Results 1 to 10 of about 405 (163)
Astrochronology of the Paleocene-Eocene Thermal Maximum on the Atlantic Coastal Plain [PDF]
Nature Communications, 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.
Mingsong Li +2 more
exaly +9 more sources
Bayesian integration of astrochronology and radioisotope geochronology [PDF]
Geochronology, 2022 Relating stratigraphic position to numerical time using age–depth models plays an important role in determining the rate and timing of geologic and environmental change throughout Earth history.
R. B. Trayler +4 more
doaj +4 more sources
Middle Ordovician astrochronology decouples asteroid breakup from glacially-induced biotic radiations. [PDF]
Nat Commun, 2021 The Middle Ordovician icehouse has been suggested to be sparked by extra-terrestrial dust associated with an asteroid break-up. Here, the authors use an astronomically calibrated timescale to decouple millennia-scale climate and biodiversity change from ...
Rasmussen JA +2 more
europepmc +2 more sources
Reinforcing the North Atlantic backbone: revision and extension of the composite splice at ODP Site 982 [PDF]
Climate of the Past, 2018 Ocean Drilling Program (ODP) Site 982 represents a key location for understanding the evolution of climate in the North Atlantic over the past 12 Ma.
A. J. Drury +3 more
doaj +3 more sources
Frontiers in Earth Science, 2020 This research analyzes the cyclostratigraphy of the lacustrine Dabeigou Formation (DBG) of early Jehol Biota age (∼130–135 Ma) in the Luanping Basin, northern China.
Wei Liu +8 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 Tectonic, paleoenvironmental, and paleoclimatic unstable conditions preceding the onset of the Messinian Salinity Crisis (MSC) highly affected marine life. Changes in calcareous plankton association are overall registered in the Mediterranean.
Rosanna Maniscalco +10 more
doaj +1 more source
The Astronomical Journal, 2023 Reliable studies of the long-term dynamics of planetary systems require numerical integrators that are accurate and fast. The challenge is often formidable because the chaotic nature of many systems requires relative numerical error bounds at or close to
Richard E. Zeebe
doaj +1 more source
Energies, 2023 The late Eocene succession of the Dongying Depression forms a highly productive hydrocarbon source. However, due to lack of an unambiguous fine chronostratigraphic framework for the late Eocene stratigraphy, it is challenging to understand the paleolake ...
Zhongheng Sun +4 more
doaj +1 more source
Synchronizing early Eocene deep-sea and continental records – cyclostratigraphic age models for the Bighorn Basin Coring Project drill cores [PDF]
Climate of the Past, 2018 A consistent chronostratigraphic framework is required to understand the effect of major paleoclimate perturbations on both marine and terrestrial ecosystems.
T. Westerhold +7 more
doaj +1 more source
Astronomical calibration of the Ypresian timescale: implications for seafloor spreading rates and the chaotic behavior of the solar system? [PDF]
Climate of the Past, 2017 To fully understand the global climate dynamics of the warm early Eocene with its reoccurring hyperthermal events, an accurate high-fidelity age model is required.
T. Westerhold +6 more
doaj +1 more source