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Tag: prehistoric
Fishing Trawler Hauls in Prehistoric Shark
2017-11-13 20:47:52| Extremetech
A fishing trawler has pulled up a fascinating example of a living fossil. Frill sharks are one of the earliest types of sharks and date back 80 million years. The post Fishing Trawler Hauls in Prehistoric Shark appeared first on ExtremeTech.
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shark
prehistoric
hauls
Analysis of Neanderthal teeth grooves uncovers evidence of prehistoric dentistry
2017-06-28 06:00:00| LifeSciencesWorld
[NEWS] LAWRENCE — Neanderthals treating toothaches? A discovery of multiple toothpick grooves on teeth and signs of other manipulations by a Neanderthal of 130,000 years ago are evidence of a kind of prehistoric dentistry, according to a new study led by a University of Kansas researcher. “As a package, this fits together as a dental problem that the Neanderthal was having and was trying to presumably treat itself, with the toothpick grooves, the breaks and also…
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evidence
teeth
grooves
Prehistoric climate changes still detectable deep underground
2015-05-28 19:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: It turns out that the steady dripping of water deep underground can reveal a surprising amount of information about the constantly changing cycles of heat and cold, precipitation and drought in the turbulent atmosphere above. As water seeps down through the ground it picks up minerals, most commonly calcium carbonate. When this mineral-rich water drips into caves, it leaves mineral deposits behind that form layers which grow during wet periods and form dusty skins when the water dries up. Today,...
Tags: deep
underground
climate
detectable
Deciphering clues to prehistoric climate changes locked in cave deposits
2015-05-24 21:02:00| Climate Ark Climate Change & Global Warming Newsfeed
ScienceDaily: When the conversation turns to the weather and the climate, most people's thoughts naturally drift upward toward the clouds, but Jessica Oster's sink down into the subterranean world of stalactites and stalagmites. That is because the assistant professor of earth and environmental sciences at Vanderbilt University is a member of a small group of earth scientists who are pioneering in the use of mineral cave deposits, collectively known as speleothems, as proxies for the prehistoric climate. It...
Tags: climate
locked
deposits
cave
Cave deposits record prehistoric climate
2015-05-24 19:19:00| Climate Ark Climate Change & Global Warming Newsfeed
RedOrbin: By studying mineral cave deposits known as speleothems, experts from Vanderbilt University, the Berkeley Geochronology Center in California, and elsewhere are learning more about what prehistoric climate was like and how it changed over the years. The research team, led by Vanderbilt assistant professor of earth and environmental sciences Jessica Oster, is analyzing the past five decades of growth of a stalagmite located in the Mawmluh Cave in the northeastern Indian state of Meghalaya, a region...
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climate
deposits
cave