Hotspot volcanoes

USGS places four US volcanoes on high watch due to increased unrest

Despite the recent focus on Tonga’s main volcanic eruption, the USGS continues to monitor volcanoes in the United States. Currently four are at high Watch/Orange status due to activity altogether. (Photo: Getty Images) Volcanoes placed in high standby/orange status Great Sitkin Volcano, Pavlof, Semisopochnoi and Kilauea are the four volcanoes showing signs of unrest or […]

Volcanic mountains

Four Colorado volcanic sites that provide insight into the state’s historic past

After 50 years of little activity, the Cumbre Vieja volcano in La Palma, Spain sent a plume of toxic smoke into the sky in 2021. The eruption devastated the surrounding area with a barrage of ash and molten lava which did not end for 85 days. Natural disasters like this may seem quite remote from […]

Volcanic mountains

Volcanic fertilization of the oceans led to a severe mass extinction

Scientists from the University of Southampton have found that two intense periods of volcanism triggered a period of global cooling and falling oxygen levels in the oceans, which caused one of the most severe mass extinctions in history. the history of the Earth. The researchers, together with colleagues from the University of Oldenburg, the University […]

Volcanic mountains

Could we really have a volcanic eruption in Australia?

Stretching across South East Australia is a “large” and young volcanic region that has the potential for future eruptions, according to a prominent volcanologist. Volcanoes Scientist and Assistant Associate Professor at Monash University, Heather Handley, reported a study, which claims a small amount of magma, or melt, is trapped under the Newer Volcanic Province. This […]

Hotspot volcanoes

Scientific Breakthrough as Chinese Fossil Study Suggests Dinosaur Evolution Was Helped by Volcanoes | Science | News

Dinosaurs: a fossil shows a “different appearance”, according to an expert The ancient beast once roamed the planet freely with little to no opposition other than the other. They lived 230 to 66 million years ago through three periods called the Triassic, Jurassic and Cretaceous. Species as varied as the herbivorous Diplodocus, the terrifying Tyrannosaurus […]

Volcanic mountains

“Volcanic winter” probably contributed to ecological disaster 250 million years ago: study

Minerals rich in copper indicating extensive volcanic activity at the end of the Permian mass extinction in different regions of southern China (A: locality of Taoshujing; B: locality of Lubei; C: Guanbachong; D: locality of Taoshujing; E: Longmendong locality). The minerals are all copper sulfides, mainly malachite – the green spots of the minerals. Credit: […]

Hotspot volcanoes

Extensive survey of over 1,800 “young” monogenetic volcanoes in the Southwestern United States

A view of the crater of Dotsero volcano, a monogenetic volcano that erupted in Colorado about 4,000 years ago. Credit: Greg Valentine Study presents extensive investigation of monogenetic volcanoes less than 2.58 million years old in the southwestern United States. They were born. They live once, erupting for a period that can last for days, […]

Fold mountains

Ancient Alabama once had mountains taller than Everest

This is the first in a series titled “Ancient Alabama,” examining the natural forces that have made Alabama what it is for the past 500 million years, and how these forces still shape it. State today. Each year, thousands of people visit Alabama’s Cheaha State Park to see the state’s tallest peak, climb the steps […]

Hotspot volcanoes

Examining the Over 1,800 “Young” Volcanoes of the Southwestern United States

A view of the crater of Dotsero volcano, a monogenetic volcano that erupted in Colorado about 4,000 years ago. Credit: Greg Valentine They were born. They live once, erupting for a period that can last for days, years, or decades. Then they darken and die. This story describes the life of a monogenetic volcano, a […]

Volcanic mountains

Forest fires triggered by volcanic activity ravaged Antarctica 75 million years ago, study finds

Forest fires triggered by volcanic explosions ravaged Antarctica’s James Ross Island – once home to lush vegetation and dinosaurs – 75 million years ago, study finds Late Cretaceous fossil plants discovered in Antarctica Scientists analyzed the samples and found the charcoal characteristics This means that Antarctica experienced forest fires 75 million years ago. They were […]

Volcanic mountains

Black holes give shape to bubbles, rings and filaments of “intergalactic smoke”

The researchers observed for the first time the evolution of hot gas coming from an active black hole: they were able to observe these structures, strongly reminiscent of the smoke flows produced by volcanic eruptions with unprecedented precision and at a scale of hundred million time. year. Credit: University of Bologna An international team of […]

Volcanic mountains

Samples from China find younger volcanic rocks on Moon

Last week, we discussed the first results of analysis of lunar samples reported by the Chinese Chang’e-5 mission, which revealed that about 10% of these rocks did not come from the landing site of Oceanus Procellarum. This landing site is primarily known to be solidified lava near an ancient volcanic eruption. But while these so-called […]

Volcanic mountains

Volcanic islands at boiling point

There is nothing we can do about flank collapses except have a good early warning system. Don’t worry about it ”, the mainstream media are running the risk that the volcanic eruption in La Palma, in the Canary Islands, turns into a mega-tsunami. The media definitely overstated this risk when it was first suggested twenty […]

Block mountains

Sierra Nevada mountains – WorldAtlas

The Sierra Nevada Mountains, sometimes referred to as the “Range of Light,” are one of the most beautiful continuous mountain ranges in the United States. Although the Rockies are the longest mountain range in the United States, the Sierra Nevada is the longest continuous, unified mountain range. The mountain range is located in the western […]

Hotspot volcanoes

The explosive story of “space volcanoes” on 9 worlds close to “fire and ice”

Lava flows from Maat Mons, an 8 km high volcano located on the planet Venus. | Location: Venus. … [+] (Photo by Lee Corkran / Sygma via Getty Images) Sygma via Getty Images First it was Fagradalsfjall in Iceland. Now Cumbre Vieja is erupting in La Palma in the Canary Islands. 2021 has been an […]

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Extinct style of plate tectonics explains the flat mountains of early Earth

Source: Geophysical research letters Geochemical and geological records provide key information about the tectonic history of the Earth, but in the case of mountains during the Proterozoic Eon, the records conflict with each other: geochemical evidence indicates that the crust was thin and warm, generally indicating that mountains could not have formed, but rocks left […]

Volcanic mountains

Triassic volcanic eruptions helped dinosaurs take over Earth

the Carnian stage (which spanned 237 to 227 million years) of the Triassic period marks one of the most significant intervals of the past 250 million years. Within two million years, the global biota underwent major changes, with dinosaurs becoming the dominant group on the planet. These events coincide with a remarkable interval of intense […]

Volcanic mountains

Climate change caused by volcanic eruptions laid the groundwork for the rise of dinosaurs | Scientific and technological news

A new study has revealed how the rise of dinosaurs over 230 million years ago coincided with environmental changes brought on by massive volcanic eruptions. Known as the Carnian Rainfall of the Late Triassic (CEP), this interval of enormous climate change has seen temperatures and humidity rise across the globe. Prior to CPE, the climate […]

Hotspot volcanoes

Dinosaur Rise Driven By Volcanoes Causing Climate Change

Ecological changes following intense volcanic activity during the Carnian rainfall event 230 million years ago paved the way for dinosaurs to become the dominant species. Credits: Pixabay The rise of dinosaurs coincided with environmental changes brought on by major volcanic eruptions more than 230 million years ago, a new study finds. The Carnian rainfall event […]

Fold mountains

Ouachita Mountains – WorldAtlas

The Ouachita Mountains are a mountain range in the south-central United States that stretches approximately 360 kilometers east to west from central Arkansas to southeast Oklahoma. The mountain range takes its name from two Choctaw words meaning “land of the great buffaloes.” The Ouachitas are a continuation of the Ozark Mountains, the two mountain ranges […]

Volcanic mountains

Early Mars saw volcanic supereruptions, researchers say

Using high resolution images of NASA’s Mars Reconnaissance Orbiterplanetary scientists have discovered 4 billion year old layered deposits containing minerals consistent with weathered volcanic ash in a northern region of Mars called Arabia Earth. They estimate that the volcanic ash observed in this region is the result of between 1,000 and 2,000 individual explosive eruptions […]

Hotspot volcanoes

In Hawai’i Volcanoes National Park, witness the power of the Earth

Each piece begins with a bird’s-eye view of the history and impact of a unique American site, then zooms in to reveal the experience on the ground. In this article, Hawaii-based writer Catherine Toth Fox explores the fiery magic of Hawai’i Volcanoes National Park. © Michael Parkin, Folio Art 35,000 feet: the beginnings of Hawaii […]

Hotspot volcanoes

Venus is younger than Mars, still has active volcanoes like Earth: study

Venus is believed to be younger and emerged much later after the formation of our closest neighbor Mars, said a group of scientists who examined active volcanic sites first. Published in the journal Solar System Research, the conclusion was jointly drawn by a team of scientists from Russia, Spain, Finland, Italy and Spain. Scientists are […]

Volcanic mountains

The biggest volcanic eruptions of all time

For hard evidence of nature’s ability to degenerate into catastrophic disaster, look no further than the volcano. These metaphorical portals to hell, which currently number around 1,500 worldwide, not only spew volcanic ash and lava, but can dramatically alter the climate and course of world events. Most are stratovolcanoes, cone-shaped elevations built over time from […]

Volcanic mountains

Volcanic eruptions may have caused the first “puffs” of oxygen in Earth’s atmosphere – ScienceDaily

A new analysis of 2.5 billion-year-old Australian rocks reveals that volcanic eruptions may have stimulated population surges of marine microorganisms, creating the first breaths of oxygen in the atmosphere. This would change the existing stories of Earth’s early atmosphere, which assumed that most changes in the early atmosphere were controlled by geological or chemical processes. […]

Hotspot volcanoes

Have volcanoes stabilized the temperatures on the Earth’s surface?

London: A new study has found that volcanoes were responsible for stabilizing Earth’s surface temperatures and acted as a safety valve for Earth’s long-term climate. The results of the study were published in the journal “Nature Geoscience”. Scientists at the University of Southampton have discovered that vast chains of volcanoes were both responsible for the […]

Hotspot volcanoes

Volcanoes act as a safety valve for Earth’s long-term climate – Stabilizing surface temperatures

Continental volcanic arcs such as this one in Kamchatka, Russia are rapidly weathered, leading to the removal of CO2 from the atmosphere over geologic time. Credit: Tom Gernon, University of Southampton Scientists from the University of Southampton have found that vast chains of volcanoes are responsible for both the emission and removal of atmospheric carbon […]

Hotspot volcanoes

Volcanoes have acted as a safety valve for Earth’s long-term climate

Continental volcanic arcs like that of Kamchatka, Russia, are rapidly altered, causing CO2 to be removed from the atmosphere over geological time. Credit: Tom Gernon, University of Southampton Scientists at the University of Southampton found that vast chains of volcanoes were responsible for both the emission and then removal of atmospheric carbon dioxide (CO2) over […]

Hotspot volcanoes

The Veyo and Santa Clara volcanoes are 10 minutes apart. Here’s how to hike them. – Cedar City News

Cinder cone volcano in the Santa Clara volcanic field, date unspecified | Public Domain Image, St. George News ST. GEORGE – The small town of Veyo, Utah – just 20 minutes northwest of St. George with a total population of 822 – is nestled in the shadow of a volcano. Prominent Cinder Cone Volcano, St. […]

Volcanic mountains

Visit volcanic deposits, landslide rubble and more in southern Alberta

With scorching temperatures expected this weekend, what could be better than getting into an air-conditioned vehicle and going on a road trip through Alberta? Calgary geologist Dale Leckie, author of The Scenic Geology of Alberta: A Roadside Hiking and Tourism Guide has suggestions on what to visit. He joined The stretch Thursday to share some […]

Block mountains

Scientific guide to the mountains | Training, wildlife and higher peaks

How are mountains formed? Most mountains owe their existence to the movement of tectonic plates, large sections of the earth’s crust. Where two tectonic plates converge, they warp and bend, resulting in the most common type: folded mountains. The Himalayas, for example, are the result of the slow collision of the Asian and Indian plates. […]

Hotspot volcanoes

Which islands have the most impressive active volcanoes?

Both islands are known for their active volcanoes and for those who fascinate them, it is a difficult choice to decide which are the best. Iceland and the Hawaiian Islands could not be more contrasted. While the Hawaiian Islands are tropical, Iceland is subarctic. While the natives of the Hawaiian Islands are Polynesians, the Icelanders […]

Volcanic mountains

Scientists name the underwater volcanic massif after landmarks featured in the Lord of the Rings trilogy

Sonar image of the “Eye of Sauron” volcano and nearby seamounts on the seabed southwest of … [+] Christmas Island. Phil Vandenbossche & Nelson Kuna / CSIRO Inspired by the description of Mordor, presented in JRR Tolkien’s Lord of the Rings saga as a kingdom of black volcanic plains surrounding the active volcano Mount Doom, […]

Hotspot volcanoes

Volcanoes on Mars could be active

Recent explosive volcanic deposit around a fissure in the Cerberus Fossae system. NASA / JPL / MSSS / The Murray Lab Evidence of recent volcanic activity on Mars shows that eruptions may have occurred in the past 50,000 years, according to a new study by researchers at the Lunar and Planetary Laboratory at the University […]

Hotspot volcanoes

Volcanoes on Mars could be active, increasing the possibility that the planet is recently habitable

Daniel Stolte, University Communications, and Alan Fischer, Planetary Science Institute May 6, 2021 Recent explosive volcanic deposit around a fissure in the Cerberus Fossae system. NASA / JPL / MSSS / The Murray Lab Evidence of recent volcanic activity on Mars shows that eruptions may have occurred in the past 50,000 years, according to a […]

Hotspot volcanoes

How and why do volcanoes erupt?

This week has seen two major volcanic eruptions, so now is the perfect time to try to understand why these spectacular events are happening. Dr Siobhán Power of Geological Survey of Ireland answers a few questions, but let’s catch up with the news first … Earlier in the week, Etna in Italy exploded. Read the […]

Hotspot volcanoes

Cornish volcanoes that were active hundreds of millions of years ago

You might find it hard to imagine, but Cornwall’s past includes barren deserts, terrifying prehistoric beasts, and volcanoes. Our county was once an active region of volcanism, and lava-spitting volcanic eruptions shaped the local landscape for millions of years to come. Although Britain’s last volcanoes are believed to have erupted around 60 million years ago, […]

Fold mountains

The main types of mountains – the ups and downs of the Earth

Mountains have always played a central role in human culture, but it is only recently that we have understood how they form and develop. To this day, these magnificent reliefs still hold many secrets. There are several ways to analyze and classify mountains depending on your science discipline. Here we will describe in detail some […]

Hotspot volcanoes

Australia has many ancient volcanoes. But how were they formed?

If you take a trip this summer, you may pass several ancient sentinels of Australia’s volcanic past. Many of them, like the Glass House Mountains, are hard to miss. These ancient volcanic plugs are all that remains of eruptions that occurred around 25 million years ago. They are among hundreds of ancient volcanic remnants that […]

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

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

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 […]

Volcanic mountains

How volcanic mountains cool the climate

Through subtle changes and tugs across the planet, activity on Earth perpetually works to balance the global thermostat, from leaves sucking carbon dioxide out of the atmosphere to polar ice reflecting the sun’s rays back into it. space. Today, scientists have delved into another source of long-term climatic equilibrium: the formation of volcanic mountain ranges. […]

Hotspot volcanoes

10 of the biggest “super volcanoes” – HeritageDaily

A supervolcano is classified as a volcano with an eruption magnitude of 8, the largest Volcanic Explosivity Index (VEI) value where the volume of deposits for that eruption is greater than 1,000 cubic kilometers (240 cubic miles) . Supervolcanoes occur when mantle magma rises in the crust and is unable to break through a fissure […]

Hotspot volcanoes

An incredible “lost world” of underwater volcanoes discovered at the bottom of the ocean

Hidden beneath the waves off the east coast of Australia, scientists have discovered a “lost world” of epic volcanic peaks buried beneath the Tasman Sea, never before seen by human eyes. This chain of volcanic seamounts – underwater mountains formed by ancient, extinct volcanoes – rise about 3 kilometers (1.9 miles) above the ocean floor. […]

Block mountains

Block mountains archives – universe today

Seeing the size and majesty of the mountains, the ancient humans couldn’t help but feel that they were standing in the presence of something… divine. And in the belief systems of many ancient cultures, it was generally held that mountains were something spiritual – serving either as a home for the gods, or as a […]