• 责任者：Wang Zhilin (Research Center of Petroleum ; Natural Gas and Mineral Resources ; Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou 510640 ; China) ; Xu Deru
• 刊名：Geotectonica et Metallogenia
• 出版年：2011
• 卷期：35(2)
• 关键词：铁矿 ; iron ores ; 花岗闪长斑岩 ; granodiorite porphyry ; 铀—铅计时 ; U-Pb dating ; 海南 ; Hainan Province
• 页码：p.292-299
• 图表：6 illus., 2 tables, 31 refs.
• 分类号：0801
• issnNo：ISSN1001-1552
• isbnNo：CN44-1595/P

The Shilu iron ore deposit, located in Hainan Province, is the biggest rich iron deposit in China.  CL images of the analyzed zircons from the granodiorite porphyry are characterized by well-developed oscillatory zoning, showing these zircons are magmatic zircons.  LA-ICP-MS U-Pb dating of the zircons from the granodiorite porphyry in the Shilu mine suggests that the porphyry was intruded in (93±2) Ma.  Considering the extensional tectonic environment of South China in Late Yanshanian and geological characteristics in the Shilu mine, the authors suggest the emplacement of the granite porphyry resulted in the reworking and superimposition on the Shilu iron ore deposit.