Results 71 to 80 of about 87,357 (239)

Shear deformation of fold structures in coal measure strata and coal-gas outbursts: Constraint and mechanism

Energy Exploration & Exploitation, 2018
The coal measure strata formed in the late Paleozoic era underwent tectonic movements on several occasions, leading to the development of a range of fold structures in the strata as a result of highly interlayered gliding and shearing deformation.
Tianrang Jia, Zhendong Feng, Guoying Wei, Yiwen Ju   +3 more
doaj   +1 more source

Determination of surface shear stress with the naphthalene sublimation technique [PDF]

Aeolian entrainment and transport are functions of surface shear stress and particle characteristics. Measuring surface shear stress is difficult, however, where logarithmic wind profiles are not found, such as regions around large roughness elements. An
Greeley, Ronald, Lee, J. A.
core   +1 more source

New Theory of the Earth [PDF]

, 2007
New Theory of the Earth is an interdisciplinary advanced textbook on all aspects of the interior of the Earth and its origin, composition, and evolution: geophysics, geochemistry, dynamics, convection, mineralogy, volcanism, energetics and thermal ...
Anderson, Don L.
core   +2 more sources

Flood magnitude-frequency and lithologic control on bedrock river incision in post-orogenic terrain [PDF]

, 2006
Mixed bedrock-alluvial rivers - bedrock channels lined with a discontinuous alluvial cover - are key agents in the shaping of mountain belt topography by bedrock fluvial incision.
Annandale, Ashworth, Baker, Baker, Baker, Baker, Baker, Baker, Baldwin, Bathurst, Bathurst, Bathurst, Beaumont, Bierman, Brayshaw, Brierley, Buffington, Buffington, Bureau of Meteorology, Carling, Chin, Church, Cordery, Costa, Dietrich, Emmett, Feldman, Ferguson, Gale, Gasparini, Gibson, Gilbert, Gomez, Grant, Grant, Hack, Hack, Hancock, Hey, Hill, Hovius, Howard, Howard, Howard, Howard, Howard, Inderbitzen, Jackson, Jansen, Jarrett, John D. Jansen, Kieffer, Knighton, Knighton, Komar, Komar, Langbein, Mabbutt, MacQueen, Manning, Martin, Merritts, Miller, Miller, Miller, Molnar, Neef, O'Connor, Parker, Parker, Pazzaglia, Pickup, Pilgrim, Prestegaard, Rana, Raymo, Rhoads, Rice, Schick, Schoklitsch, Schumm, Seidl, Sklar, Sklar, Small, Snyder, Sternberg, Stock, Thompson, Tinkler, Tinkler, Troutman, Tucker, Tucker, van de Graaf, van der Beek, Veevers, Ward, Wende, Whipple, Whipple, Whipple, Whittaker, Wilford, Willet, Williams, Wohl, Wohl, Wohl, Wohl, Wolman, Wolman   +111 more
core   +1 more source

Evolving force balance during incipient subduction [PDF]

, 2004
Nearly half of all active subduction zones initiated during the Cenozoic. All subduction zones associated with active back arc extension have initiated since the Eocene, hinting that back arc extension may be intimately associated with an interval ...
Gurnis, Michael, Hall, Chad, Lavier, Luc
core   +1 more source

Editorial

Boletín Geológico, 2021
Boletín Geológico has published issue 48(1), June 2021, with articles on economic geology, structural geology, and basin evolution (Figure 1). Arrubla & Silva characterize and classify the gold ore mineral occurrences related to the main intrusive ...
Mario Maya Sánchez
doaj  

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

Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data [PDF]

, 2012
Peer ...
Bingham, Robert George, Corr, Hugh F.J., Ferraccioli, Fausto, Jordan, Tom A., Le Brocq, Anne M., Leat, Philip T., Rippin, David M., Ross, Neil, Siegert, Martin J.   +8 more
core   +1 more source

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