isotopic element 中文意思是什麼
isotopic element
解釋
同位元素-
On the basis of the study on the petrology, trace element, and isotopic geochemistry, the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting. one is the basanite - alkaline basalt - olivine tholeiite magma series, which are generated by partial melting from spinel iherzolite ; the other is nephelinite magma - alkaline picritic basalt magma, which are generated by partial melting of the garnet iherzolite
巖石化學、微量元素、同位素地球化學證據都表明，華北、華南地區的火山巖根據源巖和局部熔融程度的不同，可以分為兩個原生巖漿系列：一個是源巖為尖晶石二輝橄欖巖，隨著局部熔融程度的增加，形成的碧玄巖巖漿-堿性玄武巖巖漿-橄欖拉斑玄武巖巖漿；另一個是源巖為石榴石二輝橄欖巖，隨著局部熔融程度的增加形成的霞石巖巖漿-堿性苦橄玄武巖系列。 -
Based on the study of geologic characteristics, such as mineralogic assembladge, structural and textural features of granite of guidong granitic massif, and by using petrochemical, trace - element and isotopic data, and some petrochemical, trace - element and isotopic diagrams widely applied to the identification of geo tectonic environments, authors recognize that guidong granitic massif was emplaced in post - orogenic collision environment
摘要本文在研究貴東花崗巖巖體巖石礦物組合、結構構造等地質特徵的基礎上，運用花崗巖的巖石化學、微量元素和同位素等分析數據，採用目前廣泛應用的幾種巖石化學圖解、微量元素和同位素圖解等方法，判別了貴東巖體形成的構造環境?造山帶后碰撞型。 -
Given their oib - type trace element pattern and depleted sr - nd isotop ic composition, the datong alkali basalts are interpreted to be generated within the asthenospheric mantle but at a shallow depth compared to the yangyuan alkali basalts. the datong tholeiitic basalts exhibit low snd values ( 1 - 4 ). their sr - pb and nd - pb isotopic correlations are consistent with a mixing between the depleted mantle and emi - like component
大同地區第四紀時期同時產出堿性和拉斑玄武巖，堿性玄武巖也主要來自於軟流圈地幔，巖漿起源深度小於陽原樣品；拉斑玄武巖具有較低的nd （ nd = 1 - 4 ） ， pb - nd以及pb - sr同位素相關關系暗示其可能是dm和型富集地幔（ emi ）組分之間混合的結果，反映了軟流圈和巖石圈地幔之間的相互作用，巖漿起源較淺。
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