of mean size of terrace NT-2 (NT-2A, NT-2B, NT-2C) is 2.390 Ø (medium sand) and it ranges between -0.425 to 2.296 (very coarse sand to fine sand) where as average value of mean size of terrace NT-3 is average value of mean size is 3.422 Ø (medium sand) and ranges from 0.255 to 0.355 Ø (medium sand to very fine sand).
The average and relative values of mean size revealed that the sediments of older terraces NT-2(NT-2A, NT-2B, NT-2C). and NT-3 consist of very coarse to very fine sand where as younger terrace NT-1 (NT-2A, NT-2B) and NT2 predominantly medium to fine sand, except with little variation, the mean size of sediments progressively decreased in decreasing antiquity of terraces which appears to be repeated working of sediments in valley. The variation in mean size suggests the fluctuation in energy condition of channel system due to climatic changes.

Inclusive Graphic Standard Deviation (ð):-
The average value of standard deviation for the sediments of NT-1 is 0.275 Ø (very well sorted) where as it varies from 0.195 to 0.350 Ø (well sorted to very well sorted). The Narmada terrace NT-2 (NT-2A, NT-2B, NT-2C) show average value 1.250 Ø (moderately sorted) and it varies from 0.156 to 1.960 Ø well sorted to very well sorted.The older terrace of Narmada indictes average value 0.376 well sorted and it ranges from 1.450 to 2.050 Ø (well sorted to very well sorted). The study of stanadrd deviation and its average and relative values of indicate that the sediments of older terrace NT3 average value is 1.596 Ø where as it varies from 1.430 to 2.052 Ø moderately sorted to well sorted NT2 (NT-2A, NT-2B, NT-2C) well sorted to very well sorted and NT1 well sorted to very well sorted and NT0 are very well sorted. The sediments show progressive improvement in sorting from older terraces to younger terraces appears to be related with the mean size and energy condition of the channel, which constantly declines towards the later phases of sedimentation. The size distribution curve reveals more than one population of sediments whereas the probability plot reveal that the terraces NT-1 to NT3 average consist of 57% and 43% traction and suspension 1oad respectively. The traction load decreases in decreasing antiquity of terraces in the valley.

Inclusive Graphic Skewness (SKI):-
The average value of (SKI) for terrace NT-1 is 0.  The Hathnora Section _III is located at between village Hathnora-Shahganj in down stream of Homonid locality, in this section sediment samples collectively have been taken from exposed section of about 16 m and from on going bore hole log of conealled sediments of Boulder bed and Boulder conglomerate between the depth of 93 to 195 m below the surface in increasing antiquity. Table No

Inclusive Graphic Standard Deviation (ð):-
The standard deviation of sediments of boulder conglomerate varies from 0.95 to 2.50 Ø i.e. the sediments are poorly sorted to very poorly sorted. The average standard deviation is 1.563 (extremely poorly sorted). Out of 50 samples 8% are moderately sorted, 10% poorly sorted and 82 % are very poorly sorted. The sediments near the source are conspicuously exhibit poor sorting and display significant improvement down the stream with local variation. As a whole the sediments are poorly sorted to very poorly sorted and heterogonous in nature sand are typically of fluvio glacial origin.

Inclusive Graphic Skeness (SKI):-
The average value of skewness (SKI) is 0.078 Ø i.e. the sediments are fine skewed. It varies from -0.48 +0.97 Ø i.e. the sediments are skewed very negative skewed very positive. Out of 50 samples 56% are skewed very positively, 15% skewed positive and 29% are skewed very negative. The average and relative value of sediments and their symmetry suggest the heterogeneous association of the sediments ranging from fine sand to gravel size. The skewness generaly increase in increasing antiquity with occasional variation. It is perhaps due to repeated reworking of the sediments up ward to wards younger deposits.

Graphic Kurtosis (KG):-
The average KG is 1.316 (leptokurtic). It ranges from 476 Ø to 1.52 Ø platykurtic to very leptokurtic among these 75% of the sample fall in very platykurtic class mesokurtic 45% leptokurtic. The assemblages of these classes of kurtosis suggest the dominance of coarse sediments (Folk 1957). Most of the samples show the Kurtosis value between 0.90 -1.20 except in the area around Hoshangabad where the sedimentation is perhaps affected by lateral mixing brought by the rejuvenated stream under high kinetic channel system in very unorganised organised sediment load from close source.

Fluvial Deposit:-(Sediments of Paleo-domain of Narmada):-MEAN SIZE (MZ):-
The average mean size (MZ) for the sediments of fluvial terraces of Narmada NT1 to NT3 is 2.458 Ø. The maximum value of (MZ) is -0.491 Ø is noticed near Shahganj while minimum 4.545 Ø at Hoshangabad near the confluence of Narmada of Tawa. The (MZ) shows the significant consistency in its value which corresponds to the gentle slope of the river bed down the stream. The mean size sharply decreases in increasing antiquity of sediment sequence.The significant increase in mean size in NT2 (NT2-A, NT2-B, NT2-C) may be due to reactivation of energy of channel system of transporting agency.

Inclusive Graphic Standard Deviation (ð):-
The average standard deviation (ð) for sediment of fluvial terrces is 0.691 (moderately sorted) and it ranges from 0.15 to 1.52 i.e. the sediments are very well sorted to poorly sorted from NT1 to NT3. The rise variation in and around ShahganjHoshangabad section down stream appears to be due to mixing of sediments brought by local tributaries. The sharp improvement in sorting is noticed around Hoshangabad seems to be related with the repeated reworking of sediments and slope element. The sudden decline in sorting co-efficientis resulted either to the nontransport of larger grain down current or due to loss of bed slope of Narmada in this segment of valley. The significant increase in sorting in down current of Hoshngabad indicates repeated reworking of sediments perhaps due to re-activation of channel related due climatic changes.

Inclusive Graphic Skewness (SKI):-
The average skewness (SKI) of fluvial sediments is 0.0281, it varies from -0.99 to 0.99 i.e. the sediments are course to fine skewed. It exhibits tendency of gradual increase in value down stream with local variation. This suggests relative increase of fine grain sediment down the stream. The samples upstream of Hoshangabad are negative skewed perhaps due to mixing of sediments of fluvio glacial origin.

Inclusive Graphic Kurtosis (KG):-
The kurtosis (KG) average value is 1.264 that sediments are (Leptokurtic) whereas it varies from 0.72 to 1.72 (Platykurtic to very leptokurtic). The average value suggests the fluctuation in the energy condition of the channel 98 system. The mean value of Kurtosis revealed more intensive sorting of central part of size distribution curve than the tails. There is strong tendency in increase of kurtosis value to younger sediments.( Plate No QST-6).
HathnoraSection IV:- (22 °   3.325Ø 6.330Ø The Hathnora Section _IV is located at between villages Hathnora-Shahganj-Hoshangabad section in down stream of Hominid locality, the samples are collected from exposed section of Quateranery deposits. In river section about 20 m scrap of sediments of Boulder conglomerate and fluvial terraces are exposed in increasing antiquity. The Boulder

Inclusive Graphic Skeness (SKI):-
The average of (SKI) is -0.355 Ø i.e. the sediments are fine skewed whereas skewness ranging from -0.48 +0.97 Ø which further revealed that the sediments are skewed very negative skewed very positive. The statistical analysis of plots of parameters their binary relation and indicate that out of 50 samples 56% are very skewed positively, 22% skewed positive and 22% are skewed very negative. The assemblage of sediments display variable skewness suggests the heterogeneous association of the sediments ranging from fine sand to gravel size. The skewness in general increase with increasing antiquity in lithostratigraphic sequence with occasional variation it is perhaps due to repeated reworking of sediments in same domain from glacial front.

Graphic Kurtosis (KG):-
The average (KG) is 1.225 Ø where as it ranges from 0.885 Ø to 0.330 Ø. Out of 50 sample 42% of the sample fall in very platykurtic 52 % Mesokurtic 6 % leptokurtic category.The configuration of plots and assemblage of different classess suggest the dominance of coarse sediments in boulder conglomerate (Folk 1957).The critical analysis of stattistical parameters show the Kurtosis value between of order of 0.90 Ø -1.20 Ø, except in the area around where the sedimentation is affected by subsequent mixing of sediments brought by the rejuvenated stream of oscillating energy condition system in the closing phase of sedimentation. It seems that sediments were transported and deposited in the high dynomics condition. The platform of sedimentation display unstability as witnessed by configuration of sediment load and grain morphology of quartz garain and other associated minerals Khan (1914) & Khan etal (1916). Inspite of strong variation in vales of kurtosis in the valley there is tendency in increase in kurtosis value in decreasing antiquity of sediment sequence.

Fluvial Deposit:-(Sediments of Paleo-domain of Narmada):-Mean Size (MZ):-
The average mean size (MZ) of sediments of terraces sediment NT1 to NT3 is 1.750Ø (medium sand), 2.398Ø (fine sand) and NT3 3.422Ø (very fine silt and clay), it varies from 0.755Ø to 3.20Ø, 0.255Ø to 0.355Ø and 0.330Ø to 0.375Ø, i.e. the sediments of these terraces predominantly consist of very coarse to fine silt and clay.The mean size inspite of variation in NT1 to NT3 decreases in increasing antiquity in the valley and exhibits distinct upward fining sequence, which is typical fluviatile environment of paleo-domain of Narmada.

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The relative average and range values of mean size of sediments of NT1 depict the predominance of finer clastics in younger terrace sediment of paleodomain of Narmada. It perhaps indicates the reworking of sediments from the older quaternary deposits in the valley. The NT2 and NT3 exhibit sharp contrast in the mean size with the sediments of NT1. The NT3 displays distinct variation in mean size, suggesting that the sediments were brought and deposited by palaeo-domain of Narmada under uniform and constant energy conditions during sedimentation.
The statistical analysis of plots average and relative mean size of sediments and over all size distribution indicate persistent breaks in the coloumn of sediments of paleodomain in Narmada at four stages of sedimentation during Quaternary time which is represented by Sohagpur, Shahganj, and Hoshangabad and Janwasa formation in Narmada Valley.

Inclusive Graphic standard Deviation (δ):-
It is the measure of sorting which reflects the consistency in the energy level of depositing medium. The average value of the sediments of NT1 to NT3 is 1.250Ø (poorly sorted), 1.596Ø (poorly sorted) and 1.699Ø (poorly sorted), 0.282Ø (very poorly sorted ) and it varies from 0.195Ø to 0.350Ø, 0.156Ø to 1.960Ø, 1.450Ø to 2.055Ø and 0.530Ø to 0.955Ø and 0.335Ø to 2.25Ø respectively. It indicates the sediments exhibit the improvement in sorting in decreasing antiquity towards younger terrace and inversely related with the mean size. The break in standard deviation depicts the four stages of sedimentation in Narmada.

Graphic Kurtosis (KG):-
It denotes peakedness of the curves of kurtosis (KG) (Platykurtic) points to a broad peak, while high value of KG (leprokurtic) denotes pronounced peak in the centre. The value of kurtosis of river terraces of Narmada is highly variable. The average value of NT1 is 1.646Ø (leptokurtic), NT2 1.415Ø leptokurtic, NT3 is 1.120Ø (Mesokurtic). The relative range value of NT1 is 1.520Ø to 1.990Ø (very leptokurtic), NT2 is 0.820Ø to 2.480Ø (platykurtic to very platykurtic) NT 0.679Ø to 1.429Ø (playkurtic to leptokurtic). The average value 1.326Ø suggest strong variation in the energy condition of Narmada river and a more intensive sorting of central part of size distribution curve than the tail. Inspite of strong variation in kurtosis value there is constant and steady decrease in skewness value in increasing antiquity of terraces in Narmada valley.

Summary and Conclusion:-
The Homonid locality Hathnora is located on the right bank of Narmada in Central sector in sehore district M.P. India from where Sonakia (1984) recovered human kull of Homo erectus from boulder conglomerate. The exposed section of Quaternary deposits is about 18 m and boulder conglomerate is exposed at the base of river section. In the vicinity quaternary deposits are confined in trough like basin, the boulder conglomerate is partly exposed and concealled under overlying younger deposits of paleo domain of Narmada ( NT1 to NT3). The boulder conglomerate is exposed only within the meandring loops of river due to lateral cutting. It is under liyan by boulder bed as intersected in drilling logs of different area in vicinity at an average depth of about 180 m. The Narmada in this segment embodies the quaternary landscape with stepped sequence of Narmada terraces (NT1 to NT3) which comprised of sediments of paleodomain of Narmada resting over Boulder conglomerate in Quaternary coloumn. The Boulder conglomerate is persistent horizon and represent distinct fluvio-glacial phase of sedimentation. It is underlian by Boulder bed which is concealed in the valley.The Quaternary landscape on surface embodies the imprints of tectonic which indicates sedimentation was controlled by mechanics of SONATA LINEAMENT ZONE.
The Quaternary deposits of Narmada valley represent the thickest deposits in central India which were deposited in faulted and sinking platform of rift trench which is undisclosed and unrevealed. The work so far carried out is restricted to quatenary deposits of exposed section of 18 m only, as such no work has been done on concealed strata of quaternary deposits their source of sediment mode of transportation deposition tectonic and environment to conceive the model of quaternary sedimentation. In absence of information and data of concealed deposits of Narmada rift valley has restricted the systematic search of human remains with precise strata in synchronization of 106 mechanics of tectonics and sedimentation. The records of search of human skull and its remains revealed that attemts were mostly random and confined to hominid locality Hathnora and around from where skull of Homo erectus was reported by Sonakia (1984), as such there after no further significant addition to the Paleontology and human remains in specific and its evolution. The present studies on various aspects of sedimentology of exposed section and bore hole logs across the vertical column of about 180 m in synchronisation of tectonisam and environment of sedimentation in vertical chronology is attempted which may provide clues and may assist in understanding the modal of quarternary deposits in Narmada valley in search of human skull and its remains.
In Hominid locality Hathnora in Section I to IV, 280 sediment samples were collect from exposed section and bore hole logs across The majority of the sample shows the range of standard deviation of order ranging from 2.00Ø to 3.355Ø. Among these 60% of sample show poor sorting, 20% very poor sorting and 20% extremely poor sorting. The sediments show no significant improvement in sorting in sediments column between 00.00 to 85.00 m from base below the surface. The variation in sorting appears to have been related with mean size, which is greatly affected by lateral mixing of sediments in valley at various points, improvement in sorting registered in the upper sequence byond 110.00 m with variation.These sediments are negative skewed to very positive skewed and of anisotropic nature. The average skewness is -00258 Ø (very negative skewed) (from base to 80.00 m). It ranges from -0.425 Ø to 02.20 Ø, which is interpretated that the sediments are very negative to positive skewed, 20% samples symmetrical 15% positive skewed 45% negative skewed 15% nearly symmetrical 15% positive skewed and 20% very positive skewed. The 55% samples in middle column of Quaternary strata between base to 55 m below the surface are coarse skewed and 45% fine skewed. The sediments exhibit erratic values of skewness in sediments column between bases to 30 m at depth below the surface. The sediments are assorted and as a whole show strong variation in departure towards coarseness as well as with fineness. The departure from symmetry appears to be related with deviation of mean size. In general the asymmetry passes from middle to upper segment are coarse skewed to fine skewed, which suggest constant variation in energy condition of the transporting system during sedimentation. Petijhon, (1957) The sediments are mesokurtic to very leptokurt in natur.The average value of Kurtosis of (KG) is 0.98 Ø (Mesokurtic). It ranges from 0.60 to 1.85Ø (very platykurtic to very leptokurtic). The 6% samples are very leptokurtic, 50% mesokurtic, 21% leptokurtic, 23% are platykurtic. The 68% of samples in the lower strata below  The relative percentage of samples and their valuves suggests the heterogeneous association of the sediments ranging from fine sand to gravel size. The skewness in general increase with increasing antiquity with occasional variation. It is perhaps due to repeated reworking of the sediments by stream resulting from the glacier. The kurtosis (KG) is 1.316 (leptokurtic) from base to 80m. It ranges from 476 Ø to 1.52 Ø platykurtic to very leptokurtic among these 75% of the sample fall in very platykurtic class Mesokurtic 45% leptokurtic. The assemblages of these classes of kurtosis suggest the dominance of coarse sediments (Folk 1957). Most of the samples show the kurtosis value between 0.90 -1.20 except in the area around Hathnora. It seems that sediments were transported and deposited in the oscillating kinetic sedimentation.
The binary plot of skewness v/s means diameter indicates that the fluvio glacial sediments cannot be limited to a particular domain due to erratic sedimentary processes and erratic and violent dynamic of transporting system. However, the prefential trend of cluster has been found which is most affective used in concentrating and separating 97 % percent fluvio glacial sediments form sediments of glacial origin. The affectivity of plot kurtosis v/s mean size may be used as tool in delineating a flexible boundary between the glacial and fluvio glacial sediments. The cluster trend is organised and prefential it separates 87 % of the fluvial sediment from the 94% of the fluvio-glacial.
The sediments of paleodomain of Narmada exhibit varaiable valves of mean size viz NT-1 average value is 1.730 Ø (fine sand) where as it varies from 3.200 to 6.745 Ø (medium to fine sand). The vaerage value of mean size of terrace deposits NT-2 (NT-2A, NT-2B, NT-2C) is 2.390 Ø (medium sand) and it ranges between -0.425 to 2.296 (very coarse sand to fine sand). The average value of mean size of terrace NT-3 is 3.422 Ø (medium sand) and ranges from 0.255 to 0.355 Ø (medium sand to very fine sand). The average and relative values of mean size in this domain of sediments revealed that the sediments of older terraces NT-2(NT-2A, NT-2B, NT-2C) and NT-3 consist of very coarse to very fine sand where as younger terrace NT-1 (NT-2A, NT-2B) and NT2 predominantly medium to fine sand, except with very little variation, it progressively decreased in decreasing antiquity of terraces which appears to be related reworking and steady decrease in load carrying capacity of channel towards the latter stages of sedimentation. The variation in mean size suggests the fluctuation in energy condition of channel system is related with unstability of valley floor and neotectonic mechanics of the area.
The average value of standard deviation for the sediments of NT-1 is 0.275 Ø (very well sorted) and it ranges from 0.195 to 0.350 Ø (well sorted to very well sorted). Average value of sorting for the sediments of terrace NT-2 (NT-108 2A, NT-2B, NT-2C) is 1.250 Ø (moderately sorted) and it ranges from 0.156 to 1.960 Ø (well sorted to very well sorted). Average value for the sediments of terrace NT3 is 0.376 (well sorted) and it ranges from 1.450 to 2.050 Ø (well sorted to very well sorted). The average and relative range values of standard deviation indicate that the sediments of older terraces NT31.596 Ø it ranges 1.430 Ø to 2.052 Ø are moderately sorted to well sorted NT2 (NT-2A, NT-2B, NT-2C) well sorted to very well sorted and NT1 well sorted to very well sorted and NT0 are very well sorted. The sediments show progressive improvement in sorting from older terraces to younger terraces appears to be related with the mean size and energy condition of the channel, which constantly decrease towards the later phases of sedimentation. The size distribution curve reveals more than one population of sediments whereas the probability plot reveal that the terraces NT-1 to NT3 average consist of 57% and 43% traction and suspension 1cad respectively. The traction load decreases in decreasing antiquity of terraces in the valley.
The average value of skewness for terrace NT-1 is 0.213 Ø (positive skewed). It ranges from 0.125 to 0.296 Ø (very negative skewed to very positive skewed). Average value of skewness for terrace NT-2 (NT-2A, NT-2B, NT-2C) is +-0.155 Ø (positive skewed), it ranges from -0.592 to 0.232 (very negative skewed to positive skewed). Average value for terrace NT-3 is +-0.116 (very positive skewed), it ranges from 0.380 Ø 0.129 Ø (very negative skewed to very positive skewed).The sediments of terrace NT-1 is strongly negative skewed where as the sediments NT2 to NT-3 are progressively positively skewed. The negative skewness is resultant of high energy condition whereas the positive skewness indicates low energy. The average and relative range values of skewness from NT-1 to NT-3 indicate the decrease in energy condition of channel towards the late history of sedimentation.The average value of Kurtosis for terrace NT-1 is 1.646 Ø (very platykurtic) it ranges from1.520 Ø to 1.990 Ø (platykurtic). The average value for NT-2 (NT2-A, NT2-B, NT2-C) is 1.415 Ø (very platykurtic) and ranges from 0.263 to 0.539 Ø very platykurtic). The average value for terrace NT3 is 1.120 Ø (very platykurtic) and varies from 0.679 to 1.429 Ø (platykurtic to very platykurtic).The sediments of NT3 are platykurtic to very platykurtic and NT-1 to NT3 are very platykurtic in nature. The average value of Kurlosis decreases upwards which indicate a normal peakednes s of sediments as well strong concentration of grains around median diameter. The relatively lower value of NT-1 indicates that most of the sediments were derived from close proximity and nearest provenances.
The synchronized study of these parameters revealed that the quaternary deposits consists of sediments of three domain viz glacial, fluvio-glacial and fluvial representing Boulder bed, Boulder conglomerate and Fluvial terrace deposits of paleodomain of Narmada (NT1 to NT3), which were deposited from Pleistocene to Upper Pleistocene time. The study of various parameters their binary relation, their concentration of plots cluster trends and patterns revealed three breaks in vertical column 120 m ,210m and 280 m i.e glacial, fluvio-glacial and fluvial phases of sedimentation in increasing antiquity in Narmada valley in Central India .