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stratigraphy

Photograph of a plastiglomerate, a rock made from pieces of trash and other natural debris. This example includes pieces of white, green, and yellow rope intermingled with sediment.
Posted inNews

The Difficulty of Defining the Anthropocene

by Alka Tripathy-Lang 29 March 202122 August 2023

Humans may be in a new geologic epoch—the Anthropocene—but different groups define its start at varied times. When should the Anthropocene have begun?

St. Barthélemy Island, viewed from the Coco Islet
Posted inScience Updates

By Land or Sea: How Did Mammals Get to the Caribbean Islands?

by P. Münch, P.-O. Antoine and B. Marcaillou 19 November 202022 August 2023

A multidisciplinary team is jointly investigating mammal evolution and subduction dynamics to unravel how flightless land mammals migrated to the Greater Antilles and other Caribbean islands.

Layers of sediment are exposed on a hillslope in the Bighorn Basin of Wyoming.
Posted inResearch Spotlights

Tracing the Past Through Layers of Sediment

Aaron Sidder, freelance science writer by Aaron Sidder 1 May 202022 August 2023

Signals in layers of sedimentary rock hint at climates and ecosystems come and gone. Understanding this history can help us forecast the future, but challenges abound.

Satellite image of a city between a volcano and a lake
Posted inNews

Eruption in El Salvador Was One of the Holocene’s Largest

Katherine Kornei, Science Writer by Katherine Kornei 5 June 201922 August 2023

Roughly 1,500 years ago, the Tierra Blanca Joven eruption blanketed Central America in ash and likely displaced Maya settlements, new research shows.

Chemostratigraphy is a comparatively new method for the characterization and interpretation of rock records over different periods of geologic time
Posted inEditors' Vox

Unravelling the Past Using Elements and Isotopes

by A. N. Sial, C. Gaucher, M. Ramkumar and V. P. Ferreira 12 February 201922 August 2023

A new book explores chemostratigraphy, a fascinating and relatively young branch of geoscience, presenting the latest developments and applications.

Posted inEditors' Vox

Here Comes the Anthropocene

by B. van der Pluijm 7 September 201624 January 2024

Two recent papers in Earth's Future discuss the addition of a new epoch to the geological timescale.

"Ivy Mike" nuclear test conducted in 1952 by the United States.
Posted inNews

Scientific Study Group Favors Recognizing Human-Influenced Epoch

by Randy Showstack 1 September 201622 August 2023

A formal proposal could take 3–4 years to prepare and then would require evaluation and approval by other scientists.

Pannonian-Basin-Miocene-extension-greater-than-previously-thought
Posted inResearch Spotlights

Unraveling the History of Central Europe's Pannonian Basin

by Terri Cook 12 August 201622 August 2023

A multidisciplinary model linking the sedimentary and tectonic histories of this structurally complex basin suggests that large amounts of extension occurred there between 20 and 9 million years ago.

Posted inOpinions

What Is the Anthropocene?

by L. E. Edwards 30 November 201522 August 2023

Geologists must consider whether the Anthropocene is a specific segment in the continuum of time or a holistic concept.

Posted inScience Updates

Climate and Ocean Dynamics During the Cretaceous

by M. Sprovieri 27 March 201522 August 2023

Exploring the Cretaceous World with Data and Numerical Models; Capo Granitola, 2–4 October 2014

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Heat and Pollution Events Are Deadly, Especially in the Global South

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Editors' Highlights

Resilient Solutions Involve Input and Data from the Community

14 May 202514 May 2025
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Decoding Crop Evapotranspiration

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