菏泽赵王河古沉船沉积地层研究.doc

菏泽古沉船地区沉积地层和地貌研究黄文峰1孙明2冯超臣3郭世春11菏泽市矿产资源勘探开发中心,山东菏泽2740002菏泽市牡丹区考古所,山东菏泽2740003山东省鲁南地质工程勘察院,山东兖州272100摘要:赵王河古沉船河道沉积层具有明显的阶段性,早期沉积以中细砂、粉砂为主,河水游荡性沉积韵律明显。晚期沉积物以粉细沙、粉砂为主。自船底部垂向上,自下而上分为两大段,即黄泛期沉积和河道沉积,其粒径呈愈向上愈细的趋势。剖面分析表明,河道沉积有横向摆动迹象,沉船撞击边滩沉没后,辫状河道逐渐消失,沉船处接受较稳定的河道沉积。关键词:古沉船;地层;沉积韵律;地貌HezeancientshipsregionsedimentarystratigraphicalandmorphologicalresearchHUANGWenfeng,SUNMing,FENGChaochen,GUOShichun1HezeMineralResourcesExplorationandDevelopmentCenter,Shandong,Heze2740002HezePeonyAreaArchaeology,ShandongHeze,2740003GeologicalEngineeringInvestigationofSouthernShandongInstituteofShandongProvince,ShandongYanzhou,272100Abstract:ZhaoWangHeancientshipsriverfaciesintheearlystage,hastheobviousinsedimentarywithsandandsiltysandismainly,,,bottom-updividedintotwoparagraphsnamelyyellowextensiveperioddepositionandtheriver,,sunkenshipscollisionbeach,braidedriversankafterdisappearinggradually,:ancientships;strata;sedimentaryrhythm;landscape2010年9月,菏泽城区某建筑工地发现古沉船,古沉船保存完好,共出土元代或元代以前文物一百余件。考古发掘现场地层剖面揭露清晰,沉积韵律明显。古沉船的发掘为该地区元明时期沉积地层和地貌研究提供了直接依据。沉船地区地质地貌沉船所在地菏泽地区属华北平原新沉降盆地的一部分,为典型黄河冲积平原。除孤山丘陵区有少量寒武系、奥陶系地层出露外,其他地域均为第四系地层所覆盖。第四系地层在山麓地带较薄,厚数十米,离山越远越厚