OXYGEN ISOTOPE VARIATIONS IN PHOSPHATE OF BIOGENIC APATITES .1. FISH BONE APATITE - RECHECKING THE RULES OF THE GAME
OXYGEN ISOTOPE VARIATIONS IN PHOSPHATE OF BIOGENIC APATITES .1. FISH BONE APATITE - RECHECKING THE RULES OF THE GAME
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DOI：
10.1016/0012-821x(83)90100-0
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发表时间：
1983-01-01
影响因子：
5.3
通讯作者：
NAVON, O
中科院分区：
文献类型：
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作者：
KOLODNY, Y;LUZ, B;NAVON, O
氧在磷酸盐同位素古测温中的主要优点是，它是一种在骨骼(和牙齿)建筑生物活着时以极高的灵敏度记录温度的系统，并且在死亡后记录几乎完好地保存下来。对7个不同温度(3~23℃)、不同δ18O(−16~+3)的水体中的鱼类进行了分析。所分析的PO4的δ~(18)O值在6~25之间。该系统通过了以下测试：(A)从贝加尔湖鱼类序列的同位素分析得出的温度与在热分层湖中测得的温度非常一致；(B)鱼骨磷的同位素组成不受喂给鱼的磷酸盐的同位素组成的影响，而只受温度和水组成的影响。对鱼类化石的同位素分析结合哺乳动物骨骼的分析应该是破译大陆古气候的有用工具。
The major advantage of the oxygen in phosphate isotope paleothermometry is that it is a system which records temperatures with great sensitivity while bone (and teeth) building organisms are alive, and the record is nearly perfectly preserved after death. Fish from seven water bodies of different temperatures (3–23°C) and different δ18O (values −16 to +3) of the water were analysed. The δ18O values of the analysed PO4vary from 6 to 25. The system passed the following tests: (a) the temperatures deduced from isotopic analyses of the sequence of fish from Lake Baikal are in good agreement with the temperatures measured in the thermally stratified lake; (b) the isotopic composition of fish bone phosphate is not influenced by the isotopic composition of the phosphate which is fed to the fish, but only by temperature and water composition.Isotopic analysis of fossil fish in combination with analysis of mammal bones should be a useful tool in deciphering continental paleoclimates.