Curtin University-led research has found new evidence to suggest that the Earth's first continents were not formed by subduction in a modern-like plate tectonics environment as previously thought, and instead may have been ...
Earth Sciences
Jul 8, 2020
0
396
What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes around the ...
General Physics
Jul 17, 2011
50
0
Continental drift and plate tectonics—the notion that large chunks of Earth's crust slowly but inexorably shift positions—was proposed in 1912 but not accepted until the 1960s. These movements changed the face of the ...
Earth Sciences
May 18, 2017
1
26
The longevity of Earth's continents in the face of destructive tectonic activity is an essential geologic backdrop for the emergence of life on our planet. This stability depends on the underlying mantle attached to the landmasses. ...
Earth Sciences
Apr 25, 2019
1
541
New Curtin research has provided the strongest evidence yet that Earth's continents were formed by giant meteorite impacts that were particularly prevalent during the first billion years or so of our planet's four-and-a-half-billion ...
Earth Sciences
Aug 10, 2022
1
3153
A new study has shown for the first time how Australia's rich geological history is reflected deep below the Earth's surface.
Earth Sciences
Oct 8, 2021
0
420
Fifty years ago, there was a seismic shift away from the longstanding belief that Earth's continents were permanently stationary.
Earth Sciences
Jul 5, 2016
1
46
An iceberg the size of Luxembourg knocked loose from the Antarctic continent earlier this month could disrupt the ocean currents driving weather patterns around the globe, researchers said Thursday.
Earth Sciences
Feb 25, 2010
8
0
The course of human history has been marked by complex patterns of migration, isolation, and admixture, the latter a term that refers to gene flow between individuals from different populations. Admixture results in a blending ...
Evolution
May 19, 2023
0
868
The first four of 12 satellites in a new constellation to provide affordable, high-speed Internet to people in nearly 180 "under-connected" countries, will be shot into space on Tuesday, the project's developers said.
Telecom
Jun 24, 2013
6
0
