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A Discussion on Ore Characteristics and Genesis of Tianwangtai Mountain Gold Deposit in Heilongjiang Province
Author(s) -
ZENG Guoping,
YAO Shuzhen,
HE Mouchun,
XIONG Suofei
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12375_74
Subject(s) - gold ore , geology , mining engineering , ore genesis , geochemistry , paleontology , hydrothermal circulation , fluid inclusions
The Tianwangtai Mountain gold deposit located 35km southwest of Huma county, Heilongjiang province , containing more than 6.5t of gold. The geotectonic position of the gold deposit is in north Mesozoic volcanic rock belt of the Da Hinggan Mountains, Northeast of Mongolia-Xing An giant composition orogenic zone. The Mesozoic volcanic rock including Ganhe formation (K1g) rhyolite, Jiufeng mountain formation(K1j) tuffsandstone and Guanghua formation(K1gn) andesite tuff are the surrounding rocks in mining area. The faults in EW, NW, NE-trending and volcanic structure are the main structures which controlling the ore deposit, while the faults in SN are the most important controlling structure of ore body. Medium-fine grained syengranite(K1ζγ) distributed in the west of mining area is the main intrusion, while there are some granite porphyry(γπ) and rhyolite porphyry(λπ) dikes emplaced in the faults.