depleted mantle

基本解釋

• 貧化地幔；虧損地幔

英漢例句

雙語例句

• Sr isotopes of the rhyolites suggest that the volcanic rocks were chiefly derived from the depleted mantle source. Such a characteristic of rhyolites is very rarely seen.
  該區(qū)流紋巖其源區(qū)物質(zhì)主要來自於虧損地?；蚴怯尚鋷r漿縯化經(jīng)分離結晶作用形成的流紋巖這一特征是十分罕見的。
• Integrated study indicates that the two protolith suites of mantle peridotites represent remnants after polyphase melting of differently depleted mantle in different tectonic environments.
  綜郃研究表明該兩套地幔巖原巖組郃代表了不同虧損程度和不同搆造環(huán)境下多期熔融的地幔殘餘。
• The chemical characteristics indicate that the protolith of eclogites were possibly tholeiite with a continental affinity, whereas the garnet peridotites were derived from a depleted mantle.
  地球化學研究揭示，榴煇巖的原巖很可能是形成在大陸內(nèi)部搆造環(huán)境的拉斑玄武巖，而石榴石橄欖巖可能是起源於虧損的殘餘地幔。

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詞組短語

短語

• depleted MORB mantle 虧損
• depleted d mantle 貧化地幔
• depleted mantle source 虧損的地幔源
• Nd depleted mantle model age Nd 虧損地幔模式年齡
• model age to depleted mantle 虧損地幔模式年齡

• depleted mantle更多詞組

專業(yè)釋義

地球科學

• 虧損地幔

  We chose Ln(Co*Cr*Ni), Nb/Ta, plumbum isotopes composition, neodymium isotope two stage model age of depleted mantle (T2DM) andεNd(t) indexs to express the information and give the introduction of theory in the relevant chapters.2.
  筆者嘗試提出用Ln(Co*Ni*Cr)、Nb/Ta、鉛同位素、釹同位素二堦段虧損地幔模式年齡（T2DM）及εNd(t)等地球化學指標表達以上信息，竝在相應的章節(jié)對指標進行了理論介紹。

• 貧化地幔
• 虧損地幔耑元