Results 81 to 90 of about 1,482 (183)

Volatiles and Redox Along the East African Rift

Geochemistry, Geophysics, Geosystems
The upper mantle under the Afar Depression in the East African Rift displays some of the slowest seismic wave speeds observed globally. Despite the extreme nature of the geophysical anomaly, lavas that erupted along the East African Rift record modest ...
Maryjo Brounce, Sara Scoggins, Tobias P. Fischer, Heather Ford, Joseph Byrnes   +4 more
doaj   +1 more source

Evidence for a dominantly reducing Archaean ambient mantle from two redox proxies, and low oxygen fugacity of deeply subducted oceanic crust. [PDF]

Sci Rep, 2019
Aulbach S, Woodland AB, Stern RA, Vasilyev P, Heaman LM, Viljoen KS.   +5 more
europepmc   +1 more source

Experimental petrology and the upper mantle: simulating peridotitic sources and mantle heterogeneities

All Earth
Experimental petrology provides a direct means of constraining mineral phase stability and primary magma compositions across a wide range of pressure – temperature (P-T) conditions.
Caroline D. K. Tolotti, Rommulo Vieira Conceição   +1 more
doaj   +1 more source

Effect of Oxygen Fugacity on Fassaitic Pyroxene

Effect of Oxygen Fugacity on Fassaitic Pyroxene
Stability of fassaitic pyroxene in the system CaMgSi2O6-CaFeAlSiO6-CaAl2SiO6-CaTiAl2O6 is discussed on the basis of published data. In the system CaMgSi2O6-CaFeAlSiO6 the stability field of clinopyroxene decreases with an increase in CaFeAlSiO6 content and a decrease in oxygen fugacity at constant temperature.
openaire  

Chlorine (Cl) and hydrogen chloride (HCl) solubility in hydrous silicate melts: implications for volcanic gas composition. [PDF]

Contrib Mineral Petrol
Rusiecka MK, Wood BJ.
europepmc   +1 more source

Reactive formation of magnesiowüstite at the lunar core-mantle boundary. [PDF]

Nat Commun
Xu Q, Gao S, van Westrenen W, Gréaux S, Kono Y, Wu P, Xu Y, Shang S, Xiang H, Kakizawa S, Tsujino N, Higo Y, Lin Y.   +12 more
europepmc   +1 more source

The Mantle Fe³⁺/ΣFe Ratio Has Doubled Since the Early Archean. [PDF]

Nat Commun
Zhu XX, Duan WY, Gerya T, Zhou X, Tian JC.   +4 more
europepmc   +1 more source

In Vivo Passive Sampling Implantation in Fish for Monitoring of PAHs: Calibration and Kinetics. [PDF]

J Xenobiot
Narváez Valderrama JF, García Londoño JJ, Gil Ramírez D, Arias-Monsalve CS, Gallego JL.   +4 more
europepmc   +1 more source

Earth's core-mantle differentiation shaped by water. [PDF]

Sci Adv
Luo H, Zheng D, Deng J.
europepmc   +1 more source

Mantle oxygen fugacity and diamond formation

International Kimberlite Conference Extended Abstracts: 2003, 2019
openaire   +2 more sources