Journal ArticleDOI
Diffusion versus recrystallization processes in Rb-Sr geochronology : Isotopic relics in eclogite facies rocks, Western Gneiss Region, Norway
TLDR
In this article, it was shown that texturally unequilibrated high grade high-grade rocks which experienced no mineral reactions and remained devoid of free fluids during exhumation, like granulites or eclogites, are likely to represent isotopic relics.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 2008-01-15. It has received 108 citations till now. The article focuses on the topics: Granulite & Metamorphic facies.read more
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Metamorphic chemical geodynamics in continental subduction zones
TL;DR: In this paper, a review of the geochemical properties of UHP terranes is presented, focusing on the following issues in continental subduction zones: the time and duration of uHP metamorphism, the origin and action of metamorphic fluid/melt inside UHP slices, the element and isotope mobilities under HP to UHP conditions during continental collision, the origins of premetamorphic protoliths and its bearing on continental collision types, and the crustal detachment and crust mantle interaction in subduction channels.
Journal ArticleDOI
High-Temperature Deformation During Continental-Margin Subduction & Exhumation: The Ultrahigh-Pressure Western Gneiss Region of Norway
Bradley R. Hacker,Torgeir B. Andersen,Scott M. Johnston,Andrew R.C. Kylander-Clark,Emily M. Peterman,Emily O. Walsh,D. J. Young +6 more
TL;DR: In this article, a new dataset for the high-pressure to ultra-high-pressure Western Gneiss Region allows the definition of distinct structural and petrological domains, and the dominant Scandian deformation was coaxial E-W stretching.
Journal ArticleDOI
Campaign-style titanite U–Pb dating by laser-ablation ICP: Implications for crustal flow, phase transformations and titanite closure
K.J. Spencer,Bradley R. Hacker,Andrew R.C. Kylander-Clark,Torgeir B. Andersen,John M. Cottle,Michael A. Stearns,Jacob Poletti,Gareth G.E. Seward +7 more
TL;DR: In this paper, the authors used Titanite U-Pb dates to understand deformation and metamorphism of typical crustal rocks during ultra-high-pressure (UHP) subduction and exhumation.
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Geochronology of fluid-induced eclogite and amphibolite facies metamorphic reactions in a subduction–collision system, Bergen Arcs, Norway
TL;DR: Rb-Sr multimineral isochron data for metamorphic veins allow to date separate increments of the mineral reaction history of polymetamorphic terranes as mentioned in this paper.
References
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Journal ArticleDOI
Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmochronology
R.H. Steiger,E. Jäger +1 more
TL;DR: The IUGS Subcommission on Geochronology (FOOTNOTE 4) as discussed by the authors recommended the adoption of a standard set of decay constants and isotopic abundances in isotope geology.
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Approximation of terrestrial lead isotope evolution by a two-stage model
J.S. Stacey,Jan Kramers +1 more
TL;DR: In this paper, a two-stage model for terrestrial lead isotope evolution is proposed, which permits the age of the earth to be that of the meteorite system and also yields good model ages for samples of all ages.
Journal ArticleDOI
Nomenclature of amphiboles Report of the Subcommittee on Amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names;Nomenclature of amphiboles Report of the Subcommittee on Amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names
Bernard Elgey Leake,Alan R. Woolley,C. E. S. Arps,William D. Birch,M. C. Gilbert,Joel D. Grice,Ec. Hawthorne,A. Kato,Hanan J. Kisch,V. G. Krivovichev,K. Linthout,J. Laird,Joseph A. Mandarino,W. V. Maresch,Ernest H. Nickel,N. M. S. Rock,John C. Schumacher,D. C. Smith,Nicholas C.N. Stephenson,Luciano Ungaretti,Eric J.W. Whittaker,G. Youzhi +21 more
TL;DR: The International Mineralogical Association's approved amphibole nomenclature has been revised to simplify it, make it more consistent with divisions generally at 50%, define prefixes and modifiers more precisely, and include new amphibole species discovered and named since 1978, when the previous scheme was approved.