Please use this identifier to cite or link to this item:
|Title:||Conodont biostratigraphic control on transitional marine to non-marine Permian-Triassic boundary sequences in Yunnan-Guizhou, China||Contributor(s):||Metcalfe, Ian (author); Nicoll, RS (author)||Publication Date:||2007||DOI:||10.1016/j.palaeo.2006.11.034||Handle Link:||https://hdl.handle.net/1959.11/1480||Abstract:||The recovery of conodonts associated with ash beds and magnetostratigraphy in the key Zhongzhai Section, near Langdai, Liuzhi, Guizhou Province, provides precise and definitive control on the position of the Permian–Triassic boundary in the transition from marine to non-marine facies of western Guizhou and eastern Yunnan Provinces of southwestern China. In the Zhongzhai Section the boundary interval consists of a lower limestone, 20 cm thick, that contains fragments of 'Hindeodus' sp. and 'Clarkina' sp. This is overlain by a 50 cm thick black shale bed containing an abundant brachiopod fauna, but only a single conodont fragment. This bed is in turn overlain by a 23 cm thick limestone that contains 'Clarkina meishanensis', 'Merrillina ultima', 'Hindeodus changxingensis', 'H. praeparvus' and 'H. eurypyge'. Directly over this limestone is a 5 cm thick ash bed followed by a 10 cm thick black shale, which is overlain by a second, upper, ash bed that is 3 cm thick. On top of the upper ash bed is a 20 cm thick silty limestone containing an abundant dwarf conodont fauna, dominated by 'Hindeodus', and containing 'H. parvus' but also including 'Clarkina tulongensis'. The Permian–Triassic boundary is placed at the level of the black shale located between the two ash beds.||Publication Type:||Journal Article||Source of Publication:||Palaeogeography, Palaeoclimatology, Palaeoecology, 252(1-2), p. 56-65||Publisher:||Elsevier BV||Place of Publication:||Amsterdam, Netherlands||ISSN:||0031-0182
|Field of Research (FOR):||040311 Stratigraphy (incl Biostratigraphy and Sequence Stratigraphy)||Peer Reviewed:||Yes||HERDC Category Description:||C1 Refereed Article in a Scholarly Journal||Statistics to Oct 2018:||Visitors: 162
|Appears in Collections:||Journal Article|
Files in This Item:
checked on Nov 26, 2018
checked on Mar 4, 2019
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.