Results 21 to 30 of about 2,793,105 (151)

Case Studies of Rock Bursts in Tectonic Areas with Facies Change

open access: yesEnergies, 2019
Although tectonic areas with facies change (i.e., variation of coal seam thickness, coal seam dip angle, or coal quality) are one of the three major geological structures that induce rock bursts, case studies of rock bursts in these tectonic structures ...
Weiyao Guo   +3 more
doaj   +1 more source

Inversion of multiphase tectonic stress field and fracture evolution in shale gas reservoirs [PDF]

open access: yesYouqicang pingjia yu kaifa
The shale gas reserves in the Wufeng Formation-Longmaxi Formation of the Luzhou Block in southern Sichuan are substantial. Tectonic movements alter the ground stress, significantly impacting the exploration and development of shale gas.
WANG Jiawei, ZHANG Bohu, HU Yao, HE Zhengyi, HU Xinxin, CHEN Wei, LUO Chao
doaj   +3 more sources

Energy Release Analysis of a Severe Rockburst in a Headrace Tunnel Crossing a Tectonic Stress Zone

open access: yesShock and Vibration, 2019
When tunneling in a hard and brittle rock mass within a tectonic stress zone, dynamic failure of rock mass-rockburst may occur. Considering the occurrence of rockburst is generally induced by a sudden release of storage elastic energy, a numerical ...
H. M. Tian   +4 more
doaj   +1 more source

Geochemistry and tectonic development of Cenozoic magmatism in the Carpathian–Pannonian region [PDF]

open access: yes, 2011
This review considers the magmatic processes in the Carpathian–Pannonian Region (CPR) from Early Miocene to Recent times, as well as the contemporaneous magmatism at its southern boundary in the Dinaride and Balkans regions.
Hilary Downes   +3 more
core   +1 more source

Pre-Spud Mud Loss Flow Rate in Steeply Folded Structures

open access: yesOil & Gas Science and Technology, 2014
In this paper, a new method that predicts the pre-spud mud loss flow rate in formations with tectonic fractures of steeply folded structures is proposed.
Wang Zhiyuan, Sun Baojiang, Ke Ke
doaj   +1 more source

Interactions between thin- and thick-skinned tectonics at the northwestern front of the Jura fold-and-thrust belt (eastern France) [PDF]

open access: yes, 2008
International audienceThis study investigates spatial and temporal interactions of thin- and thick-skinned tectonics in a classical foreland setting located at the front of the Jura fold-and-thrust belt in eastern France.
Schmid, Stefan   +3 more
core   +1 more source

Geomorphic response to neotectonic activity in the Jura Mountains and in the southern Upper Rhine Graben [PDF]

open access: yes, 2008
Present-day tectonic activity at the southern end of the Upper Rhine Graben in central Western Europe is evidenced by significant seismicity, which has been documented over hundreds of years.
Fraefel, Marielle
core   +1 more source

Seismicity, focal mechanisms, and stress distribution in the Tres Vírgenes volcanic and geothermal region, Baja California Sur, Mexico [PDF]

open access: yesGeofísica Internacional, 2006
In October 1993 we carried out a seismic monitoring in the Tres Vírgenes volcanic region in order to record the background seismicity associated with the volcanic structures, the geothermal field and the tectonic features of the area. Hypocenters for 257
Luis Munguía, Victor Wong
doaj  

TECTONOPHYSICAL CRITERIA FOR FORECASTING THE LOCATIONS OF QUARTZ CRYSTAL DEPOSITS (CASE OF SUBPOLAR URAL)

open access: yesГеодинамика и тектонофизика, 2020
Spatial reconstruction of tectonic stresses within the Subpolar Ural quartz crystal-containing province was conducted by the kinematic method [Gushchenko, 1973, 1979] based on the main indicators of tectonic stresses on slickensides. Local stress states (
L. A. Sim
doaj   +1 more source

RESULTS OF THE TECTONOPHYSICAL STUDY IN THE DZHANKHOT THRUST ZONE (NORTHWESTERN CAUCASUS)

open access: yesГеодинамика и тектонофизика, 2022
The paper presents the results of detailed structural analysis of the Dzhankhot thrust zone which is a part of the system of overthrust nappe structures in the southern slope of the Northwestern Caucasus.
A. V. Marinin, T. Yu. Tveritinova
doaj   +1 more source

Home - About - Disclaimer - Privacy