Geology News

Records from Lake Magadi, Kenya, suggest environmental variability driven by changes in Earth’s orbit

Rift Valley lakes within eastern Africa range from freshwater to highly alkaline systems and are homes to diverse ecosystems. These Rift Valley lakes are also sedimentary repositories, yielding a high-resolution environmental record that can be targeted to better understand the environmental and climatic context of human evolution over the past few million years in eastern Records from Lake Magadi, Kenya, suggest environmental variability driven by changes in Earth’s orbit

What lies beneath: Volcanic secrets revealed

Lava samples have revealed a new truth about the geological make-up of the Earth’s crust and could have implications for volcanic eruption early warning systems, a new study has found. Title: What lies beneath: Volcanic secrets revealedSourced From: www.sciencedaily.com/releases/2021/09/210914184741.htmPublished Date: Tue, 14 Sep 2021 18:47:41 EDT News…. browse around here check these guys out Your What lies beneath: Volcanic secrets revealed

A recent reversal in the response of western Greenland’s ice caps to climate change

Greenland may be best known for its enormous continental scale ice sheet that soars up to 3,000 meters above sea level, whose rapid melting is a leading contributor to global sea level rise. But surrounding this massive ice sheet, which covers 79% of the world’s largest island, is Greenland’s rugged coastline dotted with ice capped A recent reversal in the response of western Greenland’s ice caps to climate change

Threat of catastrophic supervolcano eruptions is ever-present

Scientists have studied an ancient supervolcano in Indonesia and found such volcanoes remain active and hazardous for thousands of years after a super-eruption, prompting the need for a rethink of how these potentially catastrophic events are predicted. Title: Threat of catastrophic supervolcano eruptions is ever-presentSourced From: www.sciencedaily.com/releases/2021/09/210903085900.htmPublished Date: Fri, 03 Sep 2021 08:59:00 EDT News…. Threat of catastrophic supervolcano eruptions is ever-present

Researchers identify new source for earthquakes and tsunamis in the Greater Tokyo Region

Researchers have discovered geologic evidence that unusually large earthquakes and tsunamis from the Tokyo region — located near tectonic plate boundaries that are recognized as a seismic hazard source — may be traceable to a previously unconsidered plate boundary. Title: Researchers identify new source for earthquakes and tsunamis in the Greater Tokyo RegionSourced From: www.sciencedaily.com/releases/2021/09/210902125108.htmPublished Researchers identify new source for earthquakes and tsunamis in the Greater Tokyo Region

Rare earth elements and old mines spell trouble for Western water supplies

Rare earth elements are finding their way into Colorado water supplies, driven by changes in climate, finds new research. Title: Rare earth elements and old mines spell trouble for Western water suppliesSourced From: www.sciencedaily.com/releases/2021/08/210831155309.htmPublished Date: Tue, 31 Aug 2021 15:53:09 EDT News…. browse around here check it out Your browser does not support inline frames Rare earth elements and old mines spell trouble for Western water supplies

‘Tipping points’ in Earth’s system triggered rapid climate change 55 million years ago

Scientists have uncovered a fascinating new insight into what caused one of the most rapid and dramatic instances of climate change in the history of the Earth. Title: ‘Tipping points’ in Earth’s system triggered rapid climate change 55 million years agoSourced From: www.sciencedaily.com/releases/2021/08/210831131419.htmPublished Date: Tue, 31 Aug 2021 13:14:19 EDT News…. browse around here check ‘Tipping points’ in Earth’s system triggered rapid climate change 55 million years ago

Understanding Antarctic ice historic changes could reveal future changes

Researchers suggest that the Antarctic Ice Sheet partly reached its maximum thickness before the Last Glacier Maximum. Title: Understanding Antarctic ice historic changes could reveal future changesSourced From: www.sciencedaily.com/releases/2021/08/210824104130.htmPublished Date: Tue, 24 Aug 2021 10:41:30 EDT News…. browse around here check it out Your browser does not support inline frames or is currently configured not Understanding Antarctic ice historic changes could reveal future changes

Bacterial bloom as the Earth thawed: Photosynthetic organisms during the Snowball Earth

Around 650 million years ago, the Earth entered into the Marinoan glaciation that saw the entire planet freeze. The ‘Snowball Earth’ impeded the evolution of life. But as it warmed, biotic life began to flourish. A research team has now analyzed rock samples from China to tell us more about this transition. Title: Bacterial bloom Bacterial bloom as the Earth thawed: Photosynthetic organisms during the Snowball Earth

Volcanic eruptions may have spurred first ‘whiffs’ of oxygen in Earth’s atmosphere

A new analysis of 2.5-billion-year-old rocks from Australia finds that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first puffs of oxygen into the atmosphere. This would change existing stories of Earth’s early atmosphere, which assumed that most changes in the early atmosphere were controlled by geologic or chemical processes. Title: Volcanic eruptions may have spurred first ‘whiffs’ of oxygen in Earth’s atmosphere