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Showing 1 to 1 of 1 for “"Zeolites; Metamorphism (Geology); Analcime"”.
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Authigenic analcite in the Golden Valley Formation southwestern North Dakota
<p>Authigenic analcite constitutes up to about 60 percent of a massive, arksosic sandstone exposed on major buttes in the North Dakota Badlands. The analcite constitutes up to about 80 percent of a thin analcimolite bed at the top of the arkose unit. The analcite occurs as spherulites in the …