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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. |
Geotimes September 2005 Sara Pratt |
Sourcing Ultradeep Diamonds Mineral impurities in a diamond may decrease the gem's value for jewelers, but for geologists they can prove to be priceless: South African diamonds containing garnet have recently provided evidence that very deep diamonds can form from surface materials. |
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 July 3, 2015 Ida Emilie Steinmark |
Iron found in ancient rock is recycled from bacteria Isotopic analysis suggests that some of the iron within rock formations was processed by bacteria 2.5 billion years ago |
Geotimes January 2004 Naomi Lubick |
Cooked minerals resemble life A laboratory experiment has given rise to tiny filaments that mimic structures found in ancient rocks identified as microfossils. The findings cast further doubt over whether the oldest known microfossils found in the 3.5-billion-year-old Warrawoona Group in Australia were indeed produced by living organisms, with implications for the search for early life on Earth and elsewhere. |
Chemistry World November 10, 2010 Mike Brown |
Sulfur story unearths oxygen environment Earth's atmosphere could have supported complex life 400 million years earlier than thought, according to sulfur isotope signatures found in some of the oldest rocks on Earth. |
Geotimes April 2005 Peter A. Scholle |
Geologic Etiquette in a Mechanized Era Geologists should exercise more considerate choices regarding the rocks they destroy for science. |
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. |
Chemistry World July 22, 2011 David Bradley |
Cracking diamonds reveals continental origins An analysis of the mineral inclusions in diamonds dredged up by eruptions from deep within the Earth has allowed scientists to get a handle on when the process of plate tectonics began. |
Geotimes February 2004 Sara Pratt |
Fire cooks rock clocks A new field study has confirmed what models had previously predicted: The intense heat of wildfires can reset the helium "clock" in rocks, making them appear younger than they are. |
Geotimes April 2004 |
Early volcanic living? Microbes thrive in unexpected places, including seafloor hotspots, where energy and nutrients from hydrothermal vents or volcanic activity make life easy. |
Geotimes October 2005 Lisa M. Pinsker |
Feuding Over the Origins of Fossil Fuels The so-called inorganic or abiogenic oil idea has been getting more attention lately. With oil more expensive than ever and many people citing future shortages, understanding the origins of petroleum is increasingly relevant. |
Geotimes April 2005 Sara Pratt |
Space Dust and Snowball Earth Within the spiral arms of the Milky Way galaxy are thousands of giant clouds of dust. Some researchers now say that these clouds collide with Earth every 140 million years, possibly explaining the causes of two distinct periods of widespread glaciation in the planet's geologic past. |
Chemistry World June 19, 2013 Jaco Baas |
Earth materials: introduction to mineralogy and petrology This book by Cornelis Klein and Anthony Philpotts promises a comprehensive text on mineralogy and petrology for single-semester university courses in geology, earth science and environmental science. |
Geotimes September 2004 Sarah Todd Davidson |
The Center of it All: Visiting Central Park New York's Central Park presents a treasure trove of important geologic information. |
Smithsonian December 2006 Cate Lineberry |
Diamonds Unearthed In the first installment of a multi-part series, Smithsonian diamond expert Jeffrey Post, curator of the National Gem and Mineral Collection, explains how the rare crystals form. |
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 November 2005 Kathryn Hansen |
Earthly Origin for Desert Formation The Richat Structure in the Maur Adrar Desert is frequently photographed from space. The formation resembles an impact crater, but researchers now say that the famous feature may be the result of magma fluids dissolving sedimentary rocks about 100 million years ago. |
Chemistry World January 14, 2014 Ian Randall |
Early start for plate tectonics Subduction of the Earth's crust -- and modern-day plate tectonics -- may have begun as early as the Hadean Eon, 4.4 billion years ago, according to a new study led by researchers from Australia. |
Geotimes May 2004 Naomi Lubick |
Mineral-Making Microbes For the first time, researchers have found direct evidence that microbes can create templates for unique mineral growth. The discovery could inspire new avenues for materials research, as well as for the search for evidence of life on Earth and other planets. |
Geotimes October 2006 Megan Sever |
Giving Carbon a Deep-Sea Burial While many people are calling for an immediate reduction in carbon dioxide emissions, others are looking toward ways to dispose of the excess carbon dioxide. Burying the gas in sediments below the ocean could be a potential solution |
Geotimes December 2003 Sara Pratt |
Super-hard graphite Compressed graphite does not become diamond, but instead becomes a "super-hard" form of graphite. The new material has many potential industrial applications, for example as a structural component or perhaps for use in high-pressure scientific instruments. |
Geotimes November 2004 Megan Sever |
Monitoring Aboriginal Rock Art Over the past 30 years, this remote region in Australia, once home only to Aboriginal tribes and wallabies, has become increasingly industrialized, leading to worries about possible acceleration of weathering and deterioration of the rock art. |
Geotimes September 2007 Nicole Branan |
Understanding the Crust Beneath Iran The most recent continent-continent collision on Earth began about 10 to 20 million years ago when the Arabian Plate slammed into Eurasia in what is modern-day Iran. An international team of researchers has brought to light an important piece of this ancient history. |
Geotimes March 2004 Megan Sever |
Wisconsin crater revealed In 1942, mappers doing reconnaissance work first noticed an anomalous geologic structure in western Wisconsin. Now geologists have determined that the feature is a 430- to 445-million-year-old meteorite impact structure. |
Geotimes October 2004 Katie Donnelly |
Petrology and Politics This scientist is preparing for her upcoming work in Washington, D.C., as the 2004-2005 Congressional Science Fellow for the American Geological Institute. |
Reactive Reports Issue 62 |
Take the Volcanic Fast-track to Nanotube Production Igneous rock from the Mount Etna volcanic eruptions could be used to mass produce carbon nanotubes, according to researchers. |
Chemistry World August 5, 2010 Phillip Broadwith |
Dry Moon discovery Was there water on the Moon when it first formed? US geochemists say the distribution of chlorine isotopes in lunar rocks suggest not, or at least not as much as other recent studies have proposed |
Geotimes September 2006 Lisa Rossbacher |
Big Lonesome Mountain What makes Gros Morne National Park so special is that its stories match the experience each visitor brings. The more geology you know, the more you will see and the richer the visit will be, but the geology meets all visitors at their own level. |
Chemistry World December 3, 2010 Emma Shiells |
No stone left unturned in oil hunt Polymer coated nanoparticles could be used to detect unrecovered oil in mature oil fields, say US scientists. |
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. |
Scientific American July 2008 Christina Reed |
Chemical Fossils Preserved in Lava Reveal Remains of Ancient Sea Life Searching for microfossils inside igneous rocks. |
Geotimes June 2006 |
Geomedia On exhibit: Art from the Rocks... Books: Twilight of the Mammoths: Ice Age Extinctions and the Rewilding of America by Paul Martin... Pleistocene Ecology and Public Policy by Christopher L. Hill... etc. |
Chemistry World January 28, 2009 Nina Notman |
Iron helps oceans capture more carbon A team of international scientists studying the role of iron in the storage of carbon under the ocean have confirmed that natural iron fertilisation increases the rate of carbon capture. |
Geotimes March 2004 |
New language for geologic time The Stratigraphy Commission of the Geological Society of London (GSL) is calling for a drastic and controversial overhaul of the Stratigraphic Guide, the internationally agreed upon standards for the field of stratigraphy. |
Geotimes November 2003 Naomi Lubick |
Ed Roy: Thinking and teaching in Texas Throughout his academic career as professor of geology at Trinity University in San Antonio, Texas, Edward C. Roy Jr. has championed geology for elementary and high school students, as well as for undergraduates. |
Geotimes March 2003 |
Demonstrating Carbon Sequestration Estimates are that human activity emits 7 billion tons of carbon dioxide a year. One proposed method for reducing how much of the greenhouse gas ends up in the atmosphere is to store the carbon dioxide underground. Natural reservoirs of the gas exist, suggesting that it is feasible. |
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 March 2004 E-an Zen |
The Marriage of Geology and Philosophy This slim volume deals with the public role of earth science in contemporary society. What it has to say should concern not only public-minded earth scientists and those engaged in policy-making, but those who care about the relations between science and the humanities |
IEEE Spectrum January 2008 Sandra Upson |
Loser: Algae Bloom Climate-Change Scheme Doomed Planktos's ploy to combat global warming by sequestering carbon in the oceans holds no water. |
Geotimes March 2003 S. Julio Friedmann |
Storing Carbon in Earth Carbon sequestration is capturing carbon dioxide, either from the atmosphere or emission streams, and storing it in reservoirs, such as plants or soils. Carbon dioxide could be converted to solid chemicals or injected into the deep ocean. Though there are risks, the potential pay-off is enormous. |
Geotimes November 2005 Megan Sever |
New Appalachian Tale New research indicates that conventional thinking about the timing of the building of the Appalachian Mountains may be incorrect. |
Chemistry World November 2007 Simon Hadlington |
Solving an Ancient Puzzle Analytical chemistry is revolutionizing archaeological study - as well as igniting some controversy |
IndustryWeek August 1, 2005 John Teresko |
The History Of Nanotechnology Today's popular excitement about the concept of nanotechnology probably dates back to 1959. |
Chemistry World December 22, 2011 Laura Howes |
Artificial hips glide on graphite Metal-on metal hip replacements are lubricated by a layer of graphite, say scientists in the US. |
Geotimes November 2004 Joseph Richard Gutheinz |
In Search of the Goodwill Moon Rocks: A Personal Account This senior special agent with NASA's Office of Inspector General was to locate and stop the predators who feed on the elderly by selling them bogus moon rocks, often for the victim's life savings. |
Geotimes December 2004 Jay Chapman |
Carbon Dioxide Alchemy Some scientists are experimenting with a new form of alchemy, not looking to create a substance, but rather remove one: carbon dioxide. If their process works, it could reduce the effects of the greenhouse gas in the atmosphere. |
Geotimes July 2005 Megan Sever |
Carbon Leaching Out of Siberian Peat New research is showing that as temperatures rise across the Arctic, carbon once locked up in permafrost soils may begin escaping into the area's waterways. |
Geotimes August 2004 |
Geomedia Geologic Wonders... Book Reviews: Geology and Health: Closing the Gap... Desert Heat -- Volcanic Fire... The Winelands of Britain: Past, Present, and Prospective... Terroir: The Role of Geology, Climate, and Culture in the Making of French Wines... etc. |