All Articles Tagged As: north america

Scientists Map Soils on an Extinct American Volcano (10/21/2008)

Thousands of years after the lava cooled, soil scientists conduct sophisticated mapping of the resulting soil landscape. ...> Full Article

Most Alaskan Glaciers Retreating, Thinning, and Stagnating (10/8/2008)

changes began as early as the middle of the 18th century ...> Full Article

Tech Student Helping with Advanced Exploration on Vast Ore Deposit (10/7/2008)

New geological research into development of the second largest gold and copper deposit in the world. ...> Full Article

Stalagmites May Predict Next Big One along the New Madrid Seismic Zone (9/26/2008)

Small white stalagmites lining caves in the Midwest may help scientists chronicle the history of the New Madrid Seismic Zone – and even predict when the next big earthquake may strike ...> Full Article

New Analysis of Earthquake Zone off Oregon Coast Raises Questions (8/27/2008)

Scientists have completed a new analysis of an earthquake fault line that extends some 200 miles off the southern and central Oregon coast that they say is more active than the San Andreas Fault in California. ...> Full Article

Earthquakes may endanger New York more than thought, says study (8/24/2008)

Indian Point nuclear power plant seen as particular risk ...> Full Article

A Single Boulder May Prove that Antarctica and North America Were Once Connected (7/18/2008)

A lone granite boulder found against all odds high atop a glacier in Antarctica may provide additional key evidence to support a theory that parts of the southernmost continent once were connected to North America hundreds of millions of years ago. ...> Full Article

Research team draws 150-meter ice core from McCall Glacier (7/12/2008)

A 150-meter ice core pulled from the McCall Glacier in the Arctic National Wildlife Refuge this summer may offer researchers their first quantitative look at up to two centuries of climate change in the region. ...> Full Article

Scientists Head to Warming Alaska on Ice Core Expedition (5/2/2008)

Scientists on the second leg of a multi-year mission to recover ice cores from glaciers in the Alaska wilderness ...> Full Article

On Shaky Ground: Geological Faults Threaten Houston (4/30/2008)

After finding more than 300 surface faults in Harris County, a University of Houston geologist now has information that could be vitally useful to the region's builders and city planners. ...> Full Article

Twenty years of the Alaska Volcano Observatory (4/28/2008)

Volcanologists keep track of 30 volcanoes in Alaska ...> Full Article

Earthquake in Illinois could portend an emerging threat (4/27/2008)

To the surprise of many, the earthquake on April 18, 2008, about 120 miles east of St. Louis, originated in the Wabash Valley Fault and not the better-known and more-dreaded New Madrid Fault in Missouri's bootheel. ...> Full Article

Mountains reached current elevation earlier than thought (4/24/2008)

Sierra Nevada rose to current height earlier than thought, geologists say ...> Full Article

New hazard estimates could downplay quake dangers (4/19/2008)

The dangers posed by a major earthquake in the New Madrid and Charleston, South Carolina zones in the Midwestern and Southern parts of the United States may be noticeably lower than current estimates if seismologists adjust one of the major assumptions that go into calculating seismic hazard ...> Full Article

Journey to the Center of the Earth: Discovery Sheds Light on Mantle Formation (4/13/2008)

Geologist unearths ancient rocks from ocean floor dating back two billion years ...> Full Article

Grand Canyon May Be As Old As Dinosaurs, According To New Geologic Dating Study (4/11/2008)

New geological evidence indicates the Grand Canyon may be so old that dinosaurs once lumbered along its rim ...> Full Article

Grant Enables Extensive Mapping of Idaho Geology (4/8/2008)

Thanks to a generous grant, researchers at the Idaho Geological Survey at the University of Idaho will be able to map the region, including earthquake-prone areas ...> Full Article

Possible link found between earthquakes along the Cascadia and San Andreas faults (4/4/2008)

Seismic activity on the southern Cascadia Subduction fault may have triggered major earthquakes along the northern San Andreas Fault ...> Full Article

American West Heating Nearly Twice As Fast As Rest Of World, New Analysis Shows (4/1/2008)

The American West is heating up more rapidly than the rest of the world, according to a new analysis of the most recent federal government temperature figures. The news is especially bad for some of the nation's fastest growing cities, which receive water from the drought-stricken Colorado River. The average temperature rise in the Southwest's largest river basin was more than double the average global increase, likely spelling even more parched conditions. ...> Full Article

This is not a drill: The earth actually is moving beneath western Washington (3/10/2008)

While the annual Sound Shake exercise on Wednesday produced a simulated magnitude 6.7 earthquake on the Seattle fault, a real though unfelt seismic event is taking place beneath western Washington. ...> Full Article

Researchers make geothermal discovery in Mineral County, Nevada (3/2/2008)

Researchers recently discovered the existence of direct evidence of an active geothermal system in the Teels Marsh area of Mineral County in rural Nevada. ...> Full Article

2007 third-lowest year on record for earthquake activity (2/20/2008)

The Nevada and eastern California region experienced one of its quietest years on record for earthquake activity, according to a study by the University's Nevada Seismological Laboratory. ...> Full Article

On the hunt for 'black gold' (2/19/2008)

The surprise discovery of university-owned rights to oil and natural gas in southern Alberta is leading to first-hand lessons in the energy sector for students and researchers who have begun exploring the potential of the reserves using some of the latest technology in exploration geology. ...> Full Article

Satellite map will aid in managing Alberta's vital resources (2/16/2008)

Every nook and cranny of the province, from its forests to its foothills, has for the first time been recorded on a unique map by the University of Alberta. ...> Full Article

Carbon study could help reduce harmful emissions (2/15/2008)

Earth scientists at The University of Manchester have found that carbon dioxide has been naturally stored for more than a million years in several gas fields in the Colorado Plateau and Rocky Mountains of the United States. ...> Full Article

Researchers Say Climate Change Could Produce Water Crisis in Western U.S. (2/4/2008)

Researchers in a new Science article published online warn that human-caused climate change has dramatically altered the water flow over the past 50 years in several Western states. ...> Full Article

Unconventional natural gas reservoir poised to dramatically increase U.S. production (1/20/2008)

Natural gas distributed throughout the Marcellus black shale in northern Appalachia could conservatively boost proven U.S. reserves by trillions of cubic feet if gas production companies employ horizontal drilling techniques, according to a Penn State and State University of New York, Fredonia, team. ...> Full Article

Alaska Glacier Speed-up Tied To Internal Plumbing Issues, Says Study (1/19/2008)

A University of Colorado at Boulder study indicates meltwater periodically overwhelms the interior drainpipes of Alaska's Kennicott Glacier and causes it to lurch forward, similar to processes that may help explain the acceleration of glaciers observed recently on the Greenland ice sheet that are contributing to global sea rise. ...> Full Article

Tapping into the Heat Beneath Our Feet (1/6/2008)

Virtually all of Canada's high-temperature geothermal resources are under B.C. In the next 15 years they can supply 30 per cent of our power needs with the cleanest form of energy known. ...> Full Article

Ancient Flood Disrupted Ocean Circulation And Triggered Climate Cooling (12/20/2007)

As the giant North American ice sheets melted an enormous pool of freshwater, many times larger than all of the Great Lakes, formed behind them. About 8400 years ago this pool of freshwater burst free and flooded the North Atlantic. About the same time, a sharp century long cold spell is observed around the North Atlantic and other areas. Researchers have often speculated that the cooling was the result of changes in ocean circulation triggered by this freshwater flood. The sudden addition of so much freshwater would have curtailed (suppressed) the sinking of deep water in the North Atlantic and as a consequence less warm water would be pulled north in the Gulf stream. ...> Full Article

Peat moves from the bog to the generating station (12/17/2007)

For hundreds of years, peat has been used in Ireland, Sweden, Finland, Estonia, Belarus and Russia as a fuel source for thermal generating stations. Now Peat Resources Ltd. is looking at replacing the coal that fuels the province's Atikokan Generating Station in northwestern Ontario with peat and wood. ...> Full Article

Microbes in oil reservoirs (12/16/2007)

Heavy oil discovery could revolutionize oil sands production ...> Full Article

Yellowstone Rising (11/9/2007)

Volcano Inflating with Molten Rock at Record Rate ...> Full Article