山东国土资源2023，Vol.39Issue(11)：20-31,12.DOI:10.12128/j.issn.1672-6979.2023.11.003
鲁西石马—胡家庄稀土矿成矿机制研究
Study on Metallogenic Mechanism of Shima—Hujiazhuang Rare Earth Deposit in Western Shandong Province
摘要
Abstract
A large number of carbonate bodies containing rare earth ores are distributed in Shima,Huji-azhuang,Badou and Xueye in Laiwu-Zibo area in western Shandong province.Most of rare earth deposits developed in these carbonate rocks are endogenetic light rare earth deposits.The total REE content of Shi-ma-Hujiazhuang carbonate rocks in western Shandong varies from 920×10-6 to 111742×10-6.Light rare earths are enriched especially.LREE/HREE=21.56～35.36,(La/Yb)N=55.81～207.82,and the heavy REE content is significantly different,(Gd/Yb)N=5.33～13.41.The fractionation of light rare earth is rel-atively weak,(La/Sm)N=4.36～6.27.It has a weak europium negative anomaly(8Eu=0.8～0.90).Theδ13CV-PDB of calcite ranges from-5.83‰ to-1.55‰,and δ18 OV-SMOW ranges from 9.47‰ to 16.81‰.Elec-tron microprobe analysis shows that there are a large number of altered minerals,such as vermiculite and chlorite in carbonate rocks in western Shandong.Its biotite belongs to magnesian biotite.Rare earth depos-its in Shima-Hujiazhuang area belong to magmatic hydrothermal deposits.It is the product of active con-tinental margin.关键词
稀土矿/碳酸岩/电子探针/同位素/石马/鲁西胡家庄Key words
Rare earth deposit/carbonate rock/electron probe/isotope/Shima/Hujiazhuang in western Shandong province分类
天文与地球科学引用本文复制引用
刘强,胡笑伟,尉鹏飞,杨斌,崔薛萍,耿科,张超,蔡娜,谢伟,牛志力..鲁西石马—胡家庄稀土矿成矿机制研究[J].山东国土资源,2023,39(11):20-31,12.基金项目
山东省自然科学基金:鲁西绿岩带型金矿的成矿机理研究(编号:ZR2020MD032) （编号:ZR2020MD032）
山东省地质勘查项目:栖霞地区金矿深部成矿潜力评价(编号:鲁勘字[2021]7号)、山东省栖霞市回兵崖-艾前夼地区金矿调查评价(编号:鲁勘字[2022]9号)联合资助 （编号:鲁勘字[2021]7号）
