海洋地质前沿2018，Vol.34Issue(1)：6-11,6.DOI:10.16028/j.1009-2722.2018.01002
闽北近岸海域末次盛冰期古河道体系平面展布以及垂向反射特征
SPATIAL DISTRIBUTION AND VERTICAL REFLECTION OF THE RIVER SYSTEMS IN COASTAL WATERS OFF NORTH FUJIAN IN LAST GLACIAL MAXIMUM
摘要
Abstract
3 500 km shallow seismic profiles are acquired from the nearshore area off the North Fujian for study of the spatial distribution pattern,such as width and depth variations,and vertical reflection characteristics,such as interface reflection and internal boundaries,of the fluvial system prevailed in the Last Glacial Maximum.Based upon the data,we made a systematic investigation of the paleo-river system.Results show that:(1) A paleo-river system occurred in the study area.The distribution of the rivers roughly follows the current submarine topography.One of the paleo-river courses roughly in east-west direction might be from the Minjiang River,another one,which is in north-south direction,might be derived from one of the tributaries of the Yangtze River.(2) The area which is exposed to air in Last Glacial Maximum was flooded by the transgression later on.关键词
闽北近岸海域/末次盛冰期/浅地层剖面/古河道体系形态特征Key words
coastal areas of North of Fujian Province/Last Glacial Maximum/shallow stratigraphic seismic profile/paleo-channels system分类
海洋科学引用本文复制引用
徐承芬,孔祥淮,杨源,张晓波,王蛟..闽北近岸海域末次盛冰期古河道体系平面展布以及垂向反射特征[J].海洋地质前沿,2018,34(1):6-11,6.基金项目
国家自然科学基金面上项目(41376079,41676052) （41376079,41676052）
中国地质调查局项目(DD20160137,DD20160139) （DD20160137,DD20160139）
