沉积学研究热点与进展:第32届国际沉积学会议综述  

Current hot topics and advances of sedimentology:A summary from 32nd IAS Meeting of Sedimentology

作　　者：朱筱敏[1] 李顺利[1] 潘荣[1] 谈明轩[1] 陈贺贺[1] 王星星[2] 陈锋[1] 张梦瑜[1] 侯冰洁 董艳蕾[1] Zhu Xiaomin Li Shunli Pan Rong Tan Mingxuan Chen Hehe Wang Xingxing Chen Feng Zhang Mengyu Hou Bingjie Dong Yanlei(College of Geosciences, China University of Petroleum （Beijing） , Beijing 102249 Ocean College, Zhejiang University, Zhoushan 316000, Zhejiang)

机构地区：[1]中国石油大学(北京)地球科学学院,北京102249 [2]浙江大学海洋学院,浙江舟山316000

出　　处：《古地理学报》2016年第5期699-716,共18页Journal of Palaeogeography：Chinese Edition

基　　金：国家自然科学基金项目(编号:41272133)资助~~

摘　　要：第32届国际沉积学会议（32nd IAS Meeting of Sedimentology）于2016年5月23—25日在摩洛哥马拉喀什召开,来自43个国家和地区的360余名学者参加了本次会议。综述研究表明,会议研究热点为陆相沉积环境、浅水沉积与滨岸潮汐、深水沉积与事件沉积、碳酸盐与化学岩沉积、沉积过程与盆地分析、成岩作用与油气储集层等研究领域。会议主要研究进展表现为：波浪再悬浮作用（wave resuspension）与异重流（hyperpycnal flows）是陆架边缘斜坡快速进积的主要因素;海啸发生周期为14～35ka,后积层理（backset-bedding）为海啸沉积识别标志;海底滑坡多由海底地震、天然气水合物泄露等触发,其块状搬运沉积物（MTD）包括滑塌头部、滑动底面、滑塌主体以及滑塌后期浊流沉积;玄武岩等基岩的风化作用提供硅与富镁碱性水,有利于菱沸石与白云石的形成;受构造作用影响,隆起剥蚀区与沉积区可互为转化;物源性质、供给量及搬运或分散过程控制了沉积面貌（源汇系统）;构造活动直接控制可容纳空间变化、地貌变化、源区剥蚀速率、沉积物供应速率等。最后,本文对比了中外沉积学发展差异,讨论了中国沉积学发展方向。The 32 nd IAS Meeting of Sedimentology was held in Marrakech,Morocco,from 23 to25May 2016. More than 360 sedimentologists from 43 countries and regions participated in this meeting. Areview of research indicates that hot issues of this meeting mainly consist of continental sedimentary environment,seposition,sedimehallow water deposits and coastal tidal systems,deep water sedimentation and event sedimentation,carbonate and chemical dntary process and basin analysis,diagenesis and hydrocarbon reservoirs. Main progresses of the meeting are listed as follows. Wave resuspension and hyperpycnal flow contribute to rapid progradation of shelf-margin clinoforms. The occurring period of tsunami ranges from 14ka to 35ka,and backset-bedding has become the identification feature of the tsunami deposits.Submarine landslides were mostly triggered by submarine earthquake and leakage of gas hydrate; the products of mass-transport-deposits usually consist of headwall scarp,basal shear surface,landslide body and post-mass wasting turbidities. The weathering process of host rock（ like basalt） provided silica and Mgrich alkaline waters,which were suitable for chabazite and dolomite formation. The invertible transformation could occur between the uplift erosion area and the depositional area due to the tectonic influence.Sedimentary topography（ source-to-sink system） was controlled by provenance property,sediment supply and transporting or dispersing processes. Variation of accommodation and landform,erosion rate of source area and sediment supply rate were directly linked to tectonic movement. Finally,this article makes a comparison between the development of sedimentology in China and other countries,and discusses the future research fields of sedimentology in China.

关 键 词：第32届国际沉积学会议 研究热点 陆相沉积环境 滨岸与浅水沉积 深水沉积与事件沉积 碳酸盐沉积 沉积过程与盆地分析 成岩作用与油气储集层 

分 类 号：P512.2[天文地球—地质学]