Metallogenic Epoch and Mineralization Zoning of the Magmatic Deposits, China

2014 ◽  
Vol 88 (s2) ◽  
pp. 326-327 ◽  
Author(s):  
Yuwang WANG ◽  
Dedong LI ◽  
Yu SHI ◽  
Hongjing XIE
Keyword(s):  
Metallogenic Epoch

Confirmation and significance of Caledonian metallogenic epoch for gold deposits in South China

2001 ◽  
Vol 20 (4) ◽  
pp. 296-301
Author(s):  
Xiuzhang Wang ◽  
Huaying Liang ◽  
Qiang Shan ◽  
Jingping Cheng ◽  
Ping Xia
Keyword(s):  
South China ◽  
Gold Deposits ◽  
Metallogenic Epoch

LA-ICP-MS zircon U–Pb and sericite 40Ar/39Ar ages of the Songjianghe gold deposit in southeastern Jilin Province, Northeast China, and their geological significance

2019 ◽  
Vol 56 (6) ◽  
pp. 607-628
Author(s):  
Xiao-Tian Zhang ◽  
Jing-Gui Sun ◽  
Zheng-Tao Yu ◽  
Quan-Heng Song
Keyword(s):  
Gold Deposit ◽  
Gold Deposits ◽  
Pacific Plate ◽  
Jilin Province ◽  
Late Triassic ◽  
Retrograde Metamorphism ◽  
Late Permian ◽  
Multi Stage ◽  
Metallogenic Epoch ◽  
Host Rocks

The Songjianghe deposit is a newly discovered altered gold deposit in the southeastern Jiapigou-Haigou Gold Metallogenic Belt (JHGMB) in southeastern Jilin Province of NE China. The host rocks were considered to be the Mesoproterozoic Seluohe Group, and the metallogenic epoch lacked accurate isotopic constraints. To determine the age and metallogenic setting of the deposit, we describe the geologic characteristics of the deposit and present the results of petrographic and geochronologic analyses of the host rocks and ores. The ore bodies are hosted within a suite of amphibolite facies metamorphic rocks superimposed by greenschist facies indicative of retrograde metamorphism. Zircon U–Pb dating results indicate that the host rocks belong to the Jiapigou Group that formed at the end of the Neoarchean (2543–2527 Ma). Subsequently, the rocks successively underwent metamorphism during the late Neoarchean (2521–2506 Ma), retrograde metamorphism caused by the closure of the Paleo-Asian Ocean during the late Permian to Early Triassic (262–250 Ma), and extension after the closure of the Paleo-Asian Ocean during the Late Triassic (231–210 Ma). Sericite 40Ar/39Ar dating results suggest that the Songjianghe deposit formed during the Late Jurassic between 157 Ma and 156 Ma. By combining these new insights with those of previous studies, we propose that the Songjianghe deposit is a mesothermal gold deposit and that mineralization occurred during the extensional period in the intermittent stage that followed the first subduction of the Paleo-Pacific Plate. All the gold deposits in the JHGMB formed from the late Permian to Early Cretaceous by multi-stage mineralization events that corresponded temporally with the tectonic evolution of the Paleo-Asian Ocean and the episodic subduction of the Paleo-Pacific Plate.

Discussion on Metallogenic Epoch and Ore-Forming Types of Ore Deposits in Qinling-Qilian-Kunlun Metallogenic Domain

2013 ◽  
Vol 448-453 ◽  
pp. 3732-3736
Author(s):  
Lin Lu ◽  
Fu Jue Jiang
Keyword(s):  
Ore Deposits ◽  
Statistical Characteristics ◽  
Geological Processes ◽  
Metallogenic Epoch

On the basis of discovered deposits in Qinling-Qilian-Kunlun metallogenic domain, the paper describes statistical characteristics of deposit size and ore-forming type to find the rule of the geological processes through describing mineralization time, types, scale and ore-bearing construction and draws a conclusion of regional mineralization.

Geological characteristics, deposit type, and metallogenic epoch of the Katebasu gold-copper deposit in western Tianshan

2017 ◽  
Vol 53 ◽  
pp. 263-277 ◽  
Author(s):  
Yunhua Liu ◽  
Yixiao Han ◽  
Zhen Li ◽  
Xuanxue Mo ◽  
Yu Huang ◽  
...  
Keyword(s):  
Copper Deposit ◽  
Geological Characteristics ◽  
Western Tianshan ◽  
Deposit Type ◽  
Metallogenic Epoch

Metallogenic Epoch of Nonferrous Metallic and Silver Deposits in the Jiaodong Peninsula, China and its Geological Significance

2017 ◽  
Vol 91 (4) ◽  
pp. 1305-1325 ◽  
Author(s):  
Mingchun SONG ◽  
Shanshan WANG ◽  
Lixin YANG ◽  
Jie LI ◽  
Shiyong LI ◽  
...  
Keyword(s):  
Geological Significance ◽  
Jiaodong Peninsula ◽  
Silver Deposits ◽  
Metallogenic Epoch

Age of Molybdenum and Tungsten Mineralization in Northern British Columbia

1972 ◽  
Vol 9 (12) ◽  
pp. 1727-1734 ◽  
Author(s):  
P. A. Christopher ◽  
W. H. White ◽  
J. E. Harakal
Keyword(s):  
British Columbia ◽  
Granite Porphyry ◽  
Property A ◽  
Eastern Margin ◽  
Upper Limit ◽  
Early Tertiary ◽  
Metallogenic Epoch ◽  
Tungsten Mineralization ◽  
And Tungsten

A K–Ar mean age of 49.8 ± 0.7 m.y. was determined for four biotite concentrates from granite porphyry on the Mt. Haskin Mo and Mt. Reed Mo–W properties east of Cassiar, British Columbia.Biotite K–Ar ages of 71.7 ± 2.6 m.y. and 68.3 ± 2.7 m.y. obtained from a young phase of the Cassiar intrusions, occurring along the eastern margin of the Cassiar Batholith, place an upper limit on the age of the molybdenum mineralization on the Cassiar Molybdenum property. A 62.0 ± 2.2 m.y. age, determined for a biotite concentrate from the coarse alaskite phase of the Mt. Leonard Boss, dates the molybdenum mineralization on the Adanac property.These ages suggest that the early Tertiary metallogenic epoch, documented in central British Columbia and southeastern Alaska, can be extended through northern British Columbia.

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