CAJ | 학술논문

基于对普里兹湾陆架表层沉积物粒度分析，结合海区动力环境特点，初步探讨了考察区类型、组成及冰海沉积作用特点。研究区表层沉积物大体可分为：砾（ G）、泥质砂质砾（ msG）、砾质泥（ gM）、砾质泥质砂（ gmS）、含砾泥（（g）M）、含砾泥质砂（（g）mS）、砂（S）、砂质粉砂（sZ）和粉砂（Z）九种类型。依据沉积物粒度特征与地形变化，可将研究区划分为东部含砾泥质区和西部含砾砂质区。在东部含砾泥质区，包括四夫人浅滩、Svenner水道区、普里兹水道区和埃默里海盆区，沉积作用主要受海流影响，冰筏碎屑的影响有限，沉积物总体较细，粘土和细粉砂含量较高，粗粉砂和砂含量较低。在西部含砾砂质区，包括弗拉姆浅滩和埃默里冰架前缘，沉积作用受冰山、埃默里冰架和海流的共同影响，沉积物中粘土含量较低，砂和砾石含量较高，但也有个别站位可能受冰间湖的影响，沉积物粒度偏细。
기우대보리자만륙가표층침적물립도분석，결합해구동력배경특점，초보탐토료고찰구류형、조성급빙해침적작용특점。연구구표층침적물대체가분위：력（ G）、니질사질력（ msG）、력질니（ gM）、력질니질사（ gmS）、함력니（（g）M）、함력니질사（（g）mS）、사（S）、사질분사（sZ）화분사（Z）구충류형。의거침적물립도특정여지형변화，가장연구구화분위동부함력니질구화서부함력사질구。재동부함력니질구，포괄사부인천탄、Svenner수도구、보리자수도구화애묵리해분구，침적작용주요수해류영향，빙벌쇄설적영향유한，침적물총체교세，점토화세분사함량교고，조분사화사함량교저。재서부함력사질구，포괄불랍모천탄화애묵리빙가전연，침적작용수빙산、애묵리빙가화해류적공동영향，침적물중점토함량교저，사화력석함량교고，단야유개별참위가능수빙간호적영향，침적물립도편세。
Grain size characteristics of surface sediments on the Prydz Bay shelf , East Antarctica , together with dynamic environment , were analyzed to illustrate sediment types , compositions and relevant glaciomarine sedimentation .The surface sediments were classified into nine types:gravel, muddy sandy gravel, gravelly mud, gravelly muddy sand, slightly gravelly mud , slightly gravelly muddy sand , sand , sandy silt , and silt .The study area could be divided in-to two sections based on sediment grain size and topography , a gravelly mud section in the east of the bay and a gravelly sand section in the west .In the eastern gravelly mud section , including Four Ladies Bank , the Svenner Channel , the Prydz Channel and the Amery Basin , sedimentation is mainly controlled by marine circulation with lit-tle contribution from iceberg , and then sediments are relatively fine and contain a large amount of clay and fine silt . In contrast , the coarse-grained sediments in the western gravelly sand section , including the Fram Bank and the Amery Ice Shelf front , are products of iceberg , current and Amery ice shelf with an exception of fine-grain sediment occurring in the polynya .