Thermal evolution and slip history of the Renbu Zedong Thrust, southeastern Tibet

1997 ◽  
Vol 102 (B2) ◽  
pp. 2659-2680 ◽  
Author(s):  
Xavier Quidelleur
Keyword(s):  
Thermal Evolution ◽  
Slip History ◽  
History Of ◽  
Southeastern Tibet

scholarly journals Thermal evolution and slip history of the Renbu Zedong Thrust, southeastern Tibet

1997 ◽  
Vol 102 (B2) ◽  
pp. 2659-2679 ◽  
Author(s):  
Xavier Quidelleur ◽  
Marty Grove ◽  
Oscar M. Lovera ◽  
T. Mark Harrison ◽  
An Yin ◽  
...  
Keyword(s):  
Thermal Evolution ◽  
Slip History ◽  
History Of ◽  
Southeastern Tibet

QUATERNARY SLIP HISTORY OF THE SANTA SUSANA FAULT, WESTERN TRANSVERSE RANGES, CALIFORNIA

2019 ◽  
Author(s):  
Reed J. Burgette ◽  
◽  
Jonathan J. Ingram ◽  
Michael P. Reed ◽  
Katherine M. Scharer ◽  
...  
Keyword(s):  
Transverse Ranges ◽  
Slip History ◽  
History Of

Use of pyrite microfabric as a key to tectono-thermal evolution of massive sulphide deposits – an example from Deri, southern Rajasthan, India

1998 ◽  
Vol 62 (2) ◽  
pp. 197-212 ◽  
Author(s):  
Anju Tiwary ◽  
Mihir Deb ◽  
Nigel J. Cook
Keyword(s):  
Thermal Evolution ◽  
Regional Metamorphism ◽  
Massive Sulphide ◽  
Ductile Deformation ◽  
Sulphide Deposit ◽  
Fine Grained ◽  
Thermal Metamorphism ◽  
Sulphide Ores ◽  
History Of ◽  
South Delhi Fold Belt

AbstractPyrite is an ubiquitous constituent of the Proterozoic massive sulphide deposit at Deri, in the South Delhi Fold Belt of southern Rajasthan. Preserved pyrite microfabrics in the Zn-Pb-Cu sulphide ores of Deri reveal a polyphase growth history of the iron sulphide and enable the tectono-thermal evolution of the deposit to be reconstructed.Primary sedimentary features in Deri pyrites are preserved as compositional banding. Regional metamorphism from mid-greenschist to low amphibolite facies is recorded by various microtextures of pyrite. Trails of fine grained pyrite inclusions within hornblende porphyroblasts define S1-schistosity. Pyrite boudins aligned parallel to S1 mark the brittle–ductile transformation of pyrite during the earliest deformation in the region. Isoclinal to tight folds (F1 and F2) in pyrite layers relate to a ductile deformation stage during progressive regional metamorphism. Peak metamorphic conditions around 550°C, an estimation supported by garnet–biotite thermometry, resulted in annealing of pyrite grains, while porphyroblastic growth of pyrite (up to 900 µm) took place along the retrogressive path. Brittle deformation of pyrite and growth of irregular pyritic mass around such fractured porphyroblasts characterize the waning phase of regional metamorphism. A subsequent phase of stress-free, thermal metamorphism is recorded in the decussate and rosette textures of arsenopyrite prisms replacing irregular pyritic mass. Annealing of such patchy pyrite provides information regarding the temperature conditions during this episode of thermal metamorphism which is consistent with the hornblendehornfels facies metamorphism interpreted from magnetite–ilmenite geothermometry (550°C) and sphalerite geobarometry (3.5 kbar). A mild cataclastic deformation during the penultimate phase produced microfaults in twinned arsenopyrite prisms.

Initiation and Long-Term Slip History of the Altyn Tagh Fault

2001 ◽  
Vol 43 (12) ◽  
pp. 1087-1093 ◽  
Author(s):  
Yongjun Yue ◽  
Bradley D. Ritts ◽  
Stephan A. Graham
Keyword(s):  
Altyn Tagh Fault ◽  
Altyn Tagh ◽  
Slip History ◽  
History Of

Proof of Sinian Reservoir Bitumen in Sichuan Basin as Oil Cracking Cause

2013 ◽  
Vol 316-317 ◽  
pp. 815-818
Author(s):  
Dan Liu ◽  
Jian Li ◽  
Zeng Ye Xie ◽  
Ai Sheng Hao
Keyword(s):  
Crude Oil ◽  
Sichuan Basin ◽  
Thermal Evolution ◽  
Geochemical Characteristics ◽  
Optical Characteristics ◽  
Solid Bitumen ◽  
History Of ◽  
Cavity Filling ◽  
Oil Cracking

In order to reveal the cause of the largely distributing bitumen in Sinian reservoirs of Sichuan Basin, geochemical characteristics of the bitumen have been studied. From its microscopic optical characteristics, large proportion of the solid bitumen was found as cavity-filling. What’s more, the steroid and terpenoid biomarkers of the bitumen in the reservoir distribute normally, and 25-norhopane standing for degradation and washing function hasn’t been detected. Last but not least, condition of crude oil cracking was also possessed, as from the thermal evolution history of Sinian stratum of Sichuan. All of the above suggested that the bitumen was caused by oil cracking in the reservoir.

Quaternary slip history of the Bare Mountain fault (Nevada) from the morphology and distribution of alluvial fan deposits

Geology ◽  
1996 ◽  
Vol 24 (6) ◽  
pp. 559 ◽  
Author(s):  
David A. Ferrill ◽  
John A. Stamatakos ◽  
Sidney M. Jones ◽  
Bret Rahe ◽  
H. Lawrence McKague ◽  
...  
Keyword(s):  
Alluvial Fan ◽  
Slip History ◽  
History Of
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