AstroGeo channel

AstroGeo seminar of May 12, 2022 Geologic Time Through Re-Os Dating of Organic-Rich Shales by Holly Stein and Judith Hannah AIRIE Program, Colorado State University, USA Department of Geosciences, University of Oslo, Norway Abstract: Re-Os d...

The impact of Earth`s internal dynamics on the global gravity field and temporal evolution of its external elliptical figure Alessandro Forte , Marie Kajan and Petar Glišović Department of Geological Sciences, University of Florida, USA Institut d...

Building an astrochronological polarity time scale Dennis V. Kent Lamont-Doherty Earth Observatory, Columbia University & Earth and Planetary Sciences, Rutgers University Integrated geologic time scales developed in the 1990s from the sea-floor ...

The Status of Geological Evidence for Reconstructing Earth-Moon Dynamical Parameters Linda Hinnov Department of Atmospheric, Oceanic, and Earth Sciences George Mason UniversityFairfax, Virginia, USA Abstract: The evolution of the Earth-Moon sy...

U-Pb dating of the sedimentary record by Urs Schaltegger, University of Geneva U-Pb age determinations provide tie-points of absolute time in the sedimentary record, which then can be used as temporal anchors for other, floating timescales. The...

This is AstroGeo Seminar N°5. Strategy of a Geological Orrery. Paul Olsen from Lamont-Doherty Earth Observatory of Columbia University. The Geological Orrery is a network of long geological records of orbitally paced climate and complementary ge...

The year the day stood still or The continuing story of the resonance hypothesis and the evolution of the semi-diurnal atmospheric thermal tide on Earth by Kevin Zahnle NASA Ames Research Center, Moffett Field, CA, USA LaPlace (1825) understood...

The 100 kyr Glacial Cycle of the Late Quaternary Ice Age Glaciation Histories Constrained by Global Models of the Physical Process of Glacial Isostatic Adjustment . Online lecture by W Richard Peltier, Dept. of Physics, University of Toronto

The tidal evolution of the Earth-Moon System Mohammad Farhat IMCCE, Observatoire de Paris, PSL -University, Sorbonne Université, Paris, France We revisit the evolution history of the Earth-Moon distance. Available geological data provide snapsho...

The AstroGeo Workshop gathers every year the participants of the AstroGeo project (ERC Advanced Grant 885250). The two previous editions were in Erquy, France. This 2024 workshop was held at Paris Observatory. The AstroGeo project aims to use geol...

AstroGeo seminar. Pre-Cenozoic paleoclimate responses to astronomical forcing David De Vleeschouwer Westfälische Wilhelms-Universität (WWU) Münster Institute of Geology and Paleontology, Germany Astronomical insolation forcing is now well-estab...

Jacques Laskar, Mohammad Farhat, Matthias Sinnesael, Gwenaël Boué, Pierre Auclair-Desrotour, Mickaël Gastineau and Sem Bendjeddou IMCCE/Observatoire de Paris, Paris, France, presenter: Jacques Laskar presented online at the AGU on December 12, 20...

This is the 4th AstroGeo Seminar. In the continuation of the last talk of Dick Peltier, we have now the presentation of Giorgio Spada, on, Love numbers, the “sea-level equation” and the glacial isostatic adjustment problem by Giorgio Spada ...

First AstroGeo Seminar. This series intend to bring together geologists, geophysicists and astronomers involved in the search and understanding of the astronomical signal in the sedimentary record.

Eccentricity forcing on Pleistocene carbonate production and biological evolution Luc Beaufort CNRS-University Aix-Marseille (Laboratory CEREGE) Among the orbital cycles, the eccentricity is the one that has the most mysterious effects on the Ear...

Maëlis Arnould. Plate tectonics on Earth: observations, driving forces and temporal evolution. The present-day activity at the surface of our Planet is the result of heat transfer from its deep interior, and notably manifests as earthquakes, volc...

The 40Ar/39Ar dating: historical perspective and recent advances Sébastien Nomade CEA Saclay, Laboratoire des Sciences du Climat et de l’Environnement, UMR 8212, Université Versailles Saint-Quentin et Paris-Saclay Since the pioneer work of Merr...

The AstroGeo Seminar series intend to bring together geologists, geophysicists and astronomers involved in the search and understanding of the astronomical signal in the sedimentary record. In this episode, Steve Hesselbo reports the drilling tha...

AstroGeo Seminar : Where was the Moon? A fresh look at the tidal evolution of the early Earth-Moon system Jun Korenaga Department of Earth and Planetary Sciences, Yale University, USA The early evolution of the Earth-Moon system prescribes the ...

Climate and astronomy: from historical theories to future perspectives by Didier Paillard, LSCE, France. Since the invention of calendars by the first astronomers during the antiquity, it is quite natural to link climate and celestial mechanics....