Zobrazeno 1 - 10
of 189
pro vyhledávání: '"Lee R. Kump"'
Autor:
Jack Salisbury, Darren R. Gröcke, H. D. R. Ashleigh Cheung, Lee R. Kump, Tom McKie, Alastair Ruffell
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract Despite the extensive use of sulphur isotope ratios (δ34S) for understanding ancient biogeochemical cycles, many studies focus on specific time-points of interest, such as the end-Permian mass extinction (EPME). We have generated an 80 mill
Externí odkaz:
https://doaj.org/article/b423ade0f8bf4222a337e21829b718af
Autor:
Mingsong Li, Timothy J. Bralower, Lee R. Kump, Jean M. Self-Trail, James C. Zachos, William D. Rush, Marci M. Robinson
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-13 (2022)
Astrochronology of a core in Maryland suggests that the onset of the Paleocene-Eocene Thermal Maximum (PETM) warming lasted about 6 thousand years. These data are more consistent with astronomical forcing than an extraterrestial trigger for the PETM.
Externí odkaz:
https://doaj.org/article/df358dd89216494abcc5f5ba7aa60e23
Autor:
Seyi Ajayi, Lee R. Kump, Andy Ridgwell, Sandra Kirtland Turner, Carling C. Hay, Timothy J. Bralower
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 3, Pp n/a-n/a (2020)
Abstract Variations in sedimentation rate, bioturbation, winnowing, and dissolution modify the deep‐sea sedimentary record, complicating the apparent relationship between stratigraphic depth and time of a geochemical proxy record and confounding th
Externí odkaz:
https://doaj.org/article/82ab73f86fd34119945dfbd36ea28a06
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
Single-foraminifera measurements of the PETM carbon isotope excursion from Maud Rise have been interpreted as indicating geologically instantaneous carbon release. Here, the authors explain these records using an Earth system model and a sediment-mix
Externí odkaz:
https://doaj.org/article/629c5dc3f50b43d99606db694ed0eff9
Publikováno v:
Oceanography, Vol 22, Iss 4, Pp 94-107 (2009)
Is there precedence in Earth history for the rapid release of carbon dioxide (CO2) by fossil-fuel burning and its environmental consequences? Proxy evidence indicates that atmospheric CO2 concentrations were higher during long warm intervals in the g
Externí odkaz:
https://doaj.org/article/434033cfdbee46f991425d8d3db5170f
Whiting events-the episodic precipitation of fine-grained suspended calcium carbonates in the water column-have been documented across a variety of marine and lacustrine environments. Whitings likely are a major source of carbonate muds, a constituen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03666943ebe35df04604221b95bf16b5
https://doi.org/10.1111/gbi.12534
https://doi.org/10.1111/gbi.12534
Publikováno v:
Paleoceanography and Paleoclimatology. 36
Publikováno v:
Computers & Geosciences. 127:12-22
Recognition and interpretation of paleoclimate signals in sedimentary proxy datasets are time consuming and subjective. Acycle is a comprehensive and easy-to-use software package for time series analysis in paleoclimate research and education. It is
Autor:
Allison A. Baczynski, Tali L. Babila, James C Zachos, Katherine H. Freeman, Lee R. Kump, S. M. Trampush, Ellen G. Polites, Timothy J. Bralower, Jean M. Self-Trail, Elizabeth Hajek, Jamie R. Vornlocher, S. L. Lyons
Publikováno v:
Nature Geoscience. 12:54-60
A hallmark of the rapid and massive release of carbon during the Palaeocene–Eocene Thermal Maximum is the global negative carbon isotope excursion. The delayed recovery of the carbon isotope excursion, however, indicates that CO2 inputs continued w
Autor:
S. L. Lyons, Tali L. Babila, Timothy J. Bralower, Jean M. Self-Trail, Lee R. Kump, William Rush, Katherine H. Freeman, Elizabeth Hajek, Marci M. Robinson, James C Zachos, Edward Ballaron
Publikováno v:
Paleoceanography and Paleoclimatology. 33:1408-1426
A transect of paleoshelf cores from Maryland and New Jersey contains an ~0.19‐ to 1.61‐m‐thick interval with reduced percentages of carbonate during the onset of the Paleocene‐Eocene Thermal Maximum (PETM). Outer paleoshelf cores are barren o