Tag: "basalt" at biology news
Coming Extinction Of One Of UK's Most Minuscule Plants Yields Information On Climate Change
...specific ecological requirements and grows on open basalt
gravel terraces where there is little competition from other species. It is a small member of the Dock family with large specimens being 4 cms high with tiny greenish flowers about 3 mm across. Note for editors: Dr Meatyard is working with the fol...
Rock-Eating Microbes Could Signify Life On Mars
...SU and lead author on the study. Where the basalt
was glassy, having quickly been cooled by seawater...cal process. The glassy, outer inch of the basalt
is the only place evidence ofmicrobial activity was found. Fisk thinks the looser chemical structure...
Chemical Reaction Believed To Support Underground Microbes Is Now Unlikely
...rrect. Although hydrogen gas can be produced from basalt
under artificiallaboratory conditions, there is no...found that hydrogen could only be producedfrom the basalt
when the rock was exposed to acidic conditions -- butenvironments containing basalt
are never acidic...
Microbes in basalt thrive on mixed diet of toxic waste
...s proposed that metal oxides such as ironoxides in basalt
could help catalyze reductions with no help from l...ism was at work, Holman and her colleaguesobtained basalt
core samples beneath the site from the unsaturated rock abovethe water table. From these, Tamas Toro...
INEEL, universities collaborate on subsurface strontium-90 remediation efforts
...eral deposition. The researchers may use a slab of basalt
rockor other material as their coupon to transport their experiments to thesubsurface. Analyzing the potentially complicated mineral and coupon surfaces will beIngram's responsibility. At the INEEL, she currently studies ways to examinesurfaces whose...
New fossils may be first human ancestors out of Africa, say Science authors
...ical clues, from the isotope dates on the layer of basalt
rock running beneath the site, to the paleomagneti... in overlying deposits. Isotope analysis of the basalt
places the age of the site at around 1.77 million years old, but the paleomagnetic signature of the ...
Stowaways from space provide link between impact, biggest extinction in Earth history
...uption and the Siberian Traps, both known as flood basalt
volcanism, originated as a plume from the Earth's ... snuffed it out. "There has been lots of flood basalt
volcanism over time, and many impacts, but these impact events caused major extinctions. Both coinci...
Anthropologists find evidence of early humans in southern China cave
...e best type fortool-making. It is primarily chert, basalt
and limestone. The most accessible material is the limestone, but it is the poorest quality material. As a result, the prehistoric peoples probably chose other materials for tools--one of the reasons the bamboo tool hypothesis was proposed. "We beli...
New view of bacteria-mineral interface to advance bioremediation
...isely map mineral crystals and bacterial growth on basalt
using a customized laser imaging Fourier transform...-images showing the arrangement of minerals within basalt
and bacterial growth on the rock surface. Researchers need to better understand why some microbes a...
January media highlights-GSA Bulletin
...Washington 99164, USA. Pages 43-50. By correlating basalt
flows in east-central Oregon using field, major, a...earliest manifestation of the Columbia River flood basalt
province. Flood basalt
eruption started at 16.6 million years ago immediately above the calculated p...
April GEOLOGY and GSA TODAY media highlights
...last 10 million years in the area and eight alkali basalt
volcanoes ranging in age from approximately 1 million to 80,000 years have erupted within 50 km of the proposed repository. The way the probability of another eruption is calculated depends on whether this volcanism is episodic or not and the period ...
January GSA BULLETIN media highlights
...f flood-basalt volcanism generated ~230,500 km3 of basalt
over an interval of ~1.3 million years. This rapid...nsistent northward propagation of regional uplift, basalt
regression, and vent migration across the breadth of eastern Oregon and into southeastern Washington...
Research finds life 1000 feet beneath ocean floor
...obial life deep beneath the ocean floor in ancient basalt
that forms part of the Earth's crust, in research that once more expands the realm of seemingly hostile or remote environments in which living organisms can apparently thrive. The research was done off the coast of Oregon near a sea-floor spreading ...
Bacteria discoveries could resemble Mars, other planets
...sts discovered most of the deposits were fractured basalt
glass or hyaloclastites which are formed when lava flowed down the volcano and spilled into the ocean. "When we looked at some of these hyaloclastite units, we could see they had been altered and the changes were consistent with rock that has been...
Scientists report on the current state of INEEL's nuclear waste contamination
...traveled over 170 miles downward through fractured basalt
and unconsolidated sediments to the underlying Sna...er flow through fractures, which are common in the basalt
underlying the INEEL. Water recharge to the Snake River Aquifer and associated transport of contamin...