Results 171 to 180 of about 295,573 (332)

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

Paired magnetic susceptibility and geochemistry of young volcanism in Iceland and Tengchong, China. [PDF]

Sci Data
Zhang Y, Mitchell RN.
europepmc   +1 more source

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

GEOCHEMISTRY AND TECTONIC SETTING OF METAMORPHIC SOLE ROCKS AND MAFIC DIKES FROM THE PINARBAŞI (KAYSERI) OPHIOLITE, CENTRAL ANATOLIA (TURKEY)

, 2005
Özden Vergili, Osman Parlak
openalex   +2 more sources

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

High-resolution tephrochronology resolves stratigraphic complexities in archaeologically significant Nariokotome tuffs, Turkana Basin. [PDF]

Proc Natl Acad Sci U S A
Samim S, Dalton H, Phillips D, Hergt J.
europepmc   +1 more source

Vendian-Cambrian Rocks of the Upper Kalar Graben-Syncline of the Southern Part of Siberian Craton: Mineralogy and Major Elements Geochemistry

S. I. Merenkova, T. G. Kuz’mina, Е. П. Карпова, R. R. Gabdullin, V. Yu. Vodovozov, T. V. Romashova, Irina Hohlova   +6 more
openalex   +1 more source

Thermal conductivities under high pressure in core samples from IODP NanTroSEIZE drilling site C0001 [PDF]

, 2011
Abdulagatov, Abdulagatov, Abdulagatova, American Society for Testing and Materials (ASTM), Ashi, Demirci, Expedition 315 Scientists, Expedition 316 Scientists, Franklin, Galson, Goto, Harris, Heki, Hideki Mukoyoshi, Horai, Horai, Horai, Hyndman, Kano, Kinoshita, Kinoshita, Kukkonen, Lachenbruch, Lallemand, Lin, Lin, Lin, Manabu Takahashi, Masataka Kinoshita, Moore, Morin, Osako, Osamu Tadai, Park, Pribnow, Pribnow, Ratcliffe, Sass, Schön, Schön, Seipold, Seipold, Takehiro Hirose, Tanaka, Villinger, Walsh, Wang, Wataru Tanikawa, Weiren Lin, Woodside, Xu, Yamano   +51 more
core   +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

Author Correction: No apparent state-dependency of equilibrium climate sensitivity between the Pleistocene glacial and interglacial climate states. [PDF]

Nat Commun
Da J, Zhang YG, Liu X, Breecker DO, Li GK, Chen T, Ji J.   +6 more
europepmc   +1 more source