Results 71 to 80 of about 2,793,105 (151)

Defining the Relationship between Seismicity and Deformation at Regional and Local Scales [PDF]

open access: yes, 2013
In this thesis, I use source inversion methods to improve understanding of crustal deformation along the Nyainquentanglha (NQTL) Detachment in Southern Tibet and the Piceance Basin in northwestern Colorado.
Williams, Nneka Njeri Akosua
core   +1 more source

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

open access: yes, 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.   +3 more
core   +1 more source

Seismicity of the Noto Peninsula: Spatial Patterns, Shallow Seismic Zones, and Possible Volcano-Related Signals

open access: yesTrends in Ecological and Indoor Environmental Engineering
Background: Japan's complex tectonic setting produces intense seismicity, yet reliable earthquake prediction remains unresolved. Recent data-driven approaches suggest that classical models may be insufficient, highlighting the value of exploratory ...
Tomokazu Konishi
doaj   +1 more source

Theoretical research advances and applications of the dynamic metamorphism of coals

open access: yesMeitian dizhi yu kantan
BackgroundThe dynamic metamorphism of coals, a significant type of coal metamorphism, represents a fundamental research topic of coal geology. The research achievements have been widely applied in fields such as coal resource evaluation, the prevention ...
Hewu LIU   +7 more
doaj   +1 more source

Tectonic stability of the Nanpu sag: Evidence from temporal and spatial characteristics of seismic activity

open access: yesDizhi lixue xuebao
Objective  The evaluation of regional tectonic stability plays a crucial role in the planning and construction of major projects. Given that the Nanpu sag is the site for China's first offshore gas storage facility, its tectonic stability is naturally a ...
ZHANG Yang   +4 more
doaj   +1 more source

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319

open access: yes, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Ito, Takatoshi   +21 more
core   +1 more source

Valuation method for sub-indicators of rock burst risk based on mining depth and tectonic stress

open access: yesMeitan kexue jishu
The mechanical properties of deep rocks differ from those of the shallow layers due to the complex environment. Rock burst disasters are often induced under the disturbance of coal mining.
Zhen LI   +7 more
doaj   +1 more source

Detrital zircon record and tectonic setting [PDF]

open access: yes, 2012
Funding: University of St AndrewsDetrital zircon spectra reflect the tectonic setting of the basin in which they are deposited. Convergent plate margins are characterized by a large proportion of zircon ages close to the depositional age of the sediment,
Hawkesworth, Chris   +5 more
core   +1 more source

Neotectonic deformation features in plio-pleistocene coastal aeolianites: palaeoseismology and earthquake hazard implications for the Southern Cape, South Africa [PDF]

open access: yes, 2013
Deformation features within Plio-Pleistocene Bredasdorp Group coastal aeolianites within the Southern Cape, South Africa, have been studied to resolve the neotectonic history of the region, estimate the recent to current upper-crustal stress field, and ...
Hodge, Matthew Sotheron
core   +1 more source

Petrologic evidence for earliest Miocene tectonic mobility on eastern Taranaki Basin margin [PDF]

open access: yes, 2006
At Gibsons Beach on the west coast of central North Island, the earliest Miocene (Waitakian) Otorohanga Limestone, the top-most formation in the Te Kuiti Group, is unconformably overlain on an undulating, locally channelised erosion surface by the Early ...
Nelson, Campbell S.   +3 more
core  

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