Ni in chrome pyrope garnets: a new geothermometer

W. L. Griffin; D. R. Cousens; C. G. Ryan; S. H. Sie; G. F. Suter

doi:10.1007/BF00378505

Ni in chrome pyrope garnets: a new geothermometer

W. L. Griffin^*, D. R. Cousens, C. G. Ryan, S. H. Sie, G. F. Suter

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

139 Citations (Scopus)

Abstract

Proton microprobe analyses of the minerals in garnet-peridotite xenoliths from kimberlites show that the partitioning of Ni between chrome pyrope garnet and olivine is strongly temperature(T)-dependent. The range of Ni contents in olivines is small relative to that in the analyzed garnets; a geothermometer therefore can be derived, based only on the Ni content of garnet. This allows estimation of T for single Cr-pyrope grains, such as the inclusions in diamonds, if these can be assumed to have equilibrated with olivine.

Original language	English
Pages (from-to)	199-202
Number of pages	4
Journal	Contributions to Mineralogy and Petrology
Volume	103
Issue number	2
DOIs	https://doi.org/10.1007/BF00378505
Publication status	Published - Oct 1989
Externally published	Yes

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title = "Ni in chrome pyrope garnets: a new geothermometer",

abstract = "Proton microprobe analyses of the minerals in garnet-peridotite xenoliths from kimberlites show that the partitioning of Ni between chrome pyrope garnet and olivine is strongly temperature(T)-dependent. The range of Ni contents in olivines is small relative to that in the analyzed garnets; a geothermometer therefore can be derived, based only on the Ni content of garnet. This allows estimation of T for single Cr-pyrope grains, such as the inclusions in diamonds, if these can be assumed to have equilibrated with olivine.",

author = "Griffin, {W. L.} and Cousens, {D. R.} and Ryan, {C. G.} and Sie, {S. H.} and Suter, {G. F.}",

year = "1989",

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T2 - a new geothermometer

AU - Griffin, W. L.

AU - Cousens, D. R.

AU - Ryan, C. G.

AU - Sie, S. H.

AU - Suter, G. F.

PY - 1989/10

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N2 - Proton microprobe analyses of the minerals in garnet-peridotite xenoliths from kimberlites show that the partitioning of Ni between chrome pyrope garnet and olivine is strongly temperature(T)-dependent. The range of Ni contents in olivines is small relative to that in the analyzed garnets; a geothermometer therefore can be derived, based only on the Ni content of garnet. This allows estimation of T for single Cr-pyrope grains, such as the inclusions in diamonds, if these can be assumed to have equilibrated with olivine.

AB - Proton microprobe analyses of the minerals in garnet-peridotite xenoliths from kimberlites show that the partitioning of Ni between chrome pyrope garnet and olivine is strongly temperature(T)-dependent. The range of Ni contents in olivines is small relative to that in the analyzed garnets; a geothermometer therefore can be derived, based only on the Ni content of garnet. This allows estimation of T for single Cr-pyrope grains, such as the inclusions in diamonds, if these can be assumed to have equilibrated with olivine.

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IS - 2

ER -

Ni in chrome pyrope garnets: a new geothermometer

Abstract

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