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News articles about "Sediments"

Scientists discover new variability in iron supply to the oceans with climate implications

Oceans
The supply of dissolved iron to oceans around continental shelves has been found to be more variable by region than previously believed with implications for future climate prediction Iron is key to the removal of ... - Read More

Compound Discovered at Sea Shows Potency against Anthrax

Released 7 17 2013 4 35 PM EDTSource Newsroom University of California San Diego more news from this source Jul 18 2013 A team led by William Fenical at Scripps Institution of Oceanography at UC ... - Read More

'Cold snap' 116 million years ago triggered marine ecosystem crisis

Ecosystem, Ecosystem, marine, Marine
A cold snap 116 million years ago triggered a similar marine ecosystem crisis to the ones witnessed in the past as a result of global warming according to research published in Nature Geoscience The international ... - Read More

Global cooling as significant as global warming, study of marine ecosystems during Cretaceous period shows

Ecosystems
A cold snap 116 million years ago triggered a similar marine ecosystem crisis to the ones witnessed in the past as a result of global warming according to research published in Nature Geoscience The international ... - Read More

Deep biosphere harbors active, growing communities of microorganisms

Microorganisms, Biosphere
The deep biosphere the realm of sediments far below the seafloor harbors a vast ecosystem of bacteria archaea and fungi that are actively metabolizing proliferating and moving according a new study by scientists at Woods ... - Read More

Life underground: Microbes active far beneath seafloor

Microbes are living more than 500 feet beneath the seafloor in 5 million year old sediment according to new findings by researchers at the University of Delaware and Woods Hole Oceanographic Institution WHOI Genetic material ... - Read More

Leakage of carbon from land to rivers, lakes, estuaries and coastal regions revealed

Carbon, carbon
When carbon is emitted by human activities into the atmosphere it is generally thought that about half remains in the atmosphere and the remainder is stored in the oceans and on land New research suggests ... - Read More

Acceleration of ocean denitrification during deglaciation documented

As ice sheets melted during the deglaciation of the last ice age and global oceans warmed oceanic oxygen levels decreased and denitrification accelerated by 30 to 120 percent a new international study shows creating oxygen ... - Read More

Disappearance of stromatolites, earliest visible manifestation of life: Ancient enigma solved?

Structure, Structure
The widespread disappearance of stromatolites the earliest visible manifestation of life on Earth may have been driven by single celled organisms called foraminifera The findings by scientists at Woods Hole Oceanographic Institution WHOI Massachusetts Institute ... - Read More

Scientists find possible solution to an ancient enigma

Solution
The widespread disappearance of stromatolites the earliest visible manifestation of life on Earth may have been driven by single celled organisms called foraminifera The findings by scientists at Woods Hole Oceanographic Institution WHOI Massachusetts Institute ... - Read More

Geochemist aids development of geologic time scale for study of Earth's history

Time
A Boise State University researcher has taken a lead role in developing the most current timetable on Earth's geologic history Geochemist Mark Schmitz is one of four editors on The Geologic Time Scale 2012 or ... - Read More

The Black Sea is a goldmine of ancient genetic data

sea
When Woods Hole Oceanographic Institution WHOI marine paleoecologist Marco Coolen was mining through vast amounts of genetic data from the Black Sea sediment record he was amazed about the variety of past plankton species that ... - Read More

Lake found in Sierra Nevada with the oldest remains of atmospheric contamination in Southern Europe

Atmospheric
A team of scientists find in the Laguna de Rio Seco lagoon at an altitude of 3 020 m evidence of atmospheric pollution caused by lead and linked to metallurgical activities from 3 900 years ... - Read More

Rethinking early atmospheric oxygen: Possibility of more dynamic biological oxygen cycle on early Earth than previously supposed

Oxygen, Oxygen, oxygen
A research team of biogeochemists at the University of California Riverside has provided a new view on the relationship between the earliest accumulation of oxygen in the atmosphere arguably the most important biological event in ... - Read More

Gulf of Mexico Has Greater-Than-Believed Ability to Self-Cleanse Oil Spills

The Gulf of Mexico may have a much greater natural ability to self clean oil spills than previously believed an expert in bioremediation said here today at the 245th National Meeting & amp Exposition of ... - Read More

A comet, not an asteroid, may have killed the dinosaurs, experts propose

Earth, earth
In a geological moment about 66 million years ago something killed off almost all the dinosaurs and some 70 percent of all other species living on Earth Only those dinosaurs related to birds appear to ... - Read More

How microbes survive at bare minimum: Archaea eat protein

Protein, Protein, protein
Beneath the ocean floor is a desolate place with no oxygen and sunlight Yet microbes have thrived in this environment for millions of years Share This See Also Global Warming Geochemistry Microorganism Prokaryote Humus Eukaryote ... - Read More

Carbon cycle: Four cells turn seabed microbiology upside down

Carbon, carbon, cells, cells
Single celled archaea are invisible to the naked eye and even when using a microscope great care must be taken to observe them An international team of researchers led by the Center for Geomicrobiology Aarhus ... - Read More

Huge and widespread volcanic eruptions triggered the end-Triassic extinction

Earth, earth
More than 200 million years ago a massive extinction decimated 76 percent of marine and terrestrial species marking the end of the Triassic period and the onset of the Jurassic This devastating event cleared the ... - Read More

Oxygen-poor 'boring' ocean challenged evolution of early life

Ocean, Ocean
A research team led by biogeochemists at the University of California Riverside has filled in a billion year gap in our understanding of conditions in the early ocean during a critical time in the history ... - Read More
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