Zobrazeno 1 - 10
of 341
pro vyhledávání: '"G. Winckler"'
Autor:
J. L. Middleton, J. Gottschalk, G. Winckler, J. Hanley, C. Knudson, J. R. Farmer, F. Lamy, L. E. Lisiecki
Publikováno v:
Geochronology, Vol 6, Pp 125-145 (2024)
Paleoceanographic interpretations of Plio-Pleistocene climate variability over the past 5 million years rely on the evaluation of event timing of proxy changes in sparse records across multiple ocean basins. In turn, orbital-scale chronostratigraphic
Externí odkaz:
https://doaj.org/article/80da90e271344ec7b25f8402f8db2711
Autor:
A. Balter-Kennedy, J. M. Schaefer, R. Schwartz, J. L. Lamp, L. Penrose, J. Middleton, J. Hanley, B. Tibari, P.-H. Blard, G. Winckler, A. J. Hidy, G. Balco
Publikováno v:
Geochronology, Vol 5, Pp 301-321 (2023)
Here, we present cosmogenic-10Be and cosmogenic-3He data from Ferrar dolerite pyroxenes in surficial rock samples and a bedrock core from the McMurdo Dry Valleys, Antarctica, with the goal of refining the laboratory methods for extracting beryllium f
Externí odkaz:
https://doaj.org/article/d5a14dc692d848da803f3acd24109377
Publikováno v:
Climate of the Past, Vol 18, Pp 147-166 (2022)
Changes in Southern Ocean export production have broad biogeochemical and climatic implications. Specifically, iron fertilization likely increased subantarctic nutrient utilization and enhanced the efficiency of the biological pump during glacials. H
Externí odkaz:
https://doaj.org/article/d714cb03bc3e42028d7b5f1e76e04f4a
Publikováno v:
Geochronology, Vol 3, Pp 505-523 (2021)
The preservation of cosmogenic nuclides that accumulated during periods of prior exposure but were not subsequently removed by erosion or radioactive decay complicates interpretation of exposure, erosion, and burial ages used for a variety of geomorp
Externí odkaz:
https://doaj.org/article/eff371f5d6414b03b17ac2cbf7ae172e
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
During glacial periods the oceans stored carbon removed from the atmosphere, yet identifying precisely where that storage occurred remains challenging. Here, the authors show that the deep equatorial Pacific Ocean was a reservoir for respired carbon
Externí odkaz:
https://doaj.org/article/e2788df229de4e16a7286c60d185d191
Autor:
S. R. Eaves, A. N. Mackintosh, B. M. Anderson, A. M. Doughty, D. B. Townsend, C. E. Conway, G. Winckler, J. M. Schaefer, G. S. Leonard, A. T. Calvert
Publikováno v:
Climate of the Past, Vol 12, Iss 4, Pp 943-960 (2016)
Quantitative palaeoclimate reconstructions provide data for evaluating the mechanisms of past, natural climate variability. Geometries of former mountain glaciers, constrained by moraine mapping, afford the opportunity to reconstruct palaeoclimate, d
Externí odkaz:
https://doaj.org/article/d822283e9f11458196f6d02824b09969
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
The extent to which the location of the Intertropical Convergence Zone (ITCZ)—a primary influence over tropical hydrology—varied in the past remains uncertain. Here, the authors use a transect of marine sediment cores to quantify latitudinal migr
Externí odkaz:
https://doaj.org/article/d8e2741962e34924b1ea293d33ddb813
Autor:
S. Albani, N. M. Mahowald, G. Winckler, R. F. Anderson, L. I. Bradtmiller, B. Delmonte, R. François, M. Goman, N. G. Heavens, P. P. Hesse, S. A. Hovan, S. G. Kang, K. E. Kohfeld, H. Lu, V. Maggi, J. A. Mason, P. A. Mayewski, D. McGee, X. Miao, B. L. Otto-Bliesner, A. T. Perry, A. Pourmand, H. M. Roberts, N. Rosenbloom, T. Stevens, J. Sun
Publikováno v:
Climate of the Past, Vol 11, Iss 6, Pp 869-903 (2015)
Mineral dust plays an important role in the climate system by interacting with radiation, clouds, and biogeochemical cycles. In addition, natural archives show that the dust cycle experienced variability in the past in response to global and local c
Externí odkaz:
https://doaj.org/article/32dc7e0523464df2bc286e3740921a71
Publikováno v:
Climate of the Past, Vol 6, Iss 2, Pp 265-272 (2010)
The Paleocene-Eocene Thermal Maximum (PETM) occurred approximately 55 million years ago, and is one of the most dramatic abrupt global warming events in the geological record. This warming was triggered by the sudden release of thousands of gigatons
Externí odkaz:
https://doaj.org/article/983fa55cde5148bfb4568933b18a43ea
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