1.It is because the mantle rock is thicker, cracks are well developed, contents of P,Sr,K,Na and ∑REE are more in the biotite-plagioclase gneiss than in the other rocks and K occurred mainly in other rocks that the Chinese date in good quality are principally distributed in biotite-plagioclase gneiss.
研究认为 :品质优良的大枣主要产在黑云斜长片麻岩分布区 ,是由于黑云斜长片麻岩较其他类型的岩石风化层厚 ,裂隙发育 ,P、Sr、稀土元素含量高 ,K含量高并以缓效态赋存在黑云母中 ,较其他岩石类型中的K易被植物吸收 ;
2.The leucogranites have apparently twoperiods: earlier two mica leucogranites, the mineral assemblages are biotite+muscovite±garnet(quartz+plagioclase+alkaline-feldspar); the later tourmaline leucogranites, the mineralassemblages are muscovite+tourmaline±biotite±garnet(quartz+plagioclase+alkaline-feldspar).
岩体明显分两期侵入,早期二云母淡色花岗岩,矿物组合为黑云母+白云母±石榴石(石英+斜长石+碱性长石),晚期电气石淡色花岗岩,矿物组合为白云母+电气石±黑云母±石榴石(石英+斜长石+碱性长石)。
3.The landslide and debris flow based on plagioclase coincidently locate in ringed mountains.
以斜岩作为地质基础的滑坡和泥石流等地质灾害恰恰分布在环形山脉中。
4.A NEW APPROACH TO DETERMINING THE AGE OF HOST OF NICKEL ORE——Age Determination of plagioclase by Ar~(38) Dilution Method
解决镍矿成矿母岩时代的新途径—斜长石的Ar~(38)稀释法年龄测定
5.The main characters of the thermal fluid activity are recognized as follow: many types and stages of veins are widely developed; vitrinite reflectivity of different areas varies apparently with the depth; there was a high temperature field during the formation of the thermal fluid, meanwhile, the volcaniclastic rocks were modificated by the thermal fluid activity, for example, sericitization of plagioclase, chloritization of volcanic detritus in andesitic detris tuff; in the tufaceous mud, the thermal fluid activity accelerates "maturating" of the organic carbon by heating; and the trace elements show an anomaly in the wall rocks.
同时，受热流体活动的影响，热流体对火山碎屑岩具有一定改造作用，如在安山质岩屑凝灰岩中，斜长石绢云母化、火山岩岩屑绿泥石化明显；在凝灰质泥岩中，热流体对围岩中有机碳具有明显的“催熟”加热作用，微量元素则出现异常现象。
6.Plagioclase widely spreads across the earth surface, and causes relevant geological movements such as landslide and debris flow, which become one of most broad and severe geological catastrophes.
本文采用比较行星学的方法，认为陨击作为太阳系普遍的地质过程，地球跟太阳系其他类地行星受到陨击的情况是相类似的。
7.The zircons (sample No. F103) from biotite plagioclase gneiss of the Lower Fuping Group yield an up intercept age of 2 484 Ma and a concordia age of 2 332 Ma, interpreted as crystallization and anatexis timing, respectively.
结果前者得到 1) ( 2 4 84± 37)Ma不一致线上交点年龄 ,被认为是阜平片麻岩深成结晶年龄 ;
8.An igneous rock composed chiefly of plagioclase and orthoclase, with small amounts of other minerals.
二长岩一种主要由斜长石和正长石组成的火成岩，还含有少量其它矿物
9.Any of various dark, granite-textured, crystalline rocks rich in plagioclase and having little quartz.
闪长岩一种黑色花岗岩的纹理的结晶质火岩石，富有斜长石，含有少量石英
10.Chemical reaction of plagioclase +biotite +quartz mineral mixture with 1.0 mol/L NaCl or 0.5 mol/L NaCl +0.5 mol/L NaHCO3 solution at 450～250 ℃and 50 MPa for 7 d shows that after reaction NaCl solution becomes more acidic, while NaCl +NaHCO3 solution tends to be more neutralization, and that the concentration of K, Ca, Mg, Fe and Au in the solution changes.
采用(斜长石+黑云母+石英)这三种单矿物组合与1mol/LNaCl或0.5mol/LNaCl+0.5mol/LNaHCO3溶液在450～250℃和50MPa条件下反应7d。 实验表明,反应后流体pH值发生了变化,NaCl介质向酸性变化,NaCl+NaHCO3介质向中性转化。
