My watch list
my.chemeurope.com  
Login  

20 Current news about the topic geochemistry

rss

You can refine your search further. Select from the filter options on the left to narrow down your results.

image description
Geochemists measure new composition of Earth’s mantle

19-Sep-2019

What is the chemical composition of the Earth’s interior? Because it is impossible to drill more than about ten kilometres deep into the Earth, volcanic rocks formed by melting Earth’s deep interior often provide such information. Geochemists at the Universities of Münster (Germany) and Amsterdam ...

more

image description
New Measurement Device: Carbon Dioxide As Geothermometer

Researchers quantify rare CO2 variants using laser spectroscopy

22-May-2019

For the first time it is possible to measure, simultaneously and with extreme precision, four rare molecular variants of carbon dioxide (CO2) using a novel laser instrument. It is thus able to measure the temperature during the formation of CO2-binding carbonates and carbonaceous fossils ...

more

image description
Rust never sleeps

Chinks in iron crystals that can 'heal'

06-Feb-2019

Like iron flowing through the blood stream, iron minerals course through the ground. These minerals are used to make steel and other metal alloys used in everything from cell phone components and cars to buildings, industrial equipment and infrastructure. Unfortunately, when exposed to oxygen and ...

more

Widespread uranium contamination found in India's groundwater

11-Jun-2018

A new Duke University-led study has found widespread uranium contamination in groundwater from aquifers in 16 Indian states. The main source of the uranium contamination is natural, but human factors such as groundwater-table decline and nitrate pollution may be exacerbating the problem. Several ...

more

image description
Heavy-petroleum fuels raising vanadium emissions

19-Dec-2017

Human emissions of the potentially harmful trace metal vanadium into Earth's atmosphere have spiked sharply since the start of the 21st century due in large part to industry's growing use of heavy oils, tar sands, bitumen and petroleum coke for energy, a new Duke University study finds. "Human ...

more

image description
Huge carbon sink in soil minerals

09-Nov-2017

A Washington State University researcher has discovered that vast amounts of carbon can be stored by soil minerals more than a foot below the surface. The finding could help offset the rising greenhouse-gas emissions helping warm the Earth's climate. Marc Kramer, an assistant professor of ...

more

image description
Searching for answers on the sea floor

How abiotic organic molecules are formed

14-Jun-2017

The sea floor may look barren, but Qi Fu, an experimental geochemist at the University of Houston, says there are places where it is teeming with life. Hydrothermal vents, fissures on the sea bottom which release fluids heated by volcanic rocks, are particularly rich, but science can't yet ...

more

image description
New insights about our Earth’s lower mantle

Scientists X-ray the most abundant mineral of Earth

21-Jul-2016

Using DESY's bright X-ray light source PETRA III, a team of scientists has discovered unexpected facts about the most abundant mineral on Earth. The mineral bridgmanite makes up roughly one third of Earth’s entire volume and is the major component of Earth’s lower mantle. Thus, its physical ...

more

image description
Rust under pressure could explain deep Earth anomalies

10-Jun-2016

Using laboratory techniques to mimic the conditions found deep inside the Earth, a team of Carnegie scientists led by Ho-Kwang "Dave" Mao has identified a form of iron oxide that they believe could explain seismic and geothermal signatures in the deep mantle. Iron and oxygen are two of the most ...

more

image description
Radioactive isotopes reveal age of oil and gas wastewater spills

12-May-2016

Spills from oil and gas operations can contaminate local water and soil with high levels of toxic chemicals, salts and radioactivity, but in many cases there is insufficient information to determine how long ago the spill occurred and identify its source. A trio of new age-dating methods ...

more

Page 1 From 2
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE