plate boundary

基本解釋

The site of this destruction is another kind of plate boundary: a subduction zone.
銷毀舊巖石圈的地方形成另外一種板塊邊界：一塊潛沒的區(qū) 域。
Mantle material can sink at a plate boundary, and then flow back upward farther away, pushing on the crust — a process called small scale convection.
地幔，這種物質可以在板塊邊界處下沉，然后向上回流到較遠的地方，再與地殼相碰撞——這個過程被稱為小規(guī)模的對流。
Both kinds of plate boundary are associated with fault systems, earthquakes and volcanism, but the kinds of geologic activity observed at the two boundaries are quite different.
兩種板塊邊界均與地層系統(tǒng)、地震以及火山活動有關，但在兩種邊界處觀察到的諸般地質活動卻迥然不同。

Instead of occurring at a plate boundary along an area called a subduction zone, where one tectonic plate is diving beneath another, this earthquake occurred in the middle of an oceanic plate, where the faults in the crust essentially moved from side to side instead of up and down.
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