Search Results - "Caffee, Marc"

New cosmogenic burial ages for Sterkfontein Member 2 Australopithecus and Member 5 Oldowan by Granger, Darryl E., Gibbon, Ryan J., Kuman, Kathleen, Clarke, Ronald J., Bruxelles, Laurent, Caffee, Marc W.

“…Isochron burial dating with cosmogenic nuclides 26 Al and 10 Be shows that the skeleton of the australopithecine individual known as ‘Little Foot’ is around…”
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Geological calibration of spallation production rates in the CRONUS-Earth project by Borchers, Brian, Marrero, Shasta, Balco, Greg, Caffee, Marc, Goehring, Brent, Lifton, Nathaniel, Nishiizumi, Kunihiko, Phillips, Fred, Schaefer, Joerg, Stone, John

“…Models of the production of cosmogenic nuclides typically incorporate an adjustable production rate parameter that is scaled for variations in production with…”
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Timing and climatic drivers for glaciation across semi-arid western Himalayan–Tibetan orogen by Dortch, Jason M., Owen, Lewis A., Caffee, Marc W.

“…Mapping and forty-seven new 10Be ages help define the timing of glaciation in the Ladakh and Pangong Ranges in Northwest India. Five new local glacial stages…”
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Too young or too old: Evaluating cosmogenic exposure dating based on an analysis of compiled boulder exposure ages by Heyman, Jakob, Stroeven, Arjen P., Harbor, Jonathan M., Caffee, Marc W.

“…Cosmogenic exposure dating has greatly enhanced our ability to define glacial chronologies spanning several global cold periods, and glacial boulder exposure…”
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The Neutron Energy Spectra of Lunar Meteorites Evaluated from Sm and Er Isotopic Compositions by Hidaka, Hiroshi, Yoneda, Shigekazu, Nishiizumi, Kunihiko, Caffee, Marc

“…Abstract Cosmic-ray exposure records of 13 lunar meteorites, Dhofar 081, Dhofar 910, Dhofar 911, Northwest Africa (NWA) 482, NWA 2995, NWA 2996, NWA 3136, NWA…”
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Cosmic‐ray exposure age accumulated in near‐Earth space: A carbonaceous chondrite case study by Shober, Patrick M., Caffee, Marc W., Bland, Phil A.

“…This study investigates the expected cosmic‐ray exposure (CRE) of meteorites if they were to be ejected by a near‐Earth object, that is, from an object already…”
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Recent tropical Andean glacier retreat is unprecedented in the Holocene by Gorin, Andrew L, Shakun, Jeremy D, Jones, Andrew G, Kennedy, Tori M, Marcott, Shaun A, Goehring, Brent M, Zoet, Lucas K, Jomelli, Vincent, Bromley, Gordon R M, Mateo, Emilio I, Mark, Bryan G, Rodbell, Donald T, Gilbert, Adrien, Caffee, Marc W

“…Tropical glaciers have retreated over recent decades, but whether the magnitude of this retreat exceeds the bounds of Holocene fluctuations is unclear. We…”
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Rapid last-deglacial thinning and retreat of the marine-terminating southwestern Greenland ice sheet by Winsor, Kelsey, Carlson, Anders E., Caffee, Marc W., Rood, Dylan H.

“…Marine-terminating outlet glaciers are a major source of modern ice loss from the Greenland Ice Sheet (GrIS), but their role in GrIS retreat during the last…”
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Deep-water circulation changes lead North Atlantic climate during deglaciation by Muschitiello, Francesco, D’Andrea, William J., Schmittner, Andreas, Heaton, Timothy J., Balascio, Nicholas L., deRoberts, Nicole, Caffee, Marc W., Woodruff, Thomas E., Welten, Kees C., Skinner, Luke C., Simon, Margit H., Dokken, Trond M.

“…Constraining the response time of the climate system to changes in North Atlantic Deep Water (NADW) formation is fundamental to improving climate and Atlantic…”
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Greenland was nearly ice-free for extended periods during the Pleistocene by Schaefer, Joerg M., Finkel, Robert C., Balco, Greg, Alley, Richard B., Caffee, Marc W., Briner, Jason P., Young, Nicolas E., Gow, Anthony J., Schwartz, Roseanne

“…Measurements of cosmic-ray-produced 10 Be and 26 Al in a bedrock core from beneath the summit of the Greenland Ice Sheet show that Greenland was nearly…”
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Late Cenozoic climate change paces landscape adjustments to Yukon River capture by Bender, Adrian M., Lease, Richard O., Corbett, Lee B., Bierman, Paul R., Caffee, Marc W., Rittenour, Tammy M.

“…Late Cenozoic cooling and changes in glacial–interglacial cycle tempo are thought to increase global rates of erosion starting ~3 million years ago (Ma)…”
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Timing and climatic drivers for glaciation across monsoon-influenced regions of the Himalayan–Tibetan orogen by Murari, Madhav K., Owen, Lewis A., Dortch, Jason M., Caffee, Marc W., Dietsch, Craig, Fuchs, Markus, Haneberg, William C., Sharma, Milap C., Townsend-Small, Amy

“…Mapping and thirty-eight 10Be terrestrial cosmogenic nuclide (TCN) ages help define the timing of glaciation in the monsoon-influenced Greater Himalaya in…”
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A multimillion-year-old record of Greenland vegetation and glacial history preserved in sediment beneath 1.4 km of ice at Camp Century by Christ, Andrew J., Bierman, Paul R., Schaefer, Joerg M., Dahl-Jensen, Dorthe, Steffensen, Jørgen P., Corbett, Lee B., Peteet, Dorothy M., Thomas, Elizabeth K., Steig, Eric J., Rittenour, Tammy M., Tison, Jean-Louis, Blard, Pierre-Henri, Perdrial, Nicolas, Dethier, David P., Lini, Andrea, Hidy, Alan J., Caffee, Marc W., Southon, John

“…Understanding the history of the Greenland Ice Sheet (GrIS) is critical for determining its sensitivity to warming and contribution to sea level; however, that…”
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Tracking denudation and sediment production and transport with cosmogenic 10Be in arid, high‐altitude Himalayan half‐grabens, Zanskar, northern India by Dietsch, Craig, Hedrick, Kathryn, Owen, Lewis A., Caffee, Marc W.

“…Understanding the extent to which local factors, including bedrock and structure, govern catchment denudation in mountainous environments as opposed to broader…”
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Quaternary glaciation of the Himalayan-Tibetan orogen by Owen, Lewis A., Caffee, Marc W., Finkel, Robert C., Seong, Yeong Bae

“…Glacial geological evidence from throughout the Himalayan–Tibetan orogen is examined to determine the timing and extent of late Quaternary glaciation in this…”
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Nature and timing of large landslides in the Himalaya and Transhimalaya of northern India by Dortch, Jason M., Owen, Lewis A., Haneberg, William C., Caffee, Marc W., Dietsch, Craig, Kamp, Ulrich

“…Four large landslides, each with a debris volume >10 6 m 3, in the Himalaya and Transhimalaya of northern India were examined, mapped, and dated using 10Be…”
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The WAIS Divide deep ice core WD2014 chronology – Part 2: Annual-layer counting (0–31 ka BP) by Sigl, Michael, Fudge, Tyler J., Winstrup, Mai, Cole-Dai, Jihong, Ferris, David, McConnell, Joseph R., Taylor, Ken C., Welten, Kees C., Woodruff, Thomas E., Adolphi, Florian, Bisiaux, Marion, Brook, Edward J., Buizert, Christo, Caffee, Marc W., Dunbar, Nelia W., Edwards, Ross, Geng, Lei, Iverson, Nels, Koffman, Bess, Layman, Lawrence, Maselli, Olivia J., McGwire, Kenneth, Muscheler, Raimund, Nishiizumi, Kunihiko, Pasteris, Daniel R., Rhodes, Rachael H., Sowers, Todd A.

“…We present the WD2014 chronology for the upper part (0–2850 m; 31.2 ka BP) of the West Antarctic Ice Sheet (WAIS) Divide (WD) ice core. The chronology is based…”
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Rates of rockwall slope erosion in the upper Bhagirathi catchment, Garhwal Himalaya by Orr, Elizabeth N., Owen, Lewis A., Saha, Sourav, Caffee, Marc W.

“…ABSTRACT Rockwall slope erosion is defined for the upper Bhagirathi catchment using cosmogenic Beryllium‐10 (10Be) concentrations in sediment from medial…”
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Cosmogenic radionuclides in meteorites from the Otway Massif blue ice area, Antarctica: An unusual, well‐preserved H5 chondrite strewn field by Welten, Kees C., Caffee, Marc W., Kress, Monika E., Giscard, Marlene D., Jull, A. J. Timothy, Harvey, Ralph P., Schutt, John

“…The US Antarctic Search for Meteorites (ANSMET) discovered a dense cluster of 88 ordinary chondrites with a total mass of more than 100 kg on a blue ice area…”
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Beryllium-10 concentrations in the hyper-arid soils in the Atacama Desert, Chile: Implications for arid soil formation rates and El Niño driven changes in Pliocene precipitation by Wang, Fan, Michalski, Greg, Seo, Ji-Hye, Granger, Darryl E., Lifton, Nathaniel, Caffee, Marc

“…Meteoric 10Be concentrations in soil were measured to understand the mechanism, timescale, and climatic dependence of soil formation in the hyper-arid Atacama…”
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