Results 51 to 60 of about 66,593 (275)

Investigation on hard‐rock breaking performance and auxiliary mechanism of picks assisted with both‐sided high‐pressure water jets

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu   +6 more
wiley   +1 more source

A slab in depth: Three‐dimensional geometry and evolution of the Indo‐Australian plate

open access: yesGeochemistry, Geophysics, Geosystems, 2007
Geoscientists use plate tectonics to explain many aspects of both continental evolution and evolution of the planet as a whole. The subduction of material at convergent plate boundaries forms a fundamental component to the theory of plate tectonics ...
Simon Richards   +2 more
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
Agostinelli   +73 more
core   +2 more sources

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

open access: yesDeep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski   +4 more
wiley   +1 more source

Development of thermal state and plate tectonics in the North China Craton during Neoarchean–Paleoproterozoic

open access: yesCommunications Earth & Environment
Although the early tectonic regime of the Earth remains debated, it is generally accepted that the geodynamic system underwent a notable transition during the Neoarchean–Paleoproterozoic.
Xiangqiao Han   +4 more
doaj   +1 more source

Preface to the Special Issue on "Geodynamics of Taiwan and the Philippines"

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2015
This special issue contains a collection of six papers dealing with the geology, geophysics, and tectonics of Taiwan and the Philippines. Most of these papers were presented at the fourth _ Earth Sciences International _ in Manila, Philippines, 8 - 9 ...
Win-Bin Cheng and Shou-Yeh Gong
doaj   +1 more source

Diversification and biogeography of Rhacophoridae – a model testing approach

open access: yesFrontiers in Ecology and Evolution, 2023
A central focus of evolutionary biology is to understand species diversity by studying how they arrived at their current geographic distributions. The biogeography of the Old World tree frogs in the family Rhacophoridae has been extensively studied ...
Gajaba Ellepola   +2 more
doaj   +1 more source

Accretionary Tectonics of the North American Cordillera [PDF]

open access: yes, 1983
Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core   +2 more sources

Failure characteristics analysis of the inclined interlayer during water‐soluble cavity construction of underground salt caverns for large‐scale energy storage

open access: yesDeep Underground Science and Engineering, EarlyView.
In the process of water‐soluble cavern construction of salt cavern energy storage, since the interlayer does not dissolve in water easily, sudden collapse will cause engineering accidents such as bending and damage of the inner tube of the cavern.
Zenghui Zhao   +5 more
wiley   +1 more source

Regarding the discussion about the banded magnetic anomalies of the oceans

open access: yesГеофизический журнал
The author supports the theory of plate tectonics with a plume component, pointing out the weak aspects of the arguments regarding the banded magnetic anomalies (BMA) of the ocean floor, which are the subject of discussions between supporters and ...
O.B. Gintov
doaj   +1 more source

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