826 research outputs found

    Kongsberg EM302 processed bathymetry data, Indus Canyon and shelf, Pelagia cruise PE300 (year 2008-2009, investigators Peter Clift and Tim Henstock)

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    Processed bathymetry grid derived from Kongsberg EM302 multibeam swath sonar data for the Indus Canyon and shelf, Arabian Sea. Data collected 2008-2009 during Pelagia cruise PE300 (investigators Peter Clift and Tim Henstock), with funding from NERC grant NE/D005442/1 and NSF award OCE06-23766. The data files are in netCDF:GMT format.</span

    Electrical conductivity, hydraulic profiling tool and natural gamma logging from False River Louisiana

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    Downhole logging data within the Holocene False River point bar complex in Pointe Coupe Parish, Louisiana. Data relate to manuscript &quot;Improving Predictive Methodologies for Understanding the Internal Heterogeneity of Point-Bar Deposits Through Geophysical Logging and Morphometric Analysis: False River, Louisiana” by Peter D Clift and Catherine Russell, submitted to Sedimentology. Data collected by probe manufactured by Geoprobe

    Humanizing the Cold War campus: the battle for hearts and minds at MIT, 1945-1965.

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    University of Minnesota Ph.D dissertation. November 2009. Major: American Stuides. Advisor: Elaine Tyler May. 1 computer file (PDF); ix, 568 pages.Abstract not available.Kizilos-Clift, Peter Justin. (2009). Humanizing the Cold War campus: the battle for hearts and minds at MIT, 1945-1965.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/57436

    Deep sea records of the continental weathering and erosion response to East Asian monsoon intensification since 14ka in the South China Sea

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    We analyzed sediment from Ocean Drilling Program (ODP) Site 1144 in the northern South China Sea to examine the weathering response of SE Asia to the strengthening of the East Asian Monsoon (EAM) since 14 ka. Our high-resolution record highlights the decoupling between continental chemical weathering, physical erosion and summer monsoon intensity. Mass accumulation rates, Ti/Ca, K/Rb, hematite/goethite and 87Sr/86Sr show sharp excursions from 11 to 8 ka, peaking at 10 ka. Clay minerals show a shorter-lived response with a higher kaolinite/(illite + chlorite) ratio at 10.7–9.5 ka. However, not all proxies show a clear response to environmental changes. Magnetic susceptibility rises sharply between 12 and 11 ka. Grain-size becomes finer from 14 to 10 ka and then coarsens until ~ 7 ka, but is probably controlled by bottom current flow and sealevel. Sr and Nd isotopes show that material is dominantly eroded from Taiwan with a lesser flux from Luzon, while clay mineralogy suggests that the primary sources during the Early Holocene were reworked via the shelf in the Taiwan Strait, rather than directly from Taiwan. Erosion was enhanced during monsoon strengthening and caused reworking of chemically weathered Pleistocene sediment largely from the now flooded Taiwan Strait, which was transgressed by ~ 8 ka, cutting off supply to the deep-water slope. None of the proxies shows an erosional response lasting until ~ 6 ka, when speleothem oxygen isotope records indicate the start of monsoon weakening. Although more weathered sediments were deposited from 11 to 8 ka when the monsoon was strong these are reworked and represent more weathering during the last glacial maximum (LGM) when the summer monsoon was weaker but the shelves were exposed

    Frank Sinatra, Montgomery Clift, Deborah Kerr, and others during production of FROM HERE TO ETERNITY, 1953

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    From left: Frank Sinatra, Montgomery Clift, Deborah Kerr, Burt Lancaster, author James Jones, and director Fred Zinnemann pose next to air stairs during production of FROM HERE TO ETERNITY, 1953. 8x10 b&w photographic print

    Season 8 Episode 9: Women in Political Leadership

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    Is a woman strong enough to be President of the United States? To lead us into war, to stand up to terrorists? And can she do it all in a pink suit? Why does it matter what she wears? Host Shirley Hoogstra discusses women in political leadership with Calvin College January Series guest Eleanor Clift, contributing editor and columnist for Newsweek and co -author of Madam President: Women Blazing the Leadership Trail. Episode #809

    Holocene and Modern Mississippi detrital zircon U-Pb ages

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    Data related to modern and Holocene sands from the lower Mississippi River. Published inClimate and Anthropogenic Impacts on North American Erosion and Sediment Buffering since the Last Glacial Maximum: Evidence from the Detrital Zircon Record of the Lower Mississippi Valley by Nikki Neubeck, Andrew Carter, Tammy Rittenour, and Peter D. Clift, in Geological Society of America BulletinTHIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

    Electrical conductivity, hydraulic profiling tool and natural gamma logging from False River Louisiana

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    Downhole logging data within the Holocene False River point bar complex in Pointe Coupe Parish, Louisiana. Data relate to manuscript &quot;Improving Predictive Methodologies for Understanding the Internal Heterogeneity of Point-Bar Deposits Through Geophysical Logging and Morphometric Analysis: False River, Louisiana” by Peter D Clift and Catherine Russell, submitted to Sedimentology. Data collected by probe manufactured by Geoprobe.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

    Frank Sinatra, Montgomery Clift, Buddy Adler, and James Jones during the production of FROM HERE TO ETERNITY, 1953

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    From left: Frank Sinatra, Montgomery Clift, producer Buddy Adler, holding the book on which the film is based, and writer James Jones, author of the novel, during the production of FROM HERE TO ETERNITY, 1953. 8x10 b&w photographic print

    Coupled onshore erosion and offshore sediment loading as causes of lower crust flow on the margins of South China Sea

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    © 2015, Clift. Hot, thick continental crust is susceptible to ductile flow within the middle and lower crust where quartz controls mechanical behavior. Reconstruction of subsidence in several sedimentary basins around the South China Sea, most notably the Baiyun Sag, suggests that accelerated phases of basement subsidence are associated with phases of fast erosion onshore and deposition of thick sediments offshore. Working together these two processes induce pressure gradients that drive flow of the ductile crust from offshore towards the continental interior after the end of active extension, partly reversing the flow that occurs during continental breakup. This has the effect of thinning the continental crust under super-deep basins along these continental margins after active extension has finished. This is a newly recognized form of climate-tectonic coupling, similar to that recognized in orogenic belts, especially the Himalaya. Climatically modulated surface processes, especially involving the monsoon in Southeast Asia, affects the crustal structure offshore passive margins, resulting in these “load-flow basins”. This further suggests that reorganization of continental drainage systems may also have a role in governing margin structure. If some crustal thinning occurs after the end of active extension this has implications for the thermal history of hydrocarbon-bearing basins throughout the area where application of classical models results in over predictions of heatflow based on observed accommodation space
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