M. Dane Picard
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View article: Shrapnel in Omaha Beach Sand
Shrapnel in Omaha Beach Sand Open
commanded by General Dietrich Kraiss, (1889Kraiss, ( -1944)).Partly made up of troops from the Russian front, it was a first class fighting force that had been moved into the area in May, about 7,800 strong.Rommel's battle plan was to stop…
View article: Teaching the Unknown in Geology
Teaching the Unknown in Geology Open
It's not news to college geology teachers that students in first-year courses don't know much about science. And they may not learn much: some of these introductory courses haven't been changed in decades. Facts and the known are stressed …
View article: Harry Hammond Hess and the Theory of Sea-Floor Spreading
Harry Hammond Hess and the Theory of Sea-Floor Spreading Open
(1989). Harry Hammond Hess and the Theory of Sea-Floor Spreading. Journal of Geological Education: Vol. 37, No. 5, pp. 346-349.
View article: Stratigraphy of Lacustrine Deposits: ABSTRACT
Stratigraphy of Lacustrine Deposits: ABSTRACT Open
The major stratigraphic aspects of lacustrine rock units are geometry (thickness and lateral extent), facies patterns, and vertical sequence. Sizes and shapes of modern lakes show wide ranges, but many large ones are subcircular to elongat…
View article: Paleosols as Environmental Indicators in Nonmarine Sedimentary Rocks--Example from Brule Formation: ABSTRACT
Paleosols as Environmental Indicators in Nonmarine Sedimentary Rocks--Example from Brule Formation: ABSTRACT Open
Although there has been considerable study of Pleistocene and post-Pleistocene soils as stratigraphic markers and environmental indicators, much less attention has been given to older paleosols. In nonmarine sedimentary beds, periods of no…
View article: Tectonics and Depositional History of Rocky Mountain Intermontane Basin: ABSTRACT
Tectonics and Depositional History of Rocky Mountain Intermontane Basin: ABSTRACT Open
In the Uinta basin of northeastern Utah, the Uinta and Duchesne River Formations are composed of extremely diverse fluvial sedimentary rocks. The rock units overlie extensive lacustrine deposits of Lake Uinta and provide a sensitive record…
View article: Comparison of Geologic Cycles of Earth, Moon, and Mars: ABSTRACT
Comparison of Geologic Cycles of Earth, Moon, and Mars: ABSTRACT Open
The geologic of a planet depicts the interaction of impact, surface, and internal tectonic processes on the planetary surface. The earth has a closed-loop geologic in which source rocks are eroded but are continuously recycled. In contra…
View article: Secondary and Postdepositional Redbeds of Duchesne River Formation (Eocene-Oligocene?), Uinta Basin, Utah: ABSTRACT
Secondary and Postdepositional Redbeds of Duchesne River Formation (Eocene-Oligocene?), Uinta Basin, Utah: ABSTRACT Open
Clastic sedimentary rocks of the Duchesne River Formation are largely red or reddish brown. Red pigment (hematite) is present as very fine-grained iron oxide, as staining on grain surfaces, and in cement. Apparently most of the pigment was…