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Latest Igneous rocks Stories

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2010-11-03 14:25:27

Defying models, some regions drier, others wetter Scientists have long known that large volcanic explosions can affect the weather by spewing particles that block solar energy and cool the air. Some suspect that extended "volcanic winters" from gigantic blowups helped kill off dinosaurs and Neanderthals. In the summer following Indonesia's 1815 Tambora eruption, frost wrecked crops as far off as New England, and the 1991 blowout of the Philippines' Mount Pinatubo lowered average global...

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2010-11-01 13:20:00

Scientists said Monday that torrents of water are pouring from a glacier that sits on Iceland's most active volcano, which indicates that the mountain is growing hotter and may be erupting soon. University of Iceland geophysicist Pall Einarsson told the Associated Press (AP) on Monday that the flood which started Thursday at the Grimsvotn volcano is similar to the one in 2004 that lasted five days and ended with an eruption that disrupted European air traffic. Millions of air travelers...

2010-11-01 09:59:00

NEW YORK, Nov. 1, 2010 /PRNewswire/ -- The project known as The World Park, an event and campaign created for New York's Parks and Recreation group, launched in Central Park on Arbor Day weekend 2010. The event received over 1,500 participants and has been announced the FWA Mobile Site of the Day and finalist at the 2011 One Show Interactive for its innovative and integrated branding campaign. "The project has received so much recognition from the industry -- we couldn't be more excited....

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2010-11-03 09:15:00

Mount Merapi launched lava and hot ash into the skies for the fourth time in eight days Wednesday morning, sending villagers and refugees scurrying to move further away from the Indonesian volcano following its most intense eruptions yet. Reporting from Jakarta, Slamet Riyadi of the Associated Press (AP) said, "The eruption lasted more than an hour and shot searing ashes miles into the sky. Panicked people in [the] Umbulhardjo refugee camp screamed and children cried when they saw the...

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2010-10-20 13:45:31

Nevada and Hawaii researchers complete study of Kilauea health clinic records Kilauea Volcano on Hawaii's big island has been erupting on its east rift since 1983. But, in March 2008, an additional eruption vent opened at the volcano's summit, resulting in about triple the amount of sulfur dioxide gas (SO2) emissions drifting to the local community of Ka'u, raising health concerns over the risks associated with exposure to "vog," as the islanders refer to this volcanic air pollution. A...

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2010-10-16 10:00:00

Scientists are crediting satellite imagery with helping to predict where volcanic eruptions could strike. It is well known that earthquakes can stress Earth's crust and trigger subsequent quakes, but there has been no proof of this for volcanoes until now. In September 2005, a volcanic event in Ethiopia's Afar Desert forced magma up through rocks in a crack, known as a dyke, resulting in a 60-km-long tear in Earth's crust. Over the next four years, 12 more dykes were created in the same...

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2010-10-07 08:28:03

New research suggests that climate change following massive volcanic eruptions drove Neanderthals to extinction and cleared the way for modern humans to thrive in Europe and Asia. The research, led by Liubov Vitaliena Golovanova and Vladimir Borisovich Doronichev of the ANO Laboratory of Prehistory in St. Petersburg, Russia, is reported in the October issue of Current Anthropology. "[W]e offer the hypothesis that the Neanderthal demise occurred abruptly (on a geological time-scale) "¦...

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2010-09-28 09:35:00

Researchers working with the British Geological Survey (BGS) are studying ash samples collected from the Eyjafjallajökul volcano that could shed new light on the dispersion of volcanic ash following an eruption, according to a Tuesday report by BBC News. Neil Bowdler, a science reporter with the British news agency, reported that the samples were collected following the massive March eruption of the Icelandic volcano, and that they could help scientists find out why ash that was fine...

4ea59275484a17171f244ab76f7533601
2010-09-27 07:30:00

A better way to pinpoint where volcanic eruptions are likely to occur has been produced by an international team of geophysicists. Scientists from the universities of Leeds, Purdue, Indiana and Addis Ababa, investigated volcanic activity occurring in the remote Afar desert of Northern Ethiopia between 2005 and 2009. By studying a rare sequence of 13 magmatic events "“ where hot molten rock was intruded into a crack between the African and Arabian plates "“ they found that the...

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2010-09-27 06:12:47

Geologists reported on Sunday that a swarm of small earthquakes that struck western Saudi Arabia last year was actually the rumbling of a volcano. Over 30,000 minor quakes took place between April and June 2009 within an ancient solidified lava field called Harrat Lunayyir, which damaged some buildings near Al Ays and prompted the authorities to evacuate the 40,000 residents from the region. Most of the quakes measured less than two on the scale of magnitude, but several were hefty,...


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
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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