Results 111 to 120 of about 2,650,380 (305)

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Constrained gravity inversion unravels the Moho depth and tectonic patterns in China and its adjacent areas

Earth and Planetary Physics
The Mohorovicic discontinuity (Moho) boundary separating the Earth’s crust and mantle reflects the evolutionary trajectory of the Earth’s crust, yielding crucial insights into crustal formation, tectonic evolution, and profound dynamic processes. However,
ZhiXin Xue, DongMei Guo, Jian Fang, RongHua Cui   +3 more
doaj   +1 more source

Structural-tectonic architecture of limestone quarry Gombasek on Plešivec Plateau of Silica Nappe [PDF]

Acta Montanistica Slovaca, 2006
Investigation of bends, fold deformations, sigmoidal foliation trend as well as displacement of Silica Nappe surfaces revealed gradual evolution of Late Cretaceous tectonic movements in the limestone quarry Gombasek located on Plešivec Plateau of Silica ...
Julián Kondela, Stanislav jun. Jacko, Tibor Sasvári   +2 more
doaj  

Basin Inversion in the Newark Basin Using Data From the Borehole Televiewer [PDF]

, 1997
Basin inversion occurs when a rift basin undergoes initial extension followed by shortening . Shortening and extension are believed to have the same principal axis of deformation. The later shortening phase of deformation is believed to result when ridge-
Lupo, Tony
core  

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Lithospheric thickness records tectonic evolution by controlling metamorphic conditions. [PDF]

Sci Adv, 2023
Zhang ZJ, Chen GX, Kusky T, Yang J, Cheng QM.   +4 more
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Analysis of Characteristics and Main Controlling Factors of Shallow Geological Hazards in the Zhongsha Islands Region of the South China Sea

Journal of Marine Science and Engineering
This study utilized single-channel seismic, multi-channel seismic, and multibeam bathymetric data to examine the distribution and geomorphological background of geological hazards in the Zhongsha Islands region of the South China Sea.
Rui Wang, Yang Wang, Qunfang Ye, Yunzhong Zhang   +3 more
doaj   +1 more source

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

Deep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei, Mojtaba D. fallahi, Ali Uromeihy, Mohammad R. Nikoodel, Mohammad Fathollahy   +4 more
wiley   +1 more source

Constraining the tectonic evolution of rifted continental margins by U-Pb calcite dating. [PDF]

Sci Rep, 2023
Hestnes Å, Drost K, Sømme TO, Gasser D, Scheiber T, Linge H, Chew D, Jacobs J.   +7 more
europepmc   +1 more source