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Latest Geology Stories

2014-01-06 08:21:32

VANCOUVER, Jan. 6, 2014 /PRNewswire/ - Nevsun Resources Ltd. (TSX:NSU)(NYSE MKT:NSU) is pleased to announce the final assay results from the 2013 resource definition drilling program at the Northwest Zone poly-metallic massive sulphide deposit, located 2 kilometers from the Bisha processing plant within the Bisha mining license. HIGHLIGHTS -- Highly anomalous gold values intersected in massive and stringer sulphides -- Four down dip step-out holes...

Utah Copper Mine Landslide Triggered Earthquakes
2014-01-06 07:39:40

University of Utah Record-breaking slide would bury Central Park 66 feet deep Last year's gigantic landslide at a Utah copper mine probably was the biggest nonvolcanic slide in North America's modern history, and included two rock avalanches that happened 90 minutes apart and surprisingly triggered 16 small earthquakes, University of Utah scientists discovered. The landslide – which moved at an average of almost 70 mph and reached estimated speeds of at least 100 mph – left a...

Supervolcanoes And Volcanic Activity
2014-01-06 03:54:43

redOrbit Staff & Wire Reports - Your Universe Online One team of researchers has uncovered the factors that determine the frequency and magnitude of volcanic activity, while another has identified the triggers for the rare and explosive eruptions experienced by supervolcanoes, according to studies currently appearing in the advanced online edition of the journal Nature Geoscience. In one paper, ETH-Zurich professor Carmen Sanchez-Valle and her colleagues used an X-ray beam at the...

Multi-Study Focuses On Link Between Lushan, Wenchuan Earthquakes
2014-01-03 09:30:34

April Flowers for redOrbit.com - Your Universe Online New research, published in Seismological Research Letters, suggests that the 32-mile segment of the fault northeast of the 2013 Lushan rupture is the place to watch for the next major earthquake in the region. Papers published in the special section of the journal suggest that the 2008 Wenchuan earthquake triggered the magnitude M6.6 Lushan quake. Huajian Yao, professor of geophysics at the University of Science and Technology of...

Subvertical Faults Can Create Electrical Light Shows During Earthquakes
2014-01-03 05:56:52

April Flowers for redOrbit.com - Your Universe Online A new study, published in Seismological Research Letters, reveals that rare earthquake lights are more likely to occur on or near rift environments. These environments are where subvertical faults allow stress-induced electrical currents to flow rapidly to the surface. Scholars have been intrigued by the luminous phenomena known as earthquake lights (EQL) since the earliest days of seismology. EQL appear before or during earthquakes,...

Molten Rock Support Atlas Mountains In Morocco
2014-01-03 04:28:44

April Flowers for redOrbit.com - Your Universe Online The standard model for mountain structure, in which high topography must have deep roots for support, is defied by the Atlas Mountains, according to a new study from the Earth Sciences department at the University of Southern California (USC). The team of scientists created a new model which reveals that the Atlas Mountains are floating on a layer of hot molten rock flowing beneath the lithosphere — the Earth's most rigid outer...

2014-01-02 08:22:13

LONDON, January 2, 2014 /PRNewswire/ -- The long haul travel specialists are offering ITV This Morning viewers the opportunity to win 10 nights All Inclusive at the five-star Maritim Hotel Mauritius is the definition of an island paradise; there may be many idyllic beach locations across the world, but very few can match the secluded palm-fringed shores on this small island, situated in the warm waters of the Indian Ocean. Silky soft sand and gentle,...

2013-12-31 08:20:51

LITTLETON, Colo., Dec. 31, 2013 /PRNewswire/ -- Ur-Energy Inc. (TSX:URE, NYSE MKT:URG) ("Ur-Energy" or the "Company") is pleased to announce that it has confirmed the increase in resources at Lost Creek announced November 18, 2013, and has issued an updated Preliminary Economic Assessment ("PEA") for the Lost Creek Property (the "Property") which supersedes the April 30, 2012 National Instrument 43-101 Preliminary Economic Assessment titled "Preliminary Economic Assessment of the Lost...

Dense Earth Crust Was Recycled Into The Mantle During Archean Eon
2013-12-31 07:31:36

redOrbit Staff & Wire Reports - Your Universe Online The temperature of the Earth’s mantle during the Archean eon some four billion years ago was significantly higher than it is today, causing the crust to become unstable and drip back down into the mantle, according to research published this month in Nature Geoscience. As part of the study, Dr. Tim Johnson of the Institute of Geosciences at Johannes Gutenberg University Mainz (JGU) and his colleagues created model calculations...

El Salvador Volcano Erupts Mass Evacuation
2013-12-30 16:06:55

Ranjini Raghunath for redOrbit.com - Your Universe Online El Salvador's Chaparrastique volcano - also known as the San Miguel Volcano - erupted suddenly on Sunday, causing local authorities to start evacuating thousands of residents within a two-mile radius. The eruption started at 10:30 am local time, spewing hot ash and smoke into the air up to a height of more than 3 miles. Reuters reported that some 5,000 people live in the San Miguel region around the volcano. Two people had...


Latest Geology Reference Libraries

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...

Jabal al-Tair Island
2014-04-10 11:56:15

Jabal al-Tair Island, known by many other names including Tair Island and Jebel Teir, is a volcanic island that is located in the Red Sea and is under the jurisdiction of Yemen. It reaches an elevation of 801 feet and is about 1.9 miles in length. The island is comprised of Jabal al-Tair, a stratovolcano that was considered extinct in 1982, although it erupted in 2007. In 1900, the British Admiralty described the volcano as having a steep, conical shape, making it a good landmark for ships...

Mauna Kea
2014-04-10 11:49:35

Mauna Kea is a dormant shield volcano that is located on the island of Hawaii and reaches an elevation of 13,803 feet. It is one of five volcanoes that comprise the island and is thought to be about one million years old. Mauna Kea, like all Hawaiian volcanoes, was created when the Pacific tectonic plate passed over a volcanic hotspot. The Hawaiian volcanoes, which extend over an area known as the Hawaiian Ridge – Emperor Seamount chain, have been well studied, but it is not known how the...

Zubair Group
2014-04-10 10:08:46

Zubair Group, also known as Zubayr Group or Al Zubair Group, is a chain of volcanic islands belonging to Yemen that are located on top of a shield volcano in the Red Sea. Zubair Group The largest island, known as Zubair, is among the youngest islands, which also include Saba, Saddle, and Haycock. The shield volcano underneath the islands began a period of eruptions and eventually quieted down, followed by a period of explosive and effusive eruptions that formed the islands that are present...

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....

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