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Geoscientists discover ancestral Puebloans survived on ice melt in New Mexico lava tubes（图）
Geoscientists ancestral Puebloans survived ice melt New Mexico lava tubes
2020/12/11
For more than 10,000 years, the people who lived on the arid landscape of modern-day western New Mexico were renowned for their complex societies, unique architecture and early economic and political ...
Regional mantle heterogeneity regulates melt production along the Réunion hotspot-influenced Central Indian Ridge
ridge-hotspot interaction MORB geochemistry crustal production upper mantle heterogeneity
2017/4/11
To ascertain factors controlling melt production along a typical distal, ‘hotspot-interacting’ mid-ocean ridge, we investigated
the extent and distribution of both plume-related and plume-unrelated b...
An analogue model of melt segregation and accumulation processes in the Earth's crust
analogue modelling melt segregation migmatites fractals self-organized criticality
2009/10/21
An analogue experiment was carried out to model melt segregation from the solid rock matrix and its subsequent transport. Carbon dioxide gas and sand were used as analogue materials of crustal partial...
Experimental study on tin partition between granitic silicate melt and coexisting aqueous fluid
experimental study tin partition granitic silicate melt aqueous fluidonment
2017/8/10
The distribution of tin between different granitic silicate melts and coexisting aqueous fluids have been determined at 850°C, 100 MPa and fO2 near NNO. Tin distribution coefficients are constrained ...
High-pressure X-ray diffraction study on the structure of NaCl melt using synchrotron radiation
NaCl high-pressure X-ray synchrotron radiation
2012/3/30
MoltenNaClwasanalyzedbyhigh-pressureX-raydiffractionexperimentsusingsyn-
chrotronradiationupto5GPaand1600Calongthemeltingcurve.Theinterference
function Qi(Q)andthecorrelationfunction g(r)werederived...
Systematics of Ni and Co in olivine from planetary melt systems: Lunar mare basalts
planetary melt systems:Luna rmare basalts Co Ni
2012/3/31
ThesystematicsofCoandNiinolivinefromsixApollo12olivinebasaltswerestudied
bySIMStechniquesandcorrelatedwithmajorandminorelementdataobtainedwiththe
electronmicroprobe.Ourresults,togetherwithpreviousst...
Melt viscosities in the system Na-Fe-Si-O-F-Cl: Contrasting effects of F and Cl in alkaline melts
Melt viscosities Na-Fe-Si-O-F-Cl alkaline melts
2012/4/1
The shear viscosities of melts in the system Na-Fe-Si-O-F-Cl were determined over a wide range of temperatures (400–1200 8 C) at 1 atm pressure in air. The compositions are based on the addition of Fe...
Heterogeneous crystal nucleation on bubbles in silicate melt
Heterogeneous crystal nucleation bubbles silicate melt
2012/4/1
Experiments reported herein document heterogeneous crystal nucleation on bubbles in supercooled lithium disilicate melt. Crystalline lithium disilicate (Li2Si2O5) nucleated and grew on small bubb...
Temperature dependence of the OH- absorption in the SiO2 glass and melt to 1975 K
Temperature dependence OH- absorption SiO2 glass
2012/3/31
FTIR absorbance spectra of SiO2 glass containing 1200 ppm OH2 groups were recorded in situ to 1975 K. There are only minor changes in peak height to 1700 K, indicating that the molar extinction coeffi...
Minor and trace element partitioning between pyroxene and melt in rapidly cooled chondrules
Minor trace element partitioning pyroxene melt rapidly cooled chondrules
2012/4/5
Wepresentminorandtraceelement(REE,Sr,Y,andZr)dataforpyroxenesandme-
sostasesinfourporphyriticchondrulesfromtheSemarkonaordinarychondrite.Apparent
partitioncoef?cientsforclinoenstatite,orthoenstatite...
The viscosity T/of dry and hydrous haplogranitic melts(anhydrous normative compo-sition: QZ28Ab340r38)has been determined between 3and 10kbar and 800 and 1400 DC using the falling-sphere method. The H...
Morphology and maturation of melt inclusions in quartz phenocrysts in afrom the Badlands rhyolite lava flow, southwestern Idaho
Morphology maturation of melt inclusions phenocrysts Badlands rhyolite lava flow southwestern Idaho
2012/4/5
Morphologiesofprimary rhyolitic meltinclusions in three successive populations of quartz phenocrysts in asinglevolcanic unit illustrate the changeofinclusion shape after trapping. The 14MaBadlandslava...
Granitic melt viscosities: Empirical and configurational entropy models for their calculation
Granitic melt viscosities entropy models calculation
2012/4/5
Newly measured viscosities ofa low H20-content granitic meltand a low H20-content albitic melthave been combined withviscosity data from the literature to create two new modelsfor the calculation ofgr...
Cooling Rate Dependency of the Formation of Smectite Crystals from a High-Pressure and High-Temperature Hydrous Melt
High pressure experiment Quenching rate Smectite crystals
2011/12/28
The effect of cooling rate on the formation of smectite crystals with high crystallinity was investigated using two different types of high-pressure and high-temperature apparatus, a modified belt typ...