Earth Sciences news
Yellowstone's plumbing exposed
Space & Earth / Earth Sciences
Dec 14, 2009 |
4.8 / 5 (36) |
17
(PhysOrg.com) -- The most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth ...
Earth's atmosphere came from outer space, find scientists
Space & Earth / Earth Sciences
Dec 10, 2009 |
4.2 / 5 (29) |
12
(PhysOrg.com) -- The gases which formed the Earth's atmosphere - and probably its oceans - did not come from inside the Earth but from outer space, according to a study by University of Manchester and University ...
Absence of evidence for a meteorite impact event 13,000 years ago
Space & Earth / Earth Sciences
Dec 08, 2009 |
4.1 / 5 (17) |
13
An international team of scientists led by researchers at the University of Hawaii at Manoa have found no evidence supporting an extraterrestrial impact event at the onset of the Younger Dryas ~13000 years ...
Hawaiian hot spot has deep roots
Space & Earth / Earth Sciences
Dec 03, 2009 |
4.9 / 5 (11) |
1
(PhysOrg.com) -- Hawaii may be paradise for vacationers, but for geologists it has long been a puzzle. Plate tectonic theory readily explains the existence of volcanoes at boundaries where plates split apart ...
'Super-river' formed the English Channel
Space & Earth / Earth Sciences
Dec 02, 2009 |
4.4 / 5 (18) |
0
(PhysOrg.com) -- A team of Anglo-French scientists studying sedimentary deposits in the Bay of Biscay have concluded that Britain and France were separated by a "super-river" during three periods of glaciations, ...
Supervolcano eruption -- in Sumatra -- deforested India 73,000 years ago
Space & Earth / Earth Sciences
Nov 23, 2009 |
4.5 / 5 (17) |
3
A new study provides "incontrovertible evidence" that the volcanic super-eruption of Toba on the island of Sumatra about 73,000 years ago deforested much of central India, some 3,000 miles from the epicenter, ...
After mastodons and mammoths, a transformed landscape
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.6 / 5 (12) |
1
(PhysOrg.com) -- Roughly 15,000 years ago, at the end of the last ice age, North America's vast assemblage of large animals -- including such iconic creatures as mammoths, mastodons, camels, horses, ground ...
Mysteriously warm times in Antarctica
Space & Earth / Earth Sciences
Nov 18, 2009 |
4.2 / 5 (26) |
31
(PhysOrg.com) -- A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages (interglacials) may have been higher than previously thought. The latest analysis ...
Oceanographers image the discovery of the deepest explosive eruption on the sea floor (w/ Video)
Space & Earth / Earth Sciences
13 hours ago |
4.9 / 5 (7) |
0
Oceanographers using the remotely operated vehicle (ROV) Jason discovered and recorded the first video and still images of a deep-sea volcano actively erupting molten lava on the seafloor.
Computer simulation strengthens link between climate change and release of subsea methane
Space & Earth / Earth Sciences
13 hours ago |
4.4 / 5 (14) |
14
(PhysOrg.com) -- A first-of-its-kind computer simulation that mirrors real-world observations of methane bubbling up from a seabed in the Arctic Ocean provides further evidence that warming oceans may unleash ...
Pre-eruption earthquakes offer clues to volcano forecasters
Space & Earth / Earth Sciences
Dec 16, 2009 |
4.5 / 5 (2) |
1
Like an angry dog, a volcano growls before it bites, shaking the ground and getting "noisy" before erupting. This activity gives scientists an opportunity to study the tumult beneath a volcano and may help ...
Fault weaknesses, the center cannot hold for some geologic faults
Space & Earth / Earth Sciences
Dec 16, 2009 |
5 / 5 (3) |
0
Some geologic faults that appear strong and stable, slip and slide like weak faults. Now an international team of researchers has laboratory evidence showing why some faults that "should not" slip are weaker ...
Study: Earth's polar ice sheets vulnerable to even moderate global warming
Space & Earth / Earth Sciences
Dec 16, 2009 |
2.8 / 5 (30) |
19
A new analysis of the geological record of the Earth's sea level, carried out by scientists at Princeton and Harvard universities and published in the Dec. 16 issue of Nature, employs a novel statistical approa ...
Pollution alters isolated thunderstorms
Space & Earth / Earth Sciences
Dec 15, 2009 |
3 / 5 (4) |
10
New climate research reveals how wind shear -- the same atmospheric conditions that cause bumpy airplane rides -- affects how pollution contributes to isolated thunderstorm clouds. Under strong wind shear ...
Tremors between slip events: More evidence of great quake danger to Seattle
Space & Earth / Earth Sciences
Dec 15, 2009 |
4.4 / 5 (7) |
0
(PhysOrg.com) -- For most of a decade, scientists have documented unfelt and slow-moving seismic events, called episodic tremor and slip, showing up in regular cycles under the Olympic Peninsula of Washington state and Vancouver ...
