(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain materials. This ...
Condensed Matter
May 18, 2012
7
0
(PhysOrg.com) -- The strikingly banded rocks scattered across the upper Midwest and elsewhere throughout the world are actually ambassadors from the past, offering clues to the environment of the early Earth more than 2 billion ...
Earth Sciences
Oct 11, 2009
1
0
Understanding the atmosphere and surface environment of the early Earth, especially before the origin of life, is a key to understanding the habitability of the Earth.
Earth Sciences
Jul 6, 2023
0
5
Visually striking layers of burnt orange, yellow, silver, brown and blue-tinged black are characteristic of banded iron formations, sedimentary rocks that may have prompted some of the largest volcanic eruptions in Earth's ...
Earth Sciences
May 25, 2023
1
330
Looking up at the moon in the night sky, you would never imagine that it is slowly moving away from Earth. But we know otherwise. In 1969, NASA's Apollo missions installed reflective panels on the moon. These have shown that ...
Astronomy
Oct 10, 2022
2
1748
In a study published in the journal Nature Communications, Andrea Mundl-Petermeier and Sebastian Viehmann of the Department of Lithospheric Research at the University of Vienna have demonstrated that a new geochemical archive—182Tungsten ...
Earth Sciences
May 17, 2022
0
34
The precursor of our planet, the proto-Earth, formed within a time span of approximately five million years, shows a new study from the Centre for Star and Planet Formation (StarPlan) at the Globe Institute at the University ...
Earth Sciences
Feb 20, 2020
4
4312
A new study by University of Alberta scientists shows that banded iron formations originated from oxidized iron, confirming the relevance and accuracy of existing models—a finding of great importance to the geological community.
Earth Sciences
Jun 6, 2019
1
161
Small planetary systems with multiple planets are not fans of heavy metal—think iron, not Iron Maiden—according to a new Yale University study.
Astronomy
Oct 24, 2018
5
280
The discovery of Earth's youngest-ever banded iron formation is changing how scientists understand the evolution of complex life, according to a study by University of Alberta geologists.
Earth Sciences
Jul 11, 2018
0
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