Geology and stratigraphy of Raniganj bsain ppt (1).pptx

geology and stratigraphy of raniganj basin,

1. Geology and stratigraphy of Raniganj bsain Under guidance of Proff . Dr. K. Milan Kumar Sharma Department of Geology Central University of Punjab, Bathinda 151401 Name – Vipul kumar Reg. no. 20mscegs25

2. c ontent Introduction Stratigraphic classification Stratigraphic succession Talchir formation Karharbari formation Barakar formation Barren measure Raniganj formation Panchet formation Supra Panchet Environment and climate Economic significance Conclusion

3. Introduction H.B. Medlicott named the Gondwana in 1872 after the ancient kingdom of the Dravidian Gonds in central india . It consists primarily continental succession of sandstone and shale with coal seams, remains of fauna and flora with marine imprints at places. Gondwana sedimentation consists of thick sequence of shallow water, fluviatile and lacustrine sediments having an aggregate thickness of about 6000-7000m

4. Source ; JOURNAL GEOLOGICAL SOCIETY OF INDIA Vol.76, September 2010, pp.251-266 Stratigraphic Correlation between Different Gondwana Basins of India Fig. Distribution of Gondwana basin in india

5. Supera Panchet Fm Panchet Group Panchet Fm. Lower Gondwana Damuda Group Ranigang Fm. Talchir Group Barren Measures Fm. Barakar Fm. karharbari Fm. Talchir Fm.

6. profile diagram ; locality area jaideb ). SOURCE; JOURNAL GEOLOGICAL SOCIETY OF INDIA Vol.76, September 2010, pp.251-266 Stratigraphic Correlation between Different Gondwana Basins of India

7. Stratigraphic succession of the Raniganj basin Talchir formation Talchir rock unit devided into three stratigraphic unit Unit A Unit B Unit C Fossils- Glossopteris , Eurydesma,Priondomya , Fenestella Source: Gondwana Research, V 7, No. 2, pp. 339-352. 2004 International Association for Gondwana Research, Japan. Deglacial Control on Sedimentation and Basin Evolution of Permo -Carboniferous Talchir Formation

8. Karharbari formation The litho-unit consists solely of grey to brown and mottled carbonaceous sandstones, grits and conglomerates with occasional coal seams and fire clays. The sandstones are usually dirty with angular to sub-angular quartzand feldspars. These also contain reworked clasts of shale/sandstone of the Talchir . it contains coal seam and some plant fossils Gondwandium burriada biozone is considered as a characteristics of the formation.

9. Barakar formation Its shows two distinct type of lithofacies. Lower Barkar Braided channel facies assemblage. Upper barker Mixed meandering channel estuary. In barakar formation coal seam divided into three zone on the basis of condition of deposition sedimentation character. Lower zone – monosaccate /zonate apiculate/ varitrilets Middle zone– scheuringipallenites associated with striated disaccated Upper zone- microflora

10. Saurce: Arab J Geosci (2016) 9:300 DOI 10.1007/s12517-016-2318-9

11. Barren measures The Barren Measures are characterised by the absence of coal seams. The Barren Measures Formation is of fluvialelacustrine origin. The Barren Measure Formation is the thick sequences of monotonous grey to black micaceous and often carbonaceous shale with thin sand intercalation, splits into thin slices along fissile planes. Sub angular quartz grains are often seen distributed within this unit at irregular intervals. The Barren Measures shale as a reservoir for shale gas.

12. Raniganj formation Seven facies were recognised in the Raniganj strata. Massive, sand-supported conglomerate Trough and planar cross-bedded sandstone Massive to horizontal bedded/laminated sandstone Ripple cross-laminated sandstone Interbedded sandstone and shale Shale and carbonaceous shale Coal Generalized stratigraphic sequence of Raniganj Coalfield Source: International Journal of Coal Geology doi:10.1016/j.coal.2018.06.016

13. Panchet formation Panchet formation as fluvio-lacustrine deposits The lower part is 50–100 m thick and is dominantly composed of green- coloured micaceous laminated siltstones. The middle part is about 200 m thick, and is composed of red- coloured , laminated shaly siltstones. The upper part is 300–400 m thick and is composed predominantly of grey- coloured sandstones. Lystrosaurus fauna preserved in the Panchet formation indicates an overall fluvial-lacustrine paleoenvironment .

14. Supra panchet Damodar valley capped by this formation. Prominent lithounits are very coarse grain sandstone interbeded with conglomerate, jasper quartzite, micaceous ferrginous silt and clay.

15. Environment and climate On the basis of lithology the Gondwana environment is glacio-marine, humid fluvial environment. In Gondwana climatic variation are reported on the basis of fossil assemblage zone.

16. Economic significance Barakar and Raniganj formation constitute coal bearing rocks. Ferrugniou iron shale known as iron stone shale. Various type of clay are found in Gondwana , these clay are used in refractory bricks and china dish. Sandstone are used as a building materials.

17. C onclusion Studies of sedimentological structure and deposits. The coal seams are found only in the lower group within Karharbari and Barakar Formations of Lower Permian and Raniganj Formation and its equivalents of Upper Permian age. Barakar Formation is the major storehouse of coal in all the basins having more than 90% of total resource of the country. Karharbari and Raniganj Formations present only in a few basins Fossils are restricted only in few horizons and well-constrained fossils are extremely rare. No volcanism, is present in Gondwana Basins of India during the entire period of sedimentation except Rajmahal Trap in eastern basins

18. References Bhattacharya et. al. Early Permian transgressive–regressive cycles: Sequence stratigraphic reappraisal of the coal-bearing Barakar Formation, Raniganj Basin, India, J. Earth Syst. Sci. (2018) 127:29 c Indian Academy of Sciences. Abir Gupta, Early Permian Palaeoenvironment in Damodar Valley Coalfields, India: an Overview FlatG2, Kailaslz Apartnient , ID Second Street, Modern Park, Snntoshpur ; Calcutta - 700075, India (Monoprint received April 16, 1998; nccq9ted . jaunary I, 1999) , Gondwana Research, V. 2, No. 2, pp. 149-165. 0 I999 international assocition,of Gondwanu Research japan . Glossopteris Flora from Barren Measures, Pranhita –Godavari Basin, India Chinnappa Chopparapu1#*, Rajanikanth Annamraju2 , S. Suresh Kumar Pillai1 and Pauline Sabina Kavali1 1Birbal Sahni Institute of Palaeosciences , 53 University Road, Lucknow - 226 007, India, JOURNAL GEOLOGICAL SOCIETY OF INDIA Vol.94, October 2019, pp.405-410 Fluvial architecture of the upper Permian Raniganj coal meassure in the Damodar Basin , EASTERN INDIA S.M. CASSHYAP and AJAY KUMAR Department of Geology, Aligarh Muslim University, Aligarh 202 001 (India) , Sedimentary Geology, 51 (1987) 181-213 181 Elsevier Science Publishers B.V., Amsterdam - Printed in The Netherlands . Diagenesis and genesis of clay minerals in the Triassic sandstones of the  Panchet and  Parsora formations, Damodar–Son Basin, India Babar Ali Shah, Journal of Sedimentary Environments . Nature of Boundary and Other Faults in Raniganj Gondwana Rift Basin Sekhar Chandra Ghosh Geological Survey of India, Kolkata, India , chapter 5. The Raniganj Coal Basin: an example of an Indian Gondwana rift S.C. Ghosh Department of Geological Sciences, Jadavpur University, Calcutta 700 032, India Accepted 20 August 2001, Sedimentary Geology 147 (2002) 155 – 176 .

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