搜索结果: 1-15 共查到“理学 Quartz”相关记录50条 . 查询时间(0.333 秒)
Evolution of the volcanic plumbing systemof Alicudi (Aeolian Islands - Italy): evidence from fluid and melt inclusionsin quartz xenoliths
Aeolian Islands fluid inclusions crustal xenoliths homogenisation temperature magma plumbing system
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2015/9/15
Quartz-rich xenoliths in lavas (basalts to andesites; 90-30 ka) from Alicudi contain abundant melt and fluid inclusions. Two generations of CO2-rich fluid inclusions are present in quartz-rich xenolit...
Tracking the Evolution of Mid Cenozoic Silicic Magma Systems in the Southern Chocolate Mountains Region, California Using Zircon Geochemistry and Quartz and Zircon Geothermometry
Chocolate Mountains zircon quartz geothermometer geochemistry
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2015/1/16
During the mid Cenozoic, the Chocolate Mountains region of southeastern California experienced crustal extension slightly before, during, and after the main pulse of magmatism. This combined with mid-...
Microscale strain partitioning? Differential quartz crystallographic fabric development in Phyllite, Hindu Kush, Northwestern Pakistan
Space the fabrics of quartz c axis the overall structure quartz grains
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2015/1/6
Spatially referenced quartz c axis fabrics demonstrate the preservation of multiple, distinct fabrics in a specimen collected from northwestern Pakistan. The overall fabric yielded by the specimen is ...
Transport processes at quartz–water interfaces: constraints from hydrothermal grooving experiments
Hydrothermal annealing experiment quartzite fluid pressure the topological structure
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2015/1/6
We performed hydrothermal annealing experiments on quartzite samples at temperatures of 392 to 568 °C and fluid pressures of 63 to 399 MPa for up to 120 h, during which hydrothermal grooves developed ...
Short-wavelength undulatory extinction in quartz recording coseismic deformation in the middle crust – an experimental study
Short-wavelength undulatory extinction quartz recording coseismic deformation
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2015/1/5
Deformation experiments are carried out on natural vein quartz in a modified Griggs-type solid medium apparatus to explore the preservation potential of microfabrics created by crystal-plastic d...
Application of titanium-in-quartz thermobarometry to greenschist facies veins and recrystallized quartzites in the Hsüehshan range, Taiwan
Accuracy reliability green schist facies rocks titanium concentration crystallization quartzite vein quartz snow-capped mountains
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2015/1/5
The accuracy, reliability and best practises of Ti-in-quartz thermobarometry (TitaniQ) in greenschist facies rocks have not been established. To address these issues, we measured Ti concentrations in ...
Molecular-level mechanisms of quartz dissolution under neutral and alkaline conditions in the presence of electrolytes
quartz dissolution molecular-level mechanisms electrolytes pH conditions quantum chemistry calculation
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2017/4/11
The mechanisms of quartz dissolution are affected intricately by pH conditions and electrolyte types. Most previous
studies have focused on the mechanisms of quartz dissolution under one specific con...
The Role of Extensional Fractures and Quartz Veins in the Formation of Kaolin Deposit From the Dwyka Tillite in Grahamstown, Eastern Cape Province, South Africa
Role Extensional Fractures Quartz Veins Formation Kaolin Dwyka Tillite
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2012/3/14
The Role of Extensional Fractures and Quartz Veins in the Formation of Kaolin Deposit From the Dwyka Tillite in Grahamstown, Eastern Cape Province, South Africa.
Atomistic Molecular Dynamics Simulations of Shock Compressed Quartz
Shock wave Molecular Dynamics BKS potential Quartz
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2011/8/4
Abstract: Atomistic non-equilibrium molecular dynamics (NEMD) simulations of shock wave compression of quartz have been performed using the so-called BKS semi-empirical potential of van Beest, Kramer ...
Spectral and temporal characterization of a fused-quartz microresonator optical frequency comb
Spectral and temporal characterization fused-quartz microresonator optical frequency comb
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2011/9/1
We report on the fabrication of high-Q, fused-quartz microresonators and the parametric genera-tion of a frequency comb with 36 GHz line spacing using them. We have characterized the intrinsic stabili...
Sr, Nd and O isotopic characters of quartz syenite in the Weiya magmatic complex from eastern Tianshan in NW China: Melting of the thickened juvenile lower crust
quartz syenite intra-continental subduction Weiya Central Tianshan Northwestern China
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2017/8/9
New Sr-Nd-O isotopic data are reported for the early Triassic (early Indosinian) Weiya quartz syenite from eastern Central Tianshan, northwestern China, with the aim of documenting its possible source...
Development of crystallographic preferred orientation and microstructure during plastic deformation of natural coarse-grained quartz veins
Development of crystallographic preferred orientation and microstructure plastic deformation natural coarse-grained quartz veins
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2014/5/20
The microstructure and crystallographic preferred orientation (CPO) of quartz were quantified in 17 samples of natural monomineralic tabular veins. The veins opened and were= deformed, up to shear str...
Determination of Linear Short Chain Aliphatic Aldehyde and Ketone Vapors in Air Using a Polystyrene-coated Quartz Crystal Nanobalance Sensor
Linear Short Chain Aliphatic Aldehyde and Ketone Vapors Polystyrene-coated Quartz Crystal Nanobalance Sensor
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2010/9/17
A polystyrene coated quartz crystal nanobalance (QCN) sensor was developed for use in the determination of a number of linear short-chain aliphatic aldehyde and ketone vapors contained in air. The qua...
Roundness and surface features of quartz grains in Middle Devonian deposits of the East Baltic and their palaeogeographical implications
East Baltic Devonian roundness of detrital particles surface texture of quartz
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2009/10/21
The roundness and surface texture of quartz grains were studied in Devonian sediments of 32 drill cores. Roundness was estimated in more than 800 samples and surface textures were examined under scann...
AMS measurement of In-situ produced cosmogenic 10Be in Loess Quartz in Luochuan
Loess in Luochuan In-situ produced cosmogenic 10Be AMS measurement
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2009/8/17
Loess is the most important and the most typical continental classic sediments of Quaternary. So the measurement of In-situ produced cosmogenic 10Be is expected to be used for the Loess stratigraphic ...