Thursday, August 20, 2009

Geology.com | News - August 20, 2009

Volcanic Eruption Types

Posted: 19 Aug 2009 10:55 PM PDT

Jessica Ball has authored an article on the types of volcanic eruptions. It has descriptions and photos of Hawaiian, Strombolian, Vulcanian, Plinian, Surtseyan and lava dome eruptions. Check it out!

Pterosaur Runways

Posted: 19 Aug 2009 07:43 PM PDT

A flat of fine-grained limestone found in France has what are thought to be 140-million-year-old landing tracks of pterosaurs. This runway might provide interesting information about how these creatures flew, landed and walked.

Hurricane Bill is “Extremely Dangerous”

Posted: 19 Aug 2009 05:55 PM PDT

CNN has a report on Hurricane Bill in which they call the category storm “extremely dangerous”. The storm is moving northward in the http://geology.com/news/category/atlantic.shtml and is expected to cause swells and dangerous currents along the east cost of the United States.

Caribbean Artifacts in Underwater Cave

Posted: 19 Aug 2009 11:35 AM PDT

The Padre Nuestro cave in the Dominican Republic is the site of some new prehistoric finds. Some fossils, along with basalt and limestone artifacts, were found in the underwater Caribbean cave.

Provenance of Geoscience Students

Posted: 19 Aug 2009 11:05 AM PDT

A new AGI Geoscience Currents looks at the provenance of geoscience students in university geoscience departments. Do those departments attract students from the same geographic locations as other departments at their institution or are they attracted from a different geography?

Monitoring Volcanoes with Robots

Posted: 19 Aug 2009 10:23 AM PDT

Jessia Ball has a blog post that explains how spider-like robots can be used to safely monitor dangerous volcanoes. The spiders are equipped with instruments that collect data and transmitters to send the data to scientists working at safe locations.

Satellite Image: Claudette, Bill, Ana

Posted: 19 Aug 2009 10:14 AM PDT

A new weather satellite (NASA/NOAA geostationary weather satellite GOES-14) has captured a full disk image of earth showing Tropical Storms Claudette, Hurricane Bill and Tropical Storm Ana.

Mega Earthquakes Beneath Seattle

Posted: 19 Aug 2009 09:58 AM PDT

An article on the Physorg.com website explains why some scientists believe that a mega-quake of 9.0 or higher magnitude could occur beneath Seattle, causing lots of damage and generating a tsunami that could cause damage around the Pacific Basin.

Forest Service and Climate Change

Posted: 19 Aug 2009 09:40 AM PDT

Agriculture Secretary Tom Vilsack summarized his vision for the Forest Service in a speech given in Seattle. In it he speaks about forests and climate change. Carbon, bioenergy, fire, disease, and insects all have ties to climate change. Related: Forests as Carbon Dioxide Storage Units.

Hurricane Bill at Category 4

Posted: 19 Aug 2009 09:07 AM PDT

Hurricane Bill has strengthened to a Category 4 storm as it passes north of the Leeward Islands. The projected path of the storm (as of noon today) is shown on the map below from NOAA’s National Hurricane Center.