Advances in mollusc sclerochronology and sclerochemistry: tools for understanding climate and environment
Advances in mollusc sclerochronology and sclerochemistry: tools for understanding climate and environment
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软体动物硬化年代学和硬化化学的进展：了解气候和环境的工具
DOI：
10.1007/s00367-008-0108-4
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发表时间：
2008
影响因子：
2.1
通讯作者：
D. Gillikin
中科院分区：
文献类型：
--
作者：
D. Gröcke;D. Gillikin
这期《地质-海洋通讯》特刊汇编了关于海洋、河口和淡水软体动物贝壳作为环境和气候条件记录者的论文。考虑到以往许多研究将地球化学调查与硬化年代学调查区分开来，我们建议在进行地球化学调查时使用子学科术语“硬化化学”。这期杂志从两篇综述文章开始，讨论了生理学或生命效应对硬化年代学和硬化化学的重要性。本文介绍了几个现代双壳类和腹足类样品的硬化化学标定研究（包括δ 18 O、Mg/Ca、Sr/Ca和Ba/Ca），说明了使用这些指标的有用性和困难。还提供了关于软体动物贝壳化石的研究，其中一项研究利用上新世扇贝贝壳来了解过去的海洋环流，另一项研究则涉及成岩作用问题。最后，对整个外壳的晶棱镜宽度进行了硬化年代学研究。这份特刊表明，软体动物贝壳中含有的许多元素和同位素替代物是复杂的。尽管有这些复杂性，环境和气候条件可以提取用于古气候和古环境研究。
This Special Issue of Geo-Marine Letters compiles papers on marine, estuarine and freshwater mollusc shells as recorders of environmental and climatic conditions. Considering that many past studies have differentiated geochemical investigations from sclerochronological investigations, we propose that the sub-discipline term “sclerochemistry” be used when geochemical investigations are undertaken. This issue starts with two review papers that discuss the importance of physiology or vital effects on both sclerochronology and sclerochemistry. Several sclerochemical calibration studies on modern specimens of both bivalves and gastropods are presented (including δ18O, Mg/Ca, Sr/Ca and Ba/Ca), which illustrate the usefulness and difficulties associated with using these proxies. Studies on fossil mollusc shells are also provided, with one study that uses Pliocene scallop shells to understand past ocean circulation and another that addresses the problem of diagenesis. Finally, a sclerochronological study of crystal prism width across the shell is presented. This Special Issue demonstrates that many elemental and isotopic proxies contained in mollusc shells are complex. In spite of these complexities, environmental and climatic conditions can be extracted for use in palaeoclimatic and palaeoenvironmental research.