A5014322020- Geology and Paleoclimatology Research
- Polar Research and Ecology
- Cryospheric studies and observations
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Planetary Science and Exploration
- Hydrocarbon exploration and reservoir analysis
- Evolution and Paleontology Studies
- Geological Studies and Exploration
- High-pressure geophysics and materials
- Geological formations and processes
- Pleistocene-Era Hominins and Archaeology
- Ocean Acidification Effects and Responses
- Geomagnetism and Paleomagnetism Studies
- Atmospheric and Environmental Gas Dynamics
- Geological Modeling and Analysis
- Climate change and permafrost
- Space Science and Extraterrestrial Life
- Marine and Offshore Engineering Studies
- Space Exploration and Technology
- Spaceflight effects on biology
- Isotope Analysis in Ecology
- Clay minerals and soil interactions
Istituto Nazionale di Geofisica e Vulcanologia
2023
University of Siena
2005-2023
Geological records from the Antarctic margin offer direct evidence of environmental variability at high southern latitudes and provide insight regarding ice sheet sensitivity to past climate change. The early mid-Miocene (23-14 Mya) is a compelling interval study as global temperatures atmospheric CO2 concentrations were similar those projected for coming centuries. Importantly, this time includes Miocene Climatic Optimum, period warmth during which average surface 3-4 °C higher than today....
Sensitive ice sheets Why did the Antarctic Ice Sheet begin to grow 34 million years ago, and what does that have do with us? Galeotti et al. studied a marine sediment core recovered from just off coast of Antarctica (see Perspective by Lear Lunt). The sheet not until atmospheric CO 2 concentrations had dropped below around 600 parts per million. Indeed, was unstable when higher. As modern continue their rise, shift back an could increase harmful rises in sea level. Science , this issue p. 76...
Between Permian to Triassic, the Earth experienced climatic and biotic crises, included greatest mass extinction at Permian-Triassic boundary. These biological changes are reflected in both marine terrestrial depositional systems. Over this time span, Gondwana supercontinent hosted numerous large basins that may preserve paleoenvironment response global sedimentary record. This study provides a lithostratigraphic reappraisal of latest Paleozoic-Mesozoic alluvial Beacon Supergroup Allan Hills...