Something old, something new... Grand Canyon surprises
The Grand Canyon as we know it was formed between five and six million years ago, which is youthful in geological terms, but parts of it could be as old as 70 million years, scientists said Sunday.
Enigmatic methane: Study solves a biogeochemical riddle from the ocean floor
Marine researchers from Bremen, along with a U.S. colleague, discovered the potential reasons for an unsolved mystery from beneath the seafloor - the study appeared online yesterday in Nature Geoscience. Their ...
Source of Galapagos eruptions is not where models place it
Images gathered by University of Oregon scientists using seismic waves penetrating to a depth of 300 kilometers (almost 200 miles) report the discovery of an anomaly that likely is the volcanic mantle plume ...
Atlantic current decline could be good news for the British summer
(Phys.org) —Major currents in the North Atlantic Ocean seem to be slowing down, according to new research from the University of Reading.
The water cycle amplifies abrupt climate change
During the abrupt cooling at the onset of the so-called Younger Dryas period 12680 years ago changes in the water cycle were the main drivers of widespread environmental change in western Europe. Thus, the ...
Geologist helps identify dangerous earthquake fault
(Phys.org) —The discovery of a previously unknown active fault in Nepal means that the Himalayan country's most populated region is at greater risk for life-threatening earthquakes and catastrophic flooding than previously ...
Study examines iceberg shifts in North Atlantic
(Phys.org) —Some Heinrich events – periodic massive iceberg surges into the North Atlantic that were previously thought to have weakened the global ocean conveyor belt circulation and sent Earth's climate ...
How Earth's devastating super-volcanoes might erupt
Devastating supervolcanoes can erupt simply due to changes that happen in their giant magma chambers as they slowly cool, according to a new study. This finding marks the first time researchers have been ...
High levels of molecular chlorine found in Arctic atmosphere
(Phys.org) —Scientists studying the atmosphere above Barrow, Alaska, have discovered unprecedented levels of molecular chlorine in the air, a new study reports.
Researchers bulldoze desert to learn how sand dunes form
Land bulge clue to aviation threat from volcanoes
Bulging in land that occurs before a volcano erupts points to how much ash will be spewed into the sky, providing a useful early warning for aviation, geologists in Iceland said on Sunday.
Supervolcano triggers recreated in X-ray laboratory
Scientists have reproduced the conditions inside the magma chamber of a supervolcano to understand what it takes to trigger its explosion. These rare events represent the biggest natural catastrophes on Earth ...
Ground-breaking work sheds new light on volcanic activity
Factors determining the frequency and magnitude of volcanic phenomena have been uncovered by an international team of researchers.
Atlas Mountains in Morocco are buoyed up by superhot rock, study finds
The Atlas Mountains defy the standard model for mountain structure in which high topography must have deep roots for support, according to a new study from Earth scientists at USC.