Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Timothy J Bralower"'
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:
Francisco J. Rodríguez-Tovar, Pim Kaskes, Jens Ormö, Sean P. S. Gulick, Michael T. Whalen, Heather L. Jones, Christopher M. Lowery, Timothy J. Bralower, Jan Smit, David T. King, Steven Goderis, Philippe Claeys
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract To fully assess the resilience and recovery of life in response to the Cretaceous–Paleogene (K-Pg) boundary mass extinction ~ 66 million years ago, it is paramount to understand biodiversity prior to the Chicxulub impact event. The peak ri
Externí odkaz:
https://doaj.org/article/b83126ced3b54c769d3f1546d12ca245
Autor:
Charles S. Cockell, Bettina Schaefer, Cornelia Wuchter, Marco J. L. Coolen, Kliti Grice, Luzie Schnieders, Joanna V. Morgan, Sean P. S. Gulick, Axel Wittmann, Johanna Lofi, Gail L. Christeson, David A. Kring, Michael T. Whalen, Timothy J. Bralower, Gordon R. Osinski, Philippe Claeys, Pim Kaskes, Sietze J. de Graaff, Thomas Déhais, Steven Goderis, Natali Hernandez Becerra, Sophie Nixon, IODP-ICDP Expedition 364 Scientists
Publikováno v:
Frontiers in Microbiology, Vol 12 (2021)
We report on the effect of the end-Cretaceous impact event on the present-day deep microbial biosphere at the impact site. IODP-ICDP Expedition 364 drilled into the peak ring of the Chicxulub crater, México, allowing us to investigate the microbial
Externí odkaz:
https://doaj.org/article/1608c869e69c43bb888850d95d3605c3
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 Reviews Earth & Environment. 3:338-354
Publikováno v:
Paleoceanography and Paleoclimatology. 37
Autor:
Tali L. Babila, Donald E. Penman, Christopher D. Standish, Monika Doubrawa, Timothy J. Bralower, Marci M. Robinson, Jean M. Self-Trail, Robert P. Speijer, Peter Stassen, Gavin L. Foster, James C. Zachos
Publikováno v:
Science advances. 8(11)
The Paleocene-Eocene Thermal Maximum (PETM) is recognized by a major negative carbon isotope (δ 13 C) excursion (CIE) signifying an injection of isotopically light carbon into exogenic reservoirs, the mass, source, and tempo of which continue to be
Autor:
Sean P. S. Gulick, Allison T. Karp, Bettina Schaefer, Katherine H. Freeman, Kliti Grice, Joanna Morgan, S. L. Lyons, Timothy J. Bralower
Publikováno v:
Proc Natl Acad Sci U S A
An asteroid impact in the Yucatán Peninsula set off a sequence of events that led to the Cretaceous–Paleogene (K–Pg) mass extinction of 76% species, including the nonavian dinosaurs. The impact hit a carbonate platform and released sulfate aeros
Autor:
Christopher M. Lowery, Timothy J. Bralower, Heather L. Jones, Francisco J. Rodríguez-Tovar, Sean P. S. Gulick
Publikováno v:
Geology. 48:1048-1052
Previous ichnological analysis at the Chicxulub impact crater, Yucatán Peninsula, México (International Ocean Discovery Program [IODP]/International Continental Scientific Drilling Program [ICDP] Site M0077), showed a surprisingly rapid initial tra
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