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Late Cenozoic climate change paces landscape adjustments to Yukon River capture

Increased river incision and landscape erosion can be attributed to late Cenozoic cooling/changes in hydroclimate, according to cosmogenic isotope and luminescence ages of a sequence of bedrock terraces in the Yukon River basin.

Adrian M. Bender
Richard O. Lease
Tammy M. Rittenour
Research20 Jul 2020
Nature Geoscience

Volume: 13, P: 571-575
New cosmogenic burial ages for Sterkfontein Member 2 Australopithecus and Member 5 Oldowan

Isochron burial dating with cosmogenic nuclides ²⁶Al and ¹⁰Be shows that the skeleton of the australopithecine individual known as ‘Little Foot’ is around 3.67 million years old, coeval with early Australopithecus from East Africa; a manuport dated to 2.18 million years ago from the Oldowan tool assemblage conforms with the oldest age previously suggested by fauna.

Darryl E. Granger
Ryan J. Gibbon
Marc W. Caffee
Research01 Apr 2015
Nature

Volume: 522, P: 85-88
¹⁰Be age constraints on latest Pleistocene and Holocene cirque glaciation across the western United States

Shaun A. Marcott
Peter U. Clark
Marc W. Caffee
ResearchOpen Access30 Jan 2019
npj Climate and Atmospheric Science

Volume: 2, P: 1-7
Extreme decay of meteoric beryllium-10 as a proxy for persistent aridity

Rachel D. Valletta
Jane K. Willenbring
Marc Caffee
ResearchOpen Access09 Dec 2015
Scientific Reports

Volume: 5, P: 1-7
Deep-water circulation changes lead North Atlantic climate during deglaciation

The response time of North Atlantic climate to changes in high-latitude deep-water formation during the last deglaciation is still unclear. Here the authors show that gradual changes in Nordic Seas deep-water circulation systematically lead ahead of abrupt regional climate shifts by ~400 years.

Francesco Muschitiello
William J. D’Andrea
Trond M. Dokken
ResearchOpen Access20 Mar 2019
Nature Communications

Volume: 10, P: 1-10
Greenland was nearly ice-free for extended periods during the Pleistocene

Measurements of cosmic-ray-produced ¹⁰Be and ²⁶Al in a bedrock core from beneath the summit of the Greenland Ice Sheet show that Greenland was nearly ice-free for extended periods under Pleistocene climate forcing.

Joerg M. Schaefer
Robert C. Finkel
Roseanne Schwartz
Research07 Dec 2016
Nature

Volume: 540, P: 252-255
Minimal East Antarctic Ice Sheet retreat onto land during the past eight million years

Analysis of cosmogenic isotopes from a marine sediment core shows that much of the land-based East Antarctic Ice Sheet has remained stable for the past eight million years, including during the warm Pliocene epoch.

Jeremy D. Shakun
Lee B. Corbett
Carling C. Hay
Research13 Jun 2018
Nature

Volume: 558, P: 284-287
A topographic hinge-zone divides coastal and inland ice dynamic regimes in East Antarctica

The Heimefrontfjella escarpment in Dronning Maud Land, East Antarctica divides inland precipitation-dominated ice dynamics from coastal dynamics dominated by grounding line migration, suggest inverse model simulations constrained by cosmogenic nuclide measurements.

Jane L. Andersen
Jennifer C. Newall
Arjen P. Stroeven
ResearchOpen Access05 Jan 2023
Communications Earth & Environment

Volume: 4, P: 1-12

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Late Cenozoic climate change paces landscape adjustments to Yukon River capture

New cosmogenic burial ages for Sterkfontein Member 2 Australopithecus and Member 5 Oldowan

¹⁰Be age constraints on latest Pleistocene and Holocene cirque glaciation across the western United States

Extreme decay of meteoric beryllium-10 as a proxy for persistent aridity

Deep-water circulation changes lead North Atlantic climate during deglaciation

Greenland was nearly ice-free for extended periods during the Pleistocene

Minimal East Antarctic Ice Sheet retreat onto land during the past eight million years

A topographic hinge-zone divides coastal and inland ice dynamic regimes in East Antarctica

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