The Experts below are selected from a list of 6033 Experts worldwide ranked by ideXlab platform
Timothy R. Baker - One of the best experts on this subject based on the ideXlab platform.
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Active fault and shear processes and their implications for Mineral Deposit formation and discovery
Journal of Structural Geology, 2010Co-Authors: Steven Micklethwaite, Heather A. Sheldon, Timothy R. BakerAbstract:Mineralisation associated with fault, vein and shear zone systems can be related to processes that operated when those systems were active. Despite the complexity of processes that operate in faults, veins and shear zones, there are typically systematic patterns in geometry (e.g. segmentation and stepovers) and scaling, which are the cumulative result of multiple slip events. In turn, there are systematic patterns in individual slip events (e.g. earthquake aftershock sequences, shear zone creep transients, earthquake swarms) with implications for permeability enhancement and Mineral Deposit formation. This review identifies three avenues for future research:(1) a need to improve constraints on the scaling characteristics of faults, shear zones and veins specifically related to Mineralisation. (2) The integration of stress change and damage concepts with 3-D lithological observations and reactive transport modelling.(3) Understanding the impact of multiphase fluids (e.g. H2O CO2–NaCl fluids) on fault mechanics and permeability. Static stress change modelling, damage mechanics modelling and fault/vein scaling concepts have promising predictive capabilities for the future discovery of Mineral Deposits. The review mostly refers to epithermal, mesothermal, and carlin-type gold Deposits, but the principles could extend to any Hydrothermal Mineral Deposit formed during faulting, fracturing and shearing.
Steven Micklethwaite - One of the best experts on this subject based on the ideXlab platform.
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Active fault and shear processes and their implications for Mineral Deposit formation and discovery
Journal of Structural Geology, 2010Co-Authors: Steven Micklethwaite, Heather A. Sheldon, Timothy R. BakerAbstract:Mineralisation associated with fault, vein and shear zone systems can be related to processes that operated when those systems were active. Despite the complexity of processes that operate in faults, veins and shear zones, there are typically systematic patterns in geometry (e.g. segmentation and stepovers) and scaling, which are the cumulative result of multiple slip events. In turn, there are systematic patterns in individual slip events (e.g. earthquake aftershock sequences, shear zone creep transients, earthquake swarms) with implications for permeability enhancement and Mineral Deposit formation. This review identifies three avenues for future research:(1) a need to improve constraints on the scaling characteristics of faults, shear zones and veins specifically related to Mineralisation. (2) The integration of stress change and damage concepts with 3-D lithological observations and reactive transport modelling.(3) Understanding the impact of multiphase fluids (e.g. H2O CO2–NaCl fluids) on fault mechanics and permeability. Static stress change modelling, damage mechanics modelling and fault/vein scaling concepts have promising predictive capabilities for the future discovery of Mineral Deposits. The review mostly refers to epithermal, mesothermal, and carlin-type gold Deposits, but the principles could extend to any Hydrothermal Mineral Deposit formed during faulting, fracturing and shearing.
Heather A. Sheldon - One of the best experts on this subject based on the ideXlab platform.
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Active fault and shear processes and their implications for Mineral Deposit formation and discovery
Journal of Structural Geology, 2010Co-Authors: Steven Micklethwaite, Heather A. Sheldon, Timothy R. BakerAbstract:Mineralisation associated with fault, vein and shear zone systems can be related to processes that operated when those systems were active. Despite the complexity of processes that operate in faults, veins and shear zones, there are typically systematic patterns in geometry (e.g. segmentation and stepovers) and scaling, which are the cumulative result of multiple slip events. In turn, there are systematic patterns in individual slip events (e.g. earthquake aftershock sequences, shear zone creep transients, earthquake swarms) with implications for permeability enhancement and Mineral Deposit formation. This review identifies three avenues for future research:(1) a need to improve constraints on the scaling characteristics of faults, shear zones and veins specifically related to Mineralisation. (2) The integration of stress change and damage concepts with 3-D lithological observations and reactive transport modelling.(3) Understanding the impact of multiphase fluids (e.g. H2O CO2–NaCl fluids) on fault mechanics and permeability. Static stress change modelling, damage mechanics modelling and fault/vein scaling concepts have promising predictive capabilities for the future discovery of Mineral Deposits. The review mostly refers to epithermal, mesothermal, and carlin-type gold Deposits, but the principles could extend to any Hydrothermal Mineral Deposit formed during faulting, fracturing and shearing.
Meng Qing-wei - One of the best experts on this subject based on the ideXlab platform.
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Hydrothermal ORE-FORMING SYSTEM IN THE YANGBAJAIN-LHNZHUB AREA,TIBET,AND ITS NUMERICAL SIMULATION
Journal of Geomechanics, 2006Co-Authors: Meng Qing-weiAbstract:With the control of the regional metallotectonic system,To the east from Yangbajing and Time from new arrive old,the isotopic analyses of hydrogen and oxygen from Hydrothermal presents the regulation variety along with the plateau uplift.The Hydrothermal Metallogenesis System with the control of the fault network and heater drive.According to the computation and analysis of the tectonic stress,heat simulation and the deepth of earthquake focus,it can be formed that there is a type area of Hydrothermal Metallogenesis System until now.It has very important theories meaning of the dynamic metallotectonic and has got the actual application in the finding structure and Hydrothermal Mineral Deposit driven by heat.
Li Shi-jin - One of the best experts on this subject based on the ideXlab platform.
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Study on Forming Conditions and Metallogenesis of Kuhai Mercury Deposit,Qinghai Province
Journal of Jilin University, 2009Co-Authors: Li Shi-jinAbstract:Kuhai gold-bearing mercury Deposit is located in the southern orogenic belt of Eastern Kunlun.Its wall rocks are a suit of shore to shallow sea facies carbonaceous carbonate and quartz sandstone formations.Ore bodies are jointly controlled by both strata and structures,and usually they are distributed in folded layers' fissures,structural fissures and joints or in the broken belts of fold flanks.Metallogenic fluids are mainly rock formation water and meteoric water as well as possible addition of magmatic Hydrothermal solutions.The ore-forming fluids contain NaCl of 1.90%-5.70% and the density is in the range of 0.78-0.97 g/cm3.The fluid inclusions show homogenized temperature at 118.8-291.6℃.The metallogenic pressure is about 43.24 MPa,correspondent to a depth of 4.56 km.Studies indicate that the Low Permian carbon-bearing strata in the area has provided the main ore-forming materials which were further mobilized by magmatic Hydrothermal fluids during the Late Triassic tectonic activities and finally formed as Mineral Deposit at the broken folded belts.Overall,Kuhai mercury Deposit is a middle to low temperature Hydrothermal Mineral Deposit and is considered as an epizonal Deposit in terms of orogenic gold Deposit series.
