Taxonomy term

july 2014

Shifting winds blow away Taupo's 'Ultraplinian' title

The eruption of New Zealand’s Taupo volcano about 1,800 years ago is the stuff of legends. With an ash plume estimated to have reached an astounding height of 50 kilometers — substantially higher than any other known eruption — Taupo was once thought to justify its own volcanic explosivity category: Ultraplinian. But new research looking at the effects of changing wind patterns on the eruptive deposits left by Taupo may lead scientists to downgrade the event to Plinian, effectively making the term Ultraplinian obsolete.
 

01 Jul 2014

Where on Earth? - July 2014

Clues for July 2014:

1. This roughly 10-meter-wide-by-13-meter-high window carved into ocean-side cliffs is found in a National Scenic Area on the Atlantic coast of an island archipelago known for its eponymous sheepdogs and located about 180 kilometers north of its host country.

Creationism comes to the county fair

Although better known for “best cow” awards, silly games and deep-fried foods on sticks, county fairs have proved good places for creationists to reach captive audiences. How can scientists counter this county fair push with messages of their own?

30 Jun 2014

San Andreas Fault shook Bay Area three times in a century

During the April 18, 1906, magnitude-7.9 earthquake near San Francisco, Calif., 470 kilometers of the San Andreas Fault ruptured between San Juan Bautista, south of San Francisco, and Point Arena, north of the city.

27 Jun 2014

Dinosaur feathers burst into color

Bright coloration likely emerged in dinosaurs right after the evolution of feathers, according to a new study in Nature. And the burst of color may have been more than an aesthetic change, researchers say: It may have readied feathered dinosaurs for flight.

26 Jun 2014

Arctic megafauna thrived on pollen-poor plants

Ancient changes in vegetation have traditionally been studied based on fossil pollen; however, this record tends to be biased toward plants that produce lots of pollen, such as grasses, reeds and sedges. Now, researchers have sequenced plant DNA retrieved from radiocarbon-dated permafrost samples and gained further insight into the Arctic plant communities not readily identifiable by pollen analysis.
 

24 Jun 2014

Rosetta: Off to decipher a comet's secrets

“Hello World.”

With that brief message, scientists at the European Space Agency (ESA) and followers around the world sent up a collective cheer. Rosetta — the ESA spacecraft currently on a 10-year mission to orbit and land on a comet — awoke in January after a three-year hibernation, and was ready to work.

23 Jun 2014

Geologic Column: Beyond geology, field camps teach teamwork and inspire leadership

For undergraduate geology students, field camp is a rite of passage. And the importance of the experience, in terms of properly training and preparing geoscience students to become geoscience professionals, should not be underestimated. 

23 Jun 2014

Cryptic creatures made for a spectacular hanging garden

Researchers studying an outcrop of Middle Devonian-aged carbonate rock in the Hamar Laghdad area of Morocco have found the remains of a community of submarine cave-roof-dwelling corals, crinoids, cnidarians and sponges that, while living, would have constituted a “spectacular hanging garden.”

22 Jun 2014

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