These striations occur mainly in aplite dikes that tend to be more resistant to weathering than the granodiorite .
这些条纹主要产生在比花岗闪长岩往往更耐风化的细晶岩沟渠里。
The dome is formed of cathedral peak granodiorite , which is easily identified by its large orthoclase phenocrysts .
穹顶是由教堂顶形的花岗闪长岩所组成，这可很容易地以其大型的正长石斑晶来加以确定。
La-icp-ms zircon u-pb dating for gneissic garnet-bearing biotite granodiorite in the yadong area , southern tibet , china and its geological significance .
