Isotopic geochemistry of Laoshan MIAROLITIC alkaline granite 青岛崂山晶洞碱性花岗岩同位素地球化学研究
The coexisting of I-and A-types of granites has great signifcance in the study of the alkaline granite zone in the coastal area of Zhejiang-Fujian Provinces. 这种空间上的复合,在浙闽沿海碱性花岗岩带中具有普遍的意义。
Meteoric hydrothermal water-rock interreaction and magmatic degassing of open system have been both responsible for the~ ( 18) O and D depletions of miarolitic alkaline granite. 大气降水热液-岩石相互作用和岩浆开放体系去气作用是造成晶洞碱性花岗岩~(18)O和D贫化的重要原因。
The outer circle consists of alkaline gabbro, quartz syenite and alkali-feldspar granite. The inner circle consists of quartz diorite-granodiorite-adamellite-moyite of calc-alkaline series. 外环为碱性辉长岩、石英正长岩、碱长花岗岩,内环为钙碱系列的石英闪长岩-花岗闪长岩-二长花岗岩-钾长花岗岩。
Qingtian composite body, in Zhejiang Province, is comprised of the calc-alkaline granite and the alkaline granite, which formed in Late Yanshan period. 浙江青田复式岩体由燕山晚期钙碱性花岗岩和碱性花岗岩复合而成。
2, this gold deposits genetically related with high potassium alkaline calcium to weakly alkaline granite; 与高钾的钙碱性至弱碱性花岗岩类有成因联系。
Alkaline calcium invade-rock zone at the SW fringe of Altun massif composed by 10 granites of different size, mainly including quartz diorite, tonalite, granodiorite, monzonitic granite. 阿尔金地块南西缘钙碱性侵入岩带由余个大小不等的花岗岩体组成,其岩石类型主10要有石英闪长岩、英云闪长岩、花岗闪长岩、二长花岗岩。
Based on field work and the research on petrochemical, trace and rare earth elements, isotopic features, the cafe-alkaline granite belongs to I-type granite, and the alkaline granite is typical A-type granite. 野外地质、岩石化学、微量元素、稀土元素及同位素等资料证实钙碱性花岗岩属Ⅰ型花岗岩,碱性花岗岩属典型的A型花岗岩,是浙闽沿海碱性花岗岩带中新发现的一个成员。
The alkaline granitoid including arfvedsonite granite and assemblage moyite; 碱性花岗岩类,包括钠铁闪石花岗岩以及孪生的钾长花岗岩类;
The δ Eu value of normal type quartz of REE distribution curve is close to the δ Eu value of the crust type and alkaline granite. 稀土配分曲线正常型石英脉的δEu值接近壳型和碱性花岗岩δEu值。