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Geotimes February 2006 Megan Sever |
Carving on Glacial Time A new technique for calculating the rate in which glaciers and rivers erode the landscape is shedding light on the timing of these glacial processes.  |
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.  |
Geotimes November 2007 Carolyn Gramling |
How Does Your Continent Grow? Data from ancient mantle rocks are helping to shore up the hypothesis that the continental crust was extracted in pulses, during periodic large melting events in the mantle.  |
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.  |
Chemistry World July 21, 2010 James Urquhart |
Volatile elements locked in moon rock Samples of a mineral present on the Moon and on Earth have been found to contain almost the same concentrations of hydrogen, chlorine and sulfur, adding weight to questions over how the Moon formed and evolved.  |
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.  |
Chemistry World February 26, 2014 Emma Stoye |
Yellowstone spews out ancient helium Researchers have found that huge amounts of helium are being released through steam plumes in the US's Yellowstone National Park, having been stored in the Earth's crust for billions of years.  |
Chemistry World January 28, 2010 Rebecca Renner |
US helium strategy threatens supply The US should change the way it sells helium from its huge federal stockpile to remove its influence over the world market and avert national shortages of the material.  |
Chemistry World October 20, 2015 Emma Stoye |
Ancient graphite may push start of life back by 300 million years Life on earth may have begun millions of years earlier than previously thought, claim researchers who have measured the carbon isotopes of graphite preserved in a 4.1 billion-year-old mineral.  |
Chemistry World September 1, 2014 Jennifer Newton |
Wendy Brown: Space dust chemistry Professor Wendy Brown's research reproduces the cold and low pressures of space to model chemical reactions that occur when particles are brought together on interstellar dust grains.  |
Geotimes March 2007 Kathryn Hansen |
Mineral Crumbles Under Nuclear Heat When it comes to storing nuclear waste, it turns out that zircon can't take the heat. A new, high-resolution look at the mineral -- previously thought to be a model material for storing nuclear waste -- reveals that it is quick to succumb to radiation damage.  |
Wired March 24, 2008 |
Three Smart Things You Should Know About Helium Some unknown facts about this second periodic element.  |
Chemistry World May 30, 2013 Mark Peplow |
Helium reserves under pressure Helium is an essential element in modern chemistry. Now the fate of one of the world's main sources of the gas hangs in the balance and the global helium market faces a period of turbulence that could send prices soaring.  |
Geotimes April 2005 David B. Williams |
Mass Extinction, Massive Problem The great debate continues over the Great Dying -- the largest of all mass extinctions, which occurred 250 million years ago. The latest round of research casts doubt on an extraterrestrial impact as the cause of the extinction event.  |