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granite

A grayscale image of the Moon’s surface shows bumps, ridges, and craters on the Moon’s farside.
Posted inNews

Rare Granite Body Discovered on Moon’s Farside

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 16 August 202316 August 2023

The granite couldn’t have formed the same way that it does on Earth—with liquid water and plate tectonics. So how did it get there?

A tan and brown striped rock surface with a fault running through the middle
Posted inResearch Spotlights

Rougher Faults May Generate More Earthquake Aftershocks

Sarah Stanley, Science Writer by Sarah Stanley 1 May 20231 May 2023

Lab experiments on pieces of granite reflect natural aftershock dynamics and highlight the role of rock roughness along a fault.

Grayscale scanning electron microscope image of an unpolished tetrahedral zircon crystal with two laser ablation pits, each between 25 and 30 micrometers in diameter
Posted inNews

Vestiges of a Volcanic Arc Hidden Within Chicxulub Crater

by Alka Tripathy-Lang 15 June 202129 September 2022

Scientists discovered magmatic remnants of a volcanic arc by dating granitic rocks of the middle crust excavated by, and hidden within, the Chicxulub impact crater.

Two men fish in the Mekong River.
Posted inNews

How Old Is the Mekong River Valley?

Katherine Kornei, Science Writer by Katherine Kornei 22 October 201823 February 2023

Granite samples collected from the Mekong River Valley reveal that the river’s path was incised roughly 17 million years ago, most likely by increased erosion from monsoon precipitation.

Asteroid strikes Earth 65 million years ago
Posted inNews

Cores from Crater Tied to Dinosaur Demise Validate Impact Theory

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 17 November 201628 January 2022

Drilling into the famous, deeply buried Chicxulub crater off Mexico, researchers found deformed and porous granite that opens new avenues of research.

A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

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