American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion
Ilvaite, CaFe?+Fe3+(OH)Si2Os, is an abundant mineral in the upper parr of the Skaergaard intrusion of East Greenland. It occurs in these rocks as an alteration product replacing fayalitic olivine. Analyses of unaltered olivine and ilvaite demonstrate that the replacement process requires the removal...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.520.5481 2023-05-15T16:03:42+02:00 American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion H. R. Nasrunn J M. Huches R. W. Brnnrb The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.520.5481 http://rruff.info/doclib/am/vol68/AM68_1004.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.520.5481 http://rruff.info/doclib/am/vol68/AM68_1004.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://rruff.info/doclib/am/vol68/AM68_1004.pdf text ftciteseerx 2016-01-08T10:06:35Z Ilvaite, CaFe?+Fe3+(OH)Si2Os, is an abundant mineral in the upper parr of the Skaergaard intrusion of East Greenland. It occurs in these rocks as an alteration product replacing fayalitic olivine. Analyses of unaltered olivine and ilvaite demonstrate that the replacement process requires the removal of FeO and MgO from the olivine and the addition of CaO, H2O, and 02. Single crystal X-ray diffraction studies indicate that the Skaergaard ilvaite is the orthorhombic polymorph. It is suggested that the ilvaite crystal-lized under conditions of high /Hzo, low.7co2, low /C2, and moderate? during the subsolidus cooling of the intrusion. Text East Greenland Greenland Unknown Greenland |
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English |
description |
Ilvaite, CaFe?+Fe3+(OH)Si2Os, is an abundant mineral in the upper parr of the Skaergaard intrusion of East Greenland. It occurs in these rocks as an alteration product replacing fayalitic olivine. Analyses of unaltered olivine and ilvaite demonstrate that the replacement process requires the removal of FeO and MgO from the olivine and the addition of CaO, H2O, and 02. Single crystal X-ray diffraction studies indicate that the Skaergaard ilvaite is the orthorhombic polymorph. It is suggested that the ilvaite crystal-lized under conditions of high /Hzo, low.7co2, low /C2, and moderate? during the subsolidus cooling of the intrusion. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
H. R. Nasrunn J M. Huches R. W. Brnnrb |
spellingShingle |
H. R. Nasrunn J M. Huches R. W. Brnnrb American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
author_facet |
H. R. Nasrunn J M. Huches R. W. Brnnrb |
author_sort |
H. R. Nasrunn |
title |
American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
title_short |
American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
title_full |
American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
title_fullStr |
American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
title_full_unstemmed |
American Mineralogist, Volume 68, pages 100,1-1008, /983 Ilvaite, an alteration product replacing olivine in the Skaergaard intrusion |
title_sort |
american mineralogist, volume 68, pages 100,1-1008, /983 ilvaite, an alteration product replacing olivine in the skaergaard intrusion |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.520.5481 http://rruff.info/doclib/am/vol68/AM68_1004.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland Greenland |
genre_facet |
East Greenland Greenland |
op_source |
http://rruff.info/doclib/am/vol68/AM68_1004.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.520.5481 http://rruff.info/doclib/am/vol68/AM68_1004.pdf |
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