June 19, 2018
Mineral Resource of the Month: Thallium
David E. Guberman, a mineral commodity specialist for the U.S. Geological Survey, compiled the following information about thallium, an extremely …
The EARTH archive
November 2013
Explore the archive by subject.
24 articles · Page 1 of 1
May 24, 2018
Travels in Geology: The wild east of Wyoming: Bone wars, outlaw hideouts and crack climbing
When vacationers plan trips to Wyoming, the western half of the state, with its grizzly bears, Grand Tetons and Yellowstone National Park, tends …
May 24, 2018
Boondocking 101: How to camp for free in Wyoming
When I drove this loop around Wyoming last spring, I did it in 10 days, camped out every night and didn’t pay for a single campsite. Wyoming is …
May 24, 2018
Getting There and Getting Around Wyoming
To drive all or part of this loop, fly into Cheyenne and rent a car. You can also fly into Denver, 160 kilometers south of Cheyenne. The loop …
January 28, 2015
Energy Notes: July 2012-2013
U.S. Oil & Petroleum Imports (million of barrels per day) ' Oil and petroleum imports data are preliminary numbers taken from the American …
January 28, 2015
Mineral Resource of the Month: Thallium
David E. Guberman, a mineral commodity specialist for the U.S. Geological Survey, compiled the following information about thallium, an extremely …
December 15, 2014
Down to Earth With: David Montgomery
From the length and breadth of his body of work, you might assume that David Montgomery, a geomorphologist at the University of Washington in …
December 3, 2014
November 10, 1934: Arizona declares war against California at Parker Dam
From above, tiny green irrigation circles draw a narrow buffer along the 2,300-kilometer course of the Colorado River like the brush strokes of a …
November 25, 2013
Bare Earth Elements: IceCube observatory spurs "dawn of new age" in astronomy
“Deep below the glacial surface at the South Pole, where the Antarctic ice is crystal clear yet pitch black, a 3-D array of more than 5,000 …
November 20, 2013
Old photos help scientists relocate 1906 San Francisco quake rupture point
Portola Valley, just south of San Francisco, is famous for its progressive approach to geology. The town was the subject of the first geologic …
November 20, 2013
World War G: Zombies, energy and the geosciences
Editor's Note: Traditionally, EARTH has published a "highlights" or "year in review" issue at the end of the year. This year, we decided to try a …
November 20, 2013
Witnessing geology in action: A rockfall in the garden of the gods
Editor's Note: Traditionally, EARTH has published a "highlights" or "year in review" issue at the end of the year. This year, we decided to try a …
November 18, 2013
MAVEN takes off for Mars to study the planet's atmosphere
NASA’s latest Mars mission, the Mars Atmosphere and Volatile Evolution (MAVEN) orbiter, successfully blasted off toward the Red Planet today to …
November 18, 2013
Science denialism: The problem that just won't go away
Editor's Note: Traditionally, EARTH has published a "highlights" or "year in review" issue at the end of the year. This year, we decided to try a …
November 18, 2013
A public service announcement: Improve geologic literacy starting on the home front
Earlier this fall, I took a paddleboarding tour along the Willamette River to Willamette Falls near Oregon City, Ore., a Portland suburb famous …
November 15, 2013
Bailing through the Boulder flood: One neighborhood's experience
Despite everything I learned in my sedimentology-stratigraphy class about alluvial fan deposits, and the debris flows and floods that emplace …
November 12, 2013
Corals find a way to adapt?
In the past few decades, corals around the world have become endangered because of rising water temperatures. However, a new study suggests that …
November 8, 2013
Slab tear explains perplexing Colombian earthquake activity
Colombia sits atop a restless intersection of tectonic plates: The Caribbean Plate is subducting along the country’s northern coast while the …
October 30, 2013
Hydrological models locate ancient human migration routes
Archaeologists and geologists have long hypothesized that major river systems flowed north through the Sahara Desert about 100,000 years ago. …
October 15, 2013
The Lizard King rises
The trouble with being a lizard is that your mammal neighbors are always trying to eat your dinner, or make you into their dinner, wielding a …
October 15, 2013
NOAA quantifies oil danger from shipwrecks
In the 1970s, mysterious oil spills began to plague hundreds of kilometers of California’s Central Coast. The spills usually occurred in winter, …
October 15, 2013
CSI La Brea: Tiny traces reveal big secrets of the tar pits
The La Brea tar pits in the middle of Los Angeles are known for turning up spectacularly preserved specimens of dire wolves, saber-tooth cats and …
October 15, 2013
Caspian Sea: Negotiation Support System
To supplement their efforts at modeling the Caspian conflict using game theory and, potentially, to aid the five littoral countries as they …
October 15, 2013
Gaming the system in the Caspian Sea: Can game theory solve a decades-old dispute?
Water-rights disputes are never easy. Whether they are over pumping from aquifers shared among adjacent landowners, allocation of resources at …