Search Results - "Swinehart, James B"

Late-Holocene dune activity linked to hydrological drought, Nebraska Sand Hills, USA by Mason, Joseph A., Swinehart, James B., Goble, Ronald J., Loope, David B.

“…Dunefields of the Great Plains contain stratigraphic records of episodic Holocene aeolian activity, potentially providing a valuable record of climatic change…”
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Temporal and spatial variability in dune reactivation across the Nebraska Sand Hills, USA by Schmeisser McKean, Rebecca L, Goble, Ronald J, Mason, Joseph B, Swinehart, James B, Loope, David B

“…The Nebraska Sand Hills is a stabilized dune field on the Great Plains of North America. Although it is well known that this dune field, like several others on…”
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Limited change in dune mobility in response to a large decrease in wind power in semi-arid northern China since the 1970s by Mason, Joseph A., Swinehart, James B., Lu, Huayu, Miao, Xiaodong, Cha, Phueng, Zhou, Yali

“…The climatic controls on dune mobility, especially the relative importance of wind strength, remain incompletely understood. This is a key research problem in…”
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Large Wind Shift on the Great Plains During the Medieval Warm Period by Sridhar, Venkataramana, Loope, David B, Swinehart, James B, Mason, Joseph A, Oglesby, Robert J, Rowe, Clinton M

“…Spring-summer winds from the south move moist air from the Gulf of Mexico to the Great Plains. Rainfall in the growing season sustains prairie grasses that…”
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Holocene variability in hydrology, vegetation, fire, and eolian activity in the Nebraska Sand Hills, USA by Schmieder, Jens, Fritz, Sherilyn C, Grimm, Eric C, Jacobs, Kimberly C, Brown, Kendrick J, Swinehart, James B, Porter, Stephen C

“…This study combined multiple aquatic and terrestrial proxies, including diatoms, pollen, grain size, and bulk-sediment chemistry to reconstruct the history of…”
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Ground Water Sustenance of Nebraska's Unique Sand Hills Peatland Fen Ecosystems by Harvey, F. Edwin, Swinehart, James B., Kurtz, Tina M.

“…Many ecosystems have evolved under conditions where ground water is critical to the survival of the unique species contained therein. One example is Nebraska’s…”
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THINKING LIKE A DUNE FIELD: GEOLOGIC HISTORY IN THE NEBRASKA SAND HILLS by Loope, David B., Swinehart, James B.

“…The Nebraska Sand Hills region is a giant dune field that is presently stabilized by prairie vegetation. During numerous severe droughts within the last 15,000…”
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EVIDENCE OF HOLOCENE CLIMATE CHANGE IN A NEBRASKA SANDHILLS WETLAND by Nicholson, Barbara J., Swinehart, James B.

“…The Nebraska Sandhills consist of 50,000 km2 of dunes, currently stabilized by vegetation. Radiocarbon dates of paleosols, blocked paleovalleys, and sand beds…”
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Wilderness Serendipity: Planning and Assessing Learning during an Experiential Field Course by Powell, Larkin A., Tyre, Andrew J., Hygnstrom, Scott E., Wedin, David A., Hanson, Paul R., Kuzila, Mark S., Swinehart, James B.

“…Experiential learning opportunities promote skill in problem-solving and critical thinking, but they require unique assessment methods because traditional…”
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Holocene history of lacustrine and marsh sediments in a dune-blocked drainage, Southwestern Nebraska Sand Hills, U.S.A by Mason, J P, Swinehart, J B, Loope, D B

“…As many as 2500 interdune lakes lie within the Nebraska Sand Hills, a 50000 km stabilized sand sea. The few published data on cores from these lakes indicate…”
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Optical and radiocarbon ages of stacked paleosols and dune sands in the Nebraska Sand Hills, USA by Goble, R.J., Mason, Joseph A., Loope, David B., Swinehart, James B.

“…Optical ages for eolian sands from the Nebraska Sand Hills indicate periods of extensive eolian activity at ca 115±25, 840±70, 2300±240, and 3560±340 a…”
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Sedimentology of the Whiteclay Gravel Beds (Ogallala Group) in northwestern Nebraska, USA: Structurally controlled drainage promoted by Early Miocene uplift of the Black Hills Dome by Fielding, Christopher R., LaGarry, Hannan E., LaGarry, Leigh Anne, Bailey, Bruce E., Swinehart, James B.

“…The newly recognized Whiteclay Gravel Beds (WGB) of the Miocene Ogallala Group crop out as a narrow, discontinuous ribbon of sands and gravels in Dawes and…”
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Wilderness Serendipity: Planning and Assessing Learning during an Experiential Field Course1 by Powell, Larkin A, Tyre, Andrew J, Hygnstrom, Scott E, Wedin, David A, Hanson, Paul R, Kuzila, Mark S, Swinehart, James B

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Evidence for Holocene environmental change from C/N ratios, and [delta]13C and [delta]15N values in Swan Lake sediments, western Sand Hills, Nebraska by Hassan, Kamaleldin M, Swinehart, James B, Spalding, Roy F

“…Profiles of percent carbon and nitrogen, carbon/nitrogen (C/N) ratios and stable carbon (δ^sup 13^C), and nitrogen (δ^sup 15^N) isotopic ratios in organic…”
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Holocene history of lacustrine and marsh sediments in a dune-blocked drainage, southwestern Nebraska Sand Hills by Mason, Jon P, Swinehart, James B, Loope, David B

“…As many as 2500 interdune lakes lie within the Nebraska Sand Hills, a 50 000 km stabilized sand sea. The few published data on cores from these lakes indicate…”
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