partial melting造句
例句與造句
- Paleoproterozoic ; wangjiahui granitoids ; partial melting ; recycling of islands arc and continent crustal materials ; tectonic transition ; wutai mountains
古元古代王家會(huì)花崗巖部分熔融島弧和陸殼物質(zhì)再循環(huán)構(gòu)造轉(zhuǎn)換五臺(tái)山 - Quantitative calculation of trace element content for the residue after partial melting suggests that intermediate - mafic granulites outcropped in the dabie orogen are not the residue of partial melting
殘留相微量元素定量計(jì)算結(jié)果表明，大別山現(xiàn)今出露的中基性麻粒巖不是部分熔融后形成的殘留體。 - By studying , the main conclusions have been achieved as follows : i . the volcanic rocks , as the result of the partial melting of enriched mantle , comprise calc - alkaline andesite and dacite and a few tholeiite
通過研究，得出以下主要認(rèn)識(shí)： 1 、火山巖為一套以鈣堿性安山巖為主，含少量拉斑玄武巖和英安巖。 - Although there was a partial melting of the reactor core at tmi - 2 , the radiological release was mainly confined within the containment building and the release to the environment is minimal and insignificant
雖然三哩島反應(yīng)堆部分堆芯已經(jīng)熔化，但輻射泄漏的范圍主要局限于安全殼廠房內(nèi)，對(duì)環(huán)境的影響極其輕微。 - Although there was a partial melting of the reactor core at tmi - 2 , the radiological release was mainly confined within the containment building and the release to the environment is minimal and insignificant
雖然三哩島反應(yīng)堆部分堆芯已經(jīng)熔化，但輻射泄漏的范圍主要局限于安全殼廠房內(nèi)，對(duì)環(huán)境的影響極其輕微。 - It's difficult to find partial melting in a sentence. 用partial melting造句挺難的
- Partial melting of the enriched lithospheric mantle owing to a raised geotherm caused by lithosphere thinning and following the afc process resulted in the formation of the quannan and tabei syenites in southern jiangxi
隨著拉張作用加強(qiáng)，受軟流圈物質(zhì)交代過的巖石圈地幔的小比例部分熔融形成的高鉀堿性巖漿經(jīng)afc作用形成堿性雜巖(全南和塔背巖體) 。 - The residue formed by partial melting of thickened crust due to anomalous heat supply by mantle superwelling at early cretaceous is possibly easy to detach from the crust because of its high density , leading to the remove of mountain root and large scale uplift of the orogen
早白堊世地幔超柱事件熱擾動(dòng)所引起的加厚地殼部分熔融后的殘留體可能由于比重較大而拆離進(jìn)入地幔，從而發(fā)生去山根作用和造山帶的大面積隆起。 - The mineral chemistry amd elemental variations in whole rocks can be ascribed to results of partial melting of various degrees . according to the fractional melting model , the partial melting degree for the iherzolites is less than 5 percent , and about 7 to 20 percent for harzburgites
全巖及礦物的主量元素的成分變化主要受部分熔融程度的控制，分異熔融模型獲得的二輝橄欖巖的部分熔融程度5 ，方輝橄欖巖部分熔融程度在7 - 20之間。 - Secondly , based on the microbeam analytical technique , on the one hand , through investigating the characteristic of major elements in the mantle minerals the author acquired the static information from mantle ; on the other hand , through multi - point analysis of a part of the minerals from mantle , the auther got dynamic information from mantle . finally , generalizating the fruits of this study and predecessors , the autor holds that the constituents of lithospheric mantle possibly includes spinel lherzolites , clinopyroxenites , websterite , dunite , harzburgites , garnet lherzite , phlogopite lherzite , eclogites , clinopyroxene megacrysts ; compared with east china and north china platform , the research field mantle shows the characteristics of higher degree of partial melting processes and more depleted mantle ; the . upper mantle beneath north hetian area is heterogeneous , with a tendency of deficit in a12o3 and lree from kaliyang in west hetian to the river basin of kalakshi river and yulongkashi river ; the subduction of the crust beneath north hetian has ever occurred in geological history and caused the mixing of mantle - crust ; the depth of the origination of basaltic magmas beneath north hetian exceeds 73km ; the thickness of the lithosphere beneath the research area amounts to 204 . 9km ; the mantle beneath north hetian has geological condtions for forming diamond deposits
最后，綜合本區(qū)幔源礦物和地幔巖石的特征以及地球物理資料，得出如下結(jié)論：本區(qū)上地幔的物質(zhì)組成有尖晶石二輝橄欖巖、二輝巖、單斜輝石巖、純橄欖巖、方輝橄欖巖、石榴石二輝橄欖巖、金云母二輝橄欖巖、榴輝巖；與中國東部以及華北地臺(tái)上地幔相比，研究區(qū)上地幔具有富集主元素中相容元素和虧損其中的不相容元素的特征，局部熔融程度較高；上地幔存在橫向和縱向的不均一性，從西部的克里陽到喀拉喀什河和玉龍喀什河流域， al和lree富集程度呈下降趨勢，不同來源的相同礦物中主元素的含量差異較大；地質(zhì)歷史時(shí)期這里可能發(fā)生過地殼俯沖并產(chǎn)生殼?；旌献饔茫恍鋷r漿的起源深度73km ；從幔源重砂礦物的溫壓估算結(jié)果，可以推斷出巖石圈厚度可達(dá)204 . 9km ；綜合巖石圈物質(zhì)組成特征、巖石圈熱狀態(tài)、地幔溫壓狀態(tài)、氧逸度以及幔源巖石和幔源礦物的化學(xué)成分，認(rèn)為研究區(qū)具備了金剛石成礦地幔地質(zhì)條件。 - The mafic dikes also formed by the partial melting of enriched mantle , include gabbro , diabase ( distributing mainly in luxi ) and lamprophyres ( camptovogesite , odinite and hornblende lamprophyres ) ( mainly in ludong ) . for all the rocks , crustal contamination was absent when magma emplaced . 2
基性脈巖主要包括輝長巖、輝綠巖(主要分布在魯西地區(qū))和煌斑巖(以斜閃煌斑巖為主，同時(shí)含部分拉輝煌斑巖和角閃煌斑巖) (主要分布在魯東地區(qū)) ，都為富集巖石圈地幔部分熔融的產(chǎn)物。 - Ultramafic rock fragments , which almost is altered to ophite , distributed in structural zone and displayed structural lens . so far , 9 fragments were discovered and mapped in nujinshan and bujing area ultramafic rock can be divided two kinds according to it ' s geochemical characteristics . one can be correlated with metaperidotite , which represented residual part that primary pyrolite underwent moderate partial melting , from some representative ophiolite melange in the world
按超鎂鐵巖類的地球化學(xué)特征可將其劃分為兩類：一類具有較高而穩(wěn)定的mgo 、較低的al _ 2o _ 3 、極低的cao ， m f值為8 . 0 ? 8 . 4 ，按標(biāo)準(zhǔn)礦物組合進(jìn)行分類可定為方輝橄欖巖，且均為fa _ ( 100 ) 、 en _ ( 100 )的鎂質(zhì)端元組分；可與世界上一些典型的蛇綠巖套中變質(zhì)橄欖巖進(jìn)行對(duì)比，代表了原始地幔中等部分熔融作用后殘余物。 - 2 . 6 2 . 7ga , these granitoids are most likely to be derived from the partial melting of hybrids both 2 . 6ga metavolcanic materials in archean wutaishan magmatic arc and older continent crustal materials under lower than 1 . 2gpa . petrological and geochemical characteristics of wangjiahui granitoid intrusion suggest that is probably fored under post - collisional tectonic background
2 . 1ga在- 3 . 82 - 2 . 80范圍，表明王家會(huì)古元古代花崗巖最有可能形成于大約2 . 6ga五臺(tái)山大洋島弧火山巖物質(zhì)和更老的陸殼物質(zhì)在 - The southern hainan mafic dykes are strongly enriched in lile with high nb / ta ratios , indicating a magma source reconstructed by silicic - melt through partial melting of ancient subducted slides . however , the northern hainan mafic dykes with chondritic nb / ta ratio should be derived from the fiuid - metasomatized mantle related to ancient subduction zone
瓊南基性巖脈強(qiáng)烈富k _ 2o等lile和具有較高nb ta比值，其地幔源區(qū)應(yīng)受到了古俯沖板片部分熔融形成的硅質(zhì)熔體的改造；而瓊中基性巖脈的nb ta比值接近于球粒隕石和morb值，應(yīng)為古俯沖帶含水流體交代的地幔源區(qū)的產(chǎn)物。 - The alkaline basalts in southern hunan are suggested to have formed by small degrees of decompression melting of the asthenosphere mantle during the initial extension . the transitional ( the chebu gabbro ) and tholeiitic basaltic magmas were generated by relatively larger degrees of partial melting of the mantle
在裂谷初期，軟流圈地幔的小比例部分熔融形成堿性玄武巖(湘南) ，在裂谷拉張作用比較強(qiáng)、地幔部分熔融比例比較大時(shí)形成贛南和湘南的過渡型(車步輝長巖)及拉斑質(zhì)玄武巖。 - The mafic rocks have high ( 87sr / 86sr ) j ( 0 . 7046 - 0 . 7077 ) and 207pb / 204pb ( 15 . 47 - 15 . 67 ) , but relatively low in ( 143nd / 144nd ) i ( 0 . 5125 - 0 . 5127 ) and 206pb / 204pb ( 18 . 26 - 18 . 52 ) . the negative correlation between 143nd / 144nd and 206pb / 204pb and the positive relationship between 87sr / 86sr - 206pb / 204pb suggest a mixing of a depleted mantle source and an em2 component in the study area . calculation reveals that the maopin - shaianjiao mafic rocks are formed by 5 - 15 % degree of partial melting of an lree - riched spinel iherzolite
模擬計(jì)算表明，該基性巖墻群是尖晶石二輝橄欖巖地幔5 - 15部分熔融的產(chǎn)物；微量元素配分模式及理論模擬表明茅坪?曬鞍角基性巖體的地幔源區(qū)在熔融前曾受到1俯沖沉積物熔體的源區(qū)混染和5流體交代作用。
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