High - pressure granulite and the coexisting eclogite and coesite - bearing ultrahigh - pressure eclogite have been subsequently found in the western syntaxis since 80s " last century 自20世纪80年代以来，西构造结已经发现了高压麻粒岩，与高压麻粒岩共生的榴辉岩和含柯石英的超高压榴辉岩。
There , underneath thick patches of arctic moss and lichens , all - important bands of milky , quartz - rich rock gleam among the darker volcanic slabs surrounding them 在那儿，在一丛丛厚厚的极地苔藓与地衣之下，那极为重要的、富含石英的乳白色带状岩石，在邻近深色火山岩板的衬托下闪著微光。
Resin based reactive compounds used for electrical insulation - specifications for individual materials - quartz filled epoxy resinous compounds - sheet 2 : quartz filled epoxy resinous compounds 电气绝缘用树脂基反应性复合物.单项材料规范.填石英的环氧树脂复合物.第2活页:填石英的环氧树脂复合物
This factory founded in 1997 , was " the nation epoxy resin application technology academic society " the member , the specialty is engaged in the natural quartz the smashing processing development and the use 本厂创建于1997年，是“全国环氧树脂应用技术学会”会员，专业从事天然石英的粉碎加工开发和利用。
4 . when the quartz fraction was cleaned of feldspar grains by etching in concentrated hf for 40min , more quartz fraction was etched away , and this method may be not suitable for the purity of quartz in loess 所以，黄土细颗粒混合矿物的blsl可能来自石英和长石， post - irosl与纯蓝光释光信号(无ir暴露)相比，更富含石英的osl 。
The electrical conductivity of quartz decreases with increasing angle to c axis at the same temperature and pressure due to decreasing of the channel size . there is no sudden change in the conductivity at the transition point 在相同的温度和压力条件下，石英的电导率和c轴的夹角有关，石英的电导率随着夹角的增大而减小，表现出了强烈的各向异性。
As quartz fraction in loess is separated by the tedious process of etching with fluorosilicic acid for 6 days , 20ml 30 % fluorosilicic acid per gram , not only the feldspars in loess could be removed completely , but also less quartz could be etched away in loess 溶蚀实验表明，用40 hf溶蚀40min对石英的损失太大，不适合黄土中石英的分离。用30氟硅酸（ 20ml冶）溶蚀约6天，分离黄土中的石英颗粒，既可以溶蚀掉长石颗粒，又对石英的损失较小。
In order to elaborate the app licability of osl to loess , especially single aliquot regenerative protocol ( sar ) , involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess , such explanations as light bleaching , preheat , anomalous fading , prior - ir exposure were investigated in this paper . for drawing adequate coarse grains from loess , quartz and feldspars , as well as loess , were etched by hydrofluoric acid and fluorosilicic acid . the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains 本文通过渭河流域全新世黄土的光晒退实验，地表黄土样品的d _ e值测定，细颗粒单片的预热、反常衰退、红外暴露实验，说明释光测年在全新世黄土中应用的可行性及单片再生剂量法( sar )在黄土细颗粒中的适用性；为了从黄土中分离出足够的粗颗粒，进行了纯石英和长石的氢氟酸( hf )和氟硅酸( h _ 2sif _ 6 )溶蚀实验，黄土粗颗粒石英溶蚀分离实验；通过细颗粒单片、多片的blsl 、 irsl和post - irosl ，热释光，及粗颗粒石英的blsl的年代测定，选择适于全新世黄土的释光测年方法，并建立了渭河流域全新世黄土的年代序列。
Plastic strain first starts from ambient of the porphyroblast , and then develops to rims of porphyroblast and gradually transfers to the centers of porphyroblasts . the brittle remains in the central parts of porphyroblasts come to be decreased through the plastic deformation development , which is accordance with the banding of intensity in many mylonitization zones on wild occurrences and observation in the fabrics of mylonitization rocks under microscope 长石眼球构造的形成主要是由长石与石英的韧性差决定的，塑性变形首先从斑晶的周围部分开始，逐渐向斑晶发展，脆性残斑核不断减小，这与剪切带内糜棱岩化强度分带相一致。
