Browsing by Subject "Carboniferous"
Now showing items 1-5 of 5
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(2019-07-15)The highly-deformed rocks of western Arkansas to eastern Oklahoma, record the Late Paleozoic tectonic history of the southern boundary of the North American Craton. The Mississippian rocks (i.e., Stanley Group) were deposited ...
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(2012-07-16)Nearly 550 samples of fine grained carbonates, collected every 0.5 to 1.0 m from the Bloom Member of the Snaky Canyon Formation at Gallagher Peak, Idaho, were analyzed to determine the high-resolution carbon isotope ...
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(2009-05-15)A new species of the medullosan seed fern genus, Pachytesta, is described from specimens discovered in coal balls from Iowa. The specimens used in this study were located in coal balls, which are concretions of ...
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(2012-07-16)Global climate is controlled by two factors, the amount of heat energy received from the sun (solar insolation) and the way that heat is distributed Earth's surface. Solar insolation varies on timescales of 10s to 100s of ...
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(2014-12-10)The relationship between Permo-Carboniferous glacial cycles and low-latitude climate remains a subject of vigorous debate. This study investigated seasonality and regional environmental variability in a portion of central ...