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1976•Journal of PetrologyRequires access

Primary Igneous Analcite--an Experimental Study

J. Roux, D. L. Hamilton

Open publisher page 67 citations

Abstract

In the albite-orthoclase-nepheline-kalsilite-water system the assemblage analcite-melt (±nepheline albite and orthoclase) can only exist in the pressure range 5 to 13 Kbars and at temperatures between 640 and 600 °C. Primary igneous analcite will have a similar restricted PT range which probably means that interstitial analcite found in many high-level dike rocks is secondary.

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What this paper is about

In the albite-orthoclase-nepheline-kalsilite-water system the assemblage analcite-melt (±nepheline albite and orthoclase) can only exist in the pressure range 5 to 13 Kbars and at temperatures between 640 and 600 °C. Primary igneous analcite will have a similar restricted PT range which probably means that interstitial analcite found in many high-level dike rocks is secondary.

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OpenAlex reports 67 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

In the albite-orthoclase-nepheline-kalsilite-water system the assemblage analcite-melt (±nepheline albite and orthoclase) can only exist in the pressure range 5 to 13 Kbars and at temperatures between 640 and 600 °C. Primary igneous analcite will have a similar restricted PT range which probably means that interstitial analcite found in many high-level dike rocks is secondary.

Key concepts: Nepheline, Orthoclase, Albite, Geology, Geochemistry, Igneous rock, Feldspar, Paleontology

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