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TARGET TRANSFORMATION CONSTRAINED SPARSE UNMIXING (TTCSU) ALGORITHM FOR RETRIEVING HYDROUS MINERALS ON MARS: APPLICATION TO SOUTHWEST MELAS CHASMA
Prior information Sparse unmixing Hydrous minerals Mars CRISM
2018/5/15
Quantitative analysis of hydrated minerals from hyperspectral remote sensing data is fundamental for understanding Martian geologic process. Because of the difficulties for selecting endmembers from h...
A model of sulphur solubility for hydrous mafic melts: application to the determination of magmatic fluid compositions of Italian volcanoes
sulphur hydrous basalts volcanic gas
2015/9/10
We present an empirical model of sulphur solubility that allows us to calculate f S2 if P, T, fO2 and the melt composition,
including H2O and S, are known. The model is calibrated against three main ...
Distribution of hydrous minerals in the subduction system beneath Mexico
Subduction Mexico receiver function hydrous minerals Bayesian inversion
2014/4/10
Teleseismic converted phases are used to probe the composition of the downgoing oceanic crust as a function of depth along the Cocos slab in central and southern Mexico. Previously, modeling of the re...
Hydrous, Low-carbon Melting of Garnet Peridotite
Hydrous Low-carbon Melting Garnet Peridotite
2014/4/8
The presence of volatile species in the Earth’s upper mantle drives
the formation of low-degree melts at pressures and temperatures
at which volatile-free mantle rocks would be subsolidus. The two
...
Oxidative scavenging of cerium on hydrous Fe oxide: Evidence from the distribution of rare earth elements and yttrium between Fe oxides and Mn oxides in hydrogenetic ferromanganese crusts
rare earth elements yttrium ferromanganese crust Fe oxide Mn oxide Ce oxidation seawater
2017/8/9
The distribution of the rare earths and yttrium (REY) in co-existing hydrous Mn oxides and Fe oxides that form marine hydrogenetic ferromanganese crusts is used to better describe the partitioning and...
A hydrous melting and fractionation model for mid-ocean ridge basalts: Application to the Mid-Atlantic Ridge near the Azores
A hydrous melting mid-ocean ridge basalts
2014/4/8
The major element, trace element, and isotopic composition of mid-ocean ridge basalt glasses affected
by the Azores hotspot are strongly correlated with H2O content of the glass. Distinguishing the r...
On the stability relations of hydrous minerals in water-undersaturated magmas
stability relations hydrous minerals water-undersaturated magmas
2012/4/1
Reaction of a hydrous mineral with a water-bearing silicate melt is analyzed in terms of the sto-
ichiometry of (in)congruent dissolution. Application of the law of mass action provides an explana-
...
Vibrational spectra of dense, hydrous magnesium silicates at high pressure: Importance of the hydrogen bond angle
high pressure hydrogen bond angle dense hydrous magnesium silicates
2012/3/31
Changes in configuration and hydrogen bonding are inferred from the complex responses of
peak parameters (frequency, width, height, and area) to compression for various hydroxyl groups) depend not on...
The effects of silica and water on the viscosity of hydrous quartzofeldspathic melts
hydrou smelts water
2012/3/30
Theviscositiesofhydrousmelts(0.65to2.8wt%H O)withquartzofeldspathiccom-2
Qz ,andAb Qz (moleproportionscalculatedonthe
positionscorrespondingtoAb,Ab
74 26 48 52
basisofeightoxygenatoms;Ab NaAlSi O ...
Synthesis, crystal structure, and phase relations of AlSiO3OH, a high-pressure hydrous phase
Synthesis crystal structure phase relations of AlSiO3OH high-pressure hydrous phase
2012/4/1
Phase egg, first described by Eggleton et al. (1978), was synthesized and its composition determined to be AlSiO3OH. The crystal structure of AlSiO3OH, including the position of the hydrogen, has been...
Twenty-two andradite samples from a variety of geological environments and two syn-thetic hydroandradite samples were studied by Fourier transform IR spectroscopy. Their spectra show that H enters and...
The influence of water on the structure of hydrous sodium tetrasilicate glasses
water structure hydrous sodium tetrasilicate glasses
2012/4/1
The structure of sodium tetrasilicate (Na2Si4O9) glasses containing 0 to 10 wt% water was investigated by a combination of Raman, IR, and NMR methods. Both the
29 Si magic angle spinning NMR data and...
Viscosity data for hydrous peraluminous granitic melts: Comparison with a metaluminous model
Viscosity data hydrous peraluminous granitic melts Comparison
2012/3/31
We performed 27 viscosity determinations on dry and water-bearing peraluminous hap-logranitic melts. The dry melt compositions cover the range of normative corundum to be expected in peraluminous gran...
A hydrous Ca-bearing magnesium carbonate from playa lake sediments, Salines Lake, Spain
A hydrous Ca-bearing magnesium carbonate from playa lake sediments Salines Lake Spain
2012/4/5
edimentsofplayaLakeSalines,SE,Spain,containacarbonatemineralcharacterizedbyXraydiffractionpeaksverysimilarto,butsystematicallyshiftedfromthoseofpuremagnesite.Analyses(SEM,IRandRamanspectroscopy,DTA,TG...
Crystal structure of the dense hydrous magnesium silicate, phase D
Crystal structure dense hydrous magnesium silicate phase D
2012/4/5
Liu(1986,1987)reportedthediffractionpatternofahydrousmagnesiumsilicatere-sultingfromthebreakdownofserpentineat22GPaand1000Candnamedthismaterial
!fi!fiphaseD.!fl!flSincethattimetherehavebeenseveralrep...