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Early Cambrian Ichnofossils from the Mussoorie Syncline and revision of Trace Fossil Biozonation of the Lesser Himalaya, India
投稿时间:2013-02-01  修订日期:2013-10-29  点此下载全文
引用本文:Birendra P. Singh, Kapesa Lokho, Naval Kishore and Nancy Virmani.2014.Early Cambrian Ichnofossils from the Mussoorie Syncline and revision of Trace Fossil Biozonation of the Lesser Himalaya, India[J].ACTA GEOLOGICA SINICA(English edition),88(2):380~393
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作者单位E-mail
Birendra P. Singh, Kapesa Lokho, Naval Kishore and Nancy Virmani 1 Center of Advanced Study in Geology, Panjab University, Chandigarh-160014, India 2 Wadia Institute of Himalayan Geology, Dehradun-248001, India v_ruh@rediffmail.com 
基金项目:The University Grants Commission (UGC, New Delhi) is acknowledged for providing UGC-BSR Grant (F.20-1/2012(BSR) 20-8(12)2012(BSR) to BPS for research work.
中文摘要:A new locality bearing ichnofossils of the Cruziana Assemblage Zone-III from the Mussoorie syncline, Lesser Himalaya, is located in rocks of Member-B of the Dhaulagiri Formation, Tal Group, exposed along the Maldewta-Chhimoli fresh road cut section. The site yielded ichnofossils Bergaueria perata, Cochlichnus anguineus, ?Diplocraterion isp., Dimorphichnus obliquus, diplichnitiform Cruziana bonariensis, Diplichnites gouldi, Glockeria isp., Helminthopsis isp., Monomorphichnus lineatus, Phycodes palmatum, Palaeophycus striatus, Planolites beverleyensis, Planolites montanus, Treptichnus cf. T. pedum, scratch marks and an undetermined worm impression. An Early Cambrian age (Cambrian Series 2) is assigned to the ichnofossil-bearing strata based on the stratigraphic position between the Drepanuroides and Palaeoolenus trilobite zones. A revised Cambrian ichnofossil zonation is presented for the Tal Group of the Mussoorie syncline. Together with their occurrence on rippled surfaces, and the lateral displacement of some trackways (due to current action), a sub-aqueous shallow-marine depositional setting is proposed for the rocks of Member-B.
中文关键词:Ichnology, Cruziana Assemblage Zone, Cambrian Series 2, shallow-marine, northern India
 
Author NameAffiliationE-mail
  v_ruh@rediffmail.com 
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