Microtextures of authigenic Or-rich feld
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Martin R. Lee; Ian Parsons
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Article
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2003
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John Wiley and Sons
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English
β 509 KB
**ABSTRACT** Detrital alkali feldspars currently at burial depths of 3Β·2β3Β·5βkm in the Upper Jurassic Humber Group of the Fulmar oilfield, UK North Sea, are overgrown and have been partially replaced by authigenic Orβrich feldspar. Intracrystal microtextures suggest several different provenances for