Hongan (Xinxian) block of the Dabie-Sulu UHP metamorphic belt.
Coesite-bearing medium-temperature eclogites, occurring as lenticular bodies or as 4-8 m thick layers within migmatized gneiss of the Dabie group.
Ref.:
- Ruyuan Zhang and Liou, J.G. (1994): Coesite-bearing eclogite in Henan Province, central China: detailed petrography, glaucophane stability and PT-path. European Journal of Mineralogy 6(2), 217-233.
- Cui, W., and Wang, X. (1995): Eclogites of southern Henan and northern Hubei Provinces, central China. Island Arc 4(4), 347-361.
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Map Reference: 31°31'54"N , 114°57'11"E
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