朝鲜海峡位于朝鲜半岛与对马岛及日本之间。研究区范围的经纬度为128°00′—130°00′E 和34°00′—35°30′N。本次研究的目的在于确定朝鲜海峡底部沉积物所含粘土矿物的分布和来源。研究区的沉积物,除洛东江口港湾和主航道区外,一般均由细粒沉枳组成(图1)。洛东江(朝鲜最大河流之一)在7—8月份的雨季里将大量粗粒沉积物注入朝鲜海峡,并在其河口形成金海三角洲。在朝鲜海峡中部深水区, The Korean Strait is located between the Korean peninsula and the Falklands and Japan. The latitude and longitude of the study area ranged from 128 ° 00’-130 ° 00’E and 34 ° 00’-35 ° 30’N. The purpose of this study is to determine the distribution and origin of clay minerals in the sediments at the bottom of the Korea Strait. Sediments in the study area, except the estuary estuary of the Loddon estuary and the main waterway area, are generally composed of fine-grained Shen-Zhi (Fig. 1). The Nakdong River, one of North Korea’s largest rivers, injects large amounts of coarse-grained sediments into the North Korea Strait in the July-August rainy season and forms the Gimhae delta at its estuary. In the deep water area in the central part of the Korean Strait,