A previously unknown connection between geological atmospheric carbon dioxide cycles and the fluctuating capacity of the ocean crust to store carbon dioxide has been uncovered by two geoscientists from the University of Sydney.
Earth Sciences
Feb 14, 2018
1
210
Geophysicists have obtained detailed three-dimensional images of a dangerous megathrust fault west of Costa Rica where two plates of the Earth's crust collide. The images reveal features of the fault surface, including long ...
Earth Sciences
Feb 12, 2018
0
277
The Cascadia Subduction Zone off the coast of the Pacific Northwest has all the ingredients for making powerful earthquakes—and according to the geological record, the region is due for its next "big one."
Earth Sciences
Nov 20, 2017
0
412
The first observation of a super-hydrated phase of the clay mineral kaolinite could improve our understanding of processes that lead to volcanism and affect earthquakes. In high-pressure and high-temperature X-ray measurements ...
Earth Sciences
Nov 20, 2017
0
133
Fifty million years ago, Bremerton, Washington, may have looked a lot like Iceland: hot new land atop an oceanic spreading center. That land was part of the Siletzia terrane, a thick wedge of basaltic crust that extends from ...
Earth Sciences
Oct 24, 2017
0
53
A comprehensive study of faults along the north side of the Olympic Mountains of Washington State emphasizes the substantial seismic hazard to the northern Puget Lowland region. The study examined the Lake Creek-Boundary ...
Earth Sciences
Sep 28, 2017
1
20
Slow slip events, a type of slow motion earthquake that occurs over days to weeks, are thought to be capable of triggering larger, potentially damaging earthquakes. In a new study led by The University of Texas at Austin, ...
Earth Sciences
Sep 11, 2017
0
28
Scientists probing under the seafloor off Alaska have mapped a geologic structure that they say signals potential for a major tsunami in an area that normally would be considered benign. They say the feature closely resembles ...
Earth Sciences
Aug 1, 2017
1
672
Understanding "slow-slip" earthquakes on the seafloor—seismic events that occur over a period of days or weeks—is giving researchers new insights into undersea earthquakes and the subsequent creation of tsunamis. Through ...
Earth Sciences
Jun 15, 2017
0
97
An international team of scientists has found evidence suggesting the dehydration of minerals deep below the ocean floor influenced the severity of the Sumatra earthquake, which took place on December 26, 2004.
Earth Sciences
May 25, 2017
0
141
