scholarly journals New understanding guiding the discovery of a medium-scale tectonic altered rock type gold deposit on the northeastern margin of Jiaolai Basin, Shandong Province, China

China Geology ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1-3
Author(s):  
Liu-an Duan ◽  
◽  
Yun-cheng Guo ◽  
Xiao-meng Han ◽  
Jian-tian Wang ◽  
...  
2011 ◽  
Vol 71-78 ◽  
pp. 1809-1815
Author(s):  
Si Gen Ma ◽  
Ming Qin He ◽  
Yun Zheng Tang ◽  
Zhen Hua Wang

The altered rock type gold deposit is the one type gold deposits which can form super-large gold deposit. The super-large altered rock type gold deposit has its specialties among the forming time, forming generation, ore-hosted strata, wall rock alteration, area and structure. The southeast Guizhou Province has wonderful minerogenetic conditions. The area has the similar minerogenetic geological setting as many large, super-large altered rock type gold deposits. The characteristics of the altered rock type gold deposits that are distributed in this area have many similarities with other large, super-large altered rock gold deposits. It indicates that the deep of the southeast of Guizhou Province altered rock type gold metallogenic belt has great prospecting potentiality for looking for such type gold deposits from ore-hosted strata, ore-control structure, mineral paragenesis and ore-forming temperature etc.


Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 250
Author(s):  
Chuanpeng Liu ◽  
Wenjie Shi ◽  
Junhao Wei ◽  
Huan Li ◽  
Aiping Feng ◽  
...  

The Longquanzhan deposit is one of the largest gold deposits in the Yi-Shu fault zone (central section of the Tan-Lu fault zone) in Shandong Province, China. It is an altered-rock type gold deposit in which ore bodies mainly occur at the contact zone between the overlying Cretaceous rocks and the underlying Neoarchean gneissic monzogranite. Shi et al. reported that this deposit formed at 96 ± 2 Ma using pyrite Rb–Sr dating method and represents a new gold mineralization event in the Shandong Province in 2014. In this paper, we present new He–Ar–S isotopic compositions to further decipher the sources of fluids responsible for the Longquanzhan gold mineralization. The results show that the δ34S values of pyrites vary between 0.9‰ and 4.4‰ with an average of 2.3‰. Inclusion-trapped fluids in ore sulfides have 3He/4He and 40Ar/36Ar ratios of 0.14–0.78 Ra and 482–1811, respectively. These isotopic data indicate that the ore fluids are derived from a magmatic source, which is dominated by crustal components with minor mantle contribution. Air-saturated water may be also involved in the hydrothermal system during the magmatic fluids ascending or at the shallow deposit site. We suggest that the crust-mantle mixing signature of the Longquanzhan gold deposit is genetically related to the Late Cretaceous lithospheric thinning along the Tan-Lu fault zone, which triggers constantly uplifting of the asthenosphere surface and persistent ascending of the isotherm plane to form the gold mineralization-related crustal level magma sources. This genetic model can be applied, to some extent, to explain the ore genesis of other deposits near or within the Tan-Lu fault belt.


2007 ◽  
Vol 9 ◽  
pp. 13-13
Author(s):  
G. Y. Chen ◽  
D. S. Sun ◽  
W. Shao ◽  
Y. Chen

2020 ◽  
Vol 5 (1) ◽  
pp. 69-80 ◽  
Author(s):  
Ling-qiang Meng ◽  
Guang-zhou Mao ◽  
Xiao-tong Liu ◽  
Peng-rui An ◽  
Ming-ping Cao ◽  
...  

1997 ◽  
Vol 42 (3) ◽  
pp. 240-243
Author(s):  
Jianping Zhai ◽  
Kai Hu ◽  
Jianjun Lu

2000 ◽  
Vol 19 (3) ◽  
pp. 243-249
Author(s):  
Hongyang Li ◽  
Zhusen Yang ◽  
Zhenju Ding ◽  
Taiyi Luo ◽  
Zhenmin Gao

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