partial melting造句
例句與造句
- Such features can be ascribed to lower degrees of partial melting and greater melting depths . in particular , the decoupling between the lowest nag and highest tig tends to indicate residual jadeite during melting process so that na behaved as a moderately compatible element to lower the naao concentration in these rocks . this is consistent with the ree patterns in the high - ti diabases that have the highest ( gd / yb ) cn ratios than other two groups , which suggest a more important role of residual garnet in generation of the primary magmas
運(yùn)用mgo = 8進(jìn)行標(biāo)準(zhǔn)化，結(jié)合巖石成因理論討論了三大系列輝綠巖的形成相對(duì)深度和熔融比例，其中高ti系列的原始巖漿形成深度大，熔融比例小，源區(qū)相對(duì)最為富集易熔組分；低ti系列的熔融深度最淺，比例最大，源區(qū)相對(duì)虧損易熔組分；過渡ti系列則介于前兩大系列之間。 - During diagenetic process , there may exist the fractional crystallization of clino - pyroxene , plagioclase , olivine and ti - fe oxide , and the accumulation of olivine . the alkalic - ultramafic dikes formed by low degree partial melting ( 3 . 4 % ) of enriched mantle , consist of single olivine pyroxenolite , the dominating olivine fractionation is evident
成因上為富集地幔部分熔融作用的結(jié)果，但在成巖過程中也可能存在單斜輝石、斜長石、橄欖石和ti - fe氧化物等礦物的分離結(jié)晶作用。 - The pges abundance patterns of residual mantle rock with a peleo - subduction background is characterized by pd , pt depletion and ir , ru relatively enrichment , while the basalt and basic dyke by the processing of partial melt in the same background take an opposite feature of pd , pt enrichment and ir , ru depletion . the existence of fluid in the subduction zone increases the degree of partial melt on the one hand , and on the other , activates the activity of pd , pt compare to ir , ru , and thus reduces the pd ir and pt ru in residual mantle rock . the pges patterns for basalt and basic dyke from two carboniferous volcano zones to south qoltag and north turpan - hami basin , xinjing uigur autonomous region , take a shape of gentle positive inclined curve with lower pt and pd differentiation and lower pges . all these features are obviously different from that of basic dyke and basalt from typical ophiolite and therefore the author believe that their fluid - rich paleo - subduction zone environment can be ruled out
古俯沖帶背景下的殘余地幔巖的pges配分以pd , pt明顯虧損和ir , ru相對(duì)富集為特征，而部分熔融產(chǎn)物的玄武巖和基性巖脈則呈現(xiàn)相反的ir , ru明顯虧損和pd , pt相對(duì)富集特征。俯沖帶中流體的參與一方面增加了部分熔融程度，有利于pd , pt從原始地幔進(jìn)入熔融相另一方面，流體的作用使得pd , pt相對(duì)于ir , ru遷移活動(dòng)性效率提高，造成地幔巖中 - A ree partition simulation suggests that the tianzhushan intermediate rocks can be generated by partial melting , in coupling with fractional crystallization , of dioritic gneiss which is similar in chemical compositions to the mafic rocks in the lower crust in north dabie ; partial melting of intermediate grey gneiss which is similar in chemical compositions to the middle crust in north dabie can generate the tianzhushan felsic rocks
Ree配分的定量模擬計(jì)算結(jié)果表明，與基性下地殼相似的北大別基性閃長質(zhì)片麻巖部分熔融并經(jīng)過結(jié)晶分異能夠形成與天柱山中性巖類似的稀土元素組成，而與中性地殼相似的北大別中性灰色片麻巖部分熔融能夠形成與天柱山花崗巖類似的稀土元素組成。 - 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(xué)、微量元素、同位素地球化學(xué)證據(jù)都表明，華北、華南地區(qū)的火山巖根據(jù)源巖和局部熔融程度的不同，可以分為兩個(gè)原生巖漿系列：一個(gè)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(gè)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。 - It's difficult to find partial melting in a sentence. 用partial melting造句挺難的
- 2 . early jurassic mafic volcanic rocks in yanshan area were derived from decompression melting of an ancient continental lithospheric mantle , which had been previously metasomatized by subducted slabs during the closure of paleo - asian ocean ; the mantle source of late jurassic mafic volcanic rocks were contributed by dominant emi and insignificant subducted metasomatic components ; early cretaceous mafic volcanic rocks were derived from decompression melting of an ancient continental lithospheric mantle ( emi ) . with regard to the basaltic lavas , the felsic rocks resulted from partial melting of continental crust , which closely related to basaltic underplating
2燕山地區(qū)早侏羅世中基性火山巖來自于早期俯沖交代的古老巖石圈地幔部分熔融作用，俯沖交代作用可能與早期古亞洲洋閉合事件有關(guān)；晚侏羅世中基性火山巖更多來自于類似于emi型地幔源區(qū)的部分熔融作用，俯沖交代成分貢獻(xiàn)很弱；早白堊世基性火山巖則來自于emi型地幔源區(qū)的部分熔融作用。 - Amore 2001 has successfully investigated the gakkel ridge and arctic ocean in vicinity of its geological and geophysical nature , as well as the nature of sea ice and biology in this area . the preliminary onboard petrology and bathymetry results show that the mantle beneath the gakkel ridge with low temperature has only encountered very low degree partial melting during the spreading and there is no any direct relationship between the crust nature and the spreading rate along the gakkel ridge in any simple petrologic way . mantle temperature and fracture zone density also play a major role on the crust nature , besides spreading rate
對(duì)所取得資料的初步研究表明gakkel洋中脊之下的地幔僅經(jīng)受了較低程度的部分熔融，具有較低的溫度。 gakkel洋中脊處的地殼性質(zhì)和巖漿活動(dòng)與擴(kuò)張速率之間不存在任何直接的巖石學(xué)相關(guān)性，擴(kuò)張而導(dǎo)致的巖石圈頂部的冷卻并不是決定洋脊處地殼性質(zhì)的最重要因素。地幔溫度和斷裂帶的存在與否及其密度對(duì)地殼性質(zhì)具有重要的影響意義。 - Ree partition simulation suggests that the tianzhushan intermediate rocks can be generated by partial melting , in coupling with fractional crystallization , of dioritic gneiss which is similar in chemical compositions to the mafic rocks in the lower crust in north dabie ; partial melting of intermediate grey gneiss which is similar in chemical compositions to the middle crust in north dabie can generate the tianzhushan felsic rocks
Ree配分的定量模擬計(jì)算結(jié)果表明，與基性下地殼相似的北大別基性閃長質(zhì)片麻巖部分熔融并經(jīng)過結(jié)晶分異能夠形成與天柱山中性巖類似的稀土元素組成，而與中性地殼相似的北大別中性灰色片麻巖部分熔融能夠形成與天柱山花崗巖類似的稀土元素組成。
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