Search Results for: ocean

David L. Rodland, a Ph.D. student in Virginia Tech’s Department of Geological Sciences, has been studying encrustation, or the colonization of seashells by other marine organisms that live permanently attached to hard surfaces.

Examples of encrusting organisms (or epibionts) include serpulid and spirorbid worms, bryozoans, barnacles, and algae. Many epibionts produce their own calcareous tubes, shells, or skeletons, which are attached to that surface and may become fossilized along wit

An international team of marine geologists has just completed an expedition to an area off the coast of Surinam known as the Demerara Rise. The scientists were part of the two-month Leg 207 of the NSF-supported Ocean Drilling Program (ODP) expedition in the equatorial Atlantic Ocean. The project studied periods in Earth’s history that have undergone rapid climate and ocean circulation changes and likely led to mass extinctions of plants and animals.

Three decades ago, geologists found s

A sensor system that can autonomously, continuously and in real-time monitor streams, lakes, ocean bays and other bodies of liquid may help solve problems for environmentalists, manufacturers and those in charge of homeland security, according to Penn State engineers.

“The importance of developing a network sensor technology for operation in liquid environments has recently been highlighted in reports detailing the chemical slurry of antibiotics, estrogen-type hormones, insecticides, nicotin

Teeming with heat-loving microbes, samples of fluid drawn from the crustal rocks that make up most of the Earth’s seafloor are providing the best evidence yet to support the controversial assertion that life is widespread within oceanic crust, according to H. Paul Johnson, a University of Washington oceanographer. Johnson is lead author of a report being published March 25 in the American Geophysical Union’s publication Eos about a National Science Foundation-funded expedition he led last s

Breakthrough could help resolve serious problems in oceanography and climate research

Scientists at Johns Hopkins University and the University of California-Irvine have finally been able to field-test theories about how wind transfers energy to ocean waves, a topic of debate since the 19th century that had previously proved impossible to settle experimentally.

The new results may help lead the way to the resolution of a longstanding problem in scientists’ understanding

Between 24 and 26 February, a number of trial flights into Dakar using the EGNOS (European Global Navigation Overlay Service) Test Bed system were carried out to show how the planned provision of Global Navigation Satellite System (GNSS) services over Central Africa could be implemented.

ASECNA (Agence pour la sécurité de la navigation aérienne en ASECNA (Agence pour la SECurité de la Navigation Aérienne en Afrique et à Madagascar) has worked with the European Space Agency, the European Com