News tagged with sulfur
Rich Ore Deposits Linked to Ancient Atmosphere
Space & Earth / Earth Sciences
Nov 19, 2009 |
4.3 / 5 (3) |
0
(PhysOrg.com) -- Much of our planet's mineral wealth was deposited billions of years ago when Earth's chemical cycles were different from today's. Using geochemical clues from rocks nearly 3 billion years old, a group of ...
Previously Unknown Volcanic Eruption Helped Trigger Cold Decade
Space & Earth / Earth Sciences
Oct 29, 2009 |
4.3 / 5 (27) |
9
(PhysOrg.com) -- A team of chemists from the U.S. and France has found compelling evidence of a previously undocumented large volcanic eruption that occurred exactly 200 years ago, in 1809.
Biologists discover bacterial defense mechanism against aggressive oxygen
Nov 20, 2009 |
not rated yet |
0
Bacteria possess an ingenious mechanism for preventing oxygen from harming the building blocks of the cell. This is the new finding of a team of biologists that includes Joris Messens of VIB, a life sciences research institute ...
Ancient ecosystem thrives millions of years below Antarctic glacier
Space & Earth / Earth Sciences
Apr 16, 2009 |
4.7 / 5 (24) |
12
(PhysOrg.com) -- A reservoir of briny liquid buried deep beneath an Antarctic glacier supports hardy microbes that have lived in isolation for millions of years, researchers report this week in the journal ...
The rise of oxygen caused Earth's earliest ice age
Space & Earth / Earth Sciences
May 07, 2009 |
4.6 / 5 (20) |
6
(PhysOrg.com) -- Geologists may have uncovered the answer to an age-old question - an ice-age-old question, that is. It appears that Earth's earliest ice ages may have been due to the rise of oxygen in Earth's ...
Methane-eating microbes can use iron and manganese oxides to 'breathe'
Space & Earth / Earth Sciences
Jul 09, 2009 |
4.6 / 5 (5) |
0
Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers ...
Origins of sulfur in rocks tells early oxygen story
Space & Earth / Earth Sciences
Apr 16, 2009 |
4.5 / 5 (8) |
2
(PhysOrg.com) -- Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced ...
Panama butterfly migrations linked to El Nino, climate change
Oct 05, 2009 |
2.7 / 5 (3) |
0
A high-speed chase across the Panama Canal in a Boston Whaler may sound like the beginning of another James Bond film—but the protagonist of this story brandishes a butterfly net and studies the effects of ...
Scrubbing sulfur: New process removes sulfur components, CO2 from power plant emissions (w/ Video)
Aug 18, 2009 |
5 / 5 (4) |
1
The Department of Energy's Pacific Northwest National Laboratory has developed a reusable organic liquid that can pull harmful gases such as carbon dioxide or sulfur dioxide out of industrial emissions from ...
One sponge-like material, three different applications
May 17, 2009 |
4.1 / 5 (9) |
0
A new sponge-like material that is black, brittle and freeze-dried (just like the ice cream astronauts eat) can pull off some pretty impressive feats. Designed by Northwestern University chemists, it can remove mercury from ...
Scientists eye glowing volcano crater in Hawaii
Space & Earth / Earth Sciences
Jun 07, 2009 |
4.2 / 5 (11) |
2
(AP) -- The summit of Hawaii's Kilauea volcano is glowing brightly as molten lava swirls 300 feet below its crater's floor, bubbling near the surface after years of spewing from the volcano's side.
Sudden Collapse in Ancient Biodiversity: Was Global Warming the Culprit?
Space & Earth / Earth Sciences
Jun 18, 2009 |
4.1 / 5 (17) |
5
Scientists have unearthed striking evidence for a sudden ancient collapse in plant biodiversity. A trove of 200 million-year-old fossil leaves collected in East Greenland tells the story, carrying its message ...
Biodiesel blend performs as well as ultra-low sulfur fuel
Jun 09, 2009 |
3 / 5 (2) |
0
Those worried about a performance drop-off going from standard diesel fuel to the more environmentally friendly B20 biodiesel blend can ease their minds.
Report examines hidden costs of energy production and use
Oct 19, 2009 |
2.5 / 5 (4) |
1
A new report from the National Research Council examines and, when possible, estimates "hidden" costs of energy production and use -- such as the damage air pollution imposes on human health -- that are not reflected in market ...
A healthy color: Testing for gum disease
Apr 10, 2009 |
5 / 5 (1) |
0
Researchers at Temple University Maurice H. Kornberg School of Dentistry found that a color-changing oral strip is as effective in detecting periodontal disease as traditional methods, and is easier and less costly to administer.
