Results 81 to 90 of about 2,950,395 (197)

Tectonic stress fields in Northeast Bulgaria

Geologica Balcanica, 1990
The reconstruction of the stress fields in Northeast Bulgaria by means of tectonic fracture patterns and physical anisotropy of rock species from the Lower Cretaceous period up to the Upper Pliocene shows that in the investigated area exists a stable trend towards a clockwise rotati on of the maximum and minimum compress ion axes.
openaire   +1 more source

SEISMICITY AND TECTONIC STRESS FIELD IN THE KANSAI DISTRICT, SOUTHWEST JAPAN

, 1973
The seismic activity and its relation to the tectonic stress field in the Kansai area, Southwesta an were discussed.Spacial distribution and focal mechanisms of large, small and micro earthquakes coincidentallysuggest that the Kansai area is mainly in a ...
岸本, 兆方
core  

Models of stress at mid-ocean ridges and their offsets [PDF]

, 2000
This thesis aims to investigate the stresses at mid-ocean ridge offsets, and particularly at the particular class of offsets represented by oceanic microplates. Amongthese, the Easter microplate is one of the best surveyed.
Neves, Maria C., Neves, M.C.
core  

Tectonic stress field characteristics in Wushi, Xinjiang, and the stress impact of the M 7.1 Wushi earthquake

Dizhi lixue xuebao
Objective  The Wushi region in Xinjiang is located at the intersection of multiple tectonic units, characterized by frequent tectonic activity, making it a critical region for stress concentration and release.
SONG Zeyao, WAN Yongge, GU Peiyuan, ZHOU Mingyue   +3 more
doaj   +1 more source

Simulation of a Multi-Stage Stress Field and Regional Prediction of Structural Fractures in the Tucheng Syncline, Western Guizhou, China

Geosciences
The prediction of structural fractures in concealed coal-bearing strata has always been a complex problem. The purpose of this study was to clarify the tectonic evolution of the study area, i.e., the Tucheng syncline, since the coal-forming period and to
Jilin Wang, Lijun Jiang, Tiancheng Cang, Xiaozhi Zhou, Bicong Wang   +4 more
doaj   +1 more source

Data and geodetic modelling results for Science article "Fracturing and tectonic stress drives ultra-rapid magma flow into dikes"

Input data and geodetic models for Science article: Fracturing and tectonic stress drives ultra-rapid magma flow into ...
Sigrún Hreinsdóttir, Michelle Parks, Hildur M. Friðriksdóttir, Andrew.J.Hooper, Benedikt Ófeigsson, Sonja H. M. Greiner, Kristín S. Vogfjörd, Valentyn Tolpekin, Yilin Yang, Chiara Lanzi, Halldór Geirsson, Vincent Drouin   +11 more
core   +2 more sources

Tectonic stress magnitudes in an intraplate area: El Berrocal massif, southern boundary of the Spanish Central System

, 2002
Stress magnitudes throughout a NW-SE cross-section in El Berrocal granitic massif (Spanish Central System) have been analysed by means of finite element modelling.
Martín Velázquez, Silvia, Vela, A., Vicente, Gerardo de, Elorza, F. J., Muñoz Martín, Alfonso   +4 more
core  

Research on quantitative prediction method of structural fractures in metamorphic rock reservoirs

Scientific Reports
Deeply buried hill reservoirs have experienced tectonic movement during different periods, and tectonic fractures are well developed in metamorphic reservoirs, making quantitative characterization and spatial distribution prediction of fractures more ...
Qinghong Yang, Qi Cheng, Guanjie Zhang, Xinwu Liao, Ning Shi, Lei Zhang, Xiang Wang, Wenchao Liu, Jingshou Liu   +8 more
doaj   +1 more source

Multiple Linear Regression Inversion of the Ground Stress Field in Rock Masses for Tunnel Engineering: A Novel Approach to Stress Field Reconstruction

Buildings
The inversion of the ground stress field in rock masses is critical for accurate tunnel and underground engineering design. This study addresses the challenge of accurately capturing both the primary and secondary stress field components in rock masses ...
Wei Meng, Hongyang Zhou, Chun Luo, Shuai Qin, Xuefu Zhang, Binke Chen   +5 more
doaj   +1 more source

Crustal fault reactivation facilitating lithospheric folding/buckling in the central Indian Ocean

, 1996
High-quality, normal-incidence seismic reflection data confirm that tectonic deformation in the central Indian Ocean occurs at two spatial scales: whole lithosphere folding with wavelengths varying between 100 and 300 km, and compressional reactivation ...
Beekman, F., Cloetingh, S., Bull, Jonathan M., Scrutton, R.A.   +3 more
core   +1 more source