Results 81 to 90 of about 84,535 (249)

Non-linear properties of supercooled liquids in the system Na2O---SiO2 [PDF]

, 1994
The physical properties, viscosity, density, heat capacity and thermal expansivity, of relaxed supercooled liquids in the temperature range just above the glass transition have been determined for ten compositions along the compositional binary Na2O ...
Dingwell, Donald B., Knoche, Ruth, Seifert, Friedrich, Webb, Sharon L.   +3 more
core   +1 more source

Structural geometry and gold ores along the first outlined N–S dextral shear zone in the Egyptian Nubian Shield, East African orogenic belt: New insights from integrated remote sensing, gravity, magnetic and field studies

Geomechanics and Geophysics for Geo-Energy and Geo-Resources
This study outlines the newly identified N–S dextral shear zone within the Egyptian Nubian Shield. The N–S Shear Zone (600–590 Ma) is a significant north-trending geological feature in the Egyptian Nubian Shield, extending over 140 km in length and ...
Mohamed A. Abd El‑Wahed, Samir Kamh, Mohamed Attia, Ahmed M. Eldosouky   +3 more
doaj   +1 more source

Episodic Lithospheric Deformation in Eastern Tibet Inferred From Seismic Anisotropy

Geophysical Research Letters, 2020
Mechanisms for uplift and deformation of the Tibetan Plateau remain vigorously debated; hypotheses include stepwise growth, distributed thickening, and crustal channel flow, each with a distinct anisotropic signature.
Xuewei Bao, Xiaodong Song, David W. Eaton, Yixian Xu, Hanlin Chen   +4 more
doaj   +1 more source

Criteria for rapid sliding I.: a review of Vaiont case [PDF]

, 2010
Vaiont slide has been represented by a model of two interacting evolutive wedges. Mass conservation during the motion implies that the upper wedge transfers mass to the lower one through an internal shearing plane.
Alonso Pérez de Agreda, Eduardo, Pinyol Puigmartí, Núria Mercè   +1 more
core   +2 more sources

PAVLO STEFANOVICH VORONOV — OUTSTANDING POLAR GEOLOGIST (to the 100th anniversary of birth)

Геологія і корисні копалини Світового океану, 2020
The article is dedicated to the outstanding geologist-polar explorer of the USSR, an outstanding naturalist, doctor of geological and mineralogical sciences, Professor Pavel Voronov in the light of 100th anniversary of his birth celebration.
N.N. Shatalov
doaj   +1 more source

Deformation of continental crust along a transform boundary, Coast Mountains, British Columbia [PDF]

, 2010
New structural, paleomagnetic, and apatite (U-Th)/He results from the continental margin inboard of the Queen Charlotte fault (~54°N) delineate patterns of brittle faulting linked to transform development since ~50 Ma.
Bogue, Scott W., Dodson, Karen, Farley, Kenneth A., Rusmore, Margaret E., Woodsworth, Glenn J.   +4 more
core   +1 more source

Progress and development of volume stimulation techniques

Petroleum Exploration and Development, 2018
Based on the theoretical study and field application of volume stimulation in horizontal wells over the past 10 years, the core connotation of volume stimulation was further interpreted.
Yun XU, Qun LEI, Ming CHEN, Qi WU, Nengyu YANG, Dingwei WENG, Deqi LI, Hao JIANG   +7 more
doaj   +1 more source

Frictional Instabilities and Carbonation of Basalts Triggered by Injection of Pressurized H2O- and CO2- Rich Fluids [PDF]

, 2018
The safe application of geological carbon storage depends also on the seismic hazard associated with fluid injection. In this regard, we performed friction experiments using a rotary shear apparatus on precut basalts with variable degree of hydrothermal ...
Andrea, Marzoli, Elena, Spagnuolo, Francois, Passelegue, Giacomel, Piercarlo, Giulio Di Toro,, Nasrrddine, Youbi, Nazzari, Manuela   +6 more
core   +1 more source

Comparison of Seismic Site Factor Models Based on Equivalent Linear and Nonlinear Analyses and Correction Factors for Updating Equivalent Linear Results for Charleston, South Carolina

Geosciences
In practice, site-specific one-dimensional (1D) seismic site response analyses are conducted to compute surface acceleration time histories considering shear wave velocity profile, modulus reduction, damping, and site-specific ground motions.
Nadarajah Ravichandran, Md. Ariful H. Bhuiyan, Vishnu Saketh Jella, Ashish Bahuguna, Jatheesan Sundararajan   +4 more
doaj   +1 more source

Scale-dependence of lithological control on topography: Bedrock channel geometry and catchment morphometry in western Scotland [PDF]

, 2010
We propose that a scale-dependent topographic signature of erodibility arises due to fluvial and glacial erosion acting on different parts of the landscape at different times.
Bishop, P., Codilean, A.T., Hoey, T.B., Jansen, J.D.   +3 more
core   +3 more sources