Results 21 to 30 of about 1,810,394 (132)

Geological factors and fracture distribution in deep and ultra-deep sandstones in Kuqa Depression, Tarim Basin, China [PDF]

open access: yesSolid Earth
Deep (> 4500 m) and ultra-deep (> 6000 m) sandstone reservoirs hold great potential for hydrocarbon resources, yet complex geological challenges hinder the successful exploitation of oil and gas.
Y. Su   +11 more
doaj   +1 more source

THE CENOZOIC CRUSTAL STRESS STATE OF MONGOLIA ACCORDING TO GEOLOGICAL AND STRUCTURAL DATA (REVIEW)

open access: yesГеодинамика и тектонофизика, 2020
This article gives a chronological review of the main published research results concerning the Cenozoic crustal stress-strain state in Mongolia and adjacent territories.
V. A. Sankov, A. V. Parfeevets
doaj   +1 more source

Neogene to Present paleostress field in Eastern Iran (Sistan belt) and implication for regional geodynamics [PDF]

open access: yesTectonics, 2017
We conducted a stress field analysis of the northern part of the ~700 km long north-southtrending, seismically active Sistan orogenic belt of Eastern Iran formed as a result of the closure of abranch of the Neo-Tethys during the early Cenozoic. Fault kinematic data reveal drastic changes in the stressregime of Eastern Iran during the late Cenozoic, with
Jentzer, Michael   +5 more
openaire   +2 more sources

Temporal changes in the internal stresses and pore pressures in a large-scale submarine mass transport deposit

open access: yesProgress in Earth and Planetary Science, 2018
We examined the temporal changes in the internal stresses and pore fluid pressures of a submarine mass transport deposit (MTD) in the Akkeshi Formation of the Upper Cretaceous–Paleocene Nemuro Group, eastern Hokkaido Island, Japan.
Makoto Otsubo   +2 more
doaj   +1 more source

Fracture network, fluid pathways and paleostress at the Tolhuaca geothermal field

open access: yesJournal of Structural Geology, 2017
Abstract In this study, we examine the fracture network of the Tolhuaca geothermal system located in the Southern Andean volcanic zone that may have acted as a pathway for migration and ascent of deep-seated fluids under the far/local stress field conditions of the area.
Pamela Pérez-Flores   +5 more
openaire   +4 more sources

Stress Field Evolution of the Southernmost Andean Cordillera From Paleostress Analysis (Argentine Tierra del Fuego) [PDF]

open access: yesTectonics, 2019
Abstract The Argentine Tierra del Fuego comprises part of the roughly east‐west trending southern end of the Andean Cordillera intensely deformed since the Mesozoic. Mesostructures have been measured in Late Jurassic to Miocene rocks.
A. Maestro   +9 more
openaire   +5 more sources

The local fields of paleostress of the Chornahora and Burkut nappes of the Ukrainian Carpathians [PDF]

open access: yes, 2009
Розглянуто мезоструктурні парагенезиси Чорногірського, Буркутського та частково Свидовецького покривів у середній течії р. Чорна Тиса (Українські Карпати).
Гайдук, Т.
core   +1 more source

Optimization method for predicting coal reservoir fractures in the Laochang area of Eastern Yunnan using paleotectonic stress inversion

open access: yesFrontiers in Earth Science
IntroductionCoal reservoir fractures serve as critical storage spaces and migration pathways for coalbed methane (CBM), significantly influencing CBM enrichment. The characteristics of coal reservoir fracture development can be obtained using traditional
Changwu Wu   +8 more
doaj   +1 more source

Tectonic history of paleostress from calcite twins in the Joseon and Pyeongan Supergroups, South Korea [PDF]

open access: yes, 2006
The purpose of this study is to clarify paleostress in the Joseon and Pyeongan Supergroups distributed in the northeastern part of the Ogcheon belt of South Korea and to infer the tectonic evolution of paleostress ...
Obara, Yuzo   +6 more
core   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

open access: yesGeological 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

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