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The western boundary of the
Rajmahal Traps is faulted and down-thrown towards the east. The eastern boundary of this trap has a North-South trending, fault-controlled basement. This basement connects the Purnea basin of the Ganga valley with the Bengal basin. These faulted contacts, along with the
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The original lava flow covered an area of nearly 4,100 km (1,600 sq mi). Below the Bengal basin the flows cover 200,000 km (77,000 sq mi).
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2–5° towards the north-east. Individual layers vary in thickness from less than one metre (3 ft 3 in) to more than 70 metres (230 ft).
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is the type area of this province. Multiple layers of solidified lava made the 608-metre-thick (1,995 ft) Rajmahal Traps which are
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at the mouth of the Bengal basin. The traps evolved along the then eastern continental margin of India, following rifting of
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275:"Magmatic underplating beneath the Rajmahal Traps: Gravity signature and derived 3-D configuration"
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154:. Over the epochs, the upper part of the lava deformed in a cold, brittle fashion and formed
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78:. The similarity between the geochemical data of Rajmahal volcanos and lavas of the
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These volcanic rocks were formed from the eruptions over the
86:, the Indian subcontinent was over this hot spot during the
273:
Singh, A. P.; Niraj Kumar; Bijendra Singh (December 2004).
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260:
Cambridge, Cambridge
University Press, 1999; p. 95.
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233:. Macmillan Publishers India Ltd. p. 323.
279:Proc. Indian Acad. Sci. (Earth Planet. Sci.)
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266:
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231:The Making of India, Geodynamic Evolution
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101:The Rajmahal volcanics are predominantly
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18:
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34:is a volcanic igneous province in
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361:
16:Indian volcanic igneous province
170:contain an assemblage of Lower
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1:
213:
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82:confirms this. According to
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196:
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177:. The assemblage includes
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65:
38:, covering the parts of
229:Valdiya, K. S. (2010).
345:Geography of Jharkhand
191:Brachyphyllum rhombium
187:Taeniopteris spatulata
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183:Dictyozamites indicus
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335:Cretaceous volcanism
137:Structural evolution
105:, quartz tholeiite,
291:2004InEPS.113..759S
254:Courtillot, Vincent
179:Cladophlebis indica
350:Volcanism of India
300:10.1007/BF02704035
168:Intertrappean Beds
115:Intertrappean Beds
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340:Extinction events
142:Damodar Gondwana
103:tholeiitic basalt
80:Kerguelen Plateau
72:Kerguelen hotspot
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240:978-0230-32833-4
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119:sedimentary rock
117:are composed of
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148:triple junction
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84:plate tectonics
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109:tholeiite and
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52:Rajmahal Hills
32:Rajmahal Traps
25:Rajmahal Hills
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175:plant fossils
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111:alkali basalt
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74:in the early
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36:Eastern India
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312:. Retrieved
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203:Deccan Traps
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158:structures.
152:Gondwanaland
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44:West Bengal
329:Categories
285:(4): 759.
214:References
172:Cretaceous
88:Cretaceous
76:Cretaceous
309:129952630
146:, form a
127:claystone
123:siltstone
97:Lithology
56:Jharkhand
48:Meghalaya
40:Jharkhand
208:Rajmahal
197:See also
121:such as
90:Period.
23:View of
314:8 March
287:Bibcode
162:Fossils
107:olivine
66:Genesis
60:dipping
307:
237:
189:, and
156:graben
144:graben
113:. The
50:. The
305:S2CID
131:shale
316:2017
235:ISBN
166:The
129:and
46:and
30:The
295:doi
283:113
54:of
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