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Geotimes May 2006 Megan Sever |
Yellowstone's Moving Magma New research is suggesting that magma located below the Norris Geyser Basin in Yellowstone National Park periodically rises close to the surface, heating the geothermal field, before diving back down.  |
Geotimes October 2004 Naomi Lubick |
Traveling on Mars Over the past nine months, Mars' twin rovers have delivered amazing photographs and data to Earth, and now the first published science findings have appeared.  |
Chemistry World July 9, 2008 Lewis Brindley |
Water found in Moon rocks US researchers have found water in rocks from the Moon - prompting new questions about its origin.  |
Geotimes July 2004 Megan Sever |
Volcanic Avalanches New research suggests that shallow groundwater systems on volcanoes could explain deep edifice collapses.  |
Geotimes January 2004 Megan Sever |
Unraveling the Chicxulub Case On the Yucatan Peninsula in Mexico, geologists are drilling one of Earth's three largest impact structures, hoping to reveal clues about a devastating event linked to the extinction of the dinosaurs 65 million years ago.  |
Geotimes March 2005 Sara Pratt |
Rocky Debate Over Early Life Scientists fail to replicate a 1996 study on 3.85-billion-year-old rocks that pushed back the date of the earliest evidence for life on Earth by several hundred million years.  |
Geotimes November 2003 Sara Pratt |
Tracing the Navajo sandstone The thick Navajo sandstone in Zion National Park is one of the largest wind-deposited formations in the geologic record. Geologists have devised a new way to determine the origin of such sedimentary rocks.  |
Chemistry World May 28, 2014 Ian Randall |
Earth's earliest continent formed like Iceland The Earth's first continents may have formed in a geological setting similar to modern-day Iceland, according to the geochemical analysis of a newly discovered rock unit from Canada.  |
Geotimes January 2004 C. Wylie Poag |
Coring the Chesapeake Bay Impact Crater An extraterrestrial impact 36 million years ago left a lasting impression in the Chesapeake Bay and continues to affect the region's environment today.  |
Geotimes July 2003 Greg Peterson |
Cooling Mali's volcanism Geologists have recently found data to overturn the long-held belief that active volcanism was to blame for underground fires in Mali and substantially reduce the calculated risk for the region. The authors found the spontaneous combustion of buried peat layers, not magma.  |
Geotimes January 2006 Megan Sever |
Sizing up a Crater New modeling of the impact of an Eocene extraterrestrial projectile in what is now the Chesapeake Bay shows that it was smaller than previously thought, and could help better predict the effects of future potential impacts.  |
Geotimes September 2006 Kathryn Hansen |
Opportunity Reaches Martian Crater Cameras aboard NASA's Mars rover Opportunity captured the vast expanse of Victoria crater.  |
Geotimes July 2004 Sara Pratt |
Core Compositions Scientists are working to explain the differences in composition between Earth and Mars.  |
Geotimes December 2006 Carolyn Gramling |
Gold Mine Deposited Rapidly For those with gold fever, there's good news. One of the world's largest gold deposits may have been deposited in the geologic blink of an eye -- within only 55,000 years.  |
Geotimes November 2006 Kathryn Hansen |
Crystals Heat up Volcanic Eruptions Key pressure and temperature information preserved inside tiny bubbles in lava is causing scientists to rethink previous assumptions about how magma behaves, and what might trigger eruptions.  |
Geotimes June 2007 Hansen & Gramling |
Are Volcanoes Picky Eaters? New measurements of the concentrations of elements within magma suggest a volcano's food may be a complex recipe -- and that what kind of magma a volcano prefers may affect its physical features, including the size to which it can grow, according to new research  |
Chemistry World May 24, 2012 Jon Evans |
Can magma crystals predict eruptions? Mineral crystals blasted out from volcanoes can provide a window into the powerful processes going on inside those volcanoes, say UK and German earth scientists.  |
Geotimes May 2005 Megan Sever |
Meteor Crater's Slow Impact New findings suggest that rather than one large meteorite striking the ground at a high velocity, a lower velocity, pancake-shaped swarm of meteorite pieces -- formed from the explosion a larger meteorite -- likely carved out Meteor Crater.  |
Chemistry World May 27, 2011 Simon Hadlington |
Getting to grips with volcanic ash As the disruption to air travel caused by the eruption of the Grimsvotn volcano in Iceland subsides, researchers are taking a close look at volcanic ash to try to understand how hazardous it is to both aircraft engines and human health.  |
Geotimes August 2004 Megan Sever |
Tahoe quakes: business as usual? Scientists say they have figured out what caused two major events that shook the Sierra Nevada region in recent months.  |
Geotimes November 2007 Kathryn Watts |
Yellowstone and Heise: Supervolcanoes That Lighten Up Beneath Yellowstone, and driving many of its beloved features such as the geyser Old Faithful, lies a churning chamber of magma that has erupted before and may erupt again.  |
Geotimes October 2006 Carolyn Gramling |
Flexing Plates Produce Volcanoes There's a new kind of volcano in town, according to a new study.  |
High on Adventure April 2008 Vicki Andersen |
Creation of the cascade mountains The 700-mile stretch of playground known as the Cascade Mountain range is comprised of more than a dozen major peaks.  |
Geotimes July 2003 Allen Glazner |
Igneous Petrology Much effort in igneous petrology over the past year centered on using microanalytical methods to study big problems. Ever-improving analytical techniques are allowing precise measurement of elemental abundances and isotopic ratios on ever-smaller phases in rocks.  |