Tin–polymetallic sulfide deposits in the eastern part of the Dachang tin field (South China) and the role of black shales in their origin

2002 ◽  
Vol 38 (1) ◽  
pp. 39-66 ◽  
Author(s):  
Jan Pašava ◽  
Bohdan Kříbek ◽  
Petr Dobeš ◽  
Ivan Vavřín ◽  
Karel Žák ◽  
...  
Keyword(s):  
South China ◽  
Black Shales ◽  
Sulfide Deposits

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

scholarly journals The role of synoptic-scale waves in the onset of the South China Sea summer monsoon

2018 ◽  
Vol 19 (11) ◽  
pp. e858 ◽  
Author(s):  
Jingliang Huangfu ◽  
Wen Chen ◽  
Xu Wang ◽  
Ronghui Huang
Keyword(s):  
South China Sea ◽  
Summer Monsoon ◽  
South China ◽  
The South China Sea ◽  
Synoptic Scale ◽  
The South ◽  
China Sea

Role of surface warming in the northward shift of tropical cyclone tracks over the South China Sea in November

2017 ◽  
Vol 36 (5) ◽  
pp. 67-72 ◽  
Author(s):  
Jia Sun ◽  
Guihua Wang ◽  
Juncheng Zuo ◽  
Zheng Ling ◽  
Dahai Liu
Keyword(s):  
Tropical Cyclone ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
Surface Warming ◽  
China Sea ◽  
Cyclone Tracks ◽  
Tropical Cyclone Tracks

scholarly journals Origin and Enrichment of Vanadium in the Lower Cambrian Black Shales, South China

ACS Omega ◽  
2021 ◽  
Author(s):  
Tong Wu ◽  
Ruidong Yang ◽  
Lei Gao ◽  
Jun Li ◽  
Junbo Gao
Keyword(s):  
South China ◽  
Lower Cambrian ◽  
Black Shales

scholarly journals Role of pressure solution in the formation of bedding-parallel calcite veins in an immature shale (Cretaceous, southern UK)

2018 ◽  
Vol 156 (5) ◽  
pp. 918-934 ◽  
Author(s):  
QINGFENG MENG ◽  
JOHN HOOKER ◽  
JOE CARTWRIGHT
Keyword(s):  
Critical Role ◽  
Maximum Principal Stress ◽  
Feedback Mechanism ◽  
Black Shales ◽  
Pressure Solution ◽  
Overburden Pressure ◽  
Axis Orientation ◽  
Calcite Veins ◽  
Fibre Growth

AbstractBedding-parallel fibrous calcite veins in black shales (Cretaceous, southern UK) were investigated using a combined field, stable isotopic geochemistry, petrographic and crystallographic method to examine their formation mechanism. Calcite veins occur in all shale beds and are most abundant in the bituminous shales of the Chief Beef Beds. The calcite fibres in these veins exhibit either an antitaxial fibre growth with curvy stylolites as the median zone, or a predominantly syntaxial, upwards growth. The calcite veins range from –0.49 to 1.78‰ of δ13C values, and –6.53 to –0.03‰ of δ18O values, which are both similar to those of their host shales. Our petrographic observations demonstrate that subhorizontal and interconnecting microstylolite networks commonly occur within the calcite veins. Equant calcite grains in the median zones exhibit indenting, truncating and also interpenetrating grain contacts. It is interpreted that the fibrous calcite veins were sourced by neomorphic calcite from their host shales, with evidence from the δ13C signatures, pressure-solution features (stylolites, microstylolites and grain contact styles) and embedded fossil ghosts within the veins. The diagenetic fluids, from which calcite was precipitated, were a mixing of the original seawaters and 18O-depleted meteoric waters. Development of bedding-parallel calcite veins is considered to have been enhanced by pressure solution as a positive feedback mechanism, which was facilitated by the overburden pressure as the maximum principal stress. Calcite fibres, with a predominant subvertical c-axis orientation, exhibit a displacive growth in porous shales and a replacive growth at vein-limestone contacts. This study highlights the critical role of pressure solution in the formation of bedding-parallel calcite veins during burial and diagenesis of immature black shales.

scholarly journals Role of Air-sea Coupling in the Interannual Variability of the South China Sea Summer Monsoon

2011 ◽  
Vol 89A ◽  
pp. 283-290 ◽  
Author(s):  
Rosbintarti Kartika LESTARI ◽  
Masahiro WATANABE ◽  
Masahide KIMOTO
Keyword(s):  
South China Sea ◽  
Interannual Variability ◽  
Summer Monsoon ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea
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