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LIU Ming-jun, LI Hou-min, LI Li-xing, YANG Xiu-qing, YAO Liang-de, HONG Xue-kuan, CHEN Jing. Petrological and Mineralogical Characteristics of the Skarnoid in No.2 Mining Area of the Gongchangling Iron Deposit, Liaoning, China[J]. Rock and Mineral Analysis, 2012, 31(6): 1067-1076.
Citation: LIU Ming-jun, LI Hou-min, LI Li-xing, YANG Xiu-qing, YAO Liang-de, HONG Xue-kuan, CHEN Jing. Petrological and Mineralogical Characteristics of the Skarnoid in No.2 Mining Area of the Gongchangling Iron Deposit, Liaoning, China[J]. Rock and Mineral Analysis, 2012, 31(6): 1067-1076.
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Petrological and Mineralogical Characteristics of the Skarnoid in No.2 Mining Area of the Gongchangling Iron Deposit, Liaoning, China

  • 1.

    Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

  • 2.

    State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Science and Resources, China University of Geosciences (Beijing), Beijing 100083, China

  • 3.

    Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

  • 4.

    Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

  • 5.

    Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

  • 6.

    State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Science and Resources, China University of Geosciences (Beijing), Beijing 100083, China

  • 7.

    Institute of Geological Exploration, Liaoning Metallurgical Geological Exploration Bureau, Anshan 114002, China

  • 8.

    Institute of Geological Exploration, Liaoning Metallurgical Geological Exploration Bureau, Anshan 114002, China

  • 9.

    Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China

More Information
  • Received Date: February 19, 2012
  • Revised Date: August 19, 2012
  • Published Date: November 09, 2012
    Abstract
  • Located in Anshan-Benxi area, the No.2 mining area of the Gongchangling iron deposit is the most important producer of high-grade Fe ores in Anshan-type diagenetic-metamorphic banded iron formation. Unlike the widespread low-grade iron ores hosted in other banded iron formations of the Anshan-Benxi area, there is a large amount of skarnoid occurring close to the high-grade ores in the No.2 mining area of the Gongchangling iron deposit. The high-grade ore bodies have a close genetic relationship with skarnoid. In order to investigate the mineralization of high-grade ore, this study presents the petrological and mineralogical characteristics of the skarnoid. The skarnoid was divided into four types, including garnet-rich type, chlorite-rich type, garnet chlorite-rich type and magnetite-actinolite-rich type. Electron microprobe data shows that the garnet member is dominated by almandite, the amphibole is tremolite in series with calci amphiboles and the chlorite is prochlorite. The skarnoid and high-grade ores were formed by hydrothermal interaction with low-grade ores, which were products of the same hydrothermal activity.
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    • References (26)
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