Large-scale forces shape local ocean life, global study shows
...graphic samples taken of invertebrates clinging to rock walls in every corner of the world. For examp...nimals were studied in one habitat: flat, vertical rock walls, such as ones found along reefs, in fjords, or in other parts of coastline. Witman said the ch...Are museum collections of ancient life representative?
...cuts and analyzing the resulting boxes of dirt and rock is time consuming and expensive. Also, many promising sites are being covered with human developments or preserved from potential erosion with large boulders or rip rap. But are museum collections representative of what is found in nature? Maybe the ...Hurricane Ivan helps student study sinkholes
...s generally form over limestone and dolomite. That rock dissolves and the earth on the surface subsides. Water from the sinkhole either seeps into the subsurface or runs in through a fissure or cave opening and rapidly enters the aquifer. "People up and down the Shenandoah Valley get their water from aqu...People cause more soil erosion than all natural processes
...lkinson said. He used existing data on sedimentary rock distributions and abundances to calculate rates of natural erosion. "If you ask how fast erosion takes place over geologic time---say over the last 500 million years---on average, you get about 60 feet every million years," Wilkinson said. In those...Four new vertebrate fossil finds in Ischigualasto, Argentina
...te, known as "Valley of the Moon" for its dramatic rock formations, is one of the few places in the world where one can find a fossil record of the entire Triassic Period, when both the first mammals and first dinosaurs appeared. "Earthwatch volunteers have played a fundamental role in our expeditions," ...Ancient marine invasion sheds light on diversity
...al United States was situated on the equator. The rock deposits indicate that the temperatures were increasing on a regional scale, just prior to a significant interval of global cooling. "We want to see how changes in the environment and temperature can affect the distribution of species," says Patzkow...Ancient creature fossilized by the bacteria that ate it
...t of the ground, exposing layers of brown volcanic rock with a bold ribbon of tan limestone snaking in-bet...entists could see arthropod fossils exposed in the rock as they gathered their samples, it wasnt until they returned to Ohio and put the limestone under a s...U. of Colorado research team discovers life in Rock Glacier
...has discovered evidence of microbial activity in a rock glacier high above tree line in the Rocky Mountain...eredith Knauf. Rock glaciers are large masses of rock debris interspersed with ice in the high mountains of temperate areas. Moving at speeds of just inc...Research team discovers first evidence of microbes living in a rock glacier
...ave discovered evidence of microbial activity in a rock glacier high above tree line in the Rocky Mountain...rancisco, Calif. Rock glaciers are large masses of rock debris interspersed with ice in the high mountains of temperate areas. Moving at speeds of just inc...Latest census finds more American pika populations disappear as climate warms
...or winter use in characteristic 'haypiles' above a rock in talus areas....The giant eagle of Middle Earth
...he Hokioi of Maori oral history and is recorded in rock art, and artifacts shaped from eagle bone prove that the eagle co-existed with early Polynesians. However, there is no evidence that humans were targets for this huge aerial predator. In the research paper, New Zealand researchers at Oxford Univ...Pinatubo's rivers show the danger isn't over when volcanic eruption ends
...ge waves of mud made up of water, ash and volcanic rock careening down the mountainsides, often burying e...posited nearly 1.5 cubic miles of volcanic ash and rock on its flanks, about 10 times more than Mount St. Helens in Washington state deposited in its erupti...Queen's discovery sheds new light on ancient temperatures
...veral different levels in what were believed to be rock formations deposited in shallow, warm oceans during the interval between two ice ages that extended all the way to the equator millions of years ago. But ikaite forms in shallow water on the sea bottom at cold temperatures and melts when brought to t...AGI publishes 10th edition of GeoRef Thesaurus
... lists of systematic (including minerals, fossils, rock types), geographic and economic terms. The new terms represent names and concepts frequently encountered by GeoRef indexers since the last edition of the Thesaurus. Some of these terms also relate to political changes and to the activities of the Oce...UCLA researchers detail the evolution of quantum dot imaging in the journal Science
...lly, because they are nanocrystals tiny pieces of rock one-billionth of a meter in size qdots provide good contrast for imaging with an electron microscope. Based on recent advances in UCLA laboratories, researchers hope that qdots might be used one day as a one-two punch to both diagnose and treat canc...Six research units given the go-ahead
...heir effects on biochemical cycles of elements and rock formation. From the findings of this research, the scientists hope to gain insights into the evolution of the biogeosphere. Further information Further information on Research Units is available online at: http://www.dfg.de/en/research_funding/coor......he date of human skulls found in Ethiopia's Kibish rock formation in 1967 back from 130,000 years to a new...uranium-238 to thorium-238 in oyster shells from a rock layer near the skulls. Fleagle says no scientist has been bold enough to suggest Omo II is anythin...Muon opportunists: Detecting the unseen with natural probes
...re meter per minute, pass through large amounts of rock or metal with ease, yet their charge makes them ea... shape and look for interior channels where molten rock may be rising, an early sign of a potential eruption. The research team has studied several volcano...Hydrogen and methane provide raw energy for life at 'Lost City'
... chemical reaction between seawater and the mantle rock on which Lost City sits. The resulting fluids are ...xist because there are so many other places mantle rock has been thrust up through the seafloor, exposing it to seawater and serpentinization. Even more suc...Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...s, such as auklets, that nest in boulder piles and rock crevices. According to Byrd, surface nesters and burrow nesters tended to disappear completely from islands with foxes, while populations of crevice nesters were reduced but not eliminated. Ledge nesters such as murres and kittiwakes, which nest on s...