Economic geology : bulletin of the society of economic geologists, Vol. 105 N° 4. Economic geology and the bulletin of the society of economic geologists - Juin/Juillet 2010
| Titre : | Economic geology : bulletin of the society of economic geologists, Vol. 105 N° 4. Economic geology and the bulletin of the society of economic geologists - Juin/Juillet 2010 |
| Type de document : | Bulletin |
| Paru le : | 07/09/2011 |
Dépouillements
Article : texte imprimé
Lawrence S. Winter, Auteur ;
Richard M. Tosdal, Auteur ;
James K. Mortensen, Auteur
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A ~10-km-thick sequence of basaltic to rhyolitic volcanic rocks forms the arc component of the Cretaceous Lancones basin in northwestern Peru and underlies part of the Huancabamba deflection. The marine volcanic successions show markedly differe[...]
Article : texte imprimé
Armelle Kloppenburg, Auteur ;
John Grocott, Auteur ;
David Hutchinson, Auteur
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Cu-Au-Mo porphyry-type and Cu skarn-type mineralization in the Bingham mining district of Utah are temporally and spatially related to a suite of monzonite and quartz monzonite porphyry intrusions comprising the Bingham complex. Structural contr[...]
Article : texte imprimé
van Dongen, Michiel, Auteur ;
Roberto F. Weinberg, Auteur ;
Andrew G. Tomkins, Auteur
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Chondrite-normalized rare earth element (REE) plots of whole-rock geochemical analyses are commonly used to describe the history of magmatic systems. In the particular case of porphyry copper deposits, which are produced by ore-forming magmatic-[...]
Article : texte imprimé
James K. Mortensen, Auteur ;
David Craw, Auteur ;
Douglas J. MacKenzie, Auteur
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The Otago Schist belt of southern New Zealand hosts numerous orogenic gold deposits that formed in a range of structural and lithological settings during and after Mesozoic metamorphism. Previous 40Ar/39Ar dating studies in the Otago Schist belt[...]
Article : texte imprimé
Marco L. Fiorentini, Auteur ;
Stephen J. Barnes, Auteur ;
C. Michael Lesher, Auteur
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Platinum-group elements (PGE) are strongly chalcophile and are therefore potentially sensitive indicators of processes involving segregation and accumulation of sulfide melts from silicate magmas. Over 500 new high-precision PGE data for komatii[...]
Article : texte imprimé
A. V. Golovko, Auteur ;
F. V. Kaminsky, Auteur
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The diamondiferous Karashoho pipe was discovered in the Bukantau Mountains, Uzbekistan, in the 1990s and evaluated from 2002 to 2007. It is an elongate, twinned, subvertical-dipping body with an approximate surface expression of 530 × 65–155 m ([...]
Article : texte imprimé
W. D. Maier, Auteur ;
S.-J. Barnes, Auteur
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Boreholes have intersected the interval hosting the Pyroxenite Marker at the base of the Upper Main zone on the farm Moorddrift in the northern Bushveld Complex. The concentrations of the major and compatible trace elements in the rocks are in t[...]
Article : texte imprimé
Michael Haschke, Auteur ;
Jamshid Ahmadian, Auteur ;
Mamoru Murata, Auteur
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Contrasting geochemical signatures of copper ore hosting Eocene and some barren undeformed Miocene diorites to granites in central Iran temporally overlap with the Alpine-Himalayan collision and provide key implications on the existence and lack[...]
Article : texte imprimé
Paul G. Spry, Auteur
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