The role of the calcium carbonate calcium phosphate switch in the mineralization of soft-bodied fossils

被引：193

作者：

Briggs, DEG

Wilby, PR

机构：

[1] Department of Geology, University of Bristol, Wills Memorial Building, Bristol BS8 1RJ, Queen's Road

来源：

JOURNAL OF THE GEOLOGICAL SOCIETY | 1996年 / 153卷

关键词：

Solnhofen Limestone; fossils; preservation; apatite;

D O I：

10.1144/gsjgs.153.5.0665

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Authigenic minerals play an important role in the preservation of most soft-bodied fossils. The greatest detail is preserved in apatite (calcium phosphate) but its precipitation is usually inhibited by the high concentrations of HCO3- in aqueous settings. Nonetheless, investigations of soft-bodied biotas have revealed very early authigenic calcite crystal bundles in close association with phosphatized soft-tissues, This demonstrates that the geochemical controls on soft-tissue mineralization are dynamic and act on a very local scale, Direct comparisons with experimental results permit the conditions of fossilization to be inferred.

引用

页码：665 / 668

页数：4

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