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1 ad-out of the trapped electron population in feldspar.
2 nd from regions composed of pure plagioclase feldspar.
3 ined by quartz, silica-rich glass, or alkali feldspar.
4 weathering aluminosilicates, kaolinite and K-feldspar.
5 f ice on high-energy (100) surface planes of feldspar.
6 the promotion of both Al and Si release from feldspars.
7 ilica-rich, nanometers-thick skin on certain feldspars.
8 sition-metal ions, and P occur inside modern feldspars.
9 deposition growth of aligned ice crystals on feldspar, an atmospherically important component of mine
10 and intraplate settings are distinguished by feldspar and clinopyroxene fractions (determined by diff
11 s of two atmospherically important minerals (feldspar and quartz).
12 re Formation, which consisted primarily of K-feldspar and quartz.
13  rocks with intergrown pyroxene, plagioclase feldspar, and altered olivine and overlying trachy-andes
14 ount for Buckskin's tridymite, cristobalite, feldspar, and any residual high-SiO2 glass.
15 survival of large-pore zeolites, honeycombed feldspar, and encapsulated species.
16  typical major constituent minerals (quartz, feldspar, and mica).
17 component modeled as a combination of glass, feldspar, and sheet silicates (approximately 20 to 30%)]
18 overy of new high-pressure polymorphs of the feldspars anorthite (CaSi(2)Al(2)O(8)), albite (NaAlSi(3
19               Previous structural studies of feldspars are limited to ~10 GPa, and have shown that th
20                                              Feldspars are rock-forming minerals that make up most of
21                   Along the mantle geotherm, feldspars are stable at pressures up to 3 GPa and may pe
22  ready for crystallization into zeolites and feldspars, as in present continental basins.
23            In addition, fluvial reworking of feldspar-bearing pumice clasts (the target rock for age
24              This might explain why some old feldspar-bearing rocks weather slower than predicted fro
25  under mixed-phase cloud conditions, despite feldspar being a minor component of dust emitted from ar
26 ate effects of acetate and oxalate on alkali feldspar-brine interactions in a simulated geologic carb
27 phous silica rather than hydroxylated silica-feldspar, but natural feldspar may respond differently.
28 onmelted, precursor minerals phases (quartz, feldspar, calcite), "feldspathic-rich" glass, "average"
29 successive sodic and potassic alterations of feldspar can occur via a single self-evolved, originally
30 violet laser argon-argon dating of potassium feldspar cements containing fluid inclusions, we determi
31 clast (d = 2cm) has coexisting variations in feldspar composition and oxygen isotope ratios that can
32            High-pressure phases derived from feldspars could persist at depths corresponding to the E
33 measured from core to rim across plagioclase feldspar crystals can be used to monitor changes in the
34 rast, the outward Si-OH of simple quartz and feldspar crystals generates their ionic organophobicity.
35 39)Ar method is to fuse dozens of individual feldspar crystals.
36 iosignature for metasediments derived from K-feldspar-depleted rocks that were abundant crustal compo
37                                Natural K, Na-feldspars develop fragile surfaces as etch pits expand i
38  provide new insights into the dependence of feldspar dissolution kinetics on the crystallographic pr
39 Si order may affect the effect of oxalate on feldspar dissolution: a promotion of ~500% in terms of c
40 rved to convert to the sanidine polymorph of feldspar during certain heat treatments within the norma
41                                 In addition, feldspar exhibits a positive correlation with shale gas
42           Inter- and intragranular potassium feldspar from the deposit yields an argon-argon age of 2
43 on, yielding sub-mum clay precipitation on K-feldspar grains in the core's upstream end.
44 sibility depends on the mineral structure: K-feldspar > Mn nodule > hendricksite mica.
45 om a global aerosol model study suggest that feldspar ice nuclei are globally distributed and that fe
46 rmed from non-equilibrium partial melting of feldspar in granitoid rocks.
47                                              Feldspar is important to uranium remediation efforts at
48 electron-hole recombination within quartz or feldspar; it relies, by default, on destructive read-out
49  time, some of this albite was replaced by K-feldspar (KAlSi(3)O(8)), in contrast to predictions from
50 le polymorphs of SiO(2) (cristobalite) and K-feldspar (kokchetavite) that we interpret as rapidly coo
51  have a remarkable texture, with crystals of feldspar linked together in a continuous three-dimension
52 sieve zeolites, I proposed that some natural feldspars lose weakly bonded Al-OH (aluminol) to yield s
53 (~Fo62), augite, and pigeonite, with minor K-feldspar, magnetite, quartz, anhydrite, hematite, and il
54 an hydroxylated silica-feldspar, but natural feldspar may respond differently.
55                            Silica-terminated feldspar might be a promising ceramic surface.
56 ophilic silica-rich surfaces of zeolites and feldspars might generate replicating biopolymers from si
57 icic surfaces of micrometer-wide channels of feldspars might have led to assembly of replicating cata
58 shed droplet-freezing technique to show that feldspar minerals dominate ice nucleation by mineral dus
59  as a representative of naturally abundant K-feldspar minerals.
60 e, kaolinite, smectite, anorthite, albite, K-feldspar, muscovite, quartz, goethite, and galena ranged
61 es, i.e., UO(2)2+, CO(3)2-, and UO(2)CO3, in feldspar nanosized fractures.
62 scopy of honeycomb channels inside weathered feldspars of the Shap granite (northwest England) has re
63 ness (Rq < 500 nm), such as large and smooth feldspar or quartz crystal surface sections as well as i
64 issolution for sanidine (a highly disordered feldspar) owing to oxalate, while the corresponding incr
65 ice nuclei are globally distributed and that feldspar particles may account for a large proportion of
66 igh ice nucleation efficacy of potassium (K)-feldspar particles.
67 ano/micrometer channels of ancient weathered feldspars, plus exploitation of phosphorus and various t
68         The crystal structure of H-exchanged feldspar provides atomic positions for computer modeling
69 e intra-crystalline plasticity of quartz and feldspar relieves stress by aseismic creep and earthquak
70 ate tectonics, whereas the Moon acquired its feldspar-rich crust by way of plagioclase flotation in a
71  Al/Si and Ca/Si ratios rule out a lunarlike feldspar-rich crust.
72 analysis show that olivine and a plagioclase feldspar-rich mesostasis in the Lafayette meteorite have
73                         These meteorites are feldspar-rich, with andesite bulk compositions.
74 that both organics enhance the net extent of feldspar's dissolution, with oxalate showing a more prom
75  simulations showed that the presence of the feldspar surface diminishes the diffusion coefficients o
76   Lack of an Al-OH infrared frequency from a feldspar surface is consistent with such a silanol-domin
77 rofiles of the same species adsorbing on the feldspar surface revealed a large favorable free energy
78                                              Feldspar surfaces respond to chemical, biological, and m
79 eling of complex ideas for silica-terminated feldspar surfaces.
80  H/O transfers in hydrous n-C(20)H(42)-H(2)O-feldspar systems.
81                                              Feldspar thermal disequilibrium textures indicate that t
82 onding increase for albite (a highly ordered feldspar) was ~90%.
83 ation-exchange, and kinetic dissolution of K-feldspar were included in the model.
84 ite and hornblende happens at the expense of feldspar, which showed the highest sorption uptake in a
85 ndstones composed of 70-85% quartz and 5-12% feldspar, with good pore connectivity.