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Oldest carnivorous dinosaur fossil unearthed in Brazil
Phys Org   13 November 2019   Brazil  
<p>A team of researchers from Universidade Federal de Santa Maria and Universidade de S&atilde;o Paulo, both in Brazil, has found and identified the oldest carnivorous dinosaur fossil to date. In their paper published in the journal PeerJ, the group describes ...
How a huge landslide shaped Zion National Park
Phys Org   26 May 2016   USA   Utah  
This view of Zion Canyon in Utah's Zion National Park shows the flat valley floor created when part of the peak named the Sentinel collapsed in a gigantic landslide.
<p>A Utah mountainside collapsed 4,800 years ago in a gargantuan landslide known as a "rock avalanche," creating the flat floor of what is now Zion National Park by damming the Virgin River to create a lake that existed for 700 years.</p> <p> </p>
What we've learned from the deadly Oso, Washington landslide two years on
Phys Org   22 March 2016   USA   Washington  
Before and after the Oso landslide in 2014. Credit: Joseph Wartman, CC BY-ND
<p>On March 22, 2014, a hillside above Oso, Washington collapsed, unleashing a torrent of mud and debris that buried the community of Steelhead Haven. Forty-three people lost their lives, making it one of the single deadliest landslide disasters in U.S. history.</p> <p> ...
Filed under: Natural Hazards
'Carbon sink' detected underneath world's deserts
Phys Org   28 July 2015   China   China Desert  
Scientists found that as water moved through irrigated fields, the water gathered dissolved carbon and moved it deep underground. Credit: Yan Li
<p>The world's deserts may be storing some of the climate-changing carbon dioxide emitted by human activities, a new study suggests. Massive aquifers underneath deserts could hold more carbon than all the plants on land, according to the new research.</p> <p> ...
Rainfall drives rapid melt and flow of the Greenland ice sheet
Phys Org   14 July 2015   Greenland   Greenland  
Crevassed glacier terminus in West Greenland / Sam Doyle
<p>According to a new study published in Nature Geoscience, the Greenland ice sheet has been shown to accelerate in response to surface rainfall and melt associated with late-summer and autumnal cyclonic weather events.<br>Samuel Doyle and an international ...
Filed under: Natural Hazards
Researchers use giant foam blocks to keep approach slabs of bridges from settling
Phys Org   11 June 2015   USA   Texas  
Geofoam blocks being installed underneath a North Texas highway will ensure stability for a longer period of time than traditional construction. Credit: UT Arlington
<p>A research team at The University of Texas at Arlington is using giant lightweight geofoam blocks to bolster the earth beneath roads and bridges and slow down the settling of roadways and bridges.</p> <p>Anand Puppala, UT Arlington associate dean for research ...