Tag: "crust" at biology news

New hydrothermal vents discovered as 'South Pacific Odyssey' research begins

.... "Because of the unusual properties of the ocean crust in the Lau Basin, we can expect to discover new sp...zone (the Tonga Trench) where one plate of Earth's crust dips beneath another one. The Lau Basin opens up a "window" into the deep Earth below, revealing th...

'Anti-plume' found off Pacific Coast

...hers think the seafloor spreading caused the ocean crust to dilate, increasing the pore space much like a sponge. "It's like an anti-plume," he said. "Instead of sending materials from within the Earth to the ocean floor, it simply sucks down the surrounding seawater." The researchers aren't sure exactly ...

Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say

...diments. Over time, great slabs of oceanic crust were pulled down, or subducted, into the Earth's mantle. The carbon that was locked into this crust was essentially lost, tied up for the 60 million years or so that it took the minerals to get recycl...

Physics tip sheet #41 - April 5, 2004

... Metals Research in Stuttgart. Because the earth's crust is primarily composed of silicon dioxide, the discovery may be important for understanding the motions of glaciers, the stability of permafrost, and other phenomena involving contact between ice and earth. The researchers discovered the high density ...

A world ruled by fungi

...ith fallout of iridium, an element rare in Earth's crust but which abounds in asteroids. -We have managed to reconstruct the event month by month, with a very high time resolution, says Vivi Vajda. During a very short period - from between a few months to a couple of years the fungi and other saprophytes ...

Is this what killed the dinosaurs?

... within the earth's mantle, the region between the crust and the core of the earth. This theory, already supported by a significant body of geologists and palaeontologists, is strengthened by new evidence to be presented at an international conference at Cardiff University on 11-12 September. Research by a...

Science Picks--Leads, Feeds and Story Seeds (April 2003)

...to measure the up and down movement of the Earth's crust at an unprecedented level of accuracy. Under ideal conditions, it is possible to measure changes in elevation on the order of 0.2 to 0.4 inches over areas of hundreds of square miles. What's cool to scientists about InSAR is that it doesn't need equi...

15-foot hypodermic needles provide evidence for vast oceanic crustal biosphere

...etrate the volcanic rocks that make up the Earth's crust were among the novel devices used to collect samp...is argues, although it doesn't prove, that oceanic crust may be a microbial incubator of global proportions," he says. Scientists still haven't sampled wide...

Sex, flounder and donuts

...r squeezed out by syneresis through a more compact crust may be the trigger that formed the rings. Geologic conditions associated with retreating glaciers and processes like syneresis caused the lower sediment layer to become mobile and the overlying sediments to collapse. Wattrus hopes that by studying th...

Researchers working to devise plan for Palo Alto Battlefield Restoration

...can't be re-established by seed. "The saline soils crust over. It's a tough environment for seed," Whisenant said. But it can be done by transplanting stems. Margo said current experiments involving both till and no-till planting methods in different seasons have been attempted. The second component of t...

Research finds life 1000 feet beneath ocean floor

...y in the journal Science. In 3.5 million-year-old crust almost 1,000 feet beneath the bottom of the ocean,...of this difficult-to-reach location in the Earth's crust and the life forms that live in it," said Michael Rappe, a research associate at OSU. "Until now we ...

January GSA BULLETIN media highlights

... has developed by horizontal shortening of Earth's crust as the South American and Nazca plates converge up... is enough to explain the present thickness of the crust in the Andes. Our analysis of sediments that were shed off of the rising Andes between ca. 65 millio...

January GEOLOGY and GSA TODAY media highlights

... assessments of magma storage and movements in the crust prior to eruption using mineralogical pressure ind...a is generated and transported through continental crust and how these processes affect the chemical and mechanical evolution of the lithosphere are some of ...

Revolutionary new theory for origins of life on Earth

...equence of convection currents through the earth's crust and in principle, this could happen on any wet, ro...des and carbon monoxide - emerged from the earth's crust at the ocean floor, it reacted inside the tiny metal sulphide cavities. They provided the right mic...

GSA release 02-55: Dec. Geology & GSA Today media highlights

...uch less friction across it, at the expense of the crust surrounding the fault, which would be more deformed. Models indicate that this mode is a lower energy state than a single, simple fault. GSA TODAY Slow crawl across the salinity divide: Delayed colonization of freshwater ecosystems by invertebrate...

November GEOLOGY and GSA TODAY media highlights

...ncorporated into the subducted Baltica continental crust and infiltrated by subduction fluids with a predominant C-O-H composition. During ongoing subduction, reduction of the infiltrating fluids occurred, resulting in precipitation of carbonates and/or free carbon. When the subducted peridotite lens, now ...

Is there a link between soy formula and attention deficit disorder?

...n of ADHD in infants." Manganese is in the Earth's crust and is found in nearly all cereals and grains, including soy. It is a mineral important for enabling cells to obtain energy. High doses of industrial exposure have been known to produce a syndrome called "manganism," marked by tremors similar to Park...

Scientists confirm age of the oldest meteorite collision on Earth

...acks or tectonic plates that riddle the Earth's crust today. "In South Africa, two of the younger layers 3.2 to 3.3 billion years old coincide with major tectonic changes," he observed. "How come? Maybe those impacts were large enough to affect tectonic systems to affect the dynamics of the Earth's ...

A thermodynamic history traces temperature's effect on Universe, Earth and humans

...vels at how scattered radioactivity in the Earth's crust has essentially given rise to creatures sophisticated enough to ponder radioactivity. "The radioactive alpha particle decay of a few kinds of nuclei heats the Earth's crust, which convectively creates fire just below the surface," he writes. "Forc...

Frozen 'lake' beneath Antarctica ideal to test sterile drilling techniques

...rever people have looked, from deep in the Earth's crust to high-altitude clouds, and he thinks they also reside deep inside glacial ice. In fact, he will present a poster on life in solid ice at the Bioastronomy 2002 meeting in Australia during the week of July 8. Such creatures would not live in ice crys...

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