evolution n. 1.發(fā)展,發(fā)育;開展。 2.(氣體等的)放出;散出 ...
magma n. (pl. magmata , magmas) (礦物,有機物等的)稀糊狀混合物;【地質(zhì)學(xué);地理學(xué)】巖漿;稠液;【藥學(xué)】乳漿劑。
evolution n. 1.發(fā)展,發(fā)育;開展。 2.(氣體等的)放出;散出,放出物,散出物。 3.發(fā)生;演變;【生物學(xué)】演化,進化;進化論(opp. creationism)。 4.【生物學(xué)】種族發(fā)生,系統(tǒng)發(fā)育;個體發(fā)生;個體發(fā)育。 5.【天文學(xué)】(天體)形成。 6.【數(shù)學(xué)】開方。 7.〔軍〕按計劃行動,位置變換。 8.(跳舞等的)規(guī)定動作。 an evolution unit 〔軍〕機動單位。 the theory [doctrine] of evolution 進化論。 -al, -ary adj. 發(fā)展的;進化(論)的;展開的。 n. -ism 進化論,進化主義 (opp. creationism)。
Using the tracer ability of petro - geochemistry , the paper discusses on source characteristics and magma evolution of the high - mg volcanic rocks 利用巖石地球化學(xué)的可示蹤性,研究了高鎂火山巖漿的源區(qū)特征、巖漿演化。
Finally , a review is made on the genetic relationships between mineralization and magma evolution and the associated characteristic of ore systems 文中還介紹了層狀巖體中典型礦床的成礦作用與巖漿演化過程的成因聯(lián)系。
There develops a suit of meta - spilite baschtaunite system volcanic rocks in the south of lushan mountain . lithology combination reflects the regularity of magma evolution from basic to acid 廬山南麓發(fā)育一套變細碧-石英角斑巖系火山巖,巖性組合從早到晚反映了由基性到酸性的巖漿演化規(guī)律。
Abstract : there develops a suit of meta - spilite baschtaunite system volcanic rocks in the south of lushan mountain . lithology combination reflects the regularity of magma evolution from basic to acid 文摘:廬山南麓發(fā)育一套變細碧-石英角斑巖系火山巖,巖性組合從早到晚反映了由基性到酸性的巖漿演化規(guī)律。
This paper mainly summarizes the tectonic setting , common features , nature of the parental magmas , genesis of rhythmic layers of various types of layered intrusions , and the important roles that magma mixing and crustal contamination play in magma evolution 文中主要總結(jié)了不同類型層狀巖體形成的構(gòu)造背景、基本特征、母巖漿特征和韻律層理成因,以及巖漿混合和地殼混染在巖漿演化過程中起到的重要作用。
During the yanshanian phrase , the area is in the condition of contractional background , with multi - staged tectonic reversion . 5 . through studying the origin of volcanic rocks and the characteristics of magma evolution , it concludes that there exist 3 originated areas of magma - from mantle , crust , and mantle - crust exchange . the basic magma of nandaling volcanic rocks of early jurassic is derived from upper mantle ; the magma of tiaojishan volcanic rocks of mid jurassic is formed in the contractional tectonic setting , and derived from the transition zone of crust and mantle interaction ; the acid magma of l 5 、通過巖石化學(xué)、微量元素、稀土元素的研究,探討了不同級別節(jié)律的火山巖成因、巖漿演化等特征,認為本區(qū)燕山期火山巖有三個巖漿源區(qū),即地幔源、地殼源和殼?;煸?,早侏羅世的南大嶺旋回的基性巖漿,起源于上地幔;中侏羅世髫髻山旋回火山巖是在相對擠壓環(huán)境中,巖漿起源于殼幔過渡帶;晚侏羅世無負eu異常的酸性巖漿來源于下地殼的古老結(jié)晶基底的局部熔融,有負eu異常的酸性巖漿來源于上地殼的局部熔融;早白堊世火山巖基性巖漿起源于上地幔,中性巖漿起源于下地殼底部的殼幔過渡帶。
The paper based on synthesize domestic and foreign ' s study achievement about basalt , systematical review basalt research history , present condition about basalt formation contributing factor and it ' s magma source area quality , uses the basalt to distinguish the earth ' s mantle type , the connection basaltic magma evolution and continent dynamics , and uses the basalt to distinguish tectonic environment 系統(tǒng)地綜述了玄武巖的成因和巖漿源區(qū)性質(zhì)、利用玄武巖判別地幔類型、玄武質(zhì)巖漿的演化與大陸動力學(xué)關(guān)系,以及判別構(gòu)造環(huán)境等方面研究的現(xiàn)狀。