Results 11 to 20 of about 19,323 (228)
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +13 more sources
Geologica Acta, 2020 A taxonomic study of the larger foraminifera found in Paleocene rocks from the Pyrenean basin has led to the description of sixty taxa including two new species: Alveolina korresensis and Valvulineria bacetai.
J. Serra-Kiel +4 more
doaj +13 more sources
Constraints on the Numerical Age of the Paleocene-Eocene Boundary [PDF]
Geochemistry, Geophysics, Geosystems, 2011 Here we present combined radio-isotopic dating (U-Pb zircon) and cyclostratigraphic analysis of the carbon isotope excursion at the Paleocene/Eocene (P/E) boundary in Spitsbergen, to determine the numerical age of the boundary.
Lee Kump +2 more
exaly +2 more sources
Shiyou shiyan dizhi, 2022 Thickly developed Paleocene volcanic rocks in the southwestern Huizhou Sag of the Pearl River Mouth Basin are continuously filled with lacustrine sedimentary rocks of the overlying Eocene Wenchang Formation in the sag, forming the main rock formations in
Xucheng WANG +4 more
doaj +1 more source
Could changing ocean circulation have destabilized methane hydrate at the Paleocene/Eocene boundary? [PDF]
, 2002 During the Paleocene-Eocene Thermal Maximum (PETM, ~55 Ma), marine and terrestrial carbon isotope values exhibit a negative shift of at least 2.5‰, indicative of massive destabilization of marine methane hydrates, releasing ~1100 gigatonnes of methane ...
Marotzke, J. ; https://orcid.org/ +3 more
core +1 more source
Climate model and proxy data constraints on ocean warming across the Paleocene-Eocene Thermal Maximum [PDF]
, 2013 Constraining the greenhouse gas forcing, climatic warming and estimates of climate sensitivity across ancient large transient warming events is a major challenge to the palaeoclimate research community.
Lunt, Daniel J. +17 more
core +1 more source
Литосфера, 2017 Factors and stages of biogenic siliceous accumulation rocks in the Transuralian region and Western Siberiain during Early Cenozoic. Analysis, systematization, generalization of lithological and paleontological data on the basis of geological survey and ...
Pavel V. Smirnov +1 more
doaj +1 more source
Scaled biotic disruption during early Eocene global warming events [PDF]
, 2012 Late Paleocene and early Eocene hyperthermals are transient warming events associated with massive perturbations of the global carbon cycle, and are considered partial analogues for current anthropogenic climate change.
Murphy, B.H. +34 more
core +2 more sources
Remote Sensing, 2019 Visible through shortwave (VSWIR) spectral reflectance of the geologic units across the basal Tertiary nonconformity (BTN) is characterized at three spatially disparate locations in California. At two of these sites, location-specific spectral endmembers
Francis J. Sousa, Daniel J. Sousa
doaj +1 more source
Rivista Italiana di Paleontologia e Stratigrafia, 2022 Deep-water agglutinated foraminifera (DWAF) are investigated from the lower Paleocene of the Contessa Highway Paleocene (CHP) section in the Umbria-Marche Basin in Italy.
SYOUMA HIKMAHTIAR +2 more
doaj +1 more source