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Global Geology 2011, 14(1) 29-43 DOI:
ISSN: 1673-9736 CN: 22-1371/P |
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Geochemistry and metallogenic age of Sishanlinchang gold-silver deposit in Jidong of Heilongjiang |
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HUANG Yongwei1, 2, LIU Jiajun2 and GAO Chen1 |
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1�� The First Institute of Geology Exploration of Heilongjiang Province��Mudanjing 157011��Heilongjiang��China; 2�� School of the Earth Sciences and Resources��China University of Geosciences��Beijing 100083��China |
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Abstract:
the Sishanlinchang gold-silver deposit is mainly composed of gold-quartz vein type ores�� It has many kinds of sulfides and gold in high grade�� The Au has a close correlation with As��Pb��Ag and Cu�� Geochemically�� the deposit is characterized by relatively enrichment in LREE with moderate or lower Eu negative anomaly�� Sulfur isotopes appear as single and deep source��and lead isotopes indicate the Pb is from the earth's mantle and crust��which mainly are orogenic belt Pb��the ore-forming fluid has a temperature of 215�� �� 350�� and a low salinity with a mixture of characteristics of magmaitc hydrothermal and meteoric water�� The ore-forming age is 111. 1 �� 111. 4 Ma�� The deposit is formed in mineralization and precipitation of metallogenic materials caused by the mixture of the magmatic hydrothermal fluid and meteoric water�� |
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Keywords:
epithermal gold deposits
geochemistry
metallogenic materials
Jidong
Heilongjiang
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