Tag: geology press releases
Unexpected information about Earth’s climate history from Yellow River sediment
By meticulously examining sediments in China's Yellow River, a Swedish-Chinese research group are showing that the history of tectonic and climate evolution on Earth may need to be rewritten. Their findings are published today in the highly reputed journal Nature Communications.
Asteroid impact, volcanism were one-two punch for dinosaurs
Berkeley geologists have uncovered compelling evidence that an asteroid impact on Earth 66 million years ago accelerated the eruptions of volcanoes in India for hundreds of thousands of years, and that together these planet-wide catastrophes caused the extinction of many land and marine animals, including the dinosaurs.
New study indicates Earth’s inner core was formed 1-1.5 billion years ago
There have been many estimates for when the earth's inner core was formed, but scientists from the University of Liverpool have used new data which indicates that the Earth's inner core was formed 1 - 1.5 billion years ago as it "froze" from the surrounding molten iron outer core.
Ancient rocks record first evidence for photosynthesis that made oxygen
A new study shows that iron-bearing rocks that formed at the ocean floor 3.2 billion years ago carry unmistakable evidence of oxygen.
Volcanic eruptions affect flow of world’s major rivers, study finds
Major volcanic eruptions can have a significant effect on the flow of the biggest rivers around the world, research shows.
Evidence confirms volcanic island collapses may trigger mega-tsunamis
A pre-historical sudden collapse of one of the tallest and most active oceanic volcanoes on Earth — Fogo, in the Cape Verde Islands – triggered a mega-tsunami with waves impacting 220 metres (721 feet) above present sea level resulting in catastrophic consequences, according to a new University of Bristol study.