收稿日期: 1993-08-19
修回日期: 1993-12-03
网络出版日期: 1994-11-01
基金资助
国家自然科学基金项目“皖苏地区岩石圈的热状态和化学结构”（编号：49173167）资助.
THE FIRST GEOBAROMETER FOR SPINEL LHERZOLITE
Received date: 1993-08-19
Revised date: 1993-12-03
Online published: 1994-11-01
支霞臣,陈道公 . 适用于尖晶石相橄榄岩的第一个定量地质压力计[J]. 地球科学进展, 1994 , 9(6) : 88 -91 . DOI: 10.11867/j.issn.1001-8166.1994.06.0088
The historic development of the first geobarometer for spinel lherzolite based on the distribution of calcium between existing olivine and clinopyroxene is reported here.
Kohler and Brey(1990) suggested the geobarometer as follows:
P(108Pa)=(−TlnDCa−11982+361T)/56.2 for T≥ (1275.25+2.827P) (K),
P(108Pa)=( −TlnDCa−5792−1.25T)/42.5 for T≤(1275.25+2.827P) (K).
Based on their calibrated experiments for calcium exchange between olivine and clinopyroxene from wide temperature-pressure range.
Key words： Ca distribution; Geobarometer; Spinel lherzolite.
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