To understand the stability of coal and rock in areas normal faults disturbed by dynamic loads blasting, damage characteristics within a fault are investigated using similarity simulation tests. The mechanism for gas outbursts is analyzed theoretically, results indicate that maximum tensile stress vertical direction blasting hole normal-fault model 1.17 times no-fault model. propagation cracks ...

The distribution of rheologically strong cratons, and their weakening by metamorphic hydration reactions, is fundamental importance for understanding first-order strength contrasts within the crust resulting controls on tectonic evolution continents. In this study, Douglas Harbor structural window Paleoproterozoic Trans-Hudson orogen Canada used to study footwall Archean Superior craton basemen...

Unlike land mining, the safety of seabed mining is seriously threatened by an overlying water body. In order to ensure subsea projects, it great importance understand failure characteristics and influencing factors strata deformation. Focusing on Sanshandao Gold Mine, a typical submarine deposit in China, geomechanical model testing numerical simulations were carried out. The results show that ...

H-pit is one of the significant ore lenses Chatree mine in Thailand. Au-Ag mineralization mainly occurs as veins, stockworks, and minor breccias hosted by volcanic volcaniclastic rocks. Disseminated pyrites are commonly present near mineralized veins hanging wall zone. This study aims to assess acid rock drainage (ARD) potential heavy metal content from area. The results indicate that a acid-fo...

Abstract. The Bohemian Massif exposes structures and metamorphic rocks remnant from the Variscan orogeny in central Europe is bordered by Franconian Fault System (FFS) to west. Across FFS, units are buried Permo-Mesozoic sedimentary rocks. We integrate existing DEKORP 2D seismic reflection, well, surface geological data with newly acquired FRANKEN survey investigate possible westward continuati...

Clear demonstrations of detailed sequences of thrust development are rare, particularly with respect to hindward-imbricating successions. Similarly, well-constrained chronologies of the timing of multiple thrust motions and associated rates of shortening are also uncommon. Along the eastern oblique ramp of the South-Central Unit (SCU) of the Pyrenees, well-exposed structural geometries and cros...

[1] In the Shiquanhe area of far-western Tibet, midCretaceous strata lie unconformable on ophiolitic melange and Jurassic flysch associated with the Bangong-Nujiang suture zone. On the basis of our mapping and geochronologic studies, we suggest that these Cretaceous strata were shortened by >57% over a north south distance of 50 km during Late Cretaceousearly Tertiary time. The Late Cretaceous ...