Diamonds and the geology of mantle carbon

SB Shirey, P Cartigny, DJ Frost… - … in Mineralogy and …, 2013 - pubs.geoscienceworld.org
Earth's carbon, derived from planetesimals in the 1 AU region during accretion of the Solar
System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after …

The redox state of Earth's mantle

DJ Frost, CA McCammon - Annu. Rev. Earth Planet. Sci., 2008 - annualreviews.org
Oxygen thermobarometry measurements on spinel peridotite rocks indicate that the oxygen
fugacity at the top of the upper mantle falls within±2 log units of the fayalite-magnetite-quartz …

Redox state of Earth's magma ocean and its Venus-like early atmosphere

PA Sossi, AD Burnham, J Badro, A Lanzirotti… - Science …, 2020 - science.org
Exchange between a magma ocean and vapor produced Earth's earliest atmosphere. Its
speciation depends on the oxygen fugacity (f O2) set by the Fe3+/Fe2+ ratio of the magma …

The oxidation state of the mantle and the extraction of carbon from Earth's interior

V Stagno, DO Ojwang, CA McCammon, DJ Frost - Nature, 2013 - nature.com
Determining the oxygen fugacity of Earth's silicate mantle is of prime importance because it
affects the speciation and mobility of volatile elements in the interior and has controlled the …

Emergence of two types of terrestrial planet on solidification of magma ocean

K Hamano, Y Abe, H Genda - Nature, 2013 - nature.com
Understanding the origins of the diversity in terrestrial planets is a fundamental goal in Earth
and planetary sciences. In the Solar System, Venus has a similar size and bulk composition …

The oxidation state of Fe in MORB glasses and the oxygen fugacity of the upper mantle

E Cottrell, KA Kelley - Earth and Planetary Science Letters, 2011 - Elsevier
Micro-analytical determination of Fe 3+/∑ Fe ratios in mid-ocean ridge basalt (MORB)
glasses using micro X-ray absorption near edge structure (μ-XANES) spectroscopy reveals …

Trace-element geochemistry of mantle olivine and application to mantle petrogenesis and geothermobarometry

JCM De Hoog, L Gall, DH Cornell - Chemical Geology, 2010 - Elsevier
Trace-element compositions of olivine from 75 mantle rocks of diverse origin, including
xenoliths from kimberlites, basaltic lavas and orogenic peridotites, were determined by laser …

Partial Melting Experiments of Peridotite + CO2 at 3 GPa and Genesis of Alkalic Ocean Island Basalts

R Dasgupta, MM Hirschmann, ND Smith - Journal of Petrology, 2007 - academic.oup.com
We document compositions of minerals and melts from 3 GPa partial melting experiments on
two carbonate-bearing natural lherzolite bulk compositions (PERC: MixKLB-1+ 2· 5 wt …

Experimental evidence for the existence of iron-rich metal in the Earth's lower mantle

DJ Frost, C Liebske, F Langenhorst, CA McCammon… - Nature, 2004 - nature.com
The oxidation state recorded by rocks from the Earth's upper mantle can be calculated from
measurements of the distribution of Fe3+ and Fe2+ between the constituent minerals,,. The …

Diamond formation—Where, when and how?

T Stachel, RW Luth - Lithos, 2015 - Elsevier
Geothermobarometric calculations for a worldwide database of inclusions in diamond
indicate that formation of the dominant harzburgitic diamond association occurred …