GSI-CHQ-14825 GEOLOGICAL SURVEY OF INDIA PROGRESS REPORT FOR THE FIELD SEASON 1963-64 & 1964-65 EXAMINATION OF GONDWANA SEDIMENTS OF MADHYA PRADESH AND INVESTIGATIONS OF POSSIBLE EXTENSIONS OF MARINE PALAEOZOIC FOSSIL HORIZONS By S. C. SHAH, Geologist and GOPAL SINGH, Assistant Geologist, Geological Survey of India. GSI-CHQ-14825 Progress Report for the Field Seasons 1963-64 & 1964-65 Examination of Gondwana sediments of Madhya Pradesh and Investigations of possible extensions of marine Palaeozoic fossil horizons By S.C. Shah, Geologist & Gopal Singh, Asstt. Geologist, Geological Survey of India. GSI-CHQ-14825 CONTENTS Summary Page Introduction 1 Physiography 1 Previous work 2 Lithology & Distribution of rocks 2 Fossils 4 Discussion on the age of some of the Gondwana beds of Satpura basin 8 Suggestions 10 Index to localities References GSI-CHQ-14825 Progress Report for the Field Seasons 1963-64 & 1964-65 Examination of Gondwana sediments of Madhya Pradesh and Investigations of possible extensions of marine Palaeozoic fossil horizons By S.C. Shah, Geologist & Gopal Singh, Asstt. Geologist, Geological Survey of India. Summary The important sections of the Gondwanas of Satpura basin between Morand river and Jabalpur (23°01' : 79°09') were examined during 1963-64 and 1964-65. The exhaustive collection of the fossil flora from Mohpani coalfield area has been made and the characteristic Karharbari forms viz. Gondwanidium validium and Buriadia sewardi are reported for the first time from this area. The search for fossils in Bagra-Denwas was made but only one addition to tae very-poorly known fauna from these beds could be made. A good collection of fossils was also made from Morand valley area. Some new forms are reported for the first time and definite Jabalpur age is being assigned to them. Earlier there was a record of Aruucarites oldhami from this area. This form was revised as Moranocladus oldhami by Seward & Sahni as the beds from which the fossil was derived, was considered as Lower Gondwanas. The present study indicates that there was some confusion. The beds are now assigned to Upper Gondwanas and in view of this and the study of the type specimens, the old name has been revived. The occurrence of this conifer from Lower Gondwanas was posing a palaeobotanical problem. Some new fossil localities from Jabalpur series are reported and from the already known localities, some new forms are recorded for the first time. Mention may be made of the record of a new species, Hausmannia crookshanki and Glossopteris sp. from Jabalpur series near Jatamao. One complete unionid shell is reported for the first time from Jabalpurs of Sehora ghat or Sher river section. The detailed study of the collection is in progress. GSI-CHQ-14825 INTRODUCTION The Gondwana rocks in the Satpura basin stretch between Morand river in the west and Jabalpur in the east and so far very little detailed palaeontological work has been done in this area. Crookshank (1936) gave the geology of the northern slopes of Satpuras between Sher and Morand rivers. In this basin are exposed the type sections of Pachmarhis and Jabalpurs. The beds of BagraDerwas are known so far for its very poor fossil content while its equivalent beds of Naleris are well known for vertebrate fossils. With a view to know more about the stratigraphy and fossil contents of these Gondwanas of Satpura basin, the systematic examination of the Gondwana sediments, particularly the Upper Gondwanas, was taken up by the authors. In addition, the Talchirs and the overlying Barakars were examined for any probable marine contents. This latter examination was taken up by the first author and in a few traverses, the second author also accompanied. Only some selected sections were studied and the collections of fossils were made. The first author left for field or 25.1.64 and returned or 1.4.64 during 1963-64 and in 1964-65, left or 1.2.65 and returned on 4.4.65 while the second author left for field on 11.2.64 and returned on 1.4.64 in 1963-64 and in 1964-65, he left or 3.2.65 and returned on 28.2.65. The investigation was carrier out under the guidance and supervision of Shri M.V.A. Sastry, Palaeontologist-in-Charge, Geological Survey of India who also visited the field between 9th and 13th March, 1965. The authors wish to express their thanks to the Superintending-Geologist-in-Charge, Madhya Pradesh and to various local authorities for the cooperation and the help rendered during the course of the present work. The area covered occurs as isolated patches in Hoshangabad, Betul, Nar-singhpur and Jabalpur districts of Madhya Pradesh. It falls in the Survey of India topo sheets 55 F/7, 11, 14, and 15; 55 J/6, 7, 9, 10, 11, 12, 14, 15 and 16, 55 N/5 and 55 M/16. Wherever, the one inch sheets were not available, quarter-inch sheets were made use of. Physiography The sections examined are in isolated patches found over a wide area. The topography is gently undulating, near Budhimai, Paraspani and Gottitoria. Pachmarhi with a height of 1476 metres is the highest point in Madhya Pradesh. These are mostly flat topped hillocks. The areas examined are mostly forested consisting of teak, sal and bamboo trees. The wild life is varied and in recent years, some of the carnivores have become menacing catte lifters. The rock exposures are very scanty since the strata are concealed by abnormally thick recent alluvium. The area is drained by Morand, Tawa, Sitareva, Sher and Narbada rivers and Dudhi nala. Monsoonal streams are many. It is a common feature in Pachmarhi sandstones to find springs giving 2 GSI-CHQ-14825 rise to some small perennial stream-letes. The hot spring near Anhoni is an important place of pilgrimage. Previous work The most recent and exhaustive geological account of the Satpura basin is that of Crookshank (1936). The unpublished report of Jabalpur beds of Morand river, Paraspani and Sher river by C. Nageswara Rao and R.N. Shrivastava (1952-53) also gives a good account. Recently, there has been some valuable contributions on the palaeobotany of the Jabalpur beds, the important ones being that of Bose & Sukhdev (1959), Sukhdev (1959) and Agarwal (1963). Lithology and Distribution of rocks The geological formations in the area are as follows:Alluvium Deccan Trap with intertrappeans Upper Jabalpurs including Chaugan stage Bagra - Denwas Mahadevas Pachmarhis Gondwanas Lower Bijoris including Almods Moturs Barakars (Karharbaris) Talchirs Metamorphics Metamorphics They are seen exposed near north of Budhimai, Kaveli, Piparia, Fatehpur, Mohpani, Lametaghat and Jabalpur and are represented by granite-gneisses and schistose rocks. The granitegneisses are leucocratic, medium grained to coarse grained; and consist of quartz, felspar, biotite, and muscovite. The schistose rocks are seen near Kaveli and Lametaghat. Talchirs They are noted near Gotabari, south of Pipariya along the Pipariya-Pachmarhi road, Fatehpur and Mohpani area. They are represented by green boulder clays, lenses of sandstones and avoid masses of secondary limestones. Among the boulders are varieties of granites, quartzites and 3 GSI-CHQ-14825 limestones. The Talchir exposures are seen only in a small area. No organic remains of any kind were found in these rocks. Barakars (including Karharbari) Barakars are exposed in Sitareva sections near Mohpani. They are represented by sandstones, shales, carbonaceous shales and coal-seams. The rocks are fossiliferous, the carbonaceous shales being highly fossiliferous. These rocks are highly inclined and form the southern limb of an anticline. The flora contains Glossopteris, Gangamopteris. Buriadia sewardi, Gondwanidium validium, etc. Moturs Moturs are seen only in a few places and are represented by sandstones and red clays. Bijoris including Almod beds They are seen exposed near Khora, Tamia, Ranipura and Almod and are represented by buff and olive coloured clays with occasional sandy horizons. Near Khora and near Tamia they are highly fossiliferous. The microfloral assemblage of the samples from the type area is being studied in the laboratory. Pachmarhis Pachmarhis are exposed in the main Mahadeva range and are studied near Pachmarhi. They are represented by coarse white sandstones separated from one another by white quartz pebbles. The sandstones are very uniform and are mostly coarse to medium grained. Iron infiltrations are noted in them. No fossil of any kind is seen in the sandstones in the area examined. Bagra-Denwas The Bagras are chiefly conglomeratic and the pebbles and boulders are mostly of granites, quartzites, jasperoid conglomerates, etc. The matrix is usually argillaceous and at times calcareous. Bagras are highly calcareous around Kaveli. The Denwas consist of sandstones and variegated clays, Bagra-Denwas are seen north of Budhimai, Kaveli and near Shahavan and Matkuli. Jabalpurs They are represented by conglomerates, sandstones, clays, earthy haematite, coal carbonaceous shale, red clays and chert. Jabalpurs are chiefly developed between Jirnapura-Pipalgota around Paraspani and near Jabalpur. They show slight northerly dip. 4 GSI-CHQ-14825 The conglomerates include small rounded pebbles of jasper, quartz in a sandy matrix. The sandstones are massive and coarse to medium grained. At places the sandstones are micaceous, ferruginous or carbonaceous. Twigs of plants are seen preserved in these sandstones. At some places, the sandstones are highly ferruginous. Earthy haematitic shales are very common near Budhimai, Pipalgota and Paraspani. They are highly fossiliferous. Coal is seen in Morand, and Sher river sections as well as north of Jatamao. No coal or carbonaceous shales were noted around Paraspani. White clays are very predominent around Imjhiri and Jabalpur and. are also seen around Paraspani. Cherty beds are seen near Golanpura. In addition to plant fossils, the complete shell of Unio is reported for the first time from the Jabalpurs, from Sehore ghat, Sher river section. Deccan trap with Intertrappeans They occur as regular flows as dykes and sills and overlie the Jabalpurs unconformably. They are represented by hard compact basaltic rocks. Spheroidal weathering is seen in them. The Intertrappeans are particularly developed near Deothan and Napupura and they are highly fossiliferous. The preservation is not good. Fossils The Barakars, Bijoris, Bagra-Denwas, Jabalpurs and Intertrappeans have yielded fossils. The plant fossils, invertebrates and vertebrates found in these beds are listed below:Gondwanas I. Vertebrate (A) In Denwa clays near Shahavan portion of Labyrinthodont. II. Invertebrate (B) On the Sehora ghat Sher river ----- Unio sp. section. III. Plant fossils (A) BARAKARS Siterva river section near Mohpani : (22°45' : 78º 50') Schizoneura gondwanensis Glossopteris indica Gangamopteris cyclopteroides Vertebraria indica Gondwanidium validium Noegerrothiopsis hislopi ------ Condylar 5 Buriadia sewardi Samaropsis Sp. (B) JABALPURS i) Morand river sections : Equisetaceous stem Sphenopteris of arguta Dicksonia sp. Ptilophyllum acutifolium P. cutchense Dictvozamites sp; ? Nilssonia sp. ? Ctenis sp. Desmiophyllum indicum Elatocladus jabalpurensis E. (? Torreyites) sp. Retinosporites indica Brachyphyllum of. rhombicum Araucarites cutchenais ii) Near Budhimai (22°22' : 77°32' ) on the Road to Pipalgota. Suhenopteris sp. Ptilophyllum acutifolium P. cutchense Bucklandia indica Thinnfeldia sp. Dictyozamites sp. iii) 1 km east of Jatamao (22°23' : 77°33') Sphenopteris sp. Hausmannia dichotama H. buchii H. crookshankii sp. nov. GSI-CHQ-14825 6 Ptilophyllum. acutifolium P. cutcherse Bucklandia indica Dictyozamites falcatus D. indicus Glossopteris sp. of. taeniopteroides Desmiophyllum indicum Retinosporites indica Araucarites cutchensis iv) Paraspani: About 2 km in the nala east of the village. Sphenopteris ? arguta Sphenopteris sp. Hausmannia dichotoma Ptilophyllum acutifolium P. cutchense Dictyozamites sp. Nilssonia fissa N. rajmahalensis N. sp. Williamsonia of. gigas Desmiophyllum indica Araucarites cutchensis v) Imjhiri: In the white clays of abandoned clay pit near the Forest line. Cladophlebis sp . Nilssonia meddlicottiana N. sp. Ptilophyllum acutifolium vi) Sehora ghat in the Sher river section Cladophlebis sp. Glossopteris sp. Ptilophyllum acutifolium P. cutchense GSI-CHQ-14825 7 GSI-CHQ-14825 Coniferocaulon rajmahalense Elatocladus sp. vii) In the white clays near Bara Simla, near Jabalpur. Ptilophyllum acutifolium P. cutchense P. jabalpurerse Williamsonia of. gigas Araucarites cutchensis Retinosporites indica Eladocladus jabalpurensis Brachyphyllum rhombicum Pagiophyllum of peregrinum List of plant fossils from Jabalpur series of Satpura basin from above localities 1) Equisetaceous stem 2) Sphenopteris sp. of. arguta 3) Sphenopteris sp. 4) Dicksonia sp. 5) Cladophlebis sp. 6) Huasmannia dichotoma 7) H. buchii 8) H. crookshanki sp. nov. 9) Glossopteris sp. of. taeniopterides 10) G. sp. 11) Thinfeldia sp. 12) Ptilophylum acutifolium 13) P. cutchense 14) P. jabalpurense 15) Bucklandia indica 16) Williamsonia sp. of. gigac 17) Nilssonia meddlicottiana 18) N. fissa 19) N. rajmahalensis 8 20) N. sp. 21) Dictvozamites falcatus 22) D. indicus 23) D. sp. 24) ? Ctenis sp. 25) Desmiophyllum indicum 26) Elatocladus jabalpurensis 27) E. (? Torreyitcs) sp. 28) Retinosporites indica 29) Brachyphllum of. rhombicum 30) Pagiophyllum of. peregrinum 31) Araucarites cutchensis GSI-CHQ-14825 Discussion of the age of some of the Gondwana beds of Satpura basin I Barakars of Mohpani coalfield Feistmantel (1879) gave the first palaeontological account and compared the flora with that of Karharbari coalfield and assigned a Karharbari age to them. Fox (1933) gave a geological account of the area and expressed that there was no doubt about the Barakar age of these coalmeasures. Crookshank (1936) observed that since none of the fossils characteristic of Karharbari horizon in these coalmeasures is present, Karharbari horizon be dropped and the beds be referred as Barakars. The present collection includes two typical Karharbari forms, Gondwanidium validium and Buriadia sewardi which are being reported for the first time. Microfloral assemblage also indicates a Karharbari age to these coalmeasures. II Upper Gondwanas of Morand Valley J.G. Medlicott (1860) and W.T. Blanford considered these formations to be Damudas while H.B. Medlicott (l871) gave a different view and regarded them as either Damudas or even possibly Mahadevas. Fox (see Pascoe 1926) referred these beds not only to Damudas but suggested a possible Barakar affinity. But Crookshank (1936) was the first to assign them as Upper Gondwanas and possibly to Jabalpurs. The present collection includes typical Jabalpur forms. Definite Jabalpur age is being confirmed to these coal-bearing formations of Morand valley - (Shah & Gopal Singh, 1965). Earlier there was a record of Araucarites oldhami from Morand valley. It was revised as Moranocladus oldhami by Seward & Sahni since the beds from which it was collected was considered to be Lower 9 GSI-CHQ-14825 Gondwanas, and that the conifer Auracarites is not referred from the geologically lower horizons. However the recent field study indicates that there is no Lower Gondwana patch present in the area. Accordingly the old name Araucarites oldhami has been revised (Shah and Gopal Singh 1965). This has solved the problem of the occurrence of this conifer from Lower Gondwanas of India, which remained a palaeobotanical problem. III Jabalpurs of Satpura basin Medlicott (1869) described the Upper Gondwana beds near Jabalpur as Upper Damudas. Feistmantel (1878) showed that the Jabalpur flora has an affinity both with Rajmahals and Umia beds of Cutch and is probably intermediate between the two in age. The flora is believed to be of Upper Jurassic age. Matley (1921) after studying the field relationships of Jabalpur and Lameta beds in the neighbourhood of Jabalpur showed that the former are probably also Cretaceous in age. Basing his arguments on Crookshank's work, Fox (1931) recognised two floral stages in the 'Jabalpur Series' with Jabalpur stage above and Chaugan (Kota) stage below. Regarding the age of Jabalpurs, Crookshank (1936) observed that it is almost certain that the Jabalpur series is Middle or Lower Jurassic in age. Jacob (1951) favours an Upper Jurassic age and according to him the subdivisions of Jabalpurs into two stages seems unnecessary. Agarwal (1963) after the discovery of some forms also favours the idea that the subdivisions of Jabalpurs into two stages seems unnecessary. Sukhdev (1959) observed that in the micro-fossils of Jabalpurs there is an abundance of conifer pollen grains and that of cycadophytes are poorly represented. Bose and Sukhdev (1959) have reported the Wealden forms from Jabalpurs of this basin. The preliminary palaeobotanical studies of Jabalpur series of the present collection have thrown some additional light on the age and classification. The record of various cycadophytes fronds like Ptilonhyllum, Dictyozamites, Nilssonia and Taeniopteris shows a clear affinity towards Rajmahal flora on one hand and some definite presence of characteristic Wealden ferns viz., Onychiopsis and Weichselia on the other hand is probably suggestive of Upper Jurassic to Lower Cretaceous age to the Jabalpurs. However, detailed work on the Jabalpurs in these areas would fix the age limit of the Jabalpurs more clearly. The following notes on this Project, have been published so far :1. Hausmannia crookshanki sp. nov. from Jabalpur Series of India, Current Science, Vol. 33, No. 24, 1964. 2. Observation on Moranocladus oldhami (Zeiller) - an appraisal of the genus, Moranocladus, Current Science. Vol. 34, No. 7, 1965. 3. Fossil flora of coal-bearing formations of Morand Valley, Satpura basin. Madhya Pradesh, 10 GSI-CHQ-14825 Abstr. Proc. Ind. Sci. cong. 51st and 52nd session, 1965. 4. On the occurrence of Glossopteris from Jabalpur Series (In press). 5. Discovery of Karharbari plants from Mohpani Coalfield Madhya Pradesh (In press). Suggestions The following important suggestions are made here for further work:- 1. A thorough search of all Bagra-Denwas of Satpura basin to be taken up, as the equivalents Maleri beds are well known for their vertebrate fossils. 2. The stratigraphy and fossils of Jabalpurs to be worked out in greater detail and the upper and lower age limits of the Jabalpurs be more precisely defined. Index to the localities Almod (22°23' : 78°22') Anhoni (22°38' : 78°22' ) Bachai (22°52' : 79°18' ) Bagra-Tawa (22°38' : 77°57' ) Budhimai (22°22' : 77°32' ) Deothan (22°20' : 77°34') Fatehpur (22°41' : 78°33') Golanpura (22°17' : 77°41') Gotabari (22°27' : 77°37') Gottitoria (22°44' : 78°48') Imjhiri (22°50' : 79°18') ##### (23º61' : 77º09') ##### (22º23' : 77º09') Jiranapura (22°19' : 77°28') Kaveli (22°31' : 77°49') Khora (22°20' : 77°43') Lametaghat (23°07' : 79°50') Mohpani (22°45' : 78°50') Matkuli (22°55' : 78°36') Napupura (22°21' : 77º37') 11 GSI-CHQ-14825 Pachmarhi (22°27' : 77°27') Paraspani (22°37' : 78º02') Pipalgota (22°24' : 77°40' ) Pipariya (22°46' : 78°21') Ranipura (22°34' : 77°59') Sehora (22°52' : 79°21') Sohagpur (22º42' : 78°21') References Agarwal, A.P. 1963 A note on Stratigraphy of Palaeontology of Jabalpur. Curr, Sci., 32, 411. Bose, M.N & Sukh Dev 1959 Occurrence of two characteristic Wealden forms in the Jabalpur Series. Nat. 183 : 130-131. Blanford, W.T. 1869 On the Geology of the Taptee and Nerbudda valleys and some adjoining District. Mem. Geol. Surv. Ind., VI, i-xii, and 163384. Crookshank, H. 1936 Geology of the Northern slope of the Satpuras between the Morand and the Sher rivers. Mem. Geol. Surv. Ind., 66. Pt. 2. Feistmantel, 0. 1876 Fossil flora of Jabalpur group (Upper Gondwana) in the SoneNarbada region. Pal. Indica Series XI, Vol. 11, pt. 2. Fox, C.S. 1932 The Gondwana System and the related formations. Mem. Geol. Surv. Ind., 58. -------- 1933 The Lower Gondwana coalfields of India. Mem. Geol. Surv. Ind., LIX. Jacob, K. 1951 Dictyozamites bagjoriensis sp. nov. from the Mesozoic of Rajmahal hills, with notes on the distribution of the genus. Proc. Nat, Inst. Sci. India, 17 : 7-14. Medlicott, J.G. 1860 On the Geological Structure of the Central portion of the Nerbudda dist. Mem, Geol. Surv. Ind., II, 97-278. --------------- 1871 Note on the Narbada Coal-basin. Rec. Geol. Surv. Ind., IV. 66-69. Nageshwara Rao, C. & Srivastava, 1952-53 R.N. Progress Report for 1952-53 (Unpublished) Pascoe, E.H. 1926 General Report for 1925. Rec. Geol. Surv. Ind., LIX. Pt. I. 8587. Sukh Dev 1959 The fossil flora of the Jabalpur series - 3. Spores and pollen grains. Palaeobotanist, 8 : 43-56.
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