The Demand for Emeralds is Rising|
December 3, 2013 | CNN
“The price for high-quality emeralds has increased by a factor of 10 since 2009, and the price of Colombian emeralds is set to increase by at least 25% this year alone.” Quoted from the CNN article.
Most Popular Items for November|
December 2, 2013 | Geology.com
The World’s Largest Emerald Mine
What is Iris Agate?
New Volcanic Island Southeast of Japan
The Enormous Volcanic Eruption that Historians Never Recorded
A Super River from the Southwestern United States to the Labrador Sea?
Typhoon Haiyan Images
Comet Ison is Visible to the Naked Eye
New Super Predator Dinosaur
What is Iris Agate?|
November 27, 2013 | Geology.com
““Iris Agate” is a name used for a finely-banded agate that produces a spectacular display of color when it is cut properly and illuminated from a direction that sends light through its very thin bands.”
Cave of the Hands
Image by edurivero © iStockphoto.com
November 26, 2013 | Geology.com
Cueva de las Manos (Spanish for “Cave of the Hands”) is a cave in Argentina that is famous for a wall covered with hand silhouettes produced by ancient people between 13,000 and 9,000 years ago.
Understanding Galapagos Volcanoes|
November 25, 2013 | USGS
“The chance transit of a satellite over the April 2009 eruption of Fernandina volcano — the most active in South America’s famed Galápagos archipelago — has revealed for the first time the mechanism behind the characteristic pattern of eruptive fissures on the island chain’s volcanoes.” Quoted from the USGS Newsroom.
Natural Gas Flaring from Space|
October 30, 2013 | Geology.com
We have posted views of Earth from NASA’s Suomi satellite that show night illumination and natural gas flaring for oil industry sites in the Bakken Formation, Eagle Ford Shale, Alaska North Slope, United States Gulf, Mexican Gulf, Venezuela Orinoco Field, Brazil offshore basins, North Sea, North Africa onshore, west Africa offshore, and Persian Gulf.
Earth’s Largest Volcano|
October 21, 2013 | Geology.com
Tamu Massif is Earth’s “largest volcano” but Mauna Kea and Ojos del Salado exceed Tamu in height and altitude.
October 13, 2013 | geology.com
Ametrine, a combination of amethyst and citrine is a bicolor quartz and a gemstone of growing popularity.
It is produced commercially from just one mine in the world, located in eastern Bolivia.
Brazil Oil and Gas Report|
October 1, 2013 | Energy Information Administration
“Brazil is the 8th largest total energy consumer and 10th largest producer in the world. [...] Discoveries of large offshore, pre-salt oil deposits could transform Brazil into one of the largest oil producers in the world.” Quoted from the Energy Information Administration country report.
Peruvian Cloud Forests in Jeopardy|
September 24, 2013 | Wake Forest University
“Peru’s cloud forests are some of the most biologically diverse ecosystems in the world. Researchers have new evidence that shows rapid 21st century warming may spell doom for tree species in Peruvian cloud forests, with species losing 53 to 96 percent of their populations.” Quoted from the Wake Forest University press release.
Wildfires and Dust Storm in Argentina|
September 18, 2013 | NASA Earth Observatory
NASA Earth Observatory has satellite images of forest fire smoke and dust from a dry saline lake bed being carried by the wind.
Genetic Basis for Living at High Altitude|
September 15, 2013 | UC San Diego
“More than 140 million people have permanently settled on high-altitude regions, on continents ranging from African and Asia to South America. The low-oxygen conditions at such high altitudes present a challenge for survival, and these geographically distinct populations have adapted to cope with hypoxia, or low levels of oxygen in the blood.” Quoted from the UC San Diego press release.
World’s Most Dangerous Roads|
August 25, 2013 | History Channel
The History Channel has a video about the extremely dangerous roads in the Andes mountains of Peru and Bolivia. This is as much a story about landslides and rock falls as it is about roads.
Prospecting for Graves with Geophysical Tools|
August 22, 2013 | EarthMagazine
An article on the EarthMagazine.org website reports on the use of geophysical tools (ground penetrating radar, electrical resistivity, bulk ground conductivity, gradient magnetometry) for finding graves in Colombia.
One to Five Snakes Per Square Meter?|
July 18, 2013 | AtlasObscura.com
An island off the coast of Sao Paulo, Brazil is said to have at least one venomous snake per square meter. The Brazilian Navy forbids visitors to the uninhabited (by humans) island.
Eruptions at Tungurahua|
July 16, 2013 | CBS News
Tungurahua volcano continued its activity on Sunday by producing a plume of gas and ash that rose to an altitude of over 45,000 feet.
Shale Oil and Shale Gas in 41 Countries|
June 12, 2013 | Energy Information Administration
The Energy Information Administration has published: “Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States“.
Understory Fires in the Amazon|
June 9, 2013 | NASA
“Using an innovative satellite technique, NASA scientists have determined that a previously unmapped type of wildfire in the Amazon rainforest is responsible for destroying several times more forest than has been lost through deforestation in recent years.”
Evacuations Near Copahue Volcano|
May 28, 2013 | BBC
Thousands of small earthquakes have caused the governments of Chile and Argentina to order the evacuation of about 3000 people who live near Copahue Volcano on the southern border of those countries.
Ablation in Argentina|
May 14, 2013 | NASA Earth Observatory
NASA’s Earth Observatory has a satellite image showing how strong winds in Argentina are removing dust from inland lake beds and streaming it out over the Atlantic.