(Phys.org)—An international team of researchers has found evidence that suggests that Amazonia did not revert to savannah during the last ice age and instead remained forested. In their paper published in the journal Nature, ...
The moon was formed by a violent, head-on collision between the early Earth and a "planetary embryo" called Theia approximately 100 million years after the Earth formed, UCLA geochemists and colleagues report.
Space Exploration
Jan 28, 2016
61
3667
The ocean is often depicted as teeming with life, from crustaceans and fish to whales and other mammals, but in fact large swaths of it are virtual deserts, populated only by bacteria and a handful of particularly hardy species.
Earth Sciences
Oct 2, 2014
0
0
A new series of measurements of oxygen isotopes provides increasing evidence that the Moon formed from the collision of the Earth with another large, planet-sized astronomical body, around 4.5 billion years ago. This work ...
Space Exploration
Jun 5, 2014
11
1
(Phys.org) —Sorting through oxygen isotopes in muddy sediment at the bottom of 10 Pacific Northwest lakes has led a research team including University of Pittsburgh scientists to conclude that droughts in that region match ...
Earth Sciences
Apr 18, 2014
0
0
A common songbird may have acquired genes from fellow migrating birds in order to travel greater distances, according to a University of British Columbia study published this week in the journal Evolution.
Evolution
Sep 20, 2013
7
0
Far more of Earth's water was locked up as ice at the height of the last ice age than previously thought, and current climate change models may need to be adjusted to account for it, according to a new study.
Earth Sciences
Jun 28, 2013
0
0
As ice sheets melted during the deglaciation of the last ice age and global oceans warmed, oceanic oxygen levels decreased and "denitrification" accelerated by 30 to 120 percent, a new international study shows, creating ...
Earth Sciences
Jun 3, 2013
0
0
(Phys.org) —A pair of Australian researchers studying rock samples has found evidence to suggest that the Earth's tectonic plate activity peaked approximately 1.1 billion years ago. In their paper published in the journal ...
A research team of biogeochemists at the University of California, Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere, arguably the most important biological ...
Earth Sciences
Apr 24, 2013
0
0
