碱性花岗岩 meaning in English
alkali granite
alkali granti
alkaline granite
Examples
- According to the constructive principles of these diagrams , the following aspects must be thought carefully : the rock types to be studied must be the same or nearly the same as those that can be discriminated by the diagram ; to avoid mixed or incorrect signals that could be produced , two or more such diagrams shall have to be jointly used ; for special rock types , such as a - type granites or potassic igneous rocks , special discriminative diagrams have to be determined and selected respectively ; the samples to be studied can not be altered ; in general , the diagrams must be used carefully with archean samples ; the petrotectonic assemblage or an expert system are recommended to be used together with the discrimination diagrams
强调指出：所采集的样品必须新鲜（无蚀变或极弱蚀变） 、非堆晶的岩石；选择的判别图解必须与判别的岩石类型相一致，即对花岗岩类要用花岗岩的判别图解，不能用玄武岩的判别图解；对特殊类型岩石要选择专门用于该类型岩石的判别图解，如碱性花岗岩，钾质火成岩；要应用多种图解综合判断；不能用单个样品，而应作多个样品分析；要注意所选择判别图解的特别说明等。 - ( 4 ) based on the analysis and summary of typical orogenic belt in china , advancing the marker to distinguish the exist of delamination occurred in orogenic belt , especially giving up some new marker such as ring ultrabasic - basic - medium acid rock body , local bimodal continental rifting volcanic activity ; rapakivi granite , etc . ( 5 ) collating the main stages of south part of sanjiang orogenic belts evolution after the close of old nanchangjiang ocean , i
较全面地提出了判别造山带成熟拆沉作用发生的标志，特别是根据对我国典型造山带的总结分析，提出了一些新的标志，如环状超基性一基性一中酸性杂岩体;局部双峰式大陆裂谷型火山活动;二长花岗岩、碱性花岗岩和奥长环斑花岗岩;地壳局部短暂下沉;等等。 - The qiongzhong and danxian granites are belong to the kcg - type ( k - rich calc - alkaline ) granitoids according to the tectonic nomenclature by barbarin ( 1999 ) . these foliated kcg - type granites with original orientated structure are the results generated in a changing geodynamic orogenic environment with alternating compressional to extensional stress field . this suggests that hainan island has been a part of south china since latest permian , and been major in extrusion environment of the tethys tectonic system
根据barbarin ( 1999 )分类，琼中和儋县岩基花岗岩属于高k及含钾长石斑晶的钙碱性花岗岩，同时它们具有原生定向构造，是挤压?松弛?挤压的构造演化过程的产物，表明海南岛从二叠纪末期开始已经是华南大陆的一部分，主要受到了特提斯构造域的影响。