Geophysical Monograph Series, Page 305-323., 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.
Brian Kendall +2 more
wiley +3 more sources
Chamber-by-Chamber Measurements of Planktonic Foraminiferal Mg, Sr, and Na to Ca Ratios With Femtosecond LA-ICP-MS. [PDF]
Rapid Commun Mass SpectromABSTRACT Rationale Distribution patterns of foraminifera are controlled by environmental parameters such as temperature, salinity, and nutrient concentrations in each water mass. Since trace elements to Ca ratios of marine microfossil calcite test of foraminifera record environmental and ecological habitat information, we used femtosecond (fs) LA‐ICP ...
Yoshimura T +7 more
europepmc +2 more sources
Almost billfish: convergent longirostry, micro-dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy. [PDF]
J AnatA fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Serafini G +5 more
europepmc +2 more sources
Fountain Journal of Natural and Applied Sciences (FUJNAS), 2023 Biostratigraphic analysis was carried out on KA-1 well, onshore Niger Delta Basin of Nigeria. A total of forty (40) ditch cutting samples were collected from the studied section at 30 feet depth intervals with the studied section ranging from 7590 ...
Kabirat Adebiyi +2 more
doaj +3 more sources
Global record of “ghost” nannofossils reveals plankton resilience to high CO2 and warming
Science, 2022 Predictions of how marine calcifying organisms will respond to climate change rely heavily on the fossil record of nannoplankton. Declines in calcium carbonate (CaCO3) and nannofossil abundance through several past global warming events have been ...
S. Slater +4 more
semanticscholar +1 more source
The role of calcareous nannofossils in building age models for Cenozoic marine sediments: a review
Rendiconti Lincei SCIENZE FISICHE E NATURALI, 2022 This review paper has been thought to emphasize the role of Biostratigraphy in Geosciences and, specifically, of calcareous nannofossils as dating tool. This group of calcareous plankton occurs in Mesozoic and Cenozoic carbonate-bearing marine sediments ...
I. Raffi, J. Backman
semanticscholar +1 more source
Calcareous Nannofossils from the Shiranish Formation at Bekhaer anticline, Dhouk area, Northern Iraq
Tikrit Journal of Pure Science, 2022 Calcareous nannofossils are examined up on the Shiranish Formation from the Bekhaer anticline in Northern Iraq. The study area includes about 55 meters to find calcareous nannofossils assemblages, from which (36) species have identified.
Omar A. Al-Badrani +2 more
doaj +1 more source
Newsletters on stratigraphy, 2022 The Eocene–Oligocene transition (EOT; ca. 34–33.5 Ma) represents a key point in Cenozoic climatic evolution, marking the onset of a semipermanent ice sheet on Antarctica and a major step from a greenhouse to icehouse climate state (e.g. Coxall & Pearson,
A. Viganò +5 more
semanticscholar +1 more source
The Cretaceous/Paleogene (K/Pg) boundary in the Mezdra and Lyutidol syncline, Vratza District (West-Fore Balkan, Bulgaria) [PDF]
Geološki Anali Balkanskoga Poluostrva, 2006 This paper discusses the unjustified assignment (based on calcareous nannofossils) of a large portion of the Maastrichtian strata in the Mezdra and Lyutidol synclines (West Fore Balkan, Bulgaria) to the Paleogene.
Jolkičev Nikola A.
doaj +1 more source
The Calcium Isotope (δ44/40Ca) Record Through Environmental Changes: Insights From the Late Triassic
Geochemistry, Geophysics, Geosystems, 2022 Calcium isotopes (δ44/40Ca) are particularly useful in palaeo‐environmental studies due to the key role of carbonate minerals in continental weathering and their formation in seawater.
Zsófia Kovács +7 more
doaj +1 more source