1) calc alkline volcanic rock
钙碱性火山岩
1.
Present study of petrology,geochemistry,isotopic and geologic setting show calc alkline volcanic rocks may also result from extension and are not associated with the subduction of plate directly.
通过对钙碱性火山岩的岩石学、地球化学、同位素及其构造背景的研究表明,钙碱性火山岩的形成不一定仅限于板块俯冲过程,在不具备板块俯冲的其它构造环境下也能够形
2) high-K calc-alkaline volcanic rocks
高钾钙碱性火山岩
1.
Major and trace elements and Sr-Nd isotope data of adakitic high-K calc-alkaline volcanic rocks in Chibzhang Co area are presented, which yield ages of 35~40 Ma.
常量、微量及Sr、Nd同位素研究表明,藏北赤布张错地区分布的一套始新世(35~4 0Ma)高钾钙碱性火山岩具有C型埃达克岩的地球化学特征。
3) intermediate basic volcanic rock in alkalic volcanic rock series
钙碱性火山岩系中基性火山岩
4) alkalic volcanic rock
碱性火山岩
1.
The characteristics of petrogeochemistry showed that the alkalic volcanic rock belonged to patassium type which formed in .
喷发类型以裂隙式为主 ,有 4个喷发韵律 ,喷发环境为浅海 ;岩石地球化学特征显示 :其碱性火山岩属钾质型 ,形成于板内裂谷环境 ,与其伴生的辉长岩为同源岩浆成因 ,均来源于上地幔与下地壳的部分熔融产
5) high-K calc-alkaline series volcanic rocks
高钾钙碱岩系火山岩
1.
The characteristics of radiogenic Sr, Pb and unradiogenic Nd show that the Cenozoic high-K calc-alkaline series volcanic rocks from Zuerkengwula mountain area in Northern Tibetan Plateau have a relatively high value of ~(87)Sr/~(86)Sr, a relatively low value of ~(143)Nd/~(144)Nd and a relatively high Pb isotopic composition.
通过对藏北祖尔肯乌拉山地区新生代高钾钙碱岩系火山岩Sr,Nd,Pb同位素成分的系统测试分析表明,火山岩具有相对高的87Sr/86Sr和低的143Nd/144Nd值及高的Pb同位素组成特点,且Sr,Nd,Pb同位素比值变化范围很窄,反映了其具有同源岩浆的特点,并且经历了类似的地球化学动力学过程。
6) andesitic volcanism
钙碱性火山活动
补充资料:硼钙石,水化硼酸钙,硬硼钙石
CAS:12007-56-6
分子式:B4CaO7
中文名称:四硼酸钙;硼酸钙;硼钙石,水化硼酸钙,硬硼钙石
英文名称:Boron calcium oxide;Calcium borate;boric acid (h2-b4-o7), calcium salt ;boron calcium oxide (b4cao7);calcium tetraborate;colemanite
分子式:B4CaO7
中文名称:四硼酸钙;硼酸钙;硼钙石,水化硼酸钙,硬硼钙石
英文名称:Boron calcium oxide;Calcium borate;boric acid (h2-b4-o7), calcium salt ;boron calcium oxide (b4cao7);calcium tetraborate;colemanite
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