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Latest Igneous rocks Stories

Yellowstone: New Picture Emerges Of A More Active, Less 'Super' Volcano
2012-04-30 08:36:47

Brett Smith for Redorbit.com New research is casting doubts on the frequency or even the possibility of a ℠super-eruption´ that could blot out the sun from the Earth with a thick veil of volcanic ash. A joint research team from Washington State University and the Scottish Universities Environmental Research Centre said the biggest Yellowstone eruption on record was actually two different eruptions at least 6,000 years apart. According to the study published in the June...

Image 1 - Lava Flows On Mars Resembles Patterns On Earth
2012-04-27 03:52:42

Lee Rannals for RedOrbit.com New photos taken by the High Resolution Imaging Science Experiment (HiRISE) camera on the Mars Reconnaissance Orbiter show unique lava flows on Mars that resemble patterns seen on Earth. The lava flows reveal coiling spiral patterns that resemble snail or nautilus shells, according to research published in the scientific journal Science on Friday. On Earth, lava coils can be found on the Big Island of Hawaii, mainly on the surface of ropey pahoehoe lava...

NASA Satellite Captures Video Of Mexico's Popocatepetl Volcanic Ash Cloud
2012-04-23 09:20:33

[ Watch the Video ] Mexico's Popocatepetl Volcano has re-awakened and has been emitting gas and ash. NOAA's GOES-13 satellite has been viewing the ash cloud, and it was documented in a short new video released by NASA's GOES Project on Friday. NOAA's Geostationary Operational Environmental Satellite, GOES-13, captures visible and infrared images of weather over the eastern U.S. every 15 minutes, and spotted an ash and gas cloud streaming from Mexico's Popocatepetl Volcano over several...

Eruption Threat Level Increased At Volcano Near Mexican Capital
2012-04-21 05:40:16

The Popocatepetl volcano located outside of Mexico City has started spewing ash and fragments of glowing, molten rock thousands of feet down its slopes, forcing officials at one of the world's largest cities to increase the volcano's alert level, BBC News and the Associated Press (AP) are reporting. The volcano, which is also commonly referred to as 'Popo,' has been expelling small amounts of ash on an almost daily basis since entering a round of eruptive activity back in 1994, the AP...

Volcanic Plumbing Provides Clues on Eruptions and Earthquakes
2012-04-13 03:49:08

Two new studies into the "plumbing systems" that lie under volcanoes could bring scientists closer to understanding plate ruptures and predicting eruptions–both of which are important steps for protecting the public from earthquake and volcanic hazards. International teams of researchers, including two scientists from the University of Rochester, have been studying the location and behavior of magma chambers on the Earth's mid-ocean ridge system–a vast chain of volcanoes along...

2012-03-30 08:29:09

Two new studies into the "plumbing systems" that lie under volcanoes could bring scientists closer to predicting large eruptions. International teams of researchers, led by the University of Leeds, studied the location and behavior of magma chambers on the Earth's mid-ocean ridge system - a vast chain of volcanoes along which the Earth forms new crust. They worked in Afar (Ethiopia) and Iceland - the only places where mid-ocean ridges appear above sea level. Volcanic ridges (or...

2012-03-28 08:52:51

Topics in the 26 March posting of GEOLOGY include anthropogenic impacts on the Indus River into the Arabian Sea; possible electrical conductivity beneath the Yellowstone hotspot track; mountain-forming volcanoes and deadly debris flows; melting beneath the Colorado Plateau; widespread weathered glass on Mars; and a new view into Mars' global aqueous history. GEOLOGY articles published ahead of print can be accessed online at http://geology.gsapubs.org/content/early/recent. When articles...

2012-03-13 17:00:08

Georgia Tech instruments measure unprecedented deformation Do a Google image search for “Greece.” Before you find pictures of the Parthenon or Acropolis, you´ll see several beautiful photos of Santorini, the picturesque island in the Aegean Sea. The British Broadcasting Company named it the world´s best island in 2011. Santorini is a tourist magnet, famous for its breathtaking, cliff side views and sunsets. It´s also a volcanic island that has been relatively...

2012-03-13 09:08:43

Highlights include several studies based in the U.S. Sierra Nevada, including a description of "magma fingers" and the formation of granite in the high Sierra crest near Yosemite National Park. Other studies investigate knickzones in the South Fork of the Eel River, California; the Rodgers Creek-Maacama fault system in the northern California Coast Ranges and its relation to the San Andreas fault; and the frequency and severity of destructive debris flows in the Pacific Northwest....

Volcanic Activity In Alaska Heats Up
2012-02-20 11:16:06

Several volcanoes in our northernmost state of Alaska are showing increased signs of activity, and scientists are keeping a wary eye on them both, reports Yareth Rosen for Reuters. Kanaga Volcano, located near the port city of Adak, experienced a tremor Saturday morning followed by more seismic activity for about an hour, said the Alaska Volcano Observatory. This activity follows more of the same at Mount Cleveland, which threatens to make life troubling for Alaskans. Last erupting in...


Latest Igneous rocks Reference Libraries

Mount Nyiragongo
2014-08-28 11:22:30

Mount Nyiragongo is an active stratovolcano that is located in the Democratic Republic of the Congo. This volcano is part of the Virunga Mountains and is located in Virunga National Park. It reaches an elevation of 11,385 feet and has a crater that reaches 1.2 miles in width. This crater typically holds a lava lake that has varied between 2,000 and 10,660 feet in depth. It is not known how long this volcano has been active, but at least 34 eruptions have been recorded since 1882. Mount...

Chaitén
2014-08-28 10:38:21

Chaitén is a volcanic caldera that is located in southern Chile that reaches an elevation of 3,681 feet. It is thought that this volcano once held a rhyolite obsidian lava dome that reached 3,156 in height, but this was destroyed after its most recent eruption in 2008. In the past, this volcano has released grey obsidian, which was used by pre-Columbian cultures to make many objects, some of which have been found 250 miles away from the volcano. Chaitén experienced the beginning of a new...

Hualālai
2014-04-10 12:06:55

Hualālai is a dormant shield volcano that is located on the island of Hawaii and is one of five volcanoes that form the island. It reaches an elevation of 8,271 feet and is thought to have emerged from the sea about 300,000 years ago, making it the third youngest volcano on the island. Its shape is rough compared to younger volcanoes and it holds three rift zones that are covered with over one hundred cinder cones and spatter cones. Although it does not hold a caldera at its summit, it does...

Kohala
2014-04-10 10:03:58

Kohala is an extinct shield volcano that is located on the island of Hawaii and reaches an elevation of 5,480 feet. It is one of five volcanoes that comprise the island of Hawaii and is thought to be about one million years old, although it only emerged from the sea about 500,000 years ago. Because its last eruption is thought to have occurred about 120,000 years ago, based on studies conducted on hardened lava flows, this volcano is not thought to pose a threat to inhabitants on the island....

Askja
2014-04-09 16:13:20

Askja is an active stratovolcano that is located in the isolated central highlands in Iceland. It reaches an elevation of 4,974 feet and its name literally means caldera, or box, in the Icelandic language. The area can only be reached during a period of a few months and because it located in the rain shadow of the Vatnajökull glacier to the northeast, it only receives 17.7 inches of rain per year. One of Askja’s smaller craters holds a lake known as Öskjuvatn, which is often frozen over...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'