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basaltic magma中文什么意思

發(fā)音:   用"basaltic magma"造句
  • 玄武巖漿
  • 玄武質(zhì)巖漿
  • basaltic:    adj. (含)玄武巖的,似玄武巖的。
  • magma:    n. (pl. magmata , magmas) (礦 ...
  • alkali basaltic magma:    堿性玄武巖漿
  • calcalkaline basaltic magma:    鈣堿性玄武巖漿
  • magma:    n. (pl. magmata , magmas) (礦物,有機(jī)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。
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  1. Notice that they are all five - sided more or less . and notice , from a distance as you start your hike , how geological movements as the basaltic magma congealed have produced a wall of bent basalt columns
    向前走,你不妨留意遠(yuǎn)處一堵高聳的巖柱墻,一條條的巖柱因巖漿凝固時(shí)遇地殼移動(dòng),都呈現(xiàn)了扭曲的形狀。
  2. 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(shì),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。
  3. Based on the petrological , petrochemical and geochemical analyses about these rocks , it is concluded in this paper that the xenoliths were originated from the upper mantle , and comprised of both primitive pyrolite and the infusible solid residual of the upper pyrolite while the basaltic magma was melted out of it , which were brought up to the earth ' s surface via o1carnc eruption
    根據(jù)其巖石學(xué)、巖石化學(xué)及地球化學(xué)特征分析,包體來源于上地幔,其成因既有原始地幔巖,亦有上地幔巖經(jīng)部分熔融出玄武巖漿后的難熔固相殘留物,被火山噴發(fā)攜帶至地表。
  4. The control of the deep - seated structural - magmatic process over the metallogenic system around the middle - lower yangtze river reaches is shown as : ( 1 ) the mantle uplift belt is closely related to the general geological background of the metallogenic system ; ( 2 ) the primitive magma originated from different parts of the mantle uplift belt ( mantle ridge or mantle slope ) shows differences in style of formation and composition and results in different magmatic series and metallogenic subzones , respectively ; ( 3 ) the varying depths of structural - magmatic chambers may form a " three - layered structure " ( central type , network - like and ring - like ) and this is the primary factor that controls the different magmatic series and the concerned cluster of ore deposits ; ( 4 ) the alkaline basaltic magma derived from the mantle ridge forms high - potassium and calcium alkaline magma and shoshonitic magma due to its altering intensity of afc process with the lower crustal material , which has something to do with the copper - gold and iron - sulphur metallogenic subsystems , respectively
    深部構(gòu)造巖漿作用對(duì)長江中下游成礦帶安徽沿江地區(qū)成礦系統(tǒng)的控制表現(xiàn)為: ( 1 )地幔隆起帶與成礦系統(tǒng)的總體地質(zhì)背景的演變密切相關(guān); ( 2 )源于地幔隆起帶不同部位(幔脊與幔坡)的原始巖漿,其生成方式和物質(zhì)組成不盡相同,它們分別產(chǎn)生相應(yīng)的不同巖漿巖系列和成礦亞帶; ( 3 )不同深度的構(gòu)造巖漿房組成中心式網(wǎng)格式環(huán)帶式“三層結(jié)構(gòu)” ,是控制區(qū)內(nèi)不同巖漿巖系列及有關(guān)礦床集中分布的主要因素; ( 4 )源于地幔隆起帶脊部的堿性玄武巖漿,由于與下地殼物質(zhì)發(fā)生的afc作用強(qiáng)度不同,形成了高鉀鈣堿性巖漿和橄欖安粗巖漿,分別與銅、金成礦亞系統(tǒng)和鐵、硫成礦亞系統(tǒng)有關(guān)。
  5. 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。

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