impact structure
Americannoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The petroglyphs were found in the Vredefort impact structure, a 186-mile wide crater in South Africa that was formed by an asteroid strike around 2 billion years ago.
From Fox News • Jun. 18, 2019
“What is most interesting scientifically in the impact structure are the so-called ‘Granophyre Dikes’,” he added.
From Fox News • Jun. 18, 2019
One distinct possibility is that it's the dispersed remains of a nickel-iron core from the giant object that likely slid into the Moon to make the original impact structure some 4 billion years ago.
From Scientific American • Jun. 15, 2019
The crater is part of the South Pole–Aitken basin, the largest known impact structure in the Solar System and the oldest on the Moon.
From Nature • Nov. 29, 2018
Several other favored sites sit at the edge of Isidis Basin, an impact structure that created deep troughs with significant carbonate deposits, which could help explain how Mars lost its once-thick carbon dioxide atmosphere.
From Science Magazine • Aug. 6, 2015
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
