phenocryst

phenocryst

1. The two series have different types of phenocryst, chemical composition, trace element pattern and ratio of isotopic element, but they show similar REE patterns.

两者在斑晶类型、主元素和微量元素丰度和同位素比值等方面都存在区别,但显示了相同的稀土元素分配型式。

2. In order to determine the time sequence of recent eruption in Tianchi volcano, the TL thermal-stability has been investigated for pumice and sanidine phenocryst within the volcanics.

为厘定天池火山近代喷发的时序,对碱流岩中的浮岩和透长石斑晶进行了热释光(TL)信号热稳定性研究。

3. The chalcopyrite crystals in quartz phenocryst fluid inclusions indicate the high concentration of ore metals in the inclusions rather than the beginning of copper mineralization.

冈底斯成矿带内斑岩铜矿的成矿始于岩浆期后高温阶段，随后的高_中温热液阶段是流体大量沉淀矿质的重要时期。

4. Three different kinds of clinopyroxenes were found in ankaramite and basalts: big phenocryst, small phenocrysts and microcrystals in groundmass respectively.

北塔山组富辉橄玄岩和玄武岩中存在着三种类型的单斜辉石：大斑晶辉石、小斑晶辉石和基质辉石。

5. Theearly stage comprises fine grain adamellite and medium coarse grained porphyritic adamel-lite,while the late stage, it consists of medium grain adamellite with huge phenocryst.

早期由细粒二长花岗岩、含斑中粗粒二长花岗岩构成； 晚期由斑状中粗粒二长花岗岩、巨斑状中粒二长花岗岩构成。

6. 4.Theearly stage comprises fine grain adamellite and medium coarse grained porphyritic adamel-lite,while the late stage, it consists of medium grain adamellite with huge phenocryst.

早期由细粒二长花岗岩、含斑中粗粒二长花岗岩构成；晚期由斑状中粗粒二长花岗岩、巨斑状中粒二长花岗岩构成。

7. GENETIC RELATION BETWEEN DEEP-SEATED ALKALI-RICH HYDROTHERMAL FLUIDS AND ORE-BEARING PORPHYRIES OF PORPHYRY COPPER DEPOSITS EVIDENCE FROM FLUID INCLUSIONS AND PHENOCRYST TEXTURES

深源富碱硅热流体与斑岩铜矿含矿斑岩体的成因联系及流体包裹体、斑晶结构证据

8. rapakivi -textured K -feldspar phenocryst

环斑结构钾长石似斑晶

9. pyroxene phenocryst

辉石斑晶

10. Crypto-explosive breccia structures were well developed.The diameter of prisms is in proportion to the size of micro-fabric phenocryst.

通过对柱状节理流纹岩成分及结构构造的研究，表明本区的流纹岩柱体直径与其对应的显微组构斑晶大小成正比例相关。