Results 41 to 50 of about 87,357 (239)

Asymmetric continental deformation during South Atlantic rifting along southern Brazil and Namibia [PDF]

, 2017
Plate restoration of South America and Africa to their pre-breakup position faces the problem of gaps and overlaps between the continents, an issue commonly solved with implementing intra-plate deformation zones within South America.
Koehn, Daniel, Passchier, Cees, Salomon, Eric   +2 more
core   +1 more source

The Jabal Akhdar Dome in the Oman Mountains : evolution of a dynamic fracture system [PDF]

, 2014
Acknowledgments: This study was carried out within the framework of DGMK (German Society for Petroleum and Coal Science and Technology) research project 718 “Mineral Vein Dynamics Modelling,” which is funded by the companies ExxonMobil Production ...
Arndt, M., Blum, P., Bons, P. D., Gomez Rivas, E., Koehn, D., Laurich, B., Stark, L., Urai, J. L., Virgo, S., Zeeb, C.   +9 more
core   +2 more sources

Evolution of structures and hydrothermal alteration in a Palaeoproterozoic supracrustal belt: Constraining paired deformation–fluid flow events in an Fe and Cu–Au prospective terrain in northern Sweden [PDF]

Solid Earth, 2020
An approximately 90 km long Palaeoproterozoic supracrustal belt in the northwestern Norrbotten ore province (northernmost Sweden) was investigated to characterize its structural components, assess hydrothermal alteration–structural geology ...
J. B. H. Andersson, T. E. Bauer, E. P. Lynch   +2 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

Numerical investigation of casing shear deformation due to fracture/fault slip during hydraulic fracturing

Energy Science & Engineering, 2020
The frequent occurrence of casing failure has significantly affected the development of shale gas in the Sichuan Basin. Based on engineering and geology analyses, natural fracture/fault slip leads to casing shear deformation during hydraulic fracturing ...
Hu Meng, Hongkui Ge, Dengwei Fu, Xiaoqiong Wang, Yinghao Shen, Zhenxin Jiang, Jianbo Wang   +6 more
doaj   +1 more source

Anomalously old biotite ⁴⁰Ar/³⁹Ar ages in the NW Himalaya [PDF]

, 2017
Biotite 40Ar/39Ar ages older than corresponding muscovite 40Ar/39Ar ages, contrary to the diffusion properties of these minerals, are common in the Himalaya and other metamorphic regions.
Grujic, Djordje, Kleeberg, Reinhard, Pfänder, Jörg, Ratschbacher, Lothar, Sperner, Blanka, Stübner, Konstanze, Warren, Clare   +6 more
core   +1 more source

Active megadetachment beneath the western United States [PDF]

, 2008
Geodetic data, interpreted in light of seismic imaging, seismicity, xenolith studies, and the late Quaternary geologic history of the northern Great Basin, suggest that a subcontinental-scale extensional detachment is localized near the Moho.
Allmendinger, Anders, Axen, Beaumont, Beghoul, Bell, Bell, Bennett, Bennett, Bennett, Bergman, Bergman, Berthe, Bills, Block, Brace, Brian Wernicke, Brodie, Brodie, Brodie, Buck, Buck, Burchfiel, Caskey, Catchings, Christiansen, Christiansen, Cook, Davis, Davis, Davis, DeCelles, Demouchy, dePolo, Dixon, Dokka, Dragert, Ducea, Ducea, Dueker, Dumond, Elósegui, England, England, Flack, Flesch, Flesch, Fountain, Fountain, Frankel, Freed, Friedrich, Friedrich, Gan, Gashawbeza, Glazner, Goetze, Gourmelen, Gripp, Gripp, Hales, Hammond, Hammond, Hauge, Hauser, Hetland, Hey, Hey, Hirth, Hobbs, Hobbs, Holbrook, Holbrook, Humphreys, Humphreys, Humphreys, Jackson, James L. Davis, Jarchow, Jones, Jordan, Katayama, Kelemen, Klemperer, Klemperer, Kostoglodov, Kruse, Lachenbruch, Le Pourhiet, Lee, Lerch, Liu, Louie, Lowry, Lowry, Lowry, Luedke, Machette, Maggi, McGeary, McKenzie, McKenzie, McQuarrie, Melbourne, Melbourne, Miller, Miller, Molnar, Nathan A. Niemi, Niemi, Okada, Oldow, Oldow, Oldow, Pancha, Park, Parsons, Passchier, Peter Luffi, Pollitz, Potter, Regenauer-Lieb, Regenauer-Lieb, Reheis, Reston, Roy, Rutter, Saleeby, Saltzer, Savage, Schellart, Schellart, Silver, Silver, Smith, Smith, Smith, Smith, Snoke, Sonder, Sonder, Sonder, Stewart, Suetnova, Sunil Bisnath, Suppe, Taber, Tapponnier, Thatcher, Thatcher, Thompson, Thompson, Usui, Waite, Walker, Wallace, Wallace, Wang, Watts, Weinberg, Wernicke, Wernicke, Wernicke, Wernicke, Wernicke, Wesnousky, Wesnousky, Wesnousky, Wilson, York, Zandt, Zandt, Zandt   +172 more
core   +2 more sources

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

Emplacement of sandstone intrusions during contractional tectonics [PDF]

, 2016
Acknowledgments We acknowledge the support of sponsoring companies of Phase 3 of the Sand Injection Research Group (SIRG). We are very grateful to John Waldron and Jessica Ross for the constructive reviews of the manuscript.
Alsop, G. Ian, Bureau, Denis, Grippa, Antonio, Hurst, Andrew, Palladino, Giuseppe   +4 more
core   +1 more source

Minerals in Afghanistan : the potential for copper [PDF]

, 2006
There are around 300 documented copper deposits, occurrences and showings in Afghanistan as shown in Figure 1. A variety of styles of copper mineralisation occur in rocks ranging in age from Proterozoic to Neogene.
Benham, Antony John, Coats, Stan
core