Results 11 to 20 of about 2,793,105 (151)

Main controlling factors of natural fractures in tight reservoirs of the lucaogou formation in the jimsar sag, Xinjiang, China

open access: yesFrontiers in Earth Science, 2023
Natural fractures act as critical flow channels and reservoir space in the Lucaogou Formation tight reservoir of the Jimsar Sag. It is essential to identify the main controlling factors of natural fractures in order to achieve efficient development of ...
Yixin Yu   +6 more
doaj   +1 more source

The coulomb stress changes for correlation analysis of tectonic earthquake activity and volcanic of the 2001–2010 Merapi eruption based on focal mechanism data

open access: yesKuwait Journal of Science, 2023
The incident of increased seismic activity of the Merapi volcano was initiated by several tectonic earthquake phenomena. Analysis of the mechanism of tectonic earthquakes can be studied based on the combination of static stress on the rock.
Fitri Puspasari, Wahyudi
doaj   +1 more source

Present-day stress orientations and tectonic provinces of the NW Borneo collisional margin [PDF]

open access: yes, 2010
Extent: 15p.Borehole failure observed on image and dipmeter logs from 55 petroleum wells across the NW Borneo collisional margin were used to determine maximum horizontal stress (σH) orientations; combined with seismic and outcrop data, they define seven
Richard R. Hillis   +10 more
core   +1 more source

Tectonic stress: Models and magnitudes [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 1980
The combination of plate tectonic models of intraplate stress and observations of the directions of principal midplate stresses provides two types of constraints on the magnitude of deviatoric stress in the lithosphere. First, the fit of global tectonic stress models to observations can constrain stress magnitudes if the magnitude of one of the ...
Sean C. Solomon   +2 more
openaire   +1 more source

Investigation of Magnetohydrodynamics Technology and It's Application in Tension Drain [PDF]

open access: yesفناوری در مهندسی هوافضا, 2020
The purpose of this paper is to investigate the magnetohydrodynamics technology in creating artificial earthquakes. For this purpose, the possibility of expressing the electronegative mechanism for artificial earthquakes is first discussed.
Fathollah Ommi, Kouros Nekoufar
doaj  

Geomorphological insight into changing tectonic regime, Pasinler Basin, Turkey [PDF]

open access: yes, 2008
The Pasinler Basin, in the East Anatolian Contractional Province, features a suite of geomorphological zones, visible in the field, air photographs and Landsat and SRTM DEM imagery. These zones reflect past and current tectonically influenced processes.
Rust, DJ   +5 more
core   +1 more source

Analysis of the Coal and Gas Outburst Mechanism from the Perspective of Tectonic Movement

open access: yesGeofluids, 2021
Coal and gas outburst is the extreme instability caused by stress, gas, and coal. In this review article, dominant factors and inducing factors of outburst were summarized; geologic features of typical outburst cases and the effects of tectonic movement ...
Qingyi Tu   +4 more
doaj   +1 more source

Observation of local tectonic movements by a quartz-tube extensometer in the Sopronbánfalva Geodynamic Observatory, in Hungary–Validation of extensometric data by tidal analysis and simultaneous radon concentration measurements [PDF]

open access: yes, 2012
In 1990 a quartz tube extensometer was installed in the Sopronbánfalva Geodynamic Observatory (SGO) of the Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences. On the basis of the 20 year data series, an average strain rate
Mentes, Gyula
core   +1 more source

The Application of a Sonic Probe Extensometer for the Detection of Rock Salt Flow Field in Underground Convergence Monitoring

open access: yesSensors, 2021
Special regulations have been laid down to establish the principles and requirements for the safety and serviceability of old mining workings which are adapted for tourism.
Zbigniew Szczerbowski   +1 more
doaj   +1 more source

Tectonic discrimination diagrams revisited [PDF]

open access: yes, 2006
The decision boundaries of most tectonic discrimination diagrams are drawn by eye. Discriminant analysis is a statistically more rigorous way to determine the tectonic affinity of oceanic basalts based on their bulk-rock chemistry.
Vermeesch, P, Pieter Vermeesch
core   +1 more source

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