Hotspot volcanoes

Australia was once home to hundreds of ancient volcanoes. We can finally find out why

Geologically, Australia is a relatively quiet place to live. Earthquakes are rare and typically sweet, and as with volcanoes, there has not been as much as a burp of magma on the continent in thousands of years. It hasn’t always been that way. In fact, the earth is littered with the remains of mysterious eruptions […]

Hotspot volcanoes

Eastern Australia has hundreds of enigmatic volcanoes. New research shows how they were formed

The landscape of eastern Australia is dotted with hundreds of extinct volcanoes. They gave birth to an environment to which the Aborigines have been connected for tens of thousands of years, and to the rich soils upon which modern Australia has developed in recent years. a few hundred years. Read more: When the Bullin was […]

Hotspot volcanoes

Why has the east coast had hundreds of volcanoes since the dinosaur era? – ScienceDaily

Australia’s east coast is littered with the remains of hundreds of volcanoes – the most recent only a few thousand years old – and scientists have been unable to explain why so many eruptions occurred in the 1980s. last million years. Today, geoscientists at the University of Sydney have discovered why part of a stable […]

Hotspot volcanoes

Biological hot spots are windows in the basement

Hydrothermal ventilation of magmatic gas at the Cone site in the Brothers volcano. Credit: Image courtesy of Anna-Louise Reysenbach, NSF, ROV Jason and 2018 © Woods Hole Oceanographic Institution. Hydrothermally active submarine volcanoes make up a large portion of Earth’s volcanism and are mineral-rich biological hotspots, but very little is known about the dynamics of […]

Hotspot volcanoes

Underwater volcanoes: windows on the subsurfa

image: Image 2. Deep sea hydrothermal vent chimneys on the northwest caldera wall of the Brothers volcano. Image courtesy of Anna-Louise Reysenbach, NSF, ROV Jason and 2018 © Woods Hole Oceanographic Institution. see Following Credit: Anna-Louise Reysenbach Hydrothermally active submarine volcanoes make up a large portion of Earth’s volcanism and are mineral-rich biological hotspots, but […]

Hotspot volcanoes

Using sound to study underwater volcanoes

NOAA“width =” “height =””/> The Hawaiian-Emperor Seamount Range (the roughly L-shaped configuration near the center of the image) is approximately 3,900 miles long. For comparison, it is the west coast of North America on the right. Credit: NOAA Imagine placing a stone on a piece of hanging cardboard. If the cardboard is sturdy and plentiful, […]

Hotspot volcanoes

Volcanoes where they shouldn’t be? Maybe it’s a coat sponge

Google earth The location and characteristics of most of the world’s volcanoes can be explained with just two recipes for magma production. The melting point of rock is dependent on pressure, so hot mantle rock flowing to the surface can melt when pressure drops. Adding water also lowers the melting point, so water-laden seabed plates […]

Hotspot volcanoes

Gacad: volcanoes explained – SUNSTAR

THE VOLCANOES are the geological architects of the Earth. They created over 80 percent of our planet’s surface, laying the foundation that allowed life to thrive. Their explosive force makes mountains as well as craters. Rivers of lava spread across dark landscapes. But as time passes, the elements break down these volcanic rocks, releasing nutrients […]

Hotspot volcanoes

Study points to cause for several breathing oxygen mysteries – sciencedaily

Earth’s breathable atmosphere is essential for life, and a new study suggests the first oxygen burst was added by a series of volcanic eruptions caused by tectonics. The study by geoscientists at Rice University offers a new theory to help explain the appearance of significant concentrations of oxygen in the Earth’s atmosphere about 2.5 billion […]

Hotspot volcanoes

How are volcanoes formed? | Facts about volcanoes

The Earth has four main layers. The innermost layer of the Earth is a solid core made of iron. Its outer core is a molten mixture of iron and nickel. These layers are surrounded by the Earth’s mantle, the pasty layer of molten rock that powers Earth’s volcanoes. And finally, the lithosphere consists of the […]