PHOSPHATIZATION OF SOFT-TISSUE IN EXPERIMENTS AND FOSSILS
PHOSPHATIZATION OF SOFT-TISSUE IN EXPERIMENTS AND FOSSILS
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DOI：
10.1144/gsjgs.150.6.1035
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发表时间：
1993-11-01
影响因子：
2.7
通讯作者：
WILBY, PR
中科院分区：
文献类型：
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作者：
BRIGGS, DEG;KEAR, AJ;WILBY, PR
在实验室实验中磷酸化的软组织与化石磷酸化的软组织非常相似，表明涉及类似的过程。沉淀的磷酸钙颗粒的聚集体越小，形态保存的保真度越大。最高的保真度发生在细菌本身不复制的地方，即使沉淀是细菌诱导的。然而，虽然较大尸体的广泛磷酸化可能需要事先在沉积物中积累浓度，但少量软组织的磷酸化情况并非如此。在实验室中，软组织的矿化不是“瞬间”的，而是可能需要几周，甚至几个月，如果腐烂被抑制的话。缔合碳酸钙的沉淀由响应于衰变过程的pH变化控制。
Soft-tissues phosphatized in laboratory experiments closely resemble fossil phosphatized soft-tissues, indicating that similar processes were involved. The smaller the aggregations of calcium phosphate particles precipitated the greater the fidelity of morphological preservation. The highest fidelity occurs where the bacteria themselves are not replicated even though precipitation is bacterially induced. While extensive phosphatization of larger carcasses, however, may necessitate the build-up of concentrations in the sediment beforehand, this is not the case for phosphatization of small guantities of soft-tissue. Mineralization of soft-tissue in the laboratory is not 'instant' but mag take several weeks, or even months if decay is inhibited. The precipitation of associated calcium carbonate is controlled by shifts in pH in response to the decay process.