Reworked Permian palynofossils from Bhuban Formation (Early Miocene) of Tripura, India
DOI:
https://doi.org/10.54991/jop.2016.306Keywords:
Permian palynofossils, Miocene sediments, Reworking, Tripura, IndiaAbstract
Palynological investigations were carried out from the sediments of Bhuban Formation, Amarpur area, located on the southern part of Tripura. The assemblage consists of a large number of marker pollen/spores of Miocene age, comprising pteridophytic spores, angiosperm and gymnosperm pollen and fungal remains. Besides these, an abundance of reworked Permian palynomorphs of Gondwanan affinity have been recorded which include Acanthotriletes, Jayantisporites, Barakarites, Parasaccites, Plicatipollenites, Densipollenites, Scheuringipollenites, Faunipollenites, Alisporites, Primuspollenites, Klausipollenites, etc. The recovered palynoassemblage is dominated by Parasaccites and subdominated by Plicatipollenites. From bottom to top, the monosaccates appear to decline and the striate and non–striate disaccates become dominant. The Gondwana sediments were eroded, transported and redeposited within the Miocene sediments in a shallow sea adjacent to a densely vegetated land mass. The implications of the reworked Permian palynofossils in the Miocene sediments of Tripura has been discussed.
Downloads
Metrics
References
Banerjee B, Misra CM & Koshal VN 1973. Palynology of the subcrops of Upper Assam. Palaeobotanist 20: 1–16.
Datta AK & Banerjee D 1979. A note on the palaeographic significance of occurrence of recycled lower Gondwana palynoflora in Mesozoic and Cainozoic sediments of Assam–Arakan province. Current Science 48: 775–776.
De AK & Boral MC 1982. A note on the Gondwana sediments of Singrimari (Hallidaygunj), Meghalaya. Records of the Geological Survey of India 112: 7–11.
Dutta SK 1979. Recycle Permian palynomorphs in Upper Cretaceous rocks of Jaintia Hills, Meghalaya. Geophytology 8: 250–251.
Dutta SK 1980. Palynostratigraphy of the sedimentary formations of Arunachal Pradesh–2, Palynology of the Siwalik equivalent rocks of Kameng District. Geophytology10: 5–13.
Dutta SK & Singh HP 1980. Palynostratigraphy of the sedimentary formations of Arunachal Pradesh–1, Palynology of the Siwalik rocks of the Lesser Himalayas, Kameng District. In: Bharadwaj DC et al. (Editors)–Proceedings of IV International Palynological Conference, Lucknow (1976–77): 617–626.
Evans P 1932. Explanatory notes to accompany a table showing the Tertiary succession in Assam. Transactions of the Mining, Geological and Metallurgical Institute of India 27: 156–260.
Fox CS 1935. General Report. Records of the Geological Survey of India 71: 1–2.
Geological Survey of India 1974. Geology and Mineral resources of the states of India, Part IV. Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland & Tripura. Geological Survey of India, Miscellaneous Publication 30: 1–124.
Jain KP, Sah SCD & Singh RY 1975. Fossil dinoflagellates across Maaestrichtian–Danian boundary in Lower Assam, India. Palaeobotanist 22: 1–18.
Kar RK 1980. Permian miospores in the Miocene sediments of Kutch, Gujarat. Geophytology 10: 171–173.
Mandaokar BD & Ambwani K 2013. Palmostroboxylon deotamuraensis sp. nov., a new cocoid fossil palm penduncle from the Tipam Sandstone (Late Miocene) of Tripura, northeast India. Geophytology 43: 85–92.
Mandaokar BD & Saxena RK 2014. Lithomucorites tripuraensis sp. nov. (Mucorales) from the Bhuban Formation (Early Miocene) of Maharanicherra, Tripura, India. Geophytology 44: 25–30
Sah SCD & Singh RY 1977. Mesozoic–Cenozoic boundary in Assam. Journal of Geological Society of India 18: 445–455.
Saxena RK 1979. Reworked Cretaceous spores and pollen grains from the Matanomadh Formation (Palaeocene), Kutch, India. Palaeobotanist 26: 167–174.
Sharma KD, Talat CA, Juyal NP & Arunachalam S 1986. Occurrence of Gondwana palynofossils in Barpathar Well No. 1. of Upper Assam subsurface. Bulletin of Oil and Natural Gas Commission 23: 101–114.
Singh HP, Saxena RK & Rao MR 1990. Recycled Permian and Cretaceous palynofossils from the Barail and Surma groups (Oligocene–early Miocene) in Jaintia Hills (Meghalaya) and Cachar (Assam). Geophytology 20: 41–44.
Tiwari RS & Tripathi A 1992. Marker assemblage zones of spores and pollen species through Gondwana Palaeozoic and Mesozoic sequence in India. Palaeobotanist 40: 194–236.
Trivedi GK 1990. Reworked Gondwana palynofossils from the Kopili Formation (Late Eocene) of Jaintia Hills, Meghalaya. Geophytology 20: 66–68.
Valdiya KS 1984. Aspect of Tectonics: Focus on South–Central Asia. Tata McGraw Hill Publishing Company, New Delhi.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
