Banded iron formations: Oceans, algae and iron oxide
Iron ore is a big deal in Australia.
Earth Sciences
Mar 18, 2024
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News tagged with sedimentary rock formation
Ancient rocks improve understanding of tectonic activity between earthquakes
Rocks once buried deep in ancient subduction zones—where tectonic plates collide—could help scientists make better predictions of how these zones behave during the years between major earthquakes, according to a research ...
Earth Sciences
Feb 2, 2024
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Iron-rich rocks unlock new insights into Earth's planetary history
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
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330
In-situ observations of marine sedimentary rocks suggest ancient northern ocean on Mars
An international research team led by Professor Long Xiao from the School of Earth Sciences of China University of Geosciences (Wuhan) has discovered the presence of marine sedimentary rocks on the surface of Mars for the ...
Planetary Sciences
May 22, 2023
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474
Scientists make 'disturbing' find on remote island: plastic rocks
There are few places on Earth as isolated as Trindade island, a volcanic outcrop a three- to four-day boat trip off the coast of Brazil.
Earth Sciences
Mar 21, 2023
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Our moon has been slowly drifting away from Earth over the past 2.5 billion years
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
Exposed sediments reveal decades of Lake Powell history
Usually when a geologist walks up to a sedimentary rock outcrop and starts scanning the layers of sand, mud and silt now turned to rock, they're looking through millions of years of deep time to deduce what happened in that ...
Earth Sciences
Apr 5, 2022
1
452
Billion-year-old lake deposit yields clues to Earth's ancient biosphere
A sample of ancient oxygen, teased out of a 1.4 billion-year-old evaporative lake deposit in Ontario, provides fresh evidence of what the Earth's atmosphere and biosphere were like during the interval leading up to the emergence ...
Earth Sciences
Jul 18, 2018
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90
140-million-year-old dinosaur tooth found in Malaysia
A dinosaur tooth found in Malaysia is at least 140 million years old and belongs to a new species within the "bird-hipped" Ornithischian order, researchers said Thursday.
Archaeology
Nov 13, 2014
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0
Life's history in iron
A new study examines how Earth's oldest iron formations could have been formed before oxygenic photosynthesis played a role in oxidizing iron.
Earth Sciences
Nov 7, 2014
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