Results 31 to 40 of about 1,395 (184)

DEFORMATION REGIMES AND LOW-RANK PALEOTECTONIC STRESSES OF THE WESTERN TIAN SHAN IN THE MESOZOIC – CENOZOIC

open access: yesГеодинамика и тектонофизика, 2023
There is a description of the results of studies of deformation regimes and reconstruction of stress fields of certain time intervals of the Mesozoic – Cenozoic history of the western part of the Tien Shan based on the geological and structural data and ...
R. A. Umurzakov
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

Morphology of the Piip submarine volcano in the Komandorsky Basin based on multibeam echosounder data

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2021
We analyzed the bathymetric data obtained during the cruises on the German research vessel “Sonne” using multibeam echosounders within the framework of the Russian-German projects KALMAR (cruise SO201-2, 2009) and BERING (cruise SO249-2, 2016) in the ...
Баранов Б.В.   +4 more
doaj   +1 more source

Mesoscale fracture fabric and paleostress along the San Andreas fault at SAFOD [PDF]

open access: yes, 2009
Spot cores from Phase 1 drilling of the main borehole at the San Andreas Fault Observatory at Depth (SAFOD) were mapped to characterize the mesoscale structure and infer paleostress at depth.
Almeida, Rafael Vladimir
core   +3 more sources

Registro da deformação pós-paleozóica na Bacia do Amazonas, região de Itaituba (PA)

open access: yesBrazilian Journal of Geology
Resumo: A Bacia do Amazonas compreende uma área de aproximadamente 500.000 km2 abrangendo parte dos estados do Pará e Amazonas. A região estudada localiza-se na porção sudoeste da bacia, próximo à cidade de Itaituba (PA), e contém rochas da cobertura ...
Thais Borba Santos   +4 more
doaj   +1 more source

The contribution of remotely sensed data to the stress state evaluation in underground marble quarries

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2021
An in-depth knowledge of the geostructural characteristics of the territory is fundamental for optimizing the design of artificial structures.
Sabrina Maria Rita Bonetto   +5 more
doaj   +1 more source

Control of pre-existing fabric in fracture formation, reactivation and vein emplacement under variable fluid pressure conditions: an example from Archean greenstone belt, India [PDF]

open access: yesSolid Earth, 2020
Most of the upper crustal fluid flows are strongly influenced by the pre-existing fractures/foliations in the rocks under a certain state of tectonic stress and fluid pressure condition.
S. Bhowmick, T. K. Mondal
doaj   +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

Tectono‐Sedimentary Evolution of the Neogene İnegöl Basin (NW Anatolia): Constraints on Transtensional Basin Development at the Junction of the Western Anatolian Extensional Province and the North Anatolian Fault Zone

open access: yesGeological Journal, EarlyView.
The study outlines the tectono‐sedimentary evolution of the İnegöl Basin in north‐western Anatolia. Basin formation was controlled by interacting extensional and strike‐slip fault systems linked to uplift of the Uludağ Massif. Terrestrial sedimentation from the Miocene to Pleistocene is reconstructed using abundant fossil mammal assemblages that ...
M. Cihat Alçiçek   +2 more
wiley   +1 more source

Polyphase Tectonic Evolution of the Puerto Rico‐Virgin Islands Microplate Revealed by Fault‐Slip Data and Stress Inversions

open access: yesGeochemistry, Geophysics, Geosystems
The northeastern Caribbean plate boundary (NCPB) includes the Puerto Rico‐Virgin Islands (PRVI) microplate that is bounded by oblique subduction zones in the Muertos and Puerto Rico Trenches, and by the Mona Rift, and the Anegada Passage rifts.
Jean‐Claude Hippolyte, Paul Mann
doaj   +1 more source

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