Deccan Traps

Deccan Traps
Deccan Traps is located in India
Deccan Traps
Deccan Traps
Location in India

The Western Ghats at Matheran in Maharashtra
Oblique satellite view of the Deccan Traps
Map of the Deccan Traps[1]

The Deccan Traps is a large igneous province of west-central India (17–24°N, 73–74°E). It is one of the largest volcanic features on Earth, taking the form of a large shield volcano.[2] It consists of numerous layers of solidified flood basalt that together are more than about 2,000 metres (6,600 ft) thick, cover an area of about 500,000 square kilometres (200,000 sq mi),[3] and have a volume of about 1,000,000 cubic kilometres (200,000 cu mi).[4] Originally, the Deccan Traps may have covered about 1,500,000 square kilometres (600,000 sq mi),[5] with a correspondingly larger original volume. This volume overlies the Archean age Indian Shield, which is likely the lithology the province passed through during eruption. The province is commonly divided into four subprovinces: the main Deccan, the Malwa Plateau, the Mandla Lobe, and the Saurashtran Plateau.[6]

  1. ^ Götze, Jens; Hofmann, Beda; Machałowski, Tomasz; Tsurkan, Mikhail V.; Jesionowski, Teofil; Ehrlich, Hermann; Kleeberg, Reinhard; Ottens, Berthold (16 June 2020). "Biosignatures in Subsurface Filamentous Fabrics (SFF) from the Deccan Volcanic Province, India". Minerals. 10 (6): 540. Bibcode:2020Mine...10..540G. doi:10.3390/min10060540.
  2. ^ Sen, Gautam (1 December 2001). "Generation of Deccan Trap magmas". Journal of Earth System Science. 110 (4): 409–431. Bibcode:2001InEPS.110..409S. doi:10.1007/BF02702904. ISSN 0973-774X. S2CID 52107268.
  3. ^ Singh, R. N.; Gupta, K. R. (1994). "Workshop yields new insight into volcanism at Deccan Traps, India". Eos. 75 (31): 356. Bibcode:1994EOSTr..75..356S. doi:10.1029/94EO01005.
  4. ^ Dessert, Céline; Dupréa, Bernard; Françoisa, Louis M.; Schotta, Jacques; Gaillardet, Jérôme; Chakrapani, Govind; Bajpai, Sujit (2001). "Erosion of Deccan Traps determined by river geochemistry: impact on the global climate and the 87Sr/86Sr ratio of seawater". Earth and Planetary Science Letters. 188 (3–4): 459–474. Bibcode:2001E&PSL.188..459D. doi:10.1016/S0012-821X(01)00317-X.
  5. ^ "What really killed the dinosaurs?" Jennifer Chu, MIT News Office, 11 December 2014
  6. ^ Macdougall, J. D. (1988). Continental Flood Basalts. Dordrecht: Springer Netherlands. ISBN 978-94-015-7805-9. OCLC 851375252.