Tags Geochemistry

Tag: Geochemistry

Experiments cast doubt on theory of how Earth was formed

New geochemical research indicates that existing theories of the formation of the Earth may be mistaken. The results of experiments to show how zinc...

Insights into biogeochemical cycles based on glacial meltwater chemistry

Ph.D. student Lukasz Stachnik received funding from the Arctic Field Grant (AFG) in 2012 and 2013. He has, together with colleagues from HiSF and...

Moon is proto-Earth’s mantle, relocated

Measurements of an element in Earth and Moon rocks have just disproved the leading hypotheses for the origin of the Moon. Tiny differences in the...

Some islands started in diamond-bearing regions under continents, geochemists say

The raw materials of some volcanic islands are shaped by some of the same processes that form diamonds deep under the continents, according to...

Project maps the chemistry of the world’s oceans

Human actions are changing the oceans' chemistry. Pollution washes in from the coasts, iron-laden dust blows in from increasingly arid land, greenhouse gases raise...

Geochemical detectives use lab mimicry to look back in time

New work from a research team led by Carnegie's Anat Shahar contains some unexpected findings about iron chemistry under high-pressure conditions, such as those...

Oxygen key to containing coal ash contamination

As energy companies decide what to do with aging coal ash disposal facilities in North Carolina and across the nation, they may be overlooking...

Geochemists show experimental verification of principle of detailed balance

Geochemists at Indiana University and Virginia Tech have developed and demonstrated a technique for assessing the validity of a principle that has long been...

Cosmochemists find evidence of rare element in early solar system

University of Chicago scientists have discovered evidence in a meteorite that a rare element, curium, was present during the formation of the solar system....

A distant planet’s interior chemistry may differ from our own

As astronomers continue finding new rocky planets around distant stars, high-pressure physicists are considering what the interiors of those planets might be like and...

The Chemistry of Waters that Follow from Fracking: A Case Study

In a study of 13 hydraulically fractured shale gas wells in north-central Pennsylvania, USGS researchers found that the microbiology and organic chemistry of the...

Geochemical process on Saturn’s moon linked to life’s origin

New work from a team including Carnegie's Christopher Glein has revealed the pH of water spewing from a geyser-like plume on Saturn's moon Enceladus....

Chemistry of seabed’s hot vents could explain emergence of life

Hot vents on the seabed could have spontaneously produced the organic molecules necessary for life, according to new research by UCL chemists. The study...

Geochemical signals foretell Icelandic earthquakes

Seismologists have long yearned for a way to forecast imminent earthquakes, which remain predictable only in a long-term probabilistic sense. Past studies have suggested...

Study finds missing piece of biogeochemical puzzle in aquifers

A study published today in Science by researchers from the U.S. Department of Energy's Argonne National Laboratory may dramatically shift our understanding of the...

Geochemical ‘fingerprints’ leave evidence that megafloods eroded steep gorge

The Yarlung-Tsangpo River in southern Asia drops rapidly through the Himalaya Mountains on its way to the Bay of Bengal, losing about 7,000 feet...

Geochemical Method Finds Links Between Terrestrial Climate and Atmospheric Carbon Dioxide

Nearly 34 million years ago,  Earth underwent a transformation from a warm, high-carbon dioxide "greenhouse" state to a lower-CO2, variable climate similar to the...

Studying Ancient Earth’s Geochemistry

Researchers still have much to learn about the volcanism that shaped our planet's early history. New evidence from a team led by Carnegie's Frances...

MOST POPULAR

MORE ARTICLES