Dating a late Pleistocene eruption has big implications for understanding the Younger Dryas—and current climate change.
geochronology
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Structural Inversion of an Intracratonic Rift System in Deep Time
A new study reconstructs how an ancient North American rift system was uplifted in space and time due to subsequent continent-continent collision.
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From Sandstone Basin to Stonehenge Altar
New research unearths the Scottish origin of Stonehenge’s Altar Stone and its 750-kilometer journey to Salisbury Plain.
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Unlocking Earth’s Terrestrial Sedimentary Record with Paleosols
Harnessing the micro-stratigraphy of pedogenic carbonates, scientists have demonstrated that age determination of fossil soils is possible via uranium-lead dating.
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Greenland Could Have Records of 3.7-billion-year-old Geomagnetic Fields
Scientists argue that paleomagnetic field tests preserve a geomagnetic field record acquired as chemical remnant magnetization in banded iron formations in southwest Greenland.
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Carbon Dating Reveals the Timing of Puerto Rican Cave Art
New dates from cave art pigment add to evidence that Indigenous Puerto Ricans inhabited the island for millennia.
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Ultra-High-Resolution Age Model in Clams Yields Daily Paleo-Data
Using geochemical techniques, scientists identify daily cycles in fossilized giant clams, which permits climate reconstructions at the weather timescale.
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Paleostorm Chasers Test a New Detection Tool
A method typically used to date sediments shows promise for documenting tropical storms through history—information needed for future projections of storm activity.
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Deciphering the History of a Rock’s Crystallization
By combining a phase field function approach with bulk thermodynamics of mineral phases, the thermal history of a rock can now be deciphered from its distribution of mineral phases.
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Scotland’s Last Glaciers Cause a Shift in an Old Paradigm
Cosmogenic geochronology of Scotland’s vanished glaciers indicates that the paradigm of weakened North Atlantic currents causing a rapid regional cooling is no longer valid.