Tag Archives: chemistry
Atmospheric chemistry: Warming or cooling dust?
Nature Geoscience 10, 246 (2017). doi:10.1038/ngeo2923 Author: Paul Ginoux Mineral dust particles interact with solar and terrestrial radiation. Statistical analyses of observational data and global simulations reveal that atmospheric dust is coarser than previously thought, and could cause warming of … Continue reading
Massive, computer-analyzed geological database reveals chemistry of ancient ocean
A study that used a new digital library and machine reading system to suck the factual marrow from millions of geologic publications dating back decades has unraveled a longstanding mystery of ancient life: Why did easy-to-see and once-common structures called … Continue reading
Constraints on ocean carbonate chemistry and pCO2 in the Archaean and Palaeoproterozoic
Nature Geoscience 10, 41 (2017). doi:10.1038/ngeo2844 Authors: C. L. Blättler, L. R. Kump, W. W. Fischer, G. Paris, J. J. Kasbohm & J. A. Higgins Nature Geoscience – Issue – nature.com science feeds
Deep mantle chemistry surprise: Carbon content not uniform
Even though carbon is one of the most-abundant elements on Earth, it is actually very difficult to determine how much of it exists below the surface in Earth’s interior. Analysis of crystals containing completely enclosed mantle magma with its original … Continue reading
Deep mantle chemistry surprise: Carbon content not uniform
Olivine crystals containing melt inclusions (the dark spots on the interiors) sampled from the Mariana arc. These crystals were not part of this study, but illustrate what melt inclusions look like. Even though carbon is one of the most-abundant elements … Continue reading
Hydraulic fracturing fluids affect water chemistry from gas wells
Waste pit on hydraulic fracturing … Pressure, temperature and fluid composition play an important role in the amount of metals and other chemicals found in wastewaters from hydraulically fractured gas reservoirs, according to Penn State researchers. “We hope that this … Continue reading
earthstory: A slice through chemistry As this lovely crystal…
earthstory: A slice through chemistry As this lovely crystal of tourmaline slowly grew in a cooling pegmatite (the last fluid rich remnants of granites that crystallise slowly, allowing larger crystals to form while concentrating many rare elements that form many … Continue reading
Forms of life governed by chemistry
IMG title=”” alt=”” src=”http://www.mineralfossil.com/wp-content/uploads/2014/03/wpid-892d9cacc9a0886befb32b87a6648313.jpg” IMG class=”hide” alt=”Forme dei viventi governate da chimica” src=”http://www.mineralfossil.com/wp-content/uploads/2014/03/wpid-892d9cacc9a0886befb32b87a6648313.jpg”(ANSAmed) – Rome, 11 MAR – 60 years since the death of the father, Alan Turing, was confirmed for the first time his theory that explains how every … Continue reading