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30 matches found for "sedimentary rock samples"
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Earth's early ocean cooled more than a billion years earlier than thought
Their findings suggest that the early ocean was much more temperate and that, as a result, life likely diversified and spread across the globe much sooner in Earth's history than has been general...
Earth Sciences |
Read moreScientists obtain rocks moving into seismogenic zone
An international group of scientists aboard the Deep-Sea Drilling Vessel CHIKYU, operated by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) for the Integrated Ocean Drilling Progra...
Earth Sciences | Read moreLife on Mars? Brown-led research team says elusive mineral bolsters chances
What is less known is how much water occupied the red planet and what happened to it during its geological march to the present. Mostly, evidence has pointed to a period when clay-rich minerals were f...
Physics and Astronomy | Read moreSedimentary records link Himalayan erosion rates and monsoon intensity through time
The climate over much of Asia is dominated by seasonal winds that carry moist air over the Pacific Ocean into East Asia and over the Indian Ocean into South Asia. The East and South Asian monsoons are...
Earth Sciences | Read moreDeep biosphere research points to new methods for recovering petroleum
Although the biological diversity of these deep biosphere microorganisms may surpass that of the more familiar surface biosphere, much about them is still unknown, including the origin of the organic ...
Earth Sciences | Read moreSTONE-6 artificial meteorite shows martian impactors could carry traces of life
The STONE-6 experiment tested whether sedimentary rock samples could withstand the extreme conditions during a descent though the Earth’s atmosphere where temperatures reached at least 1700 degrees Ce...
Physics and Astronomy | Read moreTyphoons Bury Tons of Carbon in the Oceans
Anne Carey, associate professor of earth sciences at Ohio State, said that she and her colleagues have braved two typhoons since starting the project in 2004. The Geology paper details their findings ...
Ecology, The Environment and Conservation | Read more'New' ancient Antarctic sediment reveals climate change history
FSU’s latest Antarctic sediment core acquisition was extracted from deep beneath the sea floor of Antarctica’s western Ross Sea, the Earth’s largest floating ice body. The new samples -- segments of a...
Earth Sciences | Read moreLow oxygen and molybdenum in ancient oceans delayed evolution of life by 2 billion years
A deficiency of oxygen and the heavy metal molybdenum in the ancient deep ocean may have delayed the evolution of animal life on Earth by nearly two billion years, a study led by UC Riverside biogeoch...
Earth Sciences | Read moreUnderstanding the origin of rubies and sapphires to improve prospecting strategies
Thanks to a pooling of results from several international research teams (1), a databank for compiling the oxygen isotope concentration ratios, 18O/16O, for the corundums of all basaltic-type placers ...
Earth Sciences | Read moreFish helps geologists
The Antarctic toothfish is a big fish about 135 centimeters long, its average weight making 35 kilograms (although some specimens are known to have an adult man’s parameters: 190 centimeters and 80 ki...
Life Sciences | Read moreResearchers detect hint of oxygen 50 to 100 million years earlier than first believed
Two teams of scientists, including three researchers from UC Riverside, report that traces of oxygen appeared in Earth’s atmosphere roughly 100 million years before the “Great Oxidation Event” 2.4 bil...
Earth Sciences | Read moreStudy reveals predation-evolution link
For decades, there has been a debate between paleontologists, biologists, and ecologists on the role of ecological interactions, such as predation, in the long term patterns of animal evolution. ...
Studies and Analyses | Read moreAncient organisms discovered in Canadian gold mine
Now, a team of scientists present direct evidence that the three domains of life coexisted at least as long as 2.7 billion years ago.The discovery came from chemical examination of shale sampl...
Earth Sciences | Read moreNatural Oil In Baikal
Fortunately, environment protectors have managed to achieve the transfer. However, Baikal has turned out to cope already with its own oil blowouts – there are oil seepages in the self zone of the lake...
Ecology, The Environment and Conservation | Read more
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