Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Malcolm A. LeCompte"'
Autor:
Christopher R. Moore, Mark J. Brooks, James S. Dunbar, C. Andrew Hemmings, Kurt A. Langworthy, Allen West, Malcolm A. LeCompte, Victor Adedeji, James P. Kennett, James K. Feathers
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-22 (2023)
Abstract Anomalous peak abundances of platinum and Fe-rich microspherules with high-temperature minerals have previously been demonstrated to be a chronostratigraphic marker for the lower Younger Dryas Boundary (YDB) dating to 12.8 ka. This study use
Externí odkaz:
https://doaj.org/article/cd8659d7bbb247d99ee9cf9a4fe8df70
Autor:
Ted E. Bunch, Malcolm A. LeCompte, A. Victor Adedeji, James H. Wittke, T. David Burleigh, Robert E. Hermes, Charles Mooney, Dale Batchelor, Wendy S. Wolbach, Joel Kathan, Gunther Kletetschka, Mark C. L. Patterson, Edward C. Swindel, Timothy Witwer, George A. Howard, Siddhartha Mitra, Christopher R. Moore, Kurt Langworthy, James P. Kennett, Allen West, Phillip J. Silvia
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-3 (2023)
Externí odkaz:
https://doaj.org/article/6967a7e4fb9942a1ac292fbb41501a66
Autor:
Ted E. Bunch, Malcolm A. LeCompte, A. Victor Adedeji, James H. Wittke, T. David Burleigh, Robert E. Hermes, Charles Mooney, Dale Batchelor, Wendy S. Wolbach, Joel Kathan, Gunther Kletetschka, Mark C. L. Patterson, Edward C. Swindel, Timothy Witwer, George A. Howard, Siddhartha Mitra, Christopher R. Moore, Kurt Langworthy, James P. Kennett, Allen West, Phillip J. Silvia
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-26 (2022)
Externí odkaz:
https://doaj.org/article/f87ed27eb5ac429489d7453d3d427f93
Autor:
Ted E. Bunch, Malcolm A. LeCompte, A. Victor Adedeji, James H. Wittke, T. David Burleigh, Robert E. Hermes, Charles Mooney, Dale Batchelor, Wendy S. Wolbach, Joel Kathan, Gunther Kletetschka, Mark C. L. Patterson, Edward C. Swindel, Timothy Witwer, George A. Howard, Siddhartha Mitra, Christopher R. Moore, Kurt Langworthy, James P. Kennett, Allen West, Phillip J. Silvia
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-64 (2021)
Abstract We present evidence that in ~ 1650 BCE (~ 3600 years ago), a cosmic airburst destroyed Tall el-Hammam, a Middle-Bronze-Age city in the southern Jordan Valley northeast of the Dead Sea. The proposed airburst was larger than the 1908 explosion
Externí odkaz:
https://doaj.org/article/4bb6d3b94fe84d1f8d674605165b16ec
Autor:
Robert E. Hermes, Hans-Rudolf Wenk, James P. Kennett, Ted E. Bunch, Christopher R. Moore, Malcolm A. LeCompte, Gunther Kletetschka, A. Victor Adedeji, Kurt Langworthy, Joshua J. Razink, Valerie Brogden, Brian Van Devener, Jesus Paulo Perez, Randy Polson, Matt Nowell, Allen West
Many studies of hypervelocity impact craters have described the characteristics of quartz grains shock-metamorphosed at high pressures of >10 GPa, but in contrast, few studies have investigated shock metamorphism at lower shock pressures. In this stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80aa48ddb40325bdcd25d52f6b47fc18
https://doi.org/10.20944/preprints202305.1728.v1
https://doi.org/10.20944/preprints202305.1728.v1
Autor:
Joanne P. Ballard, Victor Adedeji, Ted E. Bunch, Malcolm A. LeCompte, Brian Thomas, Wendy S. Wolbach, James H. Wittke, Paul Andrew Mayewski, Kenneth B. Tankersley, Adrian L. Melott, Isabel Israde-Alcántara, Siddhartha Mitra, John R. Johnson, William M. Napier, Allen West, Richard B. Firestone, Gunther Kletetschka, Christopher R. Moore, Andrei V. Kurbatov, George Howard, James P. Kennett, William C. Mahaney
Publikováno v:
The Journal of Geology. 128:95-107
Autor:
Malcolm A. LeCompte, Matthew Boyd, Alice M. Telka, James T. Teller, Roberto Garcia, Victor Adedeji, C. B. Mooney, James Kennett, Allen West, Aura Diaz, Dale Batchelor
Publikováno v:
Quaternary Research. 93:60-87
Multi-proxy analyses of a sequence spanning the Younger Dryas (YD) in the Glacial Lake Hind basin of Manitoba provides insight into regional paleohydrology and paleovegetation of meltwater rivers and lakes spanning >4000 yr; the sequence is controlle
Autor:
Timothy Witwer, James P. Kennett, Kurt Langworthy, Edward C. Swindel, Ted E. Bunch, George Howard, Malcolm A. LeCompte, Dale Batchelor, Phillip J. Silvia, Mark C. L. Patterson, Allen West, Joel Kathan, Siddhartha Mitra, C. B. Mooney, Christopher R. Moore, Wendy S. Wolbach, T. David Burleigh, James H. Wittke, Gunther Kletetschka, A. Victor Adedeji, Robert E. Hermes
Publikováno v:
Scientific Reports 11(1),. (2021)
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-64 (2021)
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-64 (2021)
We present evidence that in ~ 1650 BCE (~ 3600 years ago), a cosmic airburst destroyed Tall el-Hammam, a Middle-Bronze-Age city in the southern Jordan Valley northeast of the Dead Sea. The proposed airburst was larger than the 1908 explosion over Tun
Autor:
Alejandra Martel-Cea, Christopher R. Moore, Mario Pino, C. B. Mooney, Wendy S. Wolbach, R. Ximena Navarro, Allen West, María Paz Lira, Nathalie Cossio-Montecinos, Ana M. Abarzúa, James P. Kennett, Victor Adedeji, Giselle Astorga, Ted E. Bunch, Malcolm A. LeCompte, Rafael Labarca
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-27 (2019)
Scientific Reports
Scientific Reports
The Younger Dryas (YD) impact hypothesis posits that fragments of a large, disintegrating asteroid/comet struck North America, South America, Europe, and western Asia ~12,800 years ago. Multiple airbursts/impacts produced the YD boundary layer (YDB),
Autor:
A. Victor Adedeji, James P. Kennett, Ted E. Bunch, Andrew M. T. Moore, Malcolm A. LeCompte, Allen West, Michael W. Gaultois, Robert E. Hermes, James H. Wittke, Gunther Kletetschka, William M. Napier, James C. Weaver, Joshua J. Razink, Paul C. Hackley
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-22 (2020)
At Abu Hureyra (AH), Syria, the 12,800-year-old Younger Dryas boundary layer (YDB) contains peak abundances in meltglass, nanodiamonds, microspherules, and charcoal. AH meltglass comprises 1.6 wt.% of bulk sediment, and crossed polarizers indicate th