geotimes august 2006

Geotimes

O n Aug. 1, 1971, astronauts David Scott and James Irwin were exploring the Apennine Mountains on the moon, a few kilometers from their Apollo 15 landing site. They weren't geologists, but they had received seven years of training from geologists, so they knew what kinds of rocks they would find on the moon.

Mineral resource of the month: Niobium (Columbium)

The metallic ore, which is processed to separate out niobium and the very valuable tantalum (see Geotimes, August 2004), is believed to be smuggled out and sold to help finance the armed conflicts. ... Brazil is the world's major niobium-ore-producing country, accounting for 93 percent of world production in 2006. Together, Brazil and Canada ...

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The second hydrological scenario, warmer temperatures and wetter hydrological conditions, assumes a 6 percent increase in hydropower production. Hydropower assumptions are based on a study of the Central Valley Project in California, conducted by the California Department of Water Resources in 2006.

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Sediment from the silty Yangtze is also likely to accumulate, clogging the dam and reducing its efficiency (see Geotimes, August 2003). "It's silting now, and that could continue a lot faster than projected," says Vaclav Smil, a professor of geography at the University of Manitoba in Canada, and an expert on Chinese energy and environment.

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A part of the Smithsonian Institution's Traveling Exhibition Service (SITES), the Wondrous Cold exhibit is based on a book of the same title by photographer Joan Myers, who spent October 2002 through January …

Geotimes — August 2004 — Making Wine in a …

Geotimes intern Visit Geomedia online for a review of The Winelands of Britain: Past, Present, and Prospective. Jones is a climatologist and associate professor in the Geography Department at Southern Oregon …

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August 18 Ecuadorian volcano erupts August 16 Travels in Geology: Ferrying through the Inside Passage August 7 BP halts North Slope oil pipeline July 31 Titanic methane mystery solved? Go to Geotimes' Web …

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Europasaurus holgeri, as scientists call the newly discovered dinosaur species, belongs to the group of four-legged, plant-eating sauropods, which are known for their colossal sizes and sweepingly long necks and tails. Included in that group is the well-known Brachiosaurus, one of the largest dinosaurs, measuring up to 25 meters (82 feet) long.

Geotimes

The earthquake's death toll was more than 80,000 people (see Geotimes, January 2006). Rescue workers search for survivors of a devastating landslide that buried a Philippine city in February. Photograph is courtesy of U.S. Marine Corps/Cpl. Justin Park. ... while in August, a mudslide caused by rainstorms in Nepal swallowed a village of ...

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September 2006

Other processes can lead to forms of cancer. Chromium in coal is generally present at 10 to 20 parts per million. All of this chromium is present in a benign form. However, when coal is burned in an oxygen-rich environment, as much as 50 percent of the chromium can be converted to a highly carcinogenic compound.

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Geotimes is now EARTH. Archives. Classifieds: Advertise: Customer Service: Geotimes Search : News Notes. Geomicrobiology Early life lines make waves. Life on Earth just got a little older. New evidence from an ancient rock formation in Australia is bolstering one side of a long-standing debate: that the earliest life on Earth helped shape ...

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Shellito is a professor of meteorology and climatology at the University of Northern Colorado in Greeley, whose research focuses on paleoclimate modeling. Email: [email protected]. Links: "From hot to cold in the Arctic," Geotimes, August 2006. "Methane Hydrate and Abrupt Climate Change," Geotimes, November 2004.

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Geotimes Search : News Notes. Science and Society Open access advancing. On May 2, exactly one year to the day after the National Institutes of Health (NIH) began to encourage their researchers to make their findings freely available online, U.S. Sens. Joseph Lieberman (D-Conn.) and John Cornyn (R-Texas) introduced a new bill to Congress. ...

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August 25 Hobbit was pygmy, scientists say August 18 Ecuadorian volcano erupts August 16 Travels in Geology: Ferrying through the Inside Passage August 7 BP halts North …

August 2004 — The Quest for Better Wine Using Geophysics

Geologist Susan Hubbard pulls a 900-megahertz ground penetrating radar (GPR) unit through the Robert Mondavi Winery in Napa Valley, Calif. GPR allows researchers to probe the soils below the surface and to determine the optimal conditions for growing wine grapes. Image courtesy of Susan Hubbard.

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Geotimes Search : Highlights 2006 Top climate news stories of 2006. A new public face for climate change Strong debate over storms Thawing ice shifts water cycles ... Even though 2006 brought a quiet Atlantic hurricane season, with only nine named storms through mid-November, the debate over whether or not global warming is causing more intense ...

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Geotimes Search : Comment. Oregon's Recipe for Mitigating Earthquakes Yumei Wang and William Burns. In Oregon, as in other places, many buildings were built before scientists had developed a basic understanding of the regional seismic hazards. Consequently, many critical facilities are dramatically under-designed by today's building ...

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The Office of the President, for example, has received public criticism for editing the content of scientific reports from executive branch agencies (see Geotimes, August 2005 and July 2004). Mostly, the administration is not changing or omitting data, but rather changing report phraseology, thus rendering results in a different light than cast ...

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Peat levels deep belowground can show relative sea-level changes over time — and thus sinking rates — because peat forms in coastal marshes when the land drops below sea level, Törnqvist and colleagues reported in the August Geology.

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With the mountain having lost 22 percent of its ice area between 2002 and 2006, "the glaciers on Kilimanjaro are dying," Thompson says. Arguing that precipitation rather than temperature is to blame is a "red herring," he says, as global warming affects both temperature and precipitation.

The Arctic Ocean: So Much We Still Don't Know

In one of the most fascinating studies using ACEX core materials, Appy Sluijs of Utrecht University in the Netherlands and colleagues reported in Nature in 2006 that just prior to the "Big Heat", or Paleocene-Eocene …

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At 663 kilometers long and with a capacity of nearly 40 billion cubic meters of water, the Three Gorges Dam's reservoir is one of the largest in the world (see Geotimes, August 2006). In June 2003, officials raised the reservoir's water level from 66 to 135 meters — roughly three-fourths of the full depth (175 meters) that it will reach ...

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In 2006, despite contrary predictions, none struck the mainland. The combined impacts of shifting climactic zones, sea-level rise and development means that there will be more variability in recurrence intervals of low-probability, high-impact events, so the usefulness of past experience for projecting future losses is limited, van der Vink says.

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Controversial Bosnian "pyramid" A tall, pyramid-shaped hill near the small town of Visoko in Bosnia is causing quite an international stir.

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If inertial homeothermy applied to dinosaurs, then large dinosaurs should have been significantly hotter than small dinosaurs, wrote James Gillooly, a physiological ecologist at the University of Florida in Gainesville, and colleagues in the August 2006 PLoS Biology. To find out if large dinosaurs were indeed hotter, the team turned to a ...

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Combined with recent evidence suggesting that oxygen may have been common earlier than previously thought — including traces of 2.5 billion-year-old oxygen-producing cyanobacteria (see Geotimes, August …

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Geotimes Search : News Notes. Geochemistry Microbes reshuffle Earth's early history. Some ancient microbes are reshuffling the chronology of life's early evolution on Earth. Not only are the organisms apparently hundreds of millions of years older than previously thought, but they also are challenging current understanding of climatic ...