Quantcast
Last updated on April 23, 2014 at 16:09 EDT

Latest Geochronology Stories

Greenland Ice Core Research Points To Higher Seas, Warmer Past
2013-01-24 11:07:31

Brett Smith for redOrbit.com - Your Universe Online New research findings based on Greenland ice cores show that if climate change patterns repeat themselves, the Earth will become much warmer and sea levels will rise significantly. In a new report published in the latest edition of the journal Nature, scientists have used Greenland ice cores over 1.5 miles long to collect data on the Eemian period, around 115 to 130 thousand years ago. An analysis of the cores allowed the international...

Significant Technological Milestones Reached By Trio of Complex Antarctic Science Projects
2012-12-21 13:38:46

National Science Foundation Drilling-related breakthroughs funded by NSF expected to advance "frontier science" in a variety of disciplines Three very large-scale, National Science Foundation-funded Antarctic science projects--investigating scientifically significant subjects as varied as life in extreme ecosystems, the fate of one of the world's largest ice sheets and the nature of abrupt global climate-change events--have recently each reached important technological milestones that...

Earth's Magnetic Field And Maori Stones
2012-12-09 06:12:00

April Flowers for redOrbit.com - Your Universe Online The Maori of New Zealand have been cooking in earth ovens, called hangi or umu, since at least the 1200s. These ovens are fire pits, scooped out of the ground. A fire is built and large volcanic stones are laid over the fire. When the fire burns down, the food is wrapped in leaves, placed in baskets and laid on the rocks with wet fern fronds. A layer of earth is scraped over the food, sealing in the heat and steam. The stones inside...

2012-10-19 16:58:40

Annual strata in the Japanese Lake Suigetsu enable a more accurate calibration of radiocarbon datings By using a new series of measurements of radiocarbon dates on seasonally laminated sediments from Lake Suigetsu in Japan, a more precise calibration of radiocarbon dating will be possible. In combination with an accurate count of the seasonal layered deposits in the lake, the study resulted in an unprecedented precision of the known 14C method with which it is now possible to date older...

Radio Carbon Dating Improved With Sediment Measurementss
2012-10-19 13:02:37

April Flowers for redOrbit.com - Your Universe Online A research team from Oxford University's Radiocarbon Accelerator Unit has found a more accurate benchmark for dating materials, especially for older objects, from a series of radiocarbon measurements from Japan's Lake Suigetsu. As far back as 1993, researchers realized sediment cores from Lake Suigetsu would be useful for radiocarbon dating. However, the initial efforts encountered technical problems. The current team extracted...

Ice Core Lab Brings The Arctic To Denver Year Round
2012-10-02 05:01:20

[ Watch the Video: National Ice Core Lab Stores Valuable Ancient Ice ] Lee Rannals for redOrbit.com - Your Universe Online While temperatures across the country start to cool in accordance to the changing of seasons, there is one place in Denver, Colorado where it stays cool all year round. Colorado experienced record highs this summer, but the National Ice Core Laboratory (NICL) was one place in the state that stayed well below hot, at minus 10 degrees Fahrenheit. The...

2012-09-04 10:21:43

WASHINGTON, Sept. 4, 2012 /PRNewswire-USNewswire/ -- The public is invited to a free lecture being held on Sept. 12 at the Library of Congress, Washington about NASA Scientist Lora Koenig's research at Earth's poles in extreme conditions. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) The Antarctic and Greenland ice sheets contain 99 percent of the Earth's fresh-water ice, according to Koenig, a physical scientist at NASA's Goddard Space Flight Center, Greenbelt, Md. "Changes...

Ice Cores Analysis Shows Warming And CO2 Are Closely Related
2012-07-25 08:28:23

Brett Smith for redOrbit.com - Your Universe Online Scientists have always linked the increase of atmospheric carbon dioxide to a rise in global temperatures, but new research by an international team of scientists connects the cause and effect more strongly than ever before. According to their report recently published in the scientific journal Climate of the Past, the research team tested tiny bubbles of air trapped in layers of ice around Antarctica for carbon dioxide levels and...

Tree Rings Tell The Tale Of Drought History
2012-07-03 11:58:11

Pitt scientists also discover unexpected complexity to the US West's patterns of drought during the Middle Ages Through an exploration of tree rings and oxygen isotopes, researchers at the University of Pittsburgh are now able to better pinpoint the history of droughts in the arid and semiarid areas of the American West. A paper published in the online July 2 issue of the Proceedings of the National Academy of Sciences explores the Medieval Climate Anomaly, a particularly warm period...

Ancient Antarctica Was A Completely Different Place
2012-06-18 04:13:26

A new university-led study with NASA participation finds ancient Antarctica was much warmer and wetter than previously suspected. The climate was suitable to support substantial vegetation -- including stunted trees -- along the edges of the frozen continent. The team of scientists involved in the study, published online June 17 in Nature Geoscience, was led by Sarah J. Feakins of the University of Southern California in Los Angeles, and included researchers from NASA's Jet Propulsion...


Latest Geochronology Reference Libraries

Tenontosaurus
2013-01-29 09:53:30

Image Caption: Head of Tenontosaurus, Institut de paléontologie humaine, Paris, France. Credit: Rémih/Wikipedia (CC BY-SA 3.0) Tenontosaurus, meaning “sinew lizard”, is a genus of medium to large sized ornithopod dinosaur. The genus is known from the late Aptian to Albian ages of the middle Cretaceious period sediments of western North America, dating roughly between 115 to 108 million years ago. It was formerly thought to be a ‘hypsilophodont’, but since Hypsilophodontia is no...

Sharpirhynchia sharpi
2014-01-12 00:00:00

Sharpirhynchia sharpi is a species of extinct brachiopod named after fossil collector Samuel Sharp (1814-1882). This species lived during the Lower Bathonian of the Middle Jurassic Period. It is found only in the United Kingdom, and numerous specimens have been taken from several sites, the first from Limekiln Quarry in Northampton, England. S. sharpi is roughly a half-inch long, with a slender beak and 21 to 31 ribs fanning out from the hinge. This lampshell brachiopod lived life as a...

794px-Sauroposeidon_protheles_1
2012-03-21 22:48:02

Sauroposeidon, meaning “earthquake god lizard,” is a genus of sauropods dinosaur from the Aptian and Albian ages of the Early Cretaceous Period (110 million years ago). It was discovered in the southeast region of Atoka County, Oklahoma, not far from the border of Texas, in a claystone outcrop. The fossils were initially misidentified as pieces of petrified wood when they were found in 1994. A more detailed analysis in 1999 revealed they were truly dinosaurian bones. They were formally...

0_13e03c979de918ad3bf95cb5bde79152
2011-01-03 18:03:01

Qiaowanlong is a genus of sauropod dinosaur from the Albian stage of the Early Cretaceous Period (100 million years ago). It was discovered in the Yujinzi Basin of Gansu, China in 2007. It came from the geological formation called the Xinminpu Group. Qiaowanlong is known from articulated cervical (neck) vertebrae and a right pelvic girdle, as well as several unidentified bone fragments. It was the first brachiosaurid to have been found from China. Qiaowanlong is estimated to have been...

0_5c6e9eeba97c306c5fb67de29a192816
2011-01-03 17:56:44

Qantassaurus is a genus of ornithopod dinosaur from the late Aptian to early Albian age of the Early Cretaceous Period (115 million years ago). It lived in Australia when the continent was still south of the Antarctic Circle, and was still part of the supercontinent Gondwana. Qantassaurus was discovered in 1996 during the third annual field season of the Dinosaur Dreaming Project, a dig jointly run by Monash University and Museum Victoria. It was found in the intertidal site known as Flat...

More Articles (11 articles) »