Zobrazeno 1 - 10
of 16
pro vyhledávání: '"J. P. Briner"'
Autor:
K. K. Prince, J. P. Briner, C. K. Walcott, B. M. Chase, A. L. Kozlowski, T. M. Rittenour, E. P. Yang
Publikováno v:
Geochronology, Vol 6, Pp 409-427 (2024)
The timing of the last deglaciation of the Laurentide Ice Sheet in western New York is poorly constrained. The lack of direct chronology in the region has led to a hypothesis that the Laurentide Ice Sheet re-advanced to near its Last Glacial Maximum
Externí odkaz:
https://doaj.org/article/3e34433ea54f4c98a1cb74dceb24f5df
Publikováno v:
Climate of the Past, Vol 20, Pp 625-636 (2024)
Alpine glacier-based temperature reconstructions spanning the last deglaciation provide critical constraints on local to regional climate change and have been reported from several formerly glaciated regions around the world yet remain sparse from hi
Externí odkaz:
https://doaj.org/article/2a03ac568b2c4f83a6f419290c607bb5
Publikováno v:
Climate of the Past, Vol 20, Pp 91-106 (2024)
The lack of continental ice sheets in Alaska during the Last Glacial Maximum (LGM; 26–19 ka) has long been attributed to extensive aridity in the western Arctic. More recently, climate model outputs, a few isolated paleoclimate studies, and global
Externí odkaz:
https://doaj.org/article/65e9b1fad8b44d4d94a732be46a7ebd0
Autor:
G. H. Miller, S. L. Pendleton, A. Jahn, Y. Zhong, J. T. Andrews, S. J. Lehman, J. P. Briner, J. H. Raberg, H. Bueltmann, M. Raynolds, Á. Geirsdóttir, J. R. Southon
Publikováno v:
Climate of the Past, Vol 19, Pp 2341-2360 (2023)
Most extant ice caps mantling low-relief Arctic Canada landscapes remained cold based throughout the late Holocene, preserving in situ bryophytes killed as ice expanded across vegetated landscapes. After reaching peak late Holocene dimensions ∼1900
Externí odkaz:
https://doaj.org/article/2bddb4b9f9264238939ca132d243cdbd
Autor:
B. L. Graham, J. P. Briner, N. E. Young, A. Balter-Kennedy, M. Koppes, J. M. Schaefer, K. Poinar, E. K. Thomas
Publikováno v:
The Cryosphere, Vol 17, Pp 4535-4547 (2023)
Glacial erosion creates diagnostic landscapes and vast amounts of sediment. However, knowledge about the rate at which glaciers erode and sculpt bedrock and the proportion of quarried (plucked) versus abraded material is limited. To address this, we
Externí odkaz:
https://doaj.org/article/aecc9315c9b84b58a6b961d283bf9ccf
Autor:
J. P. Briner, C. K. Walcott, J. M. Schaefer, N. E. Young, J. A. MacGregor, K. Poinar, B. A. Keisling, S. Anandakrishnan, M. R. Albert, T. Kuhl, G. Boeckmann
Publikováno v:
The Cryosphere, Vol 16, Pp 3933-3948 (2022)
Direct observations of the size of the Greenland Ice Sheet during Quaternary interglaciations are sparse yet valuable for testing numerical models of ice-sheet history and sea level contribution. Recent measurements of cosmogenic nuclides in bedrock
Externí odkaz:
https://doaj.org/article/8b836063bbb74a5497db7e95c13b9c34
Publikováno v:
The Cryosphere, Vol 16, Pp 2355-2372 (2022)
Numerical simulations of the Greenland Ice Sheet (GrIS) over geologic timescales can greatly improve our knowledge of the critical factors driving GrIS demise during climatically warm periods, which has clear relevance for better predicting GrIS beha
Externí odkaz:
https://doaj.org/article/f2161e1c16a44c1ba80e04504dd527fb
Publikováno v:
Geochronology, Vol 4, Pp 191-211 (2022)
The late-Pleistocene history of the coastal Cordilleran Ice Sheet remains relatively unstudied compared to chronologies of the Laurentide Ice Sheet. Yet accurate reconstructions of Cordilleran Ice Sheet extent and the timing of ice retreat along the
Externí odkaz:
https://doaj.org/article/a035d9525fc04d3abdc5c579f46b650d
Autor:
S. Funder, A. H. L. Sørensen, N. K. Larsen, A. A. Bjørk, J. P. Briner, J. Olsen, A. Schomacker, L. B. Levy, K. H. Kjær
Publikováno v:
Climate of the Past, Vol 17, Pp 587-601 (2021)
To date the final stage in deglaciation of the Greenland shelf, when a contiguous ice sheet margin on the inner shelf transitioned to outlet glaciers in troughs with intervening ice-free areas, we generated cosmogenic 10Be dates from bedrock knobs on
Externí odkaz:
https://doaj.org/article/aac0aecf562f48f59a90c83b6a928a12
Autor:
N. E. Young, A. J. Lesnek, J. K. Cuzzone, J. P. Briner, J. A. Badgeley, A. Balter-Kennedy, B. L. Graham, A. Cluett, J. L. Lamp, R. Schwartz, T. Tuna, E. Bard, M. W. Caffee, S. R. H. Zimmerman, J. M. Schaefer
Publikováno v:
Climate of the Past, Vol 17, Pp 419-450 (2021)
Sometime during the middle to late Holocene (8.2 ka to ∼ 1850–1900 CE), the Greenland Ice Sheet (GrIS) was smaller than its current configuration. Determining the exact dimensions of the Holocene ice-sheet minimum and the duration that the ice ma
Externí odkaz:
https://doaj.org/article/b3d2a184b3204d7385753d3927eb9fdb