Major oxides, trace elements and rare earth elements of selected basalt sampl...
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DSDP Hole 504B is the deepest section drilled into oceanic basement, penetrating through a 571.5-m lava pile and a 209-m transition zone of lavas and dikes into 295 m of a...
深海钻探计划（Deep Sea Drilling Project, DSDP）504B孔是迄今钻入洋壳基底的最深钻探剖面，该钻孔依次穿透了571.5米厚的熔岩堆积层、209米厚的熔岩与岩脉（dikes）过渡带，最终钻进至295米厚的……
