Quantcast
Icelandic volcano leads to new insight into Earths crust

Icelandic volcano leads to new insight into Earth's crust formation

Chuck Bednar for redOrbit.com - Your Universe Online An in-depth analysis of the August 2014 volcanic eruption in Iceland has shown that a new layer of the Earth’s crust is forming beneath the lava-spewing rupture, according to new research...

Latest Petrology Stories

2014-10-29 08:28:45

Award-Winning Technology Public Relations Firm Selected Based On Proven Results, Data Transfer Expertise and Dedicated Commitment To High-Tech Industry SCOTTS VALLEY, Calif., Oct.

Holuhraun fissure eruption
2014-10-27 02:30:37

Spectacular eruptions at Bárðarbunga volcano in central Iceland have been spewing lava continuously since Aug. 31. Massive amounts of erupting lava are connected to the destruction of supercontinents and dramatic changes in climate and ecosystems.

detecting water on Mars
2014-10-07 03:00:14

A Washington State University undergraduate has helped develop a new method for detecting water on Mars. Her findings appear in Nature Communications, one of the most influential general science journals.

mount st helens
2014-09-29 07:19:21

Ten years ago Wednesday, Mount St. Helens in Washington erupted after being quiet for nearly two decades, and now US Geological Survey (USGS) scientists are concerned that the volcano could mark the occasion by becoming active once again.

2014-08-27 20:20:22

Obsidian Ranks No. 217 on the 2014 Inc. 500 WASHINGTON, Aug.

Mount Rainier plumbing
2014-07-19 05:07:13

A new, detailed image of the volcanic plumbing beneath Mt. Rainier has been created by a group of researchers from the University of Utah, Woods Hole Oceanographic Institution, the College of New Jersey and the University of Bergen, Norway.

2014-07-15 23:01:44

House of Stone recently completed work of several high-end projects, including the installation of the countertops of the South-End addition of Lambeau Field. Milwaukee,

2014-05-23 13:27:42

Breaking research news from a team of scientists led by Carnegie's Ho-kwang "Dave" Mao reveals that the composition of the Earth's lower mantle may be significantly different than previously thought.

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

Volcanologists from the University of Liverpool have discovered how lava dome volcanoes erupt. This could help develop methods on predicting how volcanoes will act.

Mount St. Helens Magma Levels Rising, But No Eruption Imminent
2014-05-03 05:03:06

While magma levels are rising at Mount St. Helens in Washington, there is now evidence that the active stratovolcano will not be erupting any time soon.


Latest Petrology Reference Libraries

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...

28_e9750264d5476c85f9be09d17bc6fd51
2005-05-26 12:03:39

Biotite is a common phyllosilicate mineral that contains potassium, magnesium, iron and aluminium. It is sometimes called "iron mica" and is found in granitic rocks, gneisses, and schists. Like other mica minerals, biotite has a highly perfect basal cleavage, its flexible sheets easily flaking off. It has a hardness of 2.5 - 3, a specific gravity of 2.7 - 3.1, is colored greenish to brown or black, and can be transparent to opaque. Biotite is occasionally found in large sheets, especially in...

28_56635877b282726a86b25cf3e98722c2
2005-05-26 11:30:45

Chert is a fine-grained silica-rich cryptocrystalline sedimentary rock that may contain small fossils. It varies greatly in color from white to black, but most often manifests as gray, brown, grayish brown and light green to rusty red; its color is an expression of trace elements present in the rock, and both red and green are most often related to traces of iron (in its oxidized and reduced forms respectively). It outcrops as nodules in limestone, chalk, and dolostone formations as a...

28_42121cee4c09c0898f52263bea588d54
2005-05-26 11:26:59

Chromite, iron magnesium chromium oxide: (Fe,Mg)Cr2O4, is an oxide mineral belonging to the spinel group. Magnesium is always present in variable amounts, also aluminium and iron substitute for chromium. Chromite is found in peridotite and other layered ultramafic intrusive rocks and also found in metamorphic rocks such as serpentinites. Ore deposites of chromite form as early magmatic differentiates. It is commonly associated with olivine, magnetite, serpentine, and corundum. Chromite is...

28_b760796d3dace508242e89fc53d49081
2005-05-26 11:13:08

In geology, a conglomerate is a rock consisting of other stones that have been cemented together. Conglomerates are sedimentary rocks consisting of subangular clasts and are thus differentiated from breccias, which consist of angular clasts. Both conglomerates and breccias are characterized by clasts larger than sand (>2 mm). There are two varieties of conglomerate, defined by texture: paraconglomerates and orthoconglomerates. Paraconglomerates are one of two varieties of conglomerate...

More Articles (18 articles) »
Word of the Day
plim
  • To swell, as grain or wood with water.
The word 'plim' is probably a variant of the word 'plum'.
Related