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News articles about "Sediment"

Pesticides contaminate frogs from Californian national parks

Pesticides, Pesticides, Pesticides
Pesticides commonly used in California's Central Valley one of the world's most productive agricultural regions have been found in remote frog species miles from farmland Writing in Environmental Toxicology and Chemistry researchers demonstrate the contamination ... - Read More

Ancient ice melt unearthed in Antarctic mud: 20-meter sea level rise, five million years ago

sea, Ice
Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres scientists report today in the journal Nature Geoscience The ... - Read More

Ancient ice melt unearthed in Antarctic mud: 20 meter sea level rise, five million years ago

Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres scientists report today in the journal Nature Geoscience The ... - Read More

Researchers warn of legacy mercury in the environment

Environment, Mercury
Environmental researchers at Harvard University have published evidence that significant reductions in mercury emissions will be necessary just to stabilize current levels of the toxic element in the environment So much mercury persists in surface ... - 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

Study of oceans' past raises worries about their future

Oceans
The ocean the Titanic sailed through just over 100 years ago was very different from the one we swim in today Global warming is increasing ocean temperatures and harming marine food webs Nitrogen run off ... - 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

Martian clay contains chemical implicated in the origin of life, astrobiologists find

chemical, chemical, Chemical, Chemical
Researchers from the University of Hawaii at Manoa NASA Astrobiology Institute UHNAI have discovered high concentrations of boron in a Martian meteorite When present in its oxidized form borate boron may have played a key ... - Read More

Three-billion-year-old microfossils include plankton

Carbon, carbon
Spindle shaped inclusions in three billion year old rocks are microfossils of plankton that probably inhabited the oceans around the globe during that time according to an international team of researchers It is surprising to ... - Read More

Geochemistry survey at Chatham Rise reveals absence of modern day greenhouse gas emissions

Gas, Geochemistry, Emissions
Geochemistry analysis conducted by the U S Naval Research Laboratory of fossil sediment injection structures off the New Zealand coast in February and March reveal no presence of modern day expulsions of methane gas a ... - 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

Crystal-clear method for distinguishing between glass and fluids

Glass, Crystal
Many solids are produced from melting Depending on how quickly they cool off invariably internal tensile stresses begin to build up One example are Prince Rupert's Drops or Dutch tears you can hit their thick ... - Read More

Vast methane-based ecosystem uncovered

Methane, Methane, Ecosystem, Ecosystem
A marine research expedition sponsored by the U S Bureau of Ocean Energy Management BOEM and the National Oceanic and Atmospheric Administration NOAA has led to the discovery of perhaps the world's largest methane cold ... - Read More

Abundance and distribution of Hawaiian coral species predicted by model

marine, Marine
Researchers from the University of Hawaii Manoa UHM School of Ocean and Earth Science and Technology SOEST developed species distribution models of the six dominant Hawaiian coral species around the main Hawaiian Islands including two ... - Read More

Amazon River exhales virtually all carbon taken up by rainforest

Carbon, carbon
The Amazon rain forest popularly known as the lungs of the planet inhales carbon dioxide as it exudes oxygen Plants use carbon dioxide from the air to grow parts that eventually fall to the ground ... - Read More

Bacteria use hydrogen, carbon dioxide to produce electricity

Carbon, Carbon dioxide, Bacteria, Carbon dioxide, carbon, bacteria
Researchers have engineered a strain of electricity producing bacteria that can grow using hydrogen gas as its sole electron donor and carbon dioxide as its sole source of carbon Researchers at the University of Massachusetts ... - 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
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