Trace Fossils and Microbial Mat- Induced Sedimentary Structures from the Girbhakar Sandstone of Marwar Supergroup, Bhopalgarh Area, Jodhpur, Rajasthan, India
Received Date: Aug 18, 2012 / Accepted Date: Aug 20, 2012 / Published Date: Aug 22, 2012
Well-preserved trace fossils (Thalassinoides isp, Planolites isp. and Palaeophycus isp) and Microbial mat -induced sedimentary structures are reported from Girbhakar Sandstone of Marwar Supergroup, the upper sequence of Jodhpur Group. The trace fossils are preserved in fine grained sandstone and ferruginous sandstone, where as mat -induced sedimentary structures are, occur in patches on the top of fine grained sandstone bedding surface. The area under present investigation lies around Bhopalgarh, which is 70 km northeast of Jodhpur. All these ichnogenera shows marine and shallow marine to sub-tidal depositional environment. No age can be assigned on the basis of these trace fossils as they range from Cambrian to Recent but the presence of microbial mat-induced sedimentary structures are Ediacaran affinity and can be assigned Ediacaran age to Girbhakar Sandstone of Bhopalgarh area included in Girbhakar Sandstone Formation.
Keywords: Trace fossils; Microbial mat structures; Girbhakar sandstone; Marwar supergroup; Bhopalgarh; Jodhpur and Rajasthan
Citation: Parihar VS, Gaur V, Nama SL (2012) Trace Fossils and Microbial Mat- Induced Sedimentary Structures from the Girbhakar Sandstone of Marwar Supergroup, Bhopalgarh Area, Jodhpur, Rajasthan, India. J Earth Sci Climat Change S12: 002. Doi: 10.4172/2157-7617.S12-002
Copyright: ©2012 Parihar VS, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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