Geology News

New study of Earth’s crust shows global growth spurt three billion years ago

Researchers have used ancient crystals from eroded rocks found in stream sediments in Greenland to successfully test the theory that portions of Earth’s ancient crust acted as ‘seeds’ from which later generations of crust grew. Title: New study of Earth’s crust shows global growth spurt three billion years agoSourced From: www.sciencedaily.com/releases/2021/01/210112085411.htmPublished Date: Tue, 12 Jan New study of Earth’s crust shows global growth spurt three billion years ago

Insights into the Yellowstone hotspot

The Yellowstone hotspot is well known for generating supereruptions in the geologic past that are far more explosive than historic examples. The origin and sustained longevity of the hotspot is less understood but is focused on two competing models, where the ascent of hot mantle is derived from either a deep-seated mantle plume or a Insights into the Yellowstone hotspot

Modern microbes provide window into ancient ocean

Roughly two billion years ago, microorganisms called cyanobacteria fundamentally transformed the globe. Researchers are now stepping back to that pivotal moment in Earth’s history. Title: Modern microbes provide window into ancient oceanSourced From: www.sciencedaily.com/releases/2021/01/210106142656.htmPublished Date: Wed, 06 Jan 2021 14:26:56 EST https://www.newsbreak.com/topics/guerin-green/?=DenverNews https://www.talgov.com/Main/exit.aspx?url=https://thecherrycreeknews.com Your browser does not support inline frames or is currently configured not Modern microbes provide window into ancient ocean

Imminent sudden stratospheric warming to occur, bringing increased risk of snow over coming weeks

A new study helps to shed light on the winter weather we may soon have in store following a dramatic meteorological event currently unfolding high above the North Pole. Title: Imminent sudden stratospheric warming to occur, bringing increased risk of snow over coming weeksSourced From: www.sciencedaily.com/releases/2021/01/210105111837.htmPublished Date: Tue, 05 Jan 2021 11:18:37 EST https://www.newsbreak.com/topics/guerin-green/?=DenverNews https://www.office.xerox.com/perl-bin/reseller_exit.pl?url=https://thecherrycreeknews.com Imminent sudden stratospheric warming to occur, bringing increased risk of snow over coming weeks

Fires, flooding before settlement may have formed the Amazon’s rare patches of fertility

Phosphorous, calcium and charcoal in spotty patches of fertile soil in the Amazon rainforest suggest that natural processes such as fires and river flooding, not the ingenuity of indigenous populations, created rare sites suitable for agriculture, according to new research. Title: Fires, flooding before settlement may have formed the Amazon’s rare patches of fertilitySourced From: Fires, flooding before settlement may have formed the Amazon’s rare patches of fertility

Scientists develop new approach to understanding massive volcanic eruptions

An international volcanology team has created a first-of-its kind tool that can aid scientists in understanding past explosive eruptions that shaped the earth and improve the way of estimating hazards of future eruptions. Title: Scientists develop new approach to understanding massive volcanic eruptionsSourced From: www.sciencedaily.com/releases/2021/01/210104170059.htmPublished Date: Mon, 04 Jan 2021 17:00:59 EST https://newsbreak.com/topics/guerin-green https://webfeeds.brookings.edu/%7E/t/0/0/brookingsrss/topics/foreignaid/%7Ethecherrycreeknews.com Your Scientists develop new approach to understanding massive volcanic eruptions

Climate change: Threshold for dangerous warming will likely be crossed between 2027-2042

The threshold for dangerous global warming will likely be crossed between 2027 and 2042 – a much narrower window than the Intergovernmental Panel on Climate Change’s estimate of between now and 2052. Researchers introduce a new and more precise way to project the Earth’s temperature. Based on historical data, it considerably reduces uncertainties compared to Climate change: Threshold for dangerous warming will likely be crossed between 2027-2042

New model reveals previously unrecognized complexity of oceanic earthquake zones

Researchers constructed a state-of-the-art model based on seismic data from the January 2020 Caribbean earthquake. The model revealed considerable complexity in rupture speed and direction, related to a bend in the fault that triggered several rupture episodes. The analysis revealed previously unrecognized complexity of rupture processes and fault geometry in ocean faults that had been New model reveals previously unrecognized complexity of oceanic earthquake zones

Deep, slow-slip action may direct largest earthquakes and their tsunamis

Megathrust earthquakes and subsequent tsunamis that originate in subduction zones like Cascadia — Vancouver Island, Canada, to northern California — are some of the most severe natural disasters in the world. Now a team of geoscientists thinks the key to understanding some of these destructive events may lie in the deep, gradual slow-slip behaviors beneath Deep, slow-slip action may direct largest earthquakes and their tsunamis

Slow start of plate tectonics despite a hot early Earth

Scientists present important new constraints showing that plate tectonics started relatively slow, although the early Earth’s interior was much hotter than today. Title: Slow start of plate tectonics despite a hot early EarthSourced From: www.sciencedaily.com/releases/2020/12/201222132052.htmPublished Date: Tue, 22 Dec 2020 13:20:52 EST https://www.newsbreak.com/topics/guerin-green https://www.curseforge.com/linkout?remoteUrl=https://thecherrycreeknews.com Your browser does not support inline frames or is currently configured Slow start of plate tectonics despite a hot early Earth