Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar
Constraints on the origin of Archean trondhemites were investigated by studying the T-X(H2O) phase relationships, as a function of water content, of the trondhjemitic Nuk gneiss (the principal component of the second phase of Archean igneous activity in the Godthab region, Greenland) with water at 1...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19910043543 2023-05-15T16:28:48+02:00 Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar Johnston, A. Dana Wyllie, Peter J. Unclassified, Unlimited, Publicly available JAN 1, 1988 http://ntrs.nasa.gov/search.jsp?R=19910043543 unknown http://ntrs.nasa.gov/search.jsp?R=19910043543 Accession ID: 91A28166 Copyright Other Sources 46 Contributions to Mineralogy and Petrology; 100; 35-46 1988 ftnasantrs 2012-02-15T18:58:39Z Constraints on the origin of Archean trondhemites were investigated by studying the T-X(H2O) phase relationships, as a function of water content, of the trondhjemitic Nuk gneiss (the principal component of the second phase of Archean igneous activity in the Godthab region, Greenland) with water at 15-kbar pressure. High-pressure experiments were completed in a piston-cylinder apparatus wih samples enclosed in gold capsules, and phase assemblages exposed on polished surfaces of run products and analyzed using optical microscope, SEM, and electron microprobe. The data obtained were found to be consistent with the multistage development model for the Archean crust in Finland, developed by Jahn et al. (1984), which calls for at least three stages of crustal development. Other/Unknown Material Greenland NASA Technical Reports Server (NTRS) Greenland |
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NASA Technical Reports Server (NTRS) |
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46 |
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46 Johnston, A. Dana Wyllie, Peter J. Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
topic_facet |
46 |
description |
Constraints on the origin of Archean trondhemites were investigated by studying the T-X(H2O) phase relationships, as a function of water content, of the trondhjemitic Nuk gneiss (the principal component of the second phase of Archean igneous activity in the Godthab region, Greenland) with water at 15-kbar pressure. High-pressure experiments were completed in a piston-cylinder apparatus wih samples enclosed in gold capsules, and phase assemblages exposed on polished surfaces of run products and analyzed using optical microscope, SEM, and electron microprobe. The data obtained were found to be consistent with the multistage development model for the Archean crust in Finland, developed by Jahn et al. (1984), which calls for at least three stages of crustal development. |
format |
Other/Unknown Material |
author |
Johnston, A. Dana Wyllie, Peter J. |
author_facet |
Johnston, A. Dana Wyllie, Peter J. |
author_sort |
Johnston, A. Dana |
title |
Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
title_short |
Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
title_full |
Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
title_fullStr |
Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
title_full_unstemmed |
Constraints on the origin of Archean trondhjemites based on phase relationships of Nuk gneiss with H2O at 15 kbar |
title_sort |
constraints on the origin of archean trondhjemites based on phase relationships of nuk gneiss with h2o at 15 kbar |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19910043543 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19910043543 Accession ID: 91A28166 |
op_rights |
Copyright |
_version_ |
1766018477507739648 |