An occurrence of ultrapotassic dikes in the

A brief description is presented here of a group of highly potassic, highly magnesian dikes, originally called kersantites but better-named as lamproites. These rocks may contain phenocrysts of forsteritic olivine, diopside, phlogopite, amphibole (a unique potassic magnesioarfvedsonite) and pseudole...

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Main Authors: C. K. Brooks, A. Noe-nygaard, D. C. Rex, J. G. Rønsbo
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
North Atlantic
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.2438
http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.555.2438 2023-05-15T17:30:14+02:00 An occurrence of ultrapotassic dikes in the C. K. Brooks A. Noe-nygaard D. C. Rex J. G. Rønsbo The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.2438 http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.2438 http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf text ftciteseerx 2016-01-08T11:44:47Z A brief description is presented here of a group of highly potassic, highly magnesian dikes, originally called kersantites but better-named as lamproites. These rocks may contain phenocrysts of forsteritic olivine, diopside, phlogopite, amphibole (a unique potassic magnesioarfvedsonite) and pseudoleucite set in a groundmass rich in phlogopite, amphibole and carbonate. A K-Ar date on phlogopite indicates an age of ca. 1200 m.y. which is similar to that of a number of other alkaline rocks in the North Atlantic region. Text North Atlantic Unknown
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description A brief description is presented here of a group of highly potassic, highly magnesian dikes, originally called kersantites but better-named as lamproites. These rocks may contain phenocrysts of forsteritic olivine, diopside, phlogopite, amphibole (a unique potassic magnesioarfvedsonite) and pseudoleucite set in a groundmass rich in phlogopite, amphibole and carbonate. A K-Ar date on phlogopite indicates an age of ca. 1200 m.y. which is similar to that of a number of other alkaline rocks in the North Atlantic region.
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author C. K. Brooks
A. Noe-nygaard
D. C. Rex
J. G. Rønsbo
spellingShingle C. K. Brooks
A. Noe-nygaard
D. C. Rex
J. G. Rønsbo
An occurrence of ultrapotassic dikes in the
author_facet C. K. Brooks
A. Noe-nygaard
D. C. Rex
J. G. Rønsbo
author_sort C. K. Brooks
title An occurrence of ultrapotassic dikes in the
title_short An occurrence of ultrapotassic dikes in the
title_full An occurrence of ultrapotassic dikes in the
title_fullStr An occurrence of ultrapotassic dikes in the
title_full_unstemmed An occurrence of ultrapotassic dikes in the
title_sort occurrence of ultrapotassic dikes in the
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.2438
http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf
genre North Atlantic
genre_facet North Atlantic
op_source http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.555.2438
http://2dgf.dk/xpdf/bull27-01-02-1-8.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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