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Terri Cook

Terri Cook is an award-winning freelance writer whose career has focused on exploring and explaining the 4.5-billion-year-history of the remarkable planet we live on. Cook, who has an M.S. degree in Earth science from the University of California, Santa Cruz, writes about geology, ecology, and the environment—as well as wine, tea, hiking, and biking—for a diverse group of publications, including Eos, Scientific American, NOVA Next, Science News, and EARTH magazine, as well as Avalon Travel and numerous other travel-related publications. Her reporting has taken her to 25 states and 20 countries scattered across 5 continents, from the depths of the Grand Canyon to the sandy Australian Outback to the mist-shrouded summit of Bali’s Mount Batur. As the coauthor of three popular guidebooks, including Hiking the Grand Canyon’s Geology and Geology Underfoot Along Colorado’s Front Range, Cook gives frequent presentations about geology and science communication. She is the recipient of a 2016 European Geosciences Union Science Journalism Fellowship and is based in beautiful Boulder, Colo.

Researchers examine what amount of a river’s nutrient supply reaches the ocean.
Posted inResearch Spotlights

What Proportion of River Nutrients Reaches the Open Sea?

by Terri Cook 22 February 201724 February 2023

Results of the first geographically based estimates of river nutrient supply indicate that 75% of dissolved nitrogen and 80% of phosphorus reach the open ocean.

Researchers trace boron in fluids released by subducting slabs to assess how tectonic plates and ocean waters interact at subduction zones.
Posted inResearch Spotlights

Fingerprinting the Source of Fore-Arc Fluids

by Terri Cook 9 February 20178 February 2023

A new model tracks boron and other tracers in fluids expelled from subducting slabs to help identify the fluids' source regions and migration routes.

Mineral layers offer a key to examine the behavior of individual magma pulses in volcanic arcs.
Posted inResearch Spotlights

Pulses of Rising Magma in Sierra Nevada's Past

by Terri Cook 3 February 20177 March 2023

A detailed study of layered igneous material at California's Fisher Lake offers a novel approach to identifying the pathways and timescales of individual magma pulses in volcanic arcs.

Researcher track variations in the pace of thinning in Amundsen Sea glaciers
Posted inResearch Spotlights

A Comparison of Surface Thinning in West Antarctic Glaciers

by Terri Cook 24 January 20177 February 2023

An uninterrupted 24-year altimetry record of Amundsen Sea Embayment glaciers indicates the initiation and pace of thinning have been inconsistent across the region.

Researchers pinpoint differences in fracture energy and rupture mechanisms between deep and shallow earthquakes.
Posted inResearch Spotlights

Probing the Source Properties of Deep Earthquakes

by Terri Cook 19 December 201610 March 2022

A global review of earthquake rupture parameters reveals that deep earthquakes have larger fracture energies and may have different rupture mechanisms than shallower seismic events.

Posted inResearch Spotlights

Earth's Carbon-Climate Feedbacks Varied in Past Warming Episodes

by Terri Cook 29 November 201626 January 2023

Records from drill holes in the eastern equatorial Pacific indicate that Earth's orbital eccentricity played an important role in controlling climate as the planet warmed.

Studying volcanic eruptions in Iceland lends insight into the mantle temperature below.
Posted inResearch Spotlights

A Significantly Hotter Mantle Beneath Iceland

by Terri Cook 18 November 20164 August 2023

Estimates of crystallization temperatures from four eruptions in northern Iceland offer improved constraints on the mantle's temperature beneath this anomalous divergent plate boundary.

Posted inResearch Spotlights

Tracing the North Atlantic's Bottom Waters

by Terri Cook 16 November 20163 June 2024

Chemicals released by two European nuclear fuel reprocessing plants, along with certain chlorofluorocarbons, are helping to constrain the speed and behavior of North Atlantic deep-ocean circulation.

Researchers think the depth of hollows on Mercury’s surface aren’t determined by the volatile-rich outer layer on the planet surface.
Posted inResearch Spotlights

Unprecedented Views of Mercury Constrain Hollow Formation

by Terri Cook 10 November 201625 August 2022

The consistently shallow depths of the depressions scattered across Mercury's surface suggest their morphology is not determined by the thickness of a volatile-rich outer layer.

Bay-of-Bengal-complex-tectonic-history
Posted inResearch Spotlights

Deciphering the Bay of Bengal's Tectonic Origins

by Terri Cook 22 August 20164 May 2022

New magnetic and gravity data suggest that the boundary between continental and oceanic crust lies beneath northern Bangladesh, along the line of an Early Cretaceous spreading center.

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Research Spotlights

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15 August 202514 August 2025
Editors' Highlights

NASA Mission Creates a New Global Coastal Bathymetry Product

14 August 202514 August 2025
Editors' Vox

Early-Career Book Publishing: Growing Roots as Scholars

6 August 202530 July 2025
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