Results 21 to 30 of about 83,284 (304)

Geology, Great Slave Lake Shear Zone, Northwest Territories

, 1988
S Hanmer
openaire   +2 more sources

Evidence from Rb–Sr mineral ages for multiple orogenic events in the Caledonides of Shetland, Scotland [PDF]

, 2015
Shetland occupies a unique central location within the North Atlantic Caledonides. Thirty-three new high-precision Rb–Sr mineral ages indicate a polyorogenic history.
Bird, A. F., Strachan, R. A., Thirlwall, M. F., Walker, S.   +3 more
core   +3 more sources

Indosinian high-strain deformation for the Yunkaidashan tectonic belt, south China : Kinematics and 40Ar/39Ar geochronological constraints [PDF]

, 2007
Structural and 40Ar/39Ar data from the Yunkaidashan Belt document kinematic and tectonothermal characteristics of early Mesozoic Indosinian orogenesis in the southern part of the South China Block.
Bureau of Geology and Mineral Resources of Guangdong Province (GDBGMR), Bureau of Geology and Mineral Resources of Guangxi Zhuang Autonomous Region (GXBGMR), Bureau of Geology and Mineral Resources of Jiangxi Province (JXBGMR), Cai, Carter, Cawood, Cawood, Cawood, Chen, Chen, Chen, Chen, Cobbold, Cruden, Deng, Deprat, Ding, Dodson, Ellis, Engebretson, Faure, Fromaget, Goodel, Gradstein, Guo, Hacker, Hames, Harrison, Hodges, Holloway, Hsû, Huang, Hunan Bureau of Geology and Mineral Resources (HNBGMR), Konopásek, Law, Lepvrier, Li, Li, Li, Li, Liang, Liang, Lin, Liu, Lo, Metcalfe, Metcalfe, Monir, Peng, Peng, Peng, Peng, Peter A. Cawood, Purdy, Qiu, Ren, Richard, Sang, Shaocheng Ji, Stevens, Thompson, Touping Peng, Tullis, Twiss, Veevers, Veevers, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Wang, Weiming Fan, Willett, Woodcock, Xinyue Chen, Xu, Xu, Xu, Yan, Yardley, Yuan, Yuejun Wang, Zhang, Zhong, Zhong, Zhou, Zhou, Zhu   +90 more
core   +1 more source

Stress concentrations around voids in three dimensions : The roots of failure [PDF]

, 2017
Funding This work forms part of a NERC New Investigator award for DH (NE/I001743/1), which is gratefully acknowledged. Acknowledgments The authors would like to acknowledge the reviewers, Elizabeth Ritz and Phillip Resor.
Bubeck, A., Davis, T., Healy, D., Walker, R.   +3 more
core   +1 more source

Carbonate alteration of ophiolitic rocks in the Arabian–Nubian Shield of Egypt: sources and compositions of the carbonating fluid and implications for the formation of Au deposits [PDF]

, 2016
Ultramafic portions of ophiolitic fragments in the Arabian–Nubian Shield (ANS) show pervasive carbonate alteration forming various degrees of carbonated serpentinites and listvenitic rocks.
Azer, Mokhles K., Boskabadi, Arman, Boyce, Adrian, Broman, Curt, Cooper, Matthew J., Majka, Jaroslaw, Mohamed, Fathy H., Pitcairn, Iain K., Stern, Robert J., Teagle, Damon A.H.   +9 more
core   +2 more sources

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

Contrasting stress fields on correlating margins of the South Atlantic [PDF]

, 2015
The “passiveness” of passive continental margins across the globe is currently under debate since several studies have shown that these margins may experience a variety of stress states and undergo significant vertical movement post-breakup.
Glasmacher, Ulrich Anton, Hackspacher, Christian Peter, Koehn, Daniel, Passcier, Cees, Salomon, Eric   +4 more
core   +1 more source

Permeability evolution during progressive development of deformation bands in porous sandstones [PDF]

, 2003
[1] Triaxial deformation experiments were carried out on large (0.1 m) diameter cores of a porous sandstone in order to investigate the evolution of bulk sample permeability as a function of axial strain and effective confining pressure.
Antonellini, Antonellini, Aydin, Aydin, B. T. Ngwenya, Beach, Bruno, Caine, Crawford, Evans, Fowles, Gibson, Grueschow, Hippler, I. G. Main, Jamison, Knipe, Knipe, Knott, Main, Main, Main, Mair, Mair, Manzocchi, Menendez, Moore, Ngwenya, Ngwenya, Ngwenya, O. Kwon, Ogilvie, Popp, Ramsay, Rhett, Rojstaczer, Rudnicki, S. C. Elphick, Scholz, Scott, Shipton, Sibson, Sverdrup, Taylor, Tuefel, Underhill, Wong, Zang, Zhang, Zhu, Zhu, Zoback   +51 more
core   +2 more sources

A compilation of the geology and measured and estimated shear-wave velocity profiles at strong-motion stations that recorded the Loma Prieta, California, earthquake [PDF]

Open-File Report, 1991
T. E. Fumal
openaire   +3 more sources

Direct dating of mid-crustal shear zones with synkinematic allanite:new in situ U-Th-Pb geochronological approaches applied to the Mont Blanc massif [PDF]

, 2013
International audienceDating the timing of motion on crustal shear zones is of tremendous importance for understanding the assembly of orogenic terranes.
Cenki-tok, Benedicte, Darling, James, Dhuime, Bruno, Rolland, Yann, Storey, Craig   +4 more
core   +3 more sources