Compositional characteristics of garnets and pyroxenes in contact-metasomatic skarn deposits and their relationship with metallization

Zhao Bin, Mark D Barton

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The compositions of more than 300 granets and pyroxenes from 14 contact-metasomatic calcic skarn deposits and calcic-magnesia skarn skarn deposits in China have been examined using electron microprobe technique. The compositions of garnets and pyroxenes from a wide variety of ore types represent ten major classes of calcic skarn deposits (Fe, Fe-Cu, Pb-Zn,W, Sn, Sn-Mo-Bi-W, W-Bi-Cu-Mo, Cu-Zn and W-Zn-Cu) and three major classes of calcic-magnesia skarn deposits (Fe-Cu, Mo, Pb-Zn). Garnets and pyroxenes show a wide range of variation in composition, but the majority of garnets are grossular-andradite solid solutions containing less than 15 mol% (spessartine + almandine + pyrope), whereas most pyroxenes are diopside-hedenbergite solid solutions containing less than 5 mol% johannesenile. Some pyroxenes from a Pb-Zn calcic-magnesia skarn deposit display an increase in Mn content. Only Sn-W calcic skarn deposits and Pb-Zn calcic-magnesia skarn deposits contain garnets with more than 15 mol% (spessartine + almandine + pyrope). Some relationships have been established between the compositions of garnets and pyroxenes and the metallization types of economically important metals in skarn deposits.

Original languageEnglish (US)
Pages (from-to)329-335
Number of pages7
JournalChinese Journal of Geochemistry
Volume7
Issue number4
DOIs
StatePublished - Sep 1988
Externally publishedYes

Fingerprint

skarn
Garnets
Metallizing
garnet
Deposits
Magnesium Oxide
spessartine
almandine
pyrope
Chemical analysis
solid solution
Solid solutions
hedenbergite
andradite
grossular
diopside
Ores
electron probe analysis
Metals
Electrons

ASJC Scopus subject areas

  • Geology

Cite this

@article{734bcfe118474a589eba1df4b4ad4316,
title = "Compositional characteristics of garnets and pyroxenes in contact-metasomatic skarn deposits and their relationship with metallization",
abstract = "The compositions of more than 300 granets and pyroxenes from 14 contact-metasomatic calcic skarn deposits and calcic-magnesia skarn skarn deposits in China have been examined using electron microprobe technique. The compositions of garnets and pyroxenes from a wide variety of ore types represent ten major classes of calcic skarn deposits (Fe, Fe-Cu, Pb-Zn,W, Sn, Sn-Mo-Bi-W, W-Bi-Cu-Mo, Cu-Zn and W-Zn-Cu) and three major classes of calcic-magnesia skarn deposits (Fe-Cu, Mo, Pb-Zn). Garnets and pyroxenes show a wide range of variation in composition, but the majority of garnets are grossular-andradite solid solutions containing less than 15 mol{\%} (spessartine + almandine + pyrope), whereas most pyroxenes are diopside-hedenbergite solid solutions containing less than 5 mol{\%} johannesenile. Some pyroxenes from a Pb-Zn calcic-magnesia skarn deposit display an increase in Mn content. Only Sn-W calcic skarn deposits and Pb-Zn calcic-magnesia skarn deposits contain garnets with more than 15 mol{\%} (spessartine + almandine + pyrope). Some relationships have been established between the compositions of garnets and pyroxenes and the metallization types of economically important metals in skarn deposits.",
author = "Zhao Bin and Barton, {Mark D}",
year = "1988",
month = "9",
doi = "10.1007/BF02842337",
language = "English (US)",
volume = "7",
pages = "329--335",
journal = "Acta Geochimica",
issn = "2096-0956",
publisher = "Springer International Publishing AG",
number = "4",

}

TY - JOUR

T1 - Compositional characteristics of garnets and pyroxenes in contact-metasomatic skarn deposits and their relationship with metallization

AU - Bin, Zhao

AU - Barton, Mark D

PY - 1988/9

Y1 - 1988/9

N2 - The compositions of more than 300 granets and pyroxenes from 14 contact-metasomatic calcic skarn deposits and calcic-magnesia skarn skarn deposits in China have been examined using electron microprobe technique. The compositions of garnets and pyroxenes from a wide variety of ore types represent ten major classes of calcic skarn deposits (Fe, Fe-Cu, Pb-Zn,W, Sn, Sn-Mo-Bi-W, W-Bi-Cu-Mo, Cu-Zn and W-Zn-Cu) and three major classes of calcic-magnesia skarn deposits (Fe-Cu, Mo, Pb-Zn). Garnets and pyroxenes show a wide range of variation in composition, but the majority of garnets are grossular-andradite solid solutions containing less than 15 mol% (spessartine + almandine + pyrope), whereas most pyroxenes are diopside-hedenbergite solid solutions containing less than 5 mol% johannesenile. Some pyroxenes from a Pb-Zn calcic-magnesia skarn deposit display an increase in Mn content. Only Sn-W calcic skarn deposits and Pb-Zn calcic-magnesia skarn deposits contain garnets with more than 15 mol% (spessartine + almandine + pyrope). Some relationships have been established between the compositions of garnets and pyroxenes and the metallization types of economically important metals in skarn deposits.

AB - The compositions of more than 300 granets and pyroxenes from 14 contact-metasomatic calcic skarn deposits and calcic-magnesia skarn skarn deposits in China have been examined using electron microprobe technique. The compositions of garnets and pyroxenes from a wide variety of ore types represent ten major classes of calcic skarn deposits (Fe, Fe-Cu, Pb-Zn,W, Sn, Sn-Mo-Bi-W, W-Bi-Cu-Mo, Cu-Zn and W-Zn-Cu) and three major classes of calcic-magnesia skarn deposits (Fe-Cu, Mo, Pb-Zn). Garnets and pyroxenes show a wide range of variation in composition, but the majority of garnets are grossular-andradite solid solutions containing less than 15 mol% (spessartine + almandine + pyrope), whereas most pyroxenes are diopside-hedenbergite solid solutions containing less than 5 mol% johannesenile. Some pyroxenes from a Pb-Zn calcic-magnesia skarn deposit display an increase in Mn content. Only Sn-W calcic skarn deposits and Pb-Zn calcic-magnesia skarn deposits contain garnets with more than 15 mol% (spessartine + almandine + pyrope). Some relationships have been established between the compositions of garnets and pyroxenes and the metallization types of economically important metals in skarn deposits.

UR - http://www.scopus.com/inward/record.url?scp=51649150847&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51649150847&partnerID=8YFLogxK

U2 - 10.1007/BF02842337

DO - 10.1007/BF02842337

M3 - Article

AN - SCOPUS:51649150847

VL - 7

SP - 329

EP - 335

JO - Acta Geochimica

JF - Acta Geochimica

SN - 2096-0956

IS - 4

ER -