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钾长石     
相关语句
  potash feldspar
     Thermodynamic Analysis of Thermal Decomposition of Potash Feldspar and Calculation of ΔGT
     钾长石热分解热力学分析和ΔG°_T计算
短句来源
     Experimental Research of the Synthesizing of 13X Molecular Sieves from Potash Feldspar Ores
     钾长石合成13X分子筛的实验研究
短句来源
     The process of separating impregnated iron from potash feldspar has been studied in alkaline solution by JC-COP activator and enhanced leaching agent after reelection and magnetic separation, as a result, the content of Fe2O3 in potash feldspar product decreases from 4.05% to 0.1%~0.2%, and its color becomes white from pink, its quality is high, and the economic benefi t will be improved.
     研究了钾长石经重选、磁选后,利用JC-COP铁活化剂、增浸剂在碱性条件下分离钾长石中浸染型铁,可使钾长石中Fe2O3含量从4.05%降低至0.1%~0.2%范围,产品由淡粉红变为纯白色,达到优质产品标准,提高了经济效益。
短句来源
     the potash feldspar in syenogranite may belong to a transition type between orthoclase and microcline and with a high total t1(0.99) but t1(o)(0.52) ≈ t1(m)(0.47);
     正长花岗岩中的钾长石可能属于介于正长石和高微斜长石之间的过渡类型,t1很高(0.99),但t1(o)≈t1(m),分别为0.52和0.47;
短句来源
     4)The rock has porphyritic structure,in the porphyritic crystal,the potash feldspar belong to high tempreture,the quartz is βtype,the plagioclase An=7-20,mainly is feldspathaid;
     (4)岩石具似斑状结构,斑晶中钾长石为高温变种,石英为β型,斜长石牌号An=7~20,以更长石为主;
短句来源
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  potassium feldspar
     Na 2 O,MgO,Al 2 O 3 ,SiO 2 ,P 2 O 5 ,K 2 O,CaO,TiO 2 ,Fe 2 O 3 ,Rb,Sr,Y,Zr,Ba in sodium and potassium feldspar were analyzed by X ray fluorescence spectrometry with fusion sample preparation. The results were in agreement with those provided by chemical methods with precision of 0.10%~4.67% RSD ( n =33).
     采用熔融制样X射线荧光光谱法测定钠长石和钾长石中的Na2O、MgO、Al2O3、SiO2、P2O5、K2O、CaO、TiO2、Fe2O3、Rb、Sr、Y、Zr、Ba14个成分的含量,所得结果与化学分析结果相符,各组分测定33次的仪器RSD为0.10%~4.67%。
短句来源
     Experimental Study on Synthesis of 13X Zeolite Molecular Sieve from Potassium Feldspar Powder by Hydrothermal Reaction
     利用钾长石粉水热合成13X沸石分子筛的实验研究
短句来源
     An experimental synthesis of 13X zeolite molecular sieves from potassium feldspar powder with high concentration of Fe_2O_3
     利用高铁钾长石粉合成13X沸石分子筛的实验研究
短句来源
     At 200~250℃, on hydrothermal-dissolving potassium feldspar with CaO as additive, in the condition of different Ca/Al+Si atom ratios, liquid/solid weight ratios, reaction temperature and reaction time, the dissolving rate of K2O from potassium feldspar and phases transformation in the solid were investigated.
     以氧化钙为助剂,在200~250℃的水热反应条件下分解钾长石,研究了在不同的Ca/Al+Si、水固比、反应温度和反应时间下,钾长石中氧化钾的溶出率和固相的物相变化。
     The sample was prepared by the method of powder compressing. By the small size multichannel simultaneous X ray fluorescence spectrometer,the contens of SiO 2,Al 2O 3,CaO,MgO,Fe 2O 3 and K 2O,Na 2O in potassium feldspar can be measured.
     本文采用粉末压片法制样 ,用小型多道波长色散 X射线荧光光谱仪测定钾长石中的 Si O2 、Al2 O3、Ca O、Mg O、Fe2 O3、K2 O、Na2 O。
短句来源
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  k-feldspar
     It derives from temperature dependant cation exchange reaction between Na and K-bearing feldspar: K + + Na - feldspar(albite) = K - feldspar(adularia) + Na+.
     Na-K地球化学温标的依据是:在一定温度条件下,Na-feldspar(钠长石)+ K~+=K-feldspar(钾长石)+Na~+反应达完全平衡状态。
短句来源
     Discussion on K-Ar Dating of K-feldspar
     钾长石K-Ar定年若干问题的讨论
短句来源
     Experimental data for hydrogen isotope fractionations between albitic, K- feldspar, and rhyolitic melts and water vary systematically with pressure from 0.2 to 2 000 MPa.
     对 0.2~ 2 000 MPa条件下钠长石熔体、钾长石熔体以及 0.2~ 150 MPa条件下流纹岩熔体-水体系的氢同位素分馏实验数据进行了等压拟合 ,发现硅酸盐熔体与水之间的氢同位素分馏存在显著的压力效应。
短句来源
     The K-feldspar K-Ar dating of the main orebodies reveals that the hydrothermal activity related to porphyry copper continued to ~182.5±1.8 Ma, suggesting that the lifespan of the hydrothermal system lasted at least 40 Ma.
     主矿体钾长石K-Ar年龄显示热液活动持续到(182.5±1.8)Ma左右,说明与斑岩铜矿有关的热液系统寿命可达40Ma之久。
短句来源
     K-feldspar is higher in Or content,and assigned to K-sanidine showing Or>>Ab>> An.
     钾长石具有高Or含量,显示Or>>Ab>>An,属钾透长石。
短句来源
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  k feldspar
     the ration of K feldspar:K 2CO 3=1∶1 2;
     钾长石 :碳酸钾加入量 =1∶1 2 ;
短句来源
     K feldspars from auriferous samples are much richer in K-2O, indicating that gold mineralization might have been related to potassic hydrothermal fluids and intense K feldspar metasomatism.
     含金样品中的钾长石通常更富K2 O ,表明金的成矿作用与富钾的热液流体和碱质交代作用有关。
短句来源
     Gangue minerals include quartz, K feldspar, plagioclase, biotite, and hornblende. Ore grade averages 5.4×10 -6 Au, 0.24×10 -2 Mo and 0.40×10 -2 WO 3. Native gold is generally coarse grained and visible in hand specimens.
     脉石矿物有石英、钾长石、斜长石、黑云母和角闪石 ,其中辉钼矿Re Os同位素等时线年龄为 (2 6 0±10 )× 10 6a。
短句来源
     The results from X ray diffraction analysis show that in comparison to the conventional method there is no K feldspar pieces in the clay minerals (with clay mineral size <1?μm) separated from sedimentary rocks by the new method.
     用改进的岩样碎样法分离出的粘土矿物 ,经X射线衍射分析鉴定证实 ,在 <1 μm粒级时 ,粘土组分中不含有碎屑的钾长石 ,而常规法做不到这一点
短句来源
     At last the optimum operation conditions were confirmed as follow:250℃,phosphoric acid(65%):2 23ml,m(phosphorite):m(K feldspar)=1∶1.The physical composition of leaching mineral residues were analyzed by XRD and the reaction mechanism were dicussed.
     磷酸用量 (65 % ) :2 2 3ml; 配料比m (磷矿 ) :m(钾长石 ) =1∶1。
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  potash feldspar
It consists of quartz, pyrite, specularite, potash feldspar, sericite, carbonates and chlorite hosted in Proterozoic biotite-plagioclasee gneiss.
      
Evidence is given for a distinct intermediate region between the plagioclase and the potash feldspar.
      
The sillimanite-potash feldspar isograd in Western Maine, U.S.A.
      
In addition to the normal exsolution reactions responsible for most antiperthites, exsolution of potash feldspar in plagioclase may occur by a discontinuous mode of precipitation.
      
Determination of the character of oriented potash feldspar overgrowth on plagioclase crystals in igneous rocks
      
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  potassium feldspar
Two productive zones-the normal kaolin (kaolinite + quartz) zone and the alkaline kaolin (kaolinite + quartz + potassium feldspar and/or muscovite) zones-are recognized in the weathering profile of leucogranites of the Upper Ushkoty Pluton.
      
Iron-containing potassium feldspar crystals are prepared using the hydrothermal synthesis in an alkaline medium at temperatures ranging from 500 to 52°C.
      
The crystal structure of the synthetic potassium feldspar is refined [Ital Structures diffractometer, MoKαradiation, 1327 unique reflections with Fs>amp;gt;σ(F), anisotropic approximation, R(F) = 0.044].
      
According to this distribution, the iron-containing potassium feldspar is assigned to the low ferrialuminosilicate sanidine.
      
Potassium feldspar from vein systems and their aureoles at the epithermal asachin gold-silver deposit, Southern Kachatka
      
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  k-feldspar
According to geothermometric data and the composition of rock-forming minerals, the dolomite-calcite carbonatites were formed under K-feldspar-calcite, albite-calcite, and amphibole-dolomite-calcite facies conditions at 575-300°C.
      
Implication of laser probe40Ar/39Ar dating on K-feldspar from quartzveins in Xiaoqinling Gold Field, North China Craton
      
The P2O5 contents of feldspars in the Yashan F-rich and P-rich granite yield a maximum value of 0.93% (In albite) and a maximum average value of 0.65% (hereinafter weight percent) (in K-feldspar), and is generally between 0.10% and 0.35%.
      
The study shows that phosphorus could preferably enter the albite structure mainly by PAISi2 substitution relative to K-feldspar.
      
The40Ar/39 Ar plateau ages, K-Ar date of K-feldspar and other geochronologic information suggest that the exhumation rate of the ductile shear zone is about 0.18-1.12 mm/a in the range of 107-70 Ma, which is mainly influenced by tectonic extension.
      
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  k feldspar
This more subtle classification is based upon the presence or absence of sulphate and K feldspar and applied in the same way as for epithermal Au deposits elsewhere.
      
This assemblage may be stable at higher temperature in preference to nepheline-K feldspar.
      
Partial electron microprobe analyses of garnet, biotite and cordierite in sillimanite-K feldspar gneisses of the Brimfield Formation in south-central Massachusetts indicate that the compositions of these minerals are not constant in a thin section.
      
ago by mixing of high-18O Tuscan magmas containing large K feldspar crystals with potassic, undersaturated, low-18O magmas of the adjacent Roman Co-Magmatic Province.
      
Stability of the assemblage cordierite +K feldspar+quartz
      
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