the submarine fan with completely inner, middle and outer fan can be divided into progressive and regressive sequence, which were composed of sandstone bodies formed by turbidity flow 海底扇具有完整的內(nèi)扇、中扇與外扇組合,可劃分出進(jìn)積型和退積型兩種序列類型,它們多半是由濁流形成的各種砂體組成的。