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Latest Plate tectonics Stories

New Volcanic Revelations May Help Predict When Eruptions Will Occur
2014-05-05 09:10:30

[ Watch the Video: New Insight May Help Predict Volcanic Eruption Behavior ] Gerard LeBlond for redorbit.com - Your Universe Online Volcanologists from the University of Liverpool have discovered how lava dome volcanoes erupt. This could help develop methods on predicting how volcanoes will act. The process of frictional melting determines how the volcano will erupt. The speed of the lava rise and how much friction it creates is determined by this process. Within the lava dome the...

Understanding Mudslides And Other Debris Flows Using mathematics
2014-05-01 03:09:36

Ivy F. Kupec, National Science Foundation Mudslides. Landslides. Volcanic debris flows. Avalanches. Falling rocks... They can come along so suddenly that people, homes, roads and even towns are buried or destroyed without much warning. Recently, we've had dramatic reminders of this, such as the mudslide in Oso, Wash., where 41 people died; an avalanche on Mt. Everest that killed 13 experienced Sherpas and another landslide event in Jackson, Wyo. And as much as ancient Pompeii serves as...

Origins On The Behavior Of Hawaiian Volcanoes
2014-05-01 03:05:10

University of Hawaii ‑ SOEST Kīlauea volcano, on the Big Island of Hawai'i, typically has effusive eruptions, wherein magma flows to create ropy pāhoehoe lava, for example. However, Kīlauea less frequently erupts more violently, showering scoria and blocks over much of the surface of the island. To explain the variability in Kīlauea's eruption styles, a team including Bruce Houghton, the Gordon Macdonald Professor of Volcanology in Geology and Geophysics at the University of Hawai'i...

Earth core structure shutterstock_179800859
2014-04-05 06:41:23

April Flowers for redOrbit.com - Your Universe Online The contours of the Earth's crust are influenced by the high temperatures deep within the Earth's mantle, according to a new study published in Science. A team of researchers, led by Brown University, demonstrated that those temperature differences control the elevation and volcanic activity along mid-ocean ridges, the colossal mountain ranges that line the ocean floor. Forming at the boundaries of tectonic plates, mid-ocean ridges...

mercury
2014-04-05 05:12:23

redOrbit Staff & Wire Reports - Your Universe Online Using new data obtained by the MESSENGER spacecraft, researchers from Brown University in Rhode Island have discovered that explosive volcanic activity has been occurring throughout most of Mercury’s history, meaning that the planet has had the volatile compounds necessary for those eruptions for longer than anticipated. The findings, which are detailed in a recent edition of the Journal of Geophysical Research: Planets, are...

Researchers Develop New Model Of Earth's Dynamic Interior
2014-03-31 14:24:13

[ Watch The Video: Researchers Develop New Model Of Earth’s Dynamic Interior ] Nikki Cassis, Arizona State University Seeking to better understand the composition of the lowermost part of Earth’s mantle, located nearly 2,900 kilometers (1,800 miles) below the surface, a team of Arizona State University researchers has developed new simulations that depict the dynamics of deep Earth. A paper published March 30 in Nature Geoscience reports the team’s findings, which could be...

3D Computer Models Used To Solve Age-old Geologic Riddle
2014-03-26 12:15:54

[ Watch The Video: The Dynamics of Continental Accretion ] Robert Perkins, University of Southern California New study provides explanation for long-debated origin of bow-shaped mountain belts that form along the edges of colliding tectonic plates An international team of scientists that included USC's Meghan Miller used computer modeling to reveal, for the first time, how giant swirls form during the collision of tectonic plates – with subduction zones stuttering and recovering...

Newly exposed fault scarp
2014-03-25 08:07:09

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre Rift valleys are large depressions formed by tectonic stretching forces. Volcanoes often occur in rift valleys, within the rift itself or on the rift flanks as e.g. in East Africa. The magma responsible for this volcanism is formed in the upper mantle and ponds at the boundary between crust and mantle. For many years, the question of why volcanoes develop outside the rift zone in an apparently unexpected location offset by tens of...

mercury
2014-03-17 04:40:53

redOrbit Staff & Wire Reports - Your Universe Online NASA’s MESSENGER spacecraft has uncovered evidence that Mercury has contracted far more than previously believed over the past four billion years, according to research appearing in Sunday’s edition of the journal Nature Geoscience. In fact, lead author and Carnegie Institution of Washington planetary geologist Paul K. Byrne and colleagues analyzed global imaging and topographic data from the US space agency-sponsored mission...

Magma Chamber Of Galapagos' Sierra Negra Volcano Imaged In 3D
2014-03-06 10:01:48

April Flowers for redOrbit.com - Your Universe Online Some of the most active volcanoes in the world can be found in the Galapagos Islands. These volcanoes are responsible for more than 50 eruptions in the last 200 years. Even with such activity, scientists knew far more about the history of finches, tortoises and iguanas on the islands than the volcanoes upon which these unusual fauna had evolved. A new study from the University of Rochester, published in the Journal of Geophysical...


Latest Plate tectonics Reference Libraries

Nyamuragira
2014-10-04 17:56:14

Nyamuragira is an active shield volcano that is located in the Democratic Republic of the Congo. This volcano, which is part of the Virunga Mountains, reaches an elevation of 10,033 feet and is the most active volcano in Africa. This volcano is shorter than Nyiragongo, which it shares an area with, and has a low shield profile. It holds a large amount of sulfur dioxide and is blamed for much of the volcano related sulfur dioxide content in the atmosphere. Nyamuragira has erupted over forty...

Imbabura Volcano
2014-10-04 17:36:59

Imbabura Volcano is an inactive stratovolcano that is located in Ecuador and is part of the southern Ring of Fire and one of many volcanoes created along an arc by the subductions of the Coolyo Plate underneath the South American Plate. This volcano was shaped by strombolian eruptions, which are less violent than plinian eruptions and are characterized by the expulsion of lapilli, lava bombs, and cinders as well as the accumulation of tephra around the point of eruption like a vent....

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...

2014-08-28 11:14:31

Nevado del Ruiz, also known as La Mesa de Herveo, is an active stratovolcano that is located along the border of the Colombian territories, or departments, of Caldas and Tolima. It reaches an elevation of 17,457 and is shaped like a cone. This volcano is protected within Los Nevados National Natural Park, along with many other volcanoes, and it is a popular tourist destination. Winter activities like skiing are conducted here as well as hiking and fishing. Nevado del Ruiz is part of the...

Galeras
2014-08-28 10:56:28

Galeras is a stratovolcano that is located in Nariño, a Colombian controlled territory. This volcano, which reaches a height of 14,029 feet, is highly active and the most active volcano in Colombia. It primarily contains andesite and holds two calderas that were created by eruptions in the past 560,000 years. Although it is shaped like a horseshoe, eruptions have caused a cone shaped structure to build up in one of the calderas. It was labeled a Decade Volcano in 1991, despite its recent...

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Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.