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Geotechnical Egineering News tagged with [geology]

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One of Geology’s Great Mysteries May Actually Be Many Smaller Mysteries
Atlas Obscura   28 April 2020   World  
The discrepancy pops up in the Grand Canyon, where ancient rock abuts, well, less ancient rock. Tenji / CC BY-SA 3.0
<p>Geology forms the context for many other fields, including archaeology, paleontology, climatology, and more, but that doesn&rsquo;t stop this bedrock science from throwing a curveball here and there. In some outcrops around the world there&rsquo;s a gap, ...
Scientists compile the first comprehensive geological map of the Moon
New Atlas   22 April 2020  
<p>Drawing on data from satellites and Apollo-era missions, scientists at the US Geological Survey (USGS), NASA and the Lunar Planetary Institute have pieced together what they say is the first comprehensive geological map of the Moon.</p> <p>Our 4.5-billion-year-old ...
Geologists Confirm a Staggering 2.2 Billion-Year-Old Impact Crater in Australia
Science Alert   22 January 2020   Australia  
Location of the crater. (The Conversation)
<p>Throughout its life, our planet has been pummelled by countless asteroids and comets - even more so than the crater-ridden Moon. Today, thanks to Earth's continually changing surface, there are remarkably few scars left to tell the tale.<br />Australia's ...
AIPT Science presents: The most devastating and uplifting geology stories of the decade
Adventuresinpoortaste   01 January 2020   World  
<p>The ground beneath our feet is constantly changing, and despite those changes taking place over millions of years, we’re able to experience geologic change in much shorter time spans. The last decade has been filled with geologic news, from deadly earthquakes, ...
The Year's Top Images of Earth From Space
Discover Magazine   25 December 2019   World  
Source: NASA Earth Observatory
<p>From explosive volcanic eruptions to rampaging wildfires and catastrophic floods, satellites, as well as astronauts aboard the International Space Station, captured all the action.</p>
‘Marsquakes’ reveal red planet’s hidden geology
Nature.com   13 December 2019  
Credit: NASA/JPL-Caltech
<p>San Francisco, California<br />The marsquakes are coming fast and furious. From its landing site near the Martian equator, NASA&rsquo;s InSight mission is detecting about two quakes per day &mdash; and the rate is going up.<br />&ldquo;We have a lot,&rdquo; ...
Mars: we may have solved the mystery of how its landslides form
The Conversation   02 December 2019  
Cerberus Fossae, with steep slopes having active landslides. NASA
<p>Some landslides on Mars seem to defy an important law of physics. &ldquo;Long, runout landslides&rdquo; are formed by huge volumes of rock and soil moving downslope, largely due to the force of gravity. But their power is hard to account for. With volumes ...
First geological map of Titan reveals varied, intriguing geology
ZME Science   18 November 2019   World  
Titan’s main geological features. Image credits: Lopes et al.
<p>Titan&rsquo;s atmosphere is dense and hazy, just like Earth&rsquo;s. The satellite also features intricate, stable bodies of liquid on its surface. But that&rsquo;s where the similarities with the Earth end. Titan&rsquo;s liquid isn&rsquo;t water, but hydrocarbon ...
Geologists Just Discovered a Source of Volcanoes Deeper Than Ever Before
Science Alert   20 May 2019   World  
(Wendy Kenigsberg/Clive Howard, Cornell University, modified from Mazza et al. 2019)
<p>Researchers have pinpointed a previously unknown source of volcanoes in the extreme depths of Earth - in the transition zone between the upper and lower mantle.<br />Until now, we thought we had a handle on the ways in which volcanoes form, welling up from ...
Eldridge Moores: He Looked at a Jumble of Rocks and 'Saw' the Sierra Being Born
KQED   17 December 2018   USA   California  
Eldridge Moores in one of the road cuts where rocks reveal the origins of the Sierra Nevada. (Craig Miller/KQED)
<p>The new year will mark a half-century since a "seismic" shift in geology unfolded.</p><p>Eldridge Moores was a key thinker in that shift. He died in late October, but the longtime UC Davis professor and field researcher left a permanent mark on geology ...