Hydrocarbon- and ore-bearing basinal fluids: a possible link between gold mineralization and hydrocarbon accumulation in the Youjiang basin, South China

2011 ◽  
Vol 47 (6) ◽  
pp. 663-682 ◽  
Author(s):  
X. X. Gu ◽  
Y. M. Zhang ◽  
B. H. Li ◽  
S. Y. Dong ◽  
C. J. Xue ◽  
...  
Keyword(s):  
South China ◽  
Gold Mineralization ◽  
Hydrocarbon Accumulation ◽  
Youjiang Basin

Sediment-hosted micro-disseminated gold mineralization constrained by basin paleo-topographic highs in the Youjiang basin, South China

2002 ◽  
Vol 20 (5) ◽  
pp. 517-533 ◽  
Author(s):  
Jianming Liu ◽  
Jie Ye ◽  
Hanlong Ying ◽  
Jiajun Liu ◽  
Minghua Zheng ◽  
...  
Keyword(s):  
South China ◽  
Gold Mineralization ◽  
Youjiang Basin

The role of structural reactivation for gold mineralization in northeastern Hunan Province, South China

2021 ◽  
pp. 104306
Author(s):  
Yueqiang Zhou ◽  
Deru Xu ◽  
Guojun Dong ◽  
Guoxiang Chi ◽  
Teng Deng ◽  
...  
Keyword(s):  
South China ◽  
Gold Mineralization ◽  
Hunan Province

Physical properties of the triassic host strata and their relations with gold mineralization in Youjiang Rift, South China

1998 ◽  
Vol 17 (3) ◽  
pp. 226-233
Author(s):  
Zhang Jingrong ◽  
Lu Jianjun ◽  
Zhang Xiaohao ◽  
Yao Suping ◽  
Sheng Xuefen
Keyword(s):  
Physical Properties ◽  
South China ◽  
Gold Mineralization

Ductile shear deformation and gold mineralization in the Hetai goldfield of the Yunkai Massif, South China Block

2019 ◽  
Vol 54 (2) ◽  
pp. 929-945
Author(s):  
Jinlong Ni ◽  
Junlai Liu ◽  
Jingcao Wang ◽  
Xiaoling Tang ◽  
Zhong Wang ◽  
...  
Keyword(s):  
Shear Deformation ◽  
South China ◽  
Gold Mineralization ◽  
South China Block ◽  
Ductile Shear ◽  
Ductile Shear Deformation

NOBLE GASES FINGERPRINT THE SOURCE AND EVOLUTION OF ORE-FORMING FLUIDS OF CARLIN-TYPE GOLD DEPOSITS IN THE GOLDEN TRIANGLE, SOUTH CHINA

2020 ◽  
Vol 115 (2) ◽  
pp. 455-469 ◽  
Author(s):  
Xiao-Ye Jin ◽  
Albert H. Hofstra ◽  
Andrew G. Hunt ◽  
Jian-Zhong Liu ◽  
Wu Yang ◽  
...  
Keyword(s):  
South China ◽  
Genetic Model ◽  
Gold Mineralization ◽  
Gold Deposits ◽  
Pore Fluid ◽  
Magmatic Fluid ◽  
Metamorphic Fluid ◽  
Independent Evidence ◽  
Golden Triangle ◽  
Carlin Type Gold Deposits

Abstract Precise constraints on the source and evolution of ore-forming fluids of Carlin-type gold deposits in the Golden Triangle (south China) are of critical importance for a better understanding of the ore genesis and a refined genetic model for gold mineralization. However, constraints on the source of ore fluid components have long been a challenge due to the very fine grained nature of the ore and gangue minerals in the deposits. Here we present He, Ne, and Ar isotope data of fluid inclusion extracts from a variety of ore and gangue minerals (arsenian pyrite, realgar, quartz, calcite, and fluorite) representing the main and late ore stages of three well-characterized major gold deposits (Shuiyindong, Nibao, and Yata) to provide significant new insights into the source and evolution of ore-forming fluids of this important gold province. Measured He isotopes have R/RA ratios ranging from 0.01 to 0.4 that suggest a maximum of 5% mantle helium with an R/RA of 8. The Ne and Ar isotope compositions are broadly comparable to air-saturated water, with a few analyses indicating the presence of an external fluid containing nucleogenic 38Ar and radiogenic 40Ar. Plotted on the 20Ne/4He vs. helium R/RA and 3He/20Ne vs. 4He/20Ne diagrams, the results define two distinct arrays that emanate from a common sedimentary pore fluid or deeply sourced metamorphic fluid end-member containing crustal He. The main ore-stage fluids are interpreted as a mixture of magmatic fluid containing mantle He and sedimentary pore fluid or deeply sourced metamorphic fluid with predominantly crustal He, whereas the late ore-stage fluids are a mixture of sedimentary pore fluid or deeply sourced metamorphic fluid bearing crustal He and shallow meteoric groundwater containing atmospheric He. Results presented here, when combined with independent evidence, support a magmatic origin for the ore-forming fluids. The ascending magmatic fluid mixed with sedimentary pore fluid or deeply sourced metamorphic fluid in the ore stage and subsequently mixed with the meteoric groundwater in the late ore stage, eventually producing the Carlin-type gold deposits in the Golden Triangle.

Mesozoic gold mineralization in Hainan Province of South China: Genetic types, geological characteristics and geodynamic settings

2017 ◽  
Vol 137 ◽  
pp. 80-108 ◽  
Author(s):  
Deru Xu ◽  
Zhilin Wang ◽  
Chuanjun Wu ◽  
Yueqiang Zhou ◽  
Qiang Shan ◽  
...  
Keyword(s):  
South China ◽  
Gold Mineralization ◽  
Hainan Province ◽  
Geodynamic Settings ◽  
Geological Characteristics ◽  
Genetic Types

scholarly journals Hydrocarbon detection based on Phase decomposition in Chaoshan Depression, northern South China Sea

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Guangjian Zhong ◽  
Renqi Jiang ◽  
Hai Yi ◽  
Jincai Wu ◽  
Changmao Feng ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Oil And Gas ◽  
Northern South China Sea ◽  
Forward Modeling ◽  
Hydrocarbon Accumulation ◽  
Phase Decomposition ◽  
Phase Component ◽  
Hydrocarbon Detection ◽  
China Sea

Located in northern South China Sea, Chaoshan Depression is mainly a residual Mesozoic depression, with a construction of Meso-Cenozoic strata over 7000m thick and good hydrocarbon accumulation conditions. Amplitude attribute of -90°phase component derived by phase decomposition is employed to detect Hydrocarbon in the zone of interest (ZOI) in Chaoshan Depression. And it is found that there are evident amplitude anomalies occurring around ZOI. Phase decomposition is applied to forward modeling results of the ZOI, and high amplitudes occur on the -90°phase component more or less when ZOI is charged with hydrocarbon, which shows that the amplitude abnormality in ZOI is probably caused by oil and gas accumulation.

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