OSBGE Staff

Geoscientists have long known that some parts of the continents formed in the Earth’s deep past, but the speed in which land rose above global seas — and the exact shapes that land masses formed — have so far eluded experts. Title: Geoscientists use zircon to trace origin of Earth’s continentsSourced From: www.sciencedaily.com/releases/2020/12/201201153424.htmPublished Date: Tue, … Geoscientists use zircon to trace origin of Earth’s continents

As temperatures rise due to climate change, the melting of polar ice sheets is accelerating. An international team of scientists has now examined the dynamics of the East Antarctic Ice Sheet more closely using deep-sea sediments dating back approximately 2.5 million years. Their results indicate that, in a constantly warming climate, the ice masses of … How stable is the Antarctic ice sheet?

The African continent is slowly separating into several large and small tectonic blocks along the diverging East African Rift System, continuing to Madagascar – the long island just off the coast of Southeast Africa – that itself will also break apart into smaller islands. Title: East African Rift System is slowly breaking away, with Madagascar … East African Rift System is slowly breaking away, with Madagascar splitting into pieces

Supercomputer simulations of planetary-scale interactions show how ocean storms and the structure of Earth’s upper layers together generate much of the world’s seismic waves. Decoding the faint but ubiquitous vibrations known as Love waves could yield insights about Earth’s storm history, changing climate and interior. Title: Love waves from the ocean floorSourced From: www.sciencedaily.com/releases/2020/11/201113103730.htmPublished Date: … Love waves from the ocean floor

Over the past 40,000 years, ice sheets thousands of kilometers apart have influenced one another through sea level changes, according to new research. New modelling of ice sheet changes during the most recent glacial cycle demonstrates, for the first time, that during this period, changes in the Antarctic ice sheet were driven by the melting … Ice sheets on the move: How north and south poles connect

Twice as much freshwater is stored offshore of Hawai’i Island than previously thought, revealed a new study with important implications for volcanic islands around the world. An extensive reservoir of freshwater within the submarine southern flank of the Hualalai aquifer was mapped by researchers with Hawai’i EPSCoR ‘Ike Wai project, showing a way in which … Offshore submarine freshwater discovery raises hopes for islands worldwide

The 2018 eruption of Ki?lauea Volcano was one of the largest volcanic events in Hawai’i in 200 years. This eruption was triggered by a relatively small and rapid change at the volcano after a decade-long build-up of pressure in the upper parts of the volcano, according to a recent study. Title: Cascading events led to … Cascading events led to 2018 Ki?lauea volcanic eruption, providing clues for forecasting

Scientists have resolved a longstanding controversy surrounding the origins of complex life on Earth. The studies found molecular fossils extracted from 635-million-year-old rocks aren’t the earliest evidence of animals, but instead common algae. Title: True origin of oldest evidence of animalsSourced From: www.sciencedaily.com/releases/2020/11/201123112510.htmPublished Date: Mon, 23 Nov 2020 11:25:10 EST Your browser does not support … True origin of oldest evidence of animals

A team of researchers has discovered more about the grain-scale fluid connectivity beneath the earth’s surface, shedding new light on fluid circulation and seismic velocity anomalies in subduction zones. Title: The connectivity of multicomponent fluids in subduction zonesSourced From: www.sciencedaily.com/releases/2020/11/201112100855.htmPublished Date: Thu, 12 Nov 2020 10:08:55 EST <a href="https://www.musiclessons.com/youtube/watch?v=JhtyTTsnHaA">https://www.musiclessons.com/youtube/watch?v=JhtyTTsnHaA</a><br /> <!– start sw-rss-feed code –> … The connectivity of multicomponent fluids in subduction zones

Massive explosions of energy happening thousands of light-years from Earth may have left traces in our planet’s biology and geology, according to new research. Title: Tree rings may hold clues to impacts of distant supernovas on EarthSourced From: www.sciencedaily.com/releases/2020/11/201111144400.htmPublished Date: Wed, 11 Nov 2020 14:44:00 EST <a href="https://www.ultratop.be/showyoutube.asp?id=JhtyTTsnHaA">https://www.ultratop.be/showyoutube.asp?id=JhtyTTsnHaA</a><br /> <!– start sw-rss-feed code –> <script … Tree rings may hold clues to impacts of distant supernovas on Earth