Tag: "geologic" at biology news
Six-Year Drilling Project to Uncover One Million Years of Earth History
...sts will drill as much as a million years into the geologic
history of the Earth to study the evolution of Hawaii's Mauna Kea volcano, under a grant awarded by the National Science Foundation. The $10.3 million, six-year Hawaii Scientific Drilling Program will be administered by the Hawaii Institute o...
Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms
.... West Antarctica's swift ice streams lie above a geologic
rift -- an area where the earth's crust is pulling apart, possibly with profound effects on the ice streams' behavior, and hence on the ice sheet's overall stability. An aerogeophysical survey headed by Donald Blankenship of the University of Texas ...
AAAS Honors Three USGS Scientists As Fellows
....edu . Moore is being honored posthumously for his geologic
and geographic research.Moore had a distinguished career in astrogeology and was involved in selectingthe landing site for the Mars Pathfinder. Moore died suddenly in September 1998,three days after being elected an AAAS fellow. The American Associat...
"Doctor Watershed" Named AAAS Fellow
...r in Fort Collins, Colo., is being honored for his geologic
and hydrologic research. His research relates to watershed and ecological resources management, particularly in protected landscapes such as national parks. He is also being recognized for leadership in communicating the importance and results of wat...
New Dating Technique May Revise Geologic Time Scale
...rmine the age of sedimentary rocks could refinethe geologic
time scale and provide new insight into global sea...three bulk samples previouslyused to construct the geologic
time scale. The individual grains yielded agesscattered over millions of years and almost all of the...
Reduced Nutrients Still Cause Problems In The Neuse And Tar-Pamlico Rivers
...sources, the report presents evidence that natural geologic
sources of phosphorus increase the problem in these two basins. Based on analysis of ground-water and stream samples from areas throughout the Coastal Plain, ground water that empties into streams in some parts of the basins contains high concentrati...
New Fossil Discoveries Clinch Ancient Age Of Human Ancestor
...ould not firmly establish the age of the youngest geologic
layer associated with these fossils because the best dating technique, the 40 Argon/39 Argon method, needs crystals and this particular layer is mostly powdery ash," Walker explains. "Since then--after much sifting through the ashes--we have man...
Tiny Jamaican Tree Crab Made Big And Fast Evolutionary Leap, Scientists Discover
...ense because it corresponds to a time in Jamaica's geologic
history when theland had risen far enough out of the sea to provide new ecological niches forthe ancestral marine crab that began evolving strategies for living entirely onthe land," he explains. The scientists also determined how closely each of t...
Minuscule Ocean Plants Help Stabilize Earth's Atmosphere, Climate
...rview. "These cycles havestayed within bounds over geologic
history, though they have never beenconstant. Earth has always been getting colder or warmer. The climate is alwayschanging, so it's out of steady state. "But it stays within bounds, and that's an unusual system," Barberadded. "Phytoplankton ...
University Of Cincinnati Geologists Analyzes Evolutionary Impact Of Mass Extinctions
...iversification trends a smooth,gradual change over geologic
time. "The global pattern does not match any localized pattern," said Miller. "Theglobal diversity trend ismisleading for what it says about the rates of transition and perhaps even forwhat causes them." Miller's research is supported by NASA's Pro...
USGS Finds Fungus To Be A Cause Of Fish Lesions In Chesapeake
...tographic analysis, helps to modify hydrologic and geologic
models of the Baysystem, and works to improve the understanding of living resources in the Bay. As the nation's largest water, earth and biological science and civilian mappingagency, the USGS works in cooperation with more than 2000 organizati...
Ancient Antarctic Environment Rocked By Volcanic Eruptions
...tain samplesthat would illustrate the climatic and geologic
history of Antarctica during thelast 100 million years. Drilling this year had reached a depth of approximately110 meters below the seafloor when this unexpected evidence of volcanic activitywas encountered. The evidence consists of layers o...
Exotic Species, Migratory Birds, Sea Level Rise, Wetlands, And Contaminants...USGS Scientists Discuss Innovative Chesapeake Bay Restoration Studies
...tional in scope and ranges from remote sensing and geologic
mapping of wetlands to studies of coastal erosion and evidence of older shorelines in the geologic
record. In the Chesapeake region, the effort is focused on reconstructing the detailed pattern of re...
National Laboratory, National Parks And Forests Leaders Seek To Share Resources
...ment System tocatalog and map the microbes and the geologic
characteristics of YellowstoneNational Park's many...ents for aid. He said, "INEEL can possibly provide geologic
support, and wecan learn about underground modeling from them. We can learn new methods ofreducing p...
Surface water not always the answer to Bangladesh arsenic pollution problem
...urface water arseniclevels and to explore possible geologic
and geochemical reasons for varyingarsenic levels ... notedRojstaczer. "Perhaps there are geologic
and geochemical reasons why one well had lowarsenic levels, and if we can exploit those reasons, per...
Evolutionary genetic tools trace cancer clone lines
...late in successivegenerations of normal cells over geologic
time. This is where Tavare, the Georgeand Louise Kawamoto Chair In Biological Sciences and professor of mathematicsin USC's college of letters, arts & sciences, had learned to analyze them tostudy the history of species. As the universal informatio...
USGS assesses nation's biological resources at century end
...cific Islands. Each regional chapter describes the geologic
and climatic changes thatformed the region and the recent history of settlement; describes theecosystems in the region; provides status and trends of populations; andidentifies information gaps. The final chapter of Part Two, produced by the Nation...
African dust called a major factor affecting southeast U.S. air quality
...f African dust. He says it has been occurring on a geologic
timescale, giving the example that soil composition in Bermuda is consistent withAfrican dust sources and shows little evidence of North American inputs. The EPA's PM (for particulate matter) standard is based on the totalmass of particles me...
New UNC-CH study explains variations in onset of ice ages
...rresponds to colder temperatures. That the geologic
record shows ice ages occur every 80,000 to 120,000years has confounded researchers who felt such astronomically controlled eventsshould occur on a more precise schedule, Rial says. Some suggested it waschanges in the plane of the earth's orbit rathe...
New screening method identifies areas susceptible to Selenium contamination in
Western United States
...r of the report. "The method that wedeveloped uses geologic
and climatic features that are characteristic ofalready-known selenium problem areas in the West. "By putting those features into a geographic information system, orGIS," Seiler said, "we created a map of areas where irrigationactivities are likely t...
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