Lower Devonian tempestites in western Yangtze, South China: insight from Zoophycos ichnofabrics
Version of Record online: 17 APR 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Volume 49, Issue 2, pages 177–187, March/April 2014
How to Cite
Zhang, L.-J. (2014), Lower Devonian tempestites in western Yangtze, South China: insight from Zoophycos ichnofabrics. Geol. J., 49: 177–187. doi: 10.1002/gj.2507
- Issue online: 5 MAR 2014
- Version of Record online: 17 APR 2013
- Manuscript Accepted: 8 MAR 2013
- Manuscript Received: 19 SEP 2012
- Natural Science Foundation of China. Grant Numbers: 41072252, 41290260, 41272118
- 111 and 973 projects. Grant Number: B08030 and 2011CB808800
- South China
A Lower Devonian (Emsian) tempestite in the western Yangtze plate, China, was studied based on ichnological and stratigraphical features. The results indicated that the local tempestite can be grouped into clastic constituent types, which include bottom erosion structures, graded beds, swaley cross-stratification (SCS), parallel lamination, bioturbation and the new composition Zoophycos ichnofabrics. Five storm sequences and three Zoophycos ichnofabrics (Zoophycos–Chondrites ichnofabric, Zoophycos–Chondrites–Thalassinoides ichnofabric and Zoophycos–Thalassinoides–Palaeophycus ichnofabric) were discerned. It is demonstrated that the Zoophycos-producers from the complex types of Zoophycos in storm sequences were opportunistic organisms (r-strategists). This study reveals storm-generated physical and biogenic structures and textures and provides a good ichnological method to identify storm deposits. Copyright © 2013 John Wiley & Sons, Ltd.