DOI: 10.1016/j.palaeo.2016.12.027
论文题名: The shoreline distribution and degradation of tilapia carcasses, Salton Sea, California: Taphonomic implications
作者: Heness E.A. ; Simpson E.L. ; Bogner E.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 468 起始页码: 276
结束页码: 286
语种: 英语
英文关键词: Lacustrine shoreline
; Salton Sea
; Taphonomy
; Vertebrate taphonomy
英文摘要: The Salton Sea is a hypersaline, closed lake system in southern California, USA. Episodic fish kills led to bloating and floating fish bodies that were driven onto the shoreline by wind shear. The documented taphonomic destruction of the stranded fish carcasses includes the distribution of the fish parts after desiccation and disarticulation mainly by wave-induced transport with possible minor component of wind transport on the upper shoreface. Carcass decay is divided into five taphonomic categories 1 through 5. Category 1 represents whole pliable fish, recently washed onto the shoreline while category 5 incorporates longer-term destruction into ultimately single, isolated skeletal elements. High water, strand line deposits are delineated by the presence of categories 3 through 5 mixtures. The general trend, in 2012 was observed to be considerable bone disarticulation away from the shoreline because categories 1 and 2 were present in the swash zone; the influx of fresh fish carcasses recharged the shoreline. During 2013, the absence of new 1 and 2 categories arriving to the shoreline enhanced wave action to further break down categories 3 and 4 ultimately into category 5. In addition, isolated bone elements segregate according to density differences, typically on low-gradient beaches. Wave and wave-induced current action coupled with beach topography controls distribution of the various fish bones. As an actualistic model, the Salton Sea implies that shore-parallel complete to partial fish carcass concentrations are more shoreward and isolated skeletal elements more distal. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67981
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Department Geological Sciences, University of Texas – El Paso, 500 West University Avenue, El Paso, TX, United States; Department of Physical Sciences, Kutztown University, Kutztown, PA, United States
Recommended Citation:
Heness E.A.,Simpson E.L.,Bogner E.. The shoreline distribution and degradation of tilapia carcasses, Salton Sea, California: Taphonomic implications[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,468