首页|期刊导航|中国地球化学学报(英文版)|The Xiaojiao high-grade eclogite-type rutile deposit in Jiangsu, China: Geology,geochemistry and metallogenesis
中国地球化学学报(英文版)2006,Vol.25Issue(1):33-42,10.
The Xiaojiao high-grade eclogite-type rutile deposit in Jiangsu, China: Geology,geochemistry and metallogenesis
The Xiaojiao high-grade eclogite-type rutile deposit in Jiangsu, China: Geology,geochemistry and metallogenesis
摘要
Abstract
The Xiaojiao rutile deposit with stratiform, banded and lens-shaped rutile-bearing eclogite in the Sulu ultra-high pressure metamorphic zone represents the largest and richest primary rutile mineralization in the zone. Four kinds of rutile can be recognized. They are: ( 1 ) inclusions in garnet and omphacite; (2) intergranular infilling between garnet and omphacite; (3) altered remnant; and (4) hydrothermal infilling in veinlets. Electron microprobe data show that sodic metasomatism probably from metamorphic fluid could play an important role in rutile mineralization during high and ultra-high pressure metamorphism. The present paper concludes that according to geochemical characteristics, the eclogite originated from mafic and ultramafic rocks in the upper mantle and crust-mantle boundary and the Xiaojiao eclogite-type rutile deposit is genetically closely related to ultra-high pressure metamorphism.关键词
rutile deposit/eclogite/ultra-pressure metamorphic belt/genesis of depositKey words
rutile deposit/eclogite/ultra-pressure metamorphic belt/genesis of deposit分类
天文与地球科学引用本文复制引用
..The Xiaojiao high-grade eclogite-type rutile deposit in Jiangsu, China: Geology,geochemistry and metallogenesis[J].中国地球化学学报(英文版),2006,25(1):33-42,10.基金项目
This study was granted by the National Geological Investigation Program (200010300104). (200010300104)