Geologic History Current Events | Geologic History News
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Slip rate along the Lijiang-Ninglang fault zone estimated from repeating microearthquakes
The China Digital Seismic Network (CDSN) provides excellent opportunities to quantify the kinematics and characterize the dynamics of the active fault systems in China. view more (2008-12-22)
Plate tectonics may take a break
Plate tectonics, the geologic process responsible for creating the Earth's continents, mountain ranges, and ocean basins, may be an on-again, off-again affair. view more (2008-01-04)
UF study: Isthmus of Panama formed as result of plate tectonics
Contrary to previous evidence, a new University of Florida study shows the Isthmus of Panama was most likely formed by a Central American Peninsula colliding slowly with the South American continent through tectonic plate movement over millions of years. view more (2008-07-30)
New theory for mass extinctions
A new theory on just what causes Earth's worst mass extinctions may help settle the endless scientific dust-up on the matter. view more (2006-10-25)
Earth's Moving Crust May Occasionally Stop
The motion, formation, and recycling of Earth's crust-commonly known as plate tectonics-have long been thought to be continuous processes. But new research by geophysicists suggests that plate tectonic motions have occasionally stopped in Earth's geologic history, and may do so again. The findings could reshape our understanding of the history and... view more... (2008-01-10)
Discovery of the source of the most common meteorites
When observing with the GEMINI telescopes, two astronomers from Brazil and the United States discovered for the first time asteroids that are similar to "ordinary chondrites", the most common meteorites found on Earth. Until now, astronomers have failed to identify their asteroidal sources because of the various geologic processes that... view more... (2008-07-11)
Study Finds Plenty of Carbon Dioxide Storage Capacity Underground in Kentucky
As concern has grown over the effects of the human release of carbon dioxide (CO2) gas into the atmosphere, so too has research into technologies to manage CO2. view more (2006-10-09)
Kentucky Geological Survey involved in global climate change research
Researchers at the Kentucky Geological Survey are studying options to reduce the amount of carbon dioxide emitted into the atmosphere. Carbon dioxide is produced by the burning of coal, gasoline, and natural gas and has been linked to global warming. view more (2005-07-15)
Family history is a poor predictor of venous clotting
Family history of venous thromboembolism (blood clotting) is an unsatisfactory predictor for identifying common thrombophilic defects in women without thrombosis before taking oral contraceptives, finds a study in this week's BMJ. A total of 324 women (mean age 34 years) with no personal history of venous thromboembolism were screened for common... view more... (2001-04-24)
Volcanic Activity Shaped Mercury After All
Scientists have long anguished over how little is known about Mercury, the innermost of the four terrestrial planetary bodies in our solar system. view more (2008-07-07)
San Jacinto fault is younger than thought, rises in seismic importance
A detailed study of sedimentary rocks exposed along a portion of southern California's San Jacinto fault zone shows the fault to be no older than 1.1 million to 1.3 million years and that its long-term slip rate is probably faster than previously thought. view more (2006-10-24)
Ancient geologic escape hatches mistaken for tube worms
Tubeworms have been around for millions of years and the fossil record is rich with their distinctive imprints. But a discovery made by U of C scientists found that what previous researchers had labeled as tubeworms in a formation near Denver, Colorado, are actually 70 million-year-old escape hatches for methane. view more (2009-02-05)
Origins of Life
The origin of life lies in unique ocean reefs, and scientists from the University of Miami's Rosenstiel School of Marine & Atmospheric Science have developed an approach to help investigate them better. view more (2006-11-20)
Study Confirms Value Of Family-history Knowledge For Young Women With Breast Cancer (p 1101)
A UK study published as a research letter in this week's issue of THE LANCET highlights the importance of detailed family-history knowledge to help identify women with pathogenic gene mutations for breast cancer. Women who carry mutations of BRCA1 and/or BRCA2 genes have a much higher lifetime risk of breast cancer-up to 80%-compared with... view more... (2003-03-26)
Screening for bowel cancer must include general population, not just those at risk
If screening for bowel cancer is to get the go-ahead, it must include everyone, not just those with a family history, who are known to be at increased risk, reports research in the Journal of Medical Screening. The government is known to be considering setting up a nationwide screening programme for bowel cancer, and pilot studies are already... view more... (2001-06-29)
Further Evidence Linking Suicide Risk To Family History (p 1126)
A Danish study in this week's issue of THE LANCET provides further evidence linking a family history of psychiatric illness and suicide to increased suicide risk-the study also shows how a family history of suicide and psychiatric illness act independently and are not influenced by socio-economic factors. Previous research has highlighted a... view more... (2002-10-09)
Coeliac disease may predict schizophrenia
A history of coeliac disease (gluten intolerance) is a risk factor for developing schizophrenia, finds a study in this week's BMJ. Previous studies have suggested an association between these two disorders. Researchers identified 7,997 people older than 15 who were admitted to any Danish psychiatric unit for the first time between 1981 and 1998... view more... (2004-02-18)
New study closes in on geologic history of Earth's deep interior
By using a super-computer to virtually squeeze and heat iron-bearing minerals under conditions that would have existed when the Earth crystallized from an ocean of magma to its solid form 4.5 billion years ago, two UC Davis geochemists have produced the first picture of how different isotopes of iron were initially distributed in the solid Earth. view more (2009-06-16)
UNH-NOAA ocean mapping expedition yields new insights into arctic depths
New Arctic sea floor data released today by the University of New Hampshire and the National Oceanic and Atmospheric Administration suggests that the foot of the continental slope off Alaska is more than 100 nautical miles farther from the U.S. coast than previously assumed. view more (2008-02-12)
Night blindness may explain fear of the dark
Fear of the dark is a common complaint in children and is often attributed to attention seeking behaviour. Yet researchers in this week's BMJ suggest that it may be due to night blindness - a diagnosis which can be easily missed. They describe two children with an inherited form of stationary night blindness. Both were very frightened of the dark,... view more... (2003-01-22)
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