Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Frances J. Cooper"'
1
Pluton Exhumation in the Precordillera of Northern Chile (17.8°–24.2°S):Implications for the Formation, Enrichment, and Preservation of Porphyry Copper Deposits
Autor: Simon I.R. Dahlström, Frances J. Cooper, Jon Blundy, Simon Tapster, Jaime Cortés Yáñez, Laura A. Evenstar
Publikováno v: Dahlström, S I R, Cooper, F J, Blundy, J D, Tapster, S, Cortes, J & Evenstar, L 2022, ' Pluton Exhumation in the Precordillera of Northern Chile (17.8°–24.2°S) : Implications for the Formation, Enrichment, and Preservation of Porphyry Copper Deposits ', Economic Geology, vol. 117, no. 5, pp. 1043-1071 . https://doi.org/10.5382/econgeo.4912
Hypogene mineralization in porphyry Cu deposits is typically associated with crustal thickening and rapid exhumation, whereas supergene enrichment requires slow exhumation to allow sufficient time for leaching and downward transport of Cu before it i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f43d1990fc9bbe5daf43b9d605b56387
https://hdl.handle.net/1983/f13ac9cc-b802-41b6-94cf-2126418d000b
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2
A Rusty Record of Weathering and Groundwater Movement in the Hyperarid Central Andes
Autor: Joe M Shaw, Kenneth A. Farley, Adrian J. Boyce, B. A. Adams, Frances J. Cooper, Laura Evenstar, Florian Hofmann
Publikováno v: Shaw, J M, Evenstar, L, Cooper, F J, Adams, B A, Boyce, A, Hofmann, F & Farley, K 2021, ' A rusty record of weathering and groundwater movement in the hyperarid Central Andes ', Geochemistry, Geophysics, Geosystems, vol. 22, no. 8, e2021GC009759 . https://doi.org/10.1029/2021GC009759
The Atacama Desert, on the western margin of the Central Andes, hosts some of the world's largest porphyry copper deposits (PCDs). Despite a hyperarid climate, many of these PCDs have undergone secondary “supergene” enrichment, whereby copper has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2826b206f3db46169573d58a15ae75d
https://resolver.caltech.edu/CaltechAUTHORS:20210809-194137903
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4
Fabrics, facies, and flow through a large-volume ignimbrite:Pampa De Oxaya, Chile
Autor: Frances J. Cooper, R. S. J. Sparks, Ellen Platzman
Publikováno v: Platzman, E, Sparks, R S J & Cooper, F J 2020, ' Fabrics, facies, and flow through a large-volume ignimbrite : Pampa De Oxaya, Chile ', Bulletin of Volcanology, vol. 82, no. 1, 8 . https://doi.org/10.1007/s00445-019-1345-2
The Miocene Oxaya Formation, exposed along the western Andean slope in northern Chile, represents one of the largest ignimbrite provinces on earth. In this study, magnetic fabric data were acquired from a ~ 1-km-long core drilled vertically through a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9e0d476610c544dc6695633c3c44491
https://research-information.bris.ac.uk/en/publications/97ae1271-607b-4199-9407-5660b3fca23a
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5
Rheological transitions in the middle crust: insights from Cordilleran metamorphic core complexes
Autor: Frances J. Cooper, Whitney M. Behr, John P. Platt
Publikováno v: Solid Earth, Vol 8, Iss 1, Pp 199-215 (2017)
Cooper, F J, Platt, J P & Behr, W M 2017, ' Rheological transitions in the middle crust : insights from Cordilleran metamorphic core complexes ', Solid Earth and Discussions, vol. 8, pp. 199-215 . https://doi.org/10.5194/se-8-199-2017
High-strain mylonitic rocks in Cordilleran metamorphic core complexes reflect ductile deformation in the middle crust, but in many examples it is unclear how these mylonites relate to the brittle detachments that overlie them. Field observations, mic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ade70d0a9535531ddd3d8f7b405278
http://www.solid-earth.net/8/199/2017/se-8-199-2017.pdf
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6
Aridity-induced Miocene canyon incision in the Central Andes
Autor: Ryan McKeon, Jon D Blundy, Kenneth A. Farley, Frances J. Cooper, Alberto Ruggiero, B. A. Adams
Publikováno v: Cooper, F J, Adams, B, Blundy, J, Farley, K, McKeon, R & Ruggiero, A 2016, ' Aridity-induced Miocene canyon incision in the Central Andes ', Geology, vol. 44, no. 8, G38254, pp. 675-678 . https://doi.org/10.1130/G38254.1
The relationship between the rise of the Andean mountain chain and the onset of aridity on its western margin is poorly understood. Canyon incision on both the eastern and western flanks of the chain is interpreted generally as a direct response to i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8237e316ff0854406357864d07c82254
https://doi.org/10.1130/g38254.1
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7
Early Miocene large-volume ignimbrites of the Oxaya Formation, Central Andes
Autor: M. E. van Zalinge, Daniel J. Condon, R. S. J. Sparks, Frances J. Cooper
Publikováno v: Van Zalinge, M E, Sparks, R S J, Cooper, F J & Condon, D J 2016, ' Early Miocene large-volume ignimbrites of the Oxaya Formation, Central Andes ', Journal of the Geological Society, vol. 173, no. 5, pp. 716-733 . https://doi.org/10.1144/jgs2015-123
During the early Miocene ignimbrite flare-up, significant parts of the Central Andes (17–20°S) were covered by large-volume ignimbrites. High-precision 206 Pb/ 238 U zircon dates constrain the flare-up in northern Chile at c. 18°S to a 3 myr peri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15b71c4a5baec84ce9e090947e1edea2
https://doi.org/10.1144/jgs2015-123
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8
Quaternary landscape evolution of the Helmand Basin, Afghanistan:insights from staircase terraces, deltas, and paleoshorelines using high-resolution remote sensing analysis
Autor: M. N. Lawton, Frances J. Cooper, R. S. J. Sparks, Laura Evenstar
Publikováno v: Evenstar, L A, Sparks, R S J, Cooper, F J & Lawton, M N 2018, ' Quaternary landscape evolution of the Helmand Basin, Afghanistan : insights from staircase terraces, deltas, and paleoshorelines using high-resolution remote sensing analysis ', Geomorphology, vol. 311, pp. 37-50 . https://doi.org/10.1016/j.geomorph.2018.03.018
The Helmand Basin in southern Afghanistan is a large (310,000 km2), structurally controlled, endorheically drained basin with a hyperarid climate. The basin hosts a high elevation (~200 m) plateau (the Dasht-i Margo), 11 fluvial staircase terraces (T
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3bb55436e63d09487e8c0182cb97b35
https://research-information.bris.ac.uk/en/publications/1523ff50-19a0-4e0f-a85c-06a7fba0d57b
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9
Post-collisional Cenozoic extension in the northern Aegean: the high-K to shoshonitic intrusive rocks of the Maronia Magmatic Corridor, northeastern Greece
Autor: Daniel J. Condon, Frances J. Cooper, Jonathan Naden, Brian Tattitch, Rebecca J. Perkins
Publikováno v: Perkins, R, Cooper, F, Condon, D, Tattitch, B & Naden, J 2018, ' Post-collisional Cenozoic extension in the northern Aegean : The high-K to shoshonitic intrusive rocks of the Maronia Magmatic Corridor, northeastern Greece ', Lithosphere . https://doi.org/10.1130/L730.1
The Maronia Magmatic Corridor is a NE-trending belt of Oligocene plutons that intrudes the Kechros Dome of the northern Rhodope Core Complex in northeastern Greece.The post-collisional magmatism transitions from early high-K calc-alkaline magmatism i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0699904eb1cd087a3215bf5390fdfe51
https://doi.org/10.1130/L730.1
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10
Synchronous N-S and E-W extension at the Tibet-to-Himalaya transition in NW Bhutan
Autor: Randall R. Parrish, Nick M.W. Roberts, Frances J. Cooper, Kip V. Hodges, Matthew S.A. Horstwood
Publikováno v: Tectonics. 34:1375-1395
Despite ~50 Myr of continuous continent-continent collision, contractional structures in the Himalayan-Tibetan orogen are today limited to the northern and southern margins of the system, while extension dominates much of the interior. On the Tibetan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::248b4bf181b27b314c3cc7e51f9223bb
https://doi.org/10.1002/2014tc003712
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