Results 51 to 60 of about 39,465 (265)

Fluvial and tectonic geomorphology of orogenic plateaux [PDF]

open access: yes, 2013
Geomorphology is an expression of processes acting upon an area. The links between driving processes and the resulting geomorphology are far from being fully understood.
SAVILLE, CHRISTOPHER
core  

Deconstructing-Plate-Tectonic-Reconstructions

open access: yes, 2023
Initial version, will require updating once final publication details are available This repository contains code to reproduce figures and animations associated with the manuscript Deconstructing plate tectonic reconstructions, authors Seton, Williams ...
Domeier, Mathew   +9 more
core   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

open access: yesDeep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang   +5 more
wiley   +1 more source

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

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

Generalized Matsuoka–Nakai criterion considering hydrostatic pressure dependence in the brittle–ductile region

open access: yesDeep Underground Science and Engineering, EarlyView.
Three sets of strength data were selected, including hydrostatic pressure independent within the brittle region (HPI‐B), hydrostatic pressure dependent within the brittle region (HPD‐B), and hydrostatic pressure dependent within the brittle–ductile region (HPD‐BD). For HPI type, the failure envelope within the deviatoric plane remains constant.
Jiacun Liu   +3 more
wiley   +1 more source

Basic characteristics of coalfield tectonic framework in China

open access: yes矿业科学学报, 2016
The occurrence of coal-bearing strata in China is characterized by the variety of coal-bearing basins,the remarkable spatial and temporal differences of late tectonic deformations.The main controlling factors,which determine the tectonic framework of ...
Cao Daiyong   +7 more
doaj  

Characteristics of geological evolution based on the multifractal singularity theory: A case study of Heyu granite and Mesozoic tectonics

open access: yesOpen Geosciences
Tectonic movement and magmatic activity are complex geological processes resulting from the interaction of multiple factors. These processes are often characterized by local singularities with nonlinear characteristics.
Dong Wenchao   +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

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

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

Numerical modeling of subduction and evaluation of Philippine Sea Plate tectonic history along the Nankai Trough

open access: yesScientific Reports, 2023
The subduction of the Philippine Sea (PHS) plate along the Nankai Trough in in southwest Japan is a relatively recent process compared with subduction along the Japan Trench in northeast Japan.
E. J. Moreno   +5 more
doaj   +1 more source

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