沉积学报2025，Vol.43Issue(6)：1897-1918,22.DOI:10.14027/j.issn.1000-0550.2024.080
湖泊细粒沉积岩纹层特征与形成机制研究进展及展望
Progress and Perspective on the Characteristics and Formation Mechanism of Laminae in Lacustrine Fine-grained Sedimentary Rocks
摘要
Abstract
[Significance]The development mechanism of fine-grained rock laminae is important for paleoclimate re-duction and unconventional oil and gas exploration,and has attracted significant attention in recent years.However,the formation mechanism and corresponding identification characteristics of laminae in lacustrine fine-grained sedimentary rocks are still unclear.[Progress]This article systematically summarizes the sedimentary properties and factors influencing the formation of laminae in lacustrine fine-grained sedimentary rocks,such as suspended sedimentation,distal dilution of gravity flow,bottom currents,volcanic hydrothermal fluid and microbial activities.Various sedimentary processes may form similar laminae in composition,lamina thickness,particle size,and morphology,but for genetic identification,significant differences are evident in laminae combinations,bioturbation and other sedimentary features.The formation and distribution of these laminae are controlled by two major factors:paleoclimate and paleogeography.Paleoclimate has a broad,complex control over laminae;paleogeography controls their distribution pattern.[Prospects]From the perspectives of theoretical development and practical application,there remain some outstanding issues in the study of laminae in lacustrine fine-grained sedimentary rocks.In future studies,effective methods for extracting and naming laminae should be developed for identifying their formation mechanism,integrating spatial changes and focusing on groundbreaking issues(e.g.,paleoclimate interpretation,carbon burial,life evolution,Martian sedimentology)to meet the major needs of unconventional oil and gas explora-tion.关键词
细粒沉积学/页岩/纹层/非均质性/沉积特征/主控因素Key words
fine-grain sedimentology/shale/laminae/heterogeneity/sedimentary characteristics/main controlling factors分类
天文与地球科学引用本文复制引用
WANG MingQian,ZHANG YuanYuan,ZHU RuKai,GUO ZhaoJie,LI ZhiYang,WANG JunFeng..湖泊细粒沉积岩纹层特征与形成机制研究进展及展望[J].沉积学报,2025,43(6):1897-1918,22.基金项目
国家自然科学基金项目(42090021)[National Natural Science Foundation of China,No.42090021] （42090021）
