中文摘要：

本文根据笔者在鄂霍次克海的调查资料，介绍了一种新的沉积构造形式。通常的海底沉积物柱状样品切面是平整、光滑的，本文将一种粗糙、不平整的海底沉积物柱状样品切面构造称之为逸气揭皮构造。认为逸气揭皮构造是由于沉积物所处物理条件的改变，特别是压力降低，致使本身所含气体，以及所含水合物分解形成的气体体积迅速膨胀、气体逃逸，使沉积物发育大量裂纹，从而改变了沉积物原来的排列方式而形成的一种新的次生物理构造。逸气揭皮构造是沉积物中大量含气的标志。沉积物中含有的气体可以是天然气水合物分解形成的。这样逸气揭皮构造和天然气水合物密切相关。或者可以说，逸气揭皮构造是沉积地层发育水合物的一个标志。

英文摘要：

Based on the data obtained in the Okhotsk Sea and ODP204 Cruise, this paper introduced a newly found sedimentary texture. It is generally known that the cut section surface of marine core sediment is smooth and flat. However, this study introduced a prismatic section of rough and uneven marine sediments, which is named gas-bursting texture in this text. The study also believed that this kind of texture resulted from changing of physical conditions, under which sediments were deposited. Decreasing of pressure probably results in that gas, water and hydrate contained in the sediments decomposes into gas prone to expand and escape rapidly, which may be responsible for well developing of cracks on the sediments, and thus forming a new secondary texture. So the gas-bursting texture is a marked feature of gas-contained sediment and usually hydrate-related gas.