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News articles about "Sediments"

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

Highly effective communities of bacteria in the world's deepest oceanic trench

An international research team announces the first scientific results from one of the most inaccessible places on Earth the bottom of the Mariana Trench located nearly 11 kilometers below sea level in the western Pacific ... - Read More

Glaciers contribute significant iron to North Atlantic Ocean

Ocean, Ocean
All living organisms rely on iron as an essential nutrient In the ocean iron's abundance or scarcity means all the difference as it fuels the growth of plankton the base of the ocean's food web ... - Read More

What lies beneath: NASA Antarctic sub goes subglacial

NASA
When researcher Alberto Behar from NASA's Jet Propulsion Laboratory in Pasadena Calif joined an international Antarctic expedition last month on a trek to investigate a subglacial lake he brought with him a unique instrument designed ... - Read More

Researchers find new information about 'Snowball Earth' period

It is rather difficult to imagine but approximately 635 million years ago ice may have covered a vast portion of our planet in an event called Snowball Earth According to the Snowball Earth hypothesis the ... - Read More
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