Browsing by Subject "zircon"
Now showing items 1-2 of 2
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(2015-12-10)During the Middle to Late Ordovician, Laurentia was situated over the equator and the Transcontinental Arch, and its exposed basement rock and sedimentary cover straddled the equator. This resulted in unique siliciclastic ...
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(2012-02-14)The supermature Middle-Late Ordovician Swan Peak quartz arenite was deposited on the western Laurentia passive margin and is very fine to fine grained, well-rounded, well-sorted, and silica-cemented. Laurentia was positioned ...