Palynological dating of subsurface Triassic Strata near Durgapur, West Bengal

R.S. Tiwari

doi:10.54991/jop.1977.1061

Authors

R.S. Tiwari Birbal Sahni Institute of Palaeobotany, 53, University Road, Lucknow 226007, India

DOI:

https://doi.org/10.54991/jop.1977.1061

Keywords:

Palaeopalynology, Palynomorphs, Triassic, West Bengal (India)

Abstract

Palynological analysis of samples in Bore-hole RD-l near Durgapur, district Burdwan has suggested the presence of Triassic rocks in this region. In this eastern region of the Raniganj Coalfield no Lower Gondwana sediments are exposed and so far their presence was only conjuctured, but the present study confirming the presence of Triassic sediment, opens a probability of Permian deposition, an extension of the Raniganj Formation, beneath them. Two palynological assemblages, late Lower and the early Middle Triassic in age, have been identified - the latter with a so-far-unknown composition having cf. Striomonosaccites dominance, besides the usual Triassic palynomorphs.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Balme BE 1970. Palynology of Permian and Triassic strata in the Salt Range and Surghar Range, West Pakistan. Strat. Bound. Problems Perm. Triass. W. Pakistan. Uni. Kansas. Dept. of Geol. Special Publ., 4: 306-453.

Banerji J & Maheshwari HK 1974. Palynology of the Panchet Group exposed in the Nonia Nala, near Asansol, West Bengal. The Palaeobotanist, 21 (3): 368-372. https://doi.org/10.54991/jop.1972.1500

Banerji J & Maheshwari HK 1975. Palynology of Panchet Group exposed in Sukri River, Auranga Coalfield, Bihar. The Palaeobotanist, 22 (2): 158-170. https://doi.org/10.54991/jop.1973.936

Bharadwaj DC & Srivastava Shyam C 1969. A Triassic miofloral from India. Palaeontographica, 125B: 119-149.

Bharadwaj DC & Tiwari RS 1977. Permian Triassic miofloras from the Raniganj Coalfield, India. The Palaeobotanist, 24 (1): 26-49. https://doi.org/10.54991/jop.1975.971

Bharadwaj DC, Tiwari RS & Anand-Prakash 1979. Permo-Triassic palynostratigraphy from Damodar Basin, India. Biol. Mem., 4.

Chandra A & Satsangi PP 1965. Microflora from the Dicroidium bearing beds of Sidhi District, Madhya Pradesh. Curr. Sci., 34 (1): 459-460.

Dass S & Chandra A 1972. Mioflora from the carbonaceous shales in he bore-hole at Molandighi near Durgapur, West Bengal. Proc. Sem. Paleopalynol Indian Stratigr., Calcutta: 51-55.

Fox CS 1934. The Lower Gondwana coalfields of India. Mem. geol. Surv. India, 50: 1-386.

Gee FR 1932. The geology and coal resources of the Raniganj Coalfield. Mem. geol. Surv. India, 61: 1-343.

Goubin N 1965. Description et repartition des principaux pollenites Permiens, Triasiques et Jurassiques des Sondages du Basin de Morondava (Madagascar). Rev. Inst. Franc. Petrol. Ann. Combust. Liq., 20 (10): 1415-1461.

Kar RK 1970a. Palynological distinction between Upper Permian and Lower Triassic in Raniganj Coalfield, Bengal, India. The Palaeobotanist, 18 (2): 118-126. https://doi.org/10.54991/jop.1969.825

Kar RK 1970b. Sporae dispersae from Panchet (Lower Triassic) in the Bore core No. RE 9, Raniganj Coalfield, West Bengal. The Palaeobotanist, 18 (1): 50-62. https://doi.org/10.54991/jop.1969.818

Maheshwari HK & Banerji J 1975. Lower Triassic palynomorphs from the Maitur Formation, West Bengal, India. Palaeontographica, 152B: 149-190.

Satsangi PP, Chandra A & Singh G 1968. Sporological analysis of the Panchet Series and its bearing on the Permian-Triassic transition. Curr. Sci., 37 (4): 116-117.

Srivastava RN & Pawade MB 1962. Palynological study of Bore hole R.O.I. (B) Ondal, West Bengal. Rec. geol. Surv. India, 91 (2): 369-384.

Tiwari RS 1977. Palynostratigraphy of Permo-Triassic transition in India. Proc. IV int. palynol. Conf., Lucknow (1976-77), Abst.

Venkatachala BS & Rawat MS 1974. Early Triassic palynoflora from the subsurface of Purnea, Bihar, india. Abst. 1st Indian Palynol. Congr., Chandigarh. 1974: 18.