Results 31 to 40 of about 6,255 (170)
Research on Uniaxial Compression Mechanics of Diorite under Flowing Acidic Solution Scouring
, 2022 The bedrock used for underground construction has obvious traces of hydrodynamic scouring damage, and the mechanical properties of bedrock especially are severely damaged under a groundwater environment.
Wen Wan +10 more
core +1 more source
Journal of Economic GeologyMiddle Miocene igneous rocks are located in the Northeast of Joveinan, the middle part of the Urumieh-Dokhtar Magmatic Belt. The igneous rocks have intruded into the Eocene volcano-sedimentary units.
Shahzad Sherafat +2 more
doaj +1 more source
Геофизический журнал, 2021 The work was performed to study the density heterogeneity of the crust of Ukraine and adjacent regions analyzing detailed 3D gravity models of the following tectonic regions and separate structures: Dnieper-Donets Basin and Donbas, Ingulsky megablock ...
I.B. Makarenko
doaj +1 more source
Deep Underground Science and Engineering, EarlyView.The graphical abstract presents a steel segment–anchorage support system for open TBM tunnels under extremely intense rockburst conditions. The steel segment resists dynamic impact, while the anchorage structure restrains segment deformation and transfers loads into the rock.
Zhijun Li +4 more
wiley +1 more source
Hornblende K-Ar age of the Kuroshima Diorite, Sasebo City, Nagasaki, Japan [PDF]
, 2008 Hornblende K-Ar age was dated for the Kuroshima Diorite, Sasebo City, Nagasaki, Japan. The result, 17.1±1.8 Ma, indicates that the Kuroshima Diorite actually intruded into the Lower Miocene Nojima Group around the end of its deposition.departmental ...
小坂,和夫 +3 more
core
Geochemical data as a tool for estimation of mineralization potential in the Hanar granitoids as part of Tertiary plutonism in Lut block (East of Iran) [PDF]
پترولوژی, 2020 Hanar intrusion located in 155 km South of Birjand in the east of Lut block and compositionally consist of tonalite, granodiorite, quartz-diorite and diorite that intruded as stock and dikes in volcanic sequence (basic to intermediate) outcropped in this
Siavash Omidianfar +2 more
doaj +1 more source
Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen
Geological Journal, EarlyView.By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang +3 more
wiley +1 more source
Geological Journal, EarlyView.This work advances landslide susceptibility mapping by incorporating short‐term trigger data with landscape susceptibility mapping. We also examine the importance of downsampling, watershed delineation and geospatial correlations in evaluating outcomes.
Kanta Kotsugi +3 more
wiley +1 more source
MAFIC INCLUSIONS (SOBSKY COMPLEX, POLAR URAL): U‐Pb (SIMS) DATA
Геодинамика и тектонофизика, 2019 The rocks of the Sobsky complex, composing the bulk of the Sobsky batholith in the Polar Urals, contain mafic inclusions. The geological, petrographic and petro‐geochemical data show that the mafic inclusions of the Sobsky rocks belong to igneous ...
О. V. Udoratina +3 more
doaj +1 more source
Geological Journal, EarlyView.The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang +6 more
wiley +1 more source