Browsing by Subject "Ordovician"
Now showing items 1-4 of 4
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(2012-11-20)Middle Ordovician (Whiterockian) sandstone units within the Oil Creek, McLish, and Tulip Creek formations of the Simpson Group of Oklahoma, and the Everton (Calico Rock Member) and St. Peter formations of Arkansas were ...
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(2012-07-16)Middle-Late Ordovician Mt. Wilson Quartzite, southern British Columbia, Canada, is a supermature quartz arenite deposited in shallow marine-marginal marine environments on the Early Paleozoic western Laurentian passive ...
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(2012-07-16)The Middle-Late Ordovician Eureka Quartzite in south-central Nevada and eastern California is a supermature quartz arenite that was deposited along the Lower Paleozoic western passive margin of Laurentia. Measured section ...
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(2015-08-07)The Cambro-Ordovician Hales Limestone in the Hot Creek Range, Nevada records a carbonate slope to toe-of-slope environment. Gigapan™ photomosaics, measured sections, and thin sections of the outcrops help to identify ...