Tag: "eruptions" at biology news
April GEOLOGY and GSA TODAY media highlights
...a 99775-7320, USA. Pages 347-350. Large explosive eruptions
of thousands of cubic kilometers of magma represen...inants in groundwater and possible future volcanic eruptions
at the site. This paper addresses the volcanic risks of the Yucca Mountain site. The region is still...
January media highlights-GSA Bulletin
...ly diverse calc-alkaline volcanic eruptions. These eruptions
are similar to magmatism associated with east-west extension in the inland northwest from British Columbia to Nevada from the Eocene to the present. Control of internal structure and fluid-migration pathways within the Barbados Ridge dcollement zon...
Global warming more common than thought, deep-sea drilling off Japan now demonstrates
...g bursts may have been triggered by large volcanic eruptions
or submarine landslides that released carbon dioxide and methane, both greenhouse gases, he said. Besides reducing the oceans oxygen-carrying capacity, warming also increased the waters corrosive characteristics and dissolved shells of surface-dwelli...
Mass extinction at the Triassic-Jurassic boundary
...nd the release of CO2 or SO2 aerosols during these eruptions
are thought to have caused intense global warming (from the former) or cooling (from the latter). But Tanner's new data on the isotopic composition of fossil soils of Late Triassic and Early Jurassic age demonstrates that there is no evidence of any...
Scientists share multidisciplinary discoveries at 'Earth System Processes'
... between mass extinction events and large volcanic eruptions
is complex and likely involves climate forcing factors other than the eruption itself, including the presence of life forms (e.g., phytoplankton) that collectively possess the ability to buffer the global climate from short-term perturbations. Geerat...
International scientists probe unsolved puzzles of the Earth and beyond at "Earth System Processes"
...rent favorite theory to explain this event is that eruptions
of flood basalts that constituted the Central Atlantic Magmatic Province released CO2 or SO2 aerosols. This, in turn, caused intense global warming (from the former) or cooling (the latter). New data on the isotopic composition of fossil soils of La...
Coping with natural disasters along the Pacific Rim
...s are routinely subjected to earthquakes, volcanic eruptions
and tsunamis - the inevitable consequence of powerful tectonic forces constantly shaping the region. For example, major earthquakes regularly occur along California`s San Andreas fault - a giant fracture in the Earth that marks the boundary between ...
2000 FALL MEETING: updated press conferences, press registration, and other information
...December 15 3:00 PM Climatic impacts of volcanic eruptions
Large scale volcanic eruptions
may be Earth's most likely natural global catastrophe, due to their inevitability and effect on clim...
June 'Geology' and 'GSA Today' highlights
...ndslides from the island may be more frequent, and eruptions
from active Kilauea volcano may become much more frequent and more voluminous in future centuries. Lithium isotope evidence for light element decoupling in the Panama subarc mantle Paul B. Tomascak et al., p. 507 What happens to pieces of th...
Biological legacies a key of ecological rebirth after Mount St. Helens eruption
...mple, del Moral has studied plant succession after eruptions
in Japan and the Russian Far East. This summer he'll work at Kamchatka in Russia and next spring plans work at Mount Etna in Sicily. Franklin is collaborating with researchers as far away as Australia who are trying to help managers use ideas about...
Fall Meeting: updated press conferences and special events
...researchers to deduce the climatic effect of great eruptions
of past centuries and predict the effects of futur...will focus on cooperative observations of volcanic eruptions
on Io from various Galileo instruments and from Earth. (This press conference will consist of new r...
New books view storms, the stratosphere, and more
...ial oscillation, in 1960; the influence ofvolcanic eruptions
in 1970; the ozone hole in 1984; and the influence ofthe 11-year solar cycle in 1987. The book describes the connectionsbetween these phenomena and their relationship to variability in theclimate system. The influence of humans on the stratosphere, s...
Discovery of new bird species in China, oldest beak shows evolution complexity
...ctus now have been found in thesame area, volcanic eruptions
likely killed them along the lakeshoreinstantaneously and froze them in time, Feduccia said. The new species was anunexpected but pleasant surprise. "This bird was more advanced than Archaeopteryx in that it had a beakbut was less advanced in...
Bones of Crocodile-like Beasts Tell Tale of Global Warming
...f the volcanicactivity didn't resemble spectacular eruptions
like Mt. Pinatubo. Instead, theeruptions were "bas... world, it was an unusually active time, with many eruptions
occurring at thesame time. It's very reasonable to suggest that so much CO2 was dumped into theatmos...
Ancient Antarctic Environment Rocked By Volcanic Eruptions
The first evidence of large volcanic eruptions
that shook Antarcticaaround 25 million years ago h...ing evidence of enormousvolcanic eruptions. These eruptions
are believed to have significantly alteredglobal temperatures at the time. "The discovery of...
Long Lava Flows May Have Taken Years, Causing Global Cooling And Extinctions
...re. These tubes may play a role in future volcanic eruptions
bycarrying large amounts of lava to distant populated areas, as they have in thepast....
UC Geologist "Flip-Flops" On Understanding Of Crinoid Life Style
...e can explain that pattern. Numerous majorvolcanic eruptions
are well documented throughout the Cretaceous,and modern-day crinoids have a well documented response tostress. They fold up their arms like an umbrella. If Uintacrinusreacted the same way, the organisms would suddenly lose theirbuoyancy and go sinki...
A Phoenix From A Ring Of Fire Is A Pattern For The Recovery Of Mount St. Helens
...al, cyclical regeneration, says Edwards. Although eruptions
are viewed as cataclysmic events, they have happened many times before, and "to plants and insects around the ring of fire, it's just one more eruption to cope with."...
Six-Year Drilling Project to Uncover One Million Years of Earth History
... findings of interest are that: The frequency of eruptions
from Mauna Loa, a younger volcano arising from the slopes of Mauna Kea, has slowed from peak activity 500,000 years ago. Mauna Kea has subsided (settled) by more than 3,400 feet during the last 400,000 years, and the surface area of Mauna Loa is shr...