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- A light-colored igneous rock consisting essentially of alkali feldspar. 粗面岩一种浅色火成岩,主要由碱长石构成
- The Penshan granitic body is a calc-alkaline pluton composed of muscovite alkali granite, two-mica alkali feldspar granite and biotite adamellite. 彭山岩体是由白云母碱长花岗岩、云母碱长花岗岩和黑云母二长花岗岩组成的钙碱性花岗复式岩体。
- They are mostly granite, granodiorite, quartz syenite and monzodiorite.Different types of granitic rocks are exposed in different tectonic units. 岩石类型主要为花岗岩、花岗闪长岩、石英正长岩及二长闪长岩。
- The alkali feldspar crystallized from the P-rich peraluminous magmatic system is often enriched in phosphorous. 高度演化的富P过铝质岩浆体系,具有鲜明的、不同于其他体系的地球化学行为。
- Fayalite-bearing quartz syenite could represent the early fractional stage initial granitic magma derived from Archean protolith in a deeper and reductive environment. 含铁橄榄石石英正长岩,代表了岩浆分离结晶初期还原条件下,太古代母岩派生的初始岩浆组成。
- The Penshan granitic body is a calc-alkaline pluton composed of muscovite alkali granite,two-mica alkali feldspar granite and biotite adamellite. 彭山岩体是由白云母碱长花岗岩、二云母碱长花岗岩和黑云母二长花岗岩组成的钙碱性花岗复式岩体。
- The quartz syenite porphyry body of Yanshan Period is the wall of lode.It is also the major metallization matrix rock.In the periphery of the area,there is the resemble and the same me... 在其外围有多处与其相似或相同的成矿地质背景,并有金矿化显示,表明在该区寻找同类型金矿床具有良好的找矿前景。
- The reservoirs have the medium texture maturity and lower maturity composition.Reservoir lithology is mainly feldspathic litharenite, feldspar quartz sandstone, lithic feldspar sandstone. 研究区须家河储层岩石类型呈现结构成熟度中等,成份成熟度较低的特点,以岩屑长石砂岩、长石石英砂岩和长石岩屑砂岩为主;
- There exist such types of rocks as syenite, quartz syenite, aegirine-augite syenite, nepheline syenites, monzonite, quartz monzonites, alkaline gabbro, alkaline-feldspar granites and alkaline granite. 本文总结了它们的空间分布、形成时代、产状、岩石组合和岩石化学特徵;
- Keywords gold deposit;alkali feldspar;K feldspar;alteration;Hebei; 金矿;碱性长石;钾长石;蚀变作用;河北;
- Abstract :Orthogneisses in the Wulian area are mainly syenogranitic gneiss and less commonly quartz syenitic gneiss, showing a mildly alkaline trend. 提要: 五莲杂岩中的正片麻岩主要为正长花岗质片麻岩,少数石英正长质片麻岩,具有适度碱性的演化趋势。
- a light-colored igneous rock consisting essentially of alkali feldspar 一种浅色火成岩,主要由碱长石构成
- Keywords south-east of Hubei;Tonglushan;Cu-Fe deposit;quartz syenite diorite porphyrite;magmatic evolution;lithogeochemical;microelement; 鄂东南;铜绿山;铜铁矿床;石英正长闪长玢岩;岩浆演化;岩石化学;微量元素;
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- EPR STUDY ON EXCHANGE KINETICS OF FE~(3+) OVER THE TETRAHEDRAL POSITIONS IN ALKALI FELDSPAR 碱性长石中Fe~(3+)在四面体位置间交换动力学的EPR研究
- This sandstone consists of quartz primarily and feldspar secondly. 这种砂岩的成份以石英为主,长石次之。
- Clinoptilolite (80-85%),with a small amount of quartz,feldspar etc. 斜发沸石(80-85%25),少量石英,长石等
- A-type quartz syenitic porphyritic dyke A型石英正长斑岩
- alkali feldspar 碱性长石
- Using nepheline syenite as a substitute for feldspar,the batch mixtures were prepared on a composition of float glass and are melted into glasses. 以霞石正长岩取代长石,按照浮法玻璃的成份制备配合料并熔制玻璃。