Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China

Kai Ye, Jing Bo Liu, Bo Lin Cong, Da Nian Ye, Ping Xu, Soichi Omori, Shigenori Maruyama

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Titanites previously reported from high-pressure rocks commonly contain high Al and F contents. This finding has led previous workers to conclude that high Al and F in titanite can expand its stability field to high-pressure and ultrahigh-pressure (UHP) conditions. In this study, a coesite inclusion was identified in titanite of aragonite- and jadeite-bearing gneiss from the Dabieshan UHP metamorphic terrane of eastern China. We also found UHP titanite in carbonate-bearing garnet clinopyroxenite from the Sulu UHP terrane. Interestingly, both types of the UHP titanite mentioned above contain low Al and F contents. Therefore, our data indicate that the high-Al and F contents are not necessary criteria for stabilizing titanite to UHP conditions. It is inferred that the UHP titanite formed via the reaction TiO2 + CaCO3 + SiO2 = CaTiSiO5 + CO2, and that the presence of the UHP assemblage aragonite + rutile + clinopyroxene + coesite in the host rock and a very low XCO2 value in the coexisting fluid are crucial conditions for the formation of these UHP titanites.

Original languageEnglish
Pages (from-to)875-881
Number of pages7
JournalAmerican Mineralogist
Volume87
Issue number7
Publication statusPublished - 2002
Externally publishedYes

Fingerprint

Bearings (structural)
Carbonates
low pressure
terrane
China
carbonates
Rocks
titanite
rocks
carbonate
rock
coesite
aragonite
Calcium Carbonate
Rock pressure
jadeite
gneiss
rutile
Garnets
garnets

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Ye, K., Liu, J. B., Cong, B. L., Ye, D. N., Xu, P., Omori, S., & Maruyama, S. (2002). Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China. American Mineralogist, 87(7), 875-881.

Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China. / Ye, Kai; Liu, Jing Bo; Cong, Bo Lin; Ye, Da Nian; Xu, Ping; Omori, Soichi; Maruyama, Shigenori.

In: American Mineralogist, Vol. 87, No. 7, 2002, p. 875-881.

Research output: Contribution to journalArticle

Ye, K, Liu, JB, Cong, BL, Ye, DN, Xu, P, Omori, S & Maruyama, S 2002, 'Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China', American Mineralogist, vol. 87, no. 7, pp. 875-881.
Ye, Kai ; Liu, Jing Bo ; Cong, Bo Lin ; Ye, Da Nian ; Xu, Ping ; Omori, Soichi ; Maruyama, Shigenori. / Ultrahigh-pressure (UHP) low-Al titanites from carbonate-bearing rocks in Dabieshan-Sulu UHP terrane, eastern China. In: American Mineralogist. 2002 ; Vol. 87, No. 7. pp. 875-881.
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