Received date: 1993-08-19
Revised date: 1993-12-03
Online published: 1994-11-01
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.
Zhi Xiachen,Chen Daogong . THE FIRST GEOBAROMETER FOR SPINEL LHERZOLITE[J]. Advances in Earth Science, 1994 , 9(6) : 88 -91 . DOI: 10.11867/j.issn.1001-8166.1994.06.0088
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