depleted mantle

常見例句

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)主要來自于虧損地幔或是由玄武巖漿演化經(jīng)分離結(jié)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.
綜合研究表明該兩套地幔巖原巖組合代表了不同虧損程度和不同構(gòu)造環(huán)境下多期熔融的地幔殘余。
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(xué)研究揭示，榴輝巖的原巖很可能是形成在大陸內(nèi)部構(gòu)造環(huán)境的拉斑玄武巖，而石榴石橄欖巖可能是起源于虧損的殘余地幔。