They are distributed in polar permafrost horizons and submarinesediments.
分布于极地永冻层和海底沉积层中。
2
Submarine lava complexes might intrude into the unsolidified sediments, showing pseudo-intrusive contact.
海底熔岩杂岩可以穿切到未因结的沉积物中而呈似侵入接触现象。
3
Since Quaternary, abundant sediments from the Pearl River in the north would be transported via shelf to slope and basinfloor, supplying the sufficient sediments for slope-confined submarine canyons.