本文選題：碎屑巖　切入點：碎屑沉積學　出處：《東北石油大學學報》2017年04期

【摘要】：在分析碎屑沉積學研究進展的基礎上,對主要熱點問題進行概括。碎屑沉積學研究處于活躍時期,研究領域的發(fā)展具有明顯的多極化趨勢,可以概括為"一豎一橫""一粗一細""一深一淺""一大一小""一前一后""一遠一近""一分一合""一長一短""一熱一冷""一急一緩"等十對熱點問題。沉積相模式研究方法從垂向剖面分析法向建筑結構要素分析法發(fā)展;在對細粒沉積物進行研究的同時,粗粒沉積體系研究取得成果;異常重力流、淺水三角洲研究十分活躍,深海沉積模式不斷豐富;研究視野向大到星際研究、小到微生物沉積構造研究兩方面延伸;物源和疏松沉積物變形研究不斷深入;深時氣候和地球未來環(huán)境變化研究成為沉積學關注的焦點;分支河道體系和匯流盆地水系研究成為源匯體系研究的新動向;長達數(shù)十甚至數(shù)百公里的大型沖積體系研究越來越多;不同氣候帶環(huán)境下河流和湖泊沉積的多樣性研究越來越深入;季節(jié)性河流沉積特征揭示大量古氣候和古環(huán)境信息。
[Abstract]:Based on the analysis of the research progress in detrital sedimentology, the main hot issues are summarized. The research of clastic sedimentology is in active period, and the development of the research field has an obvious trend of multipolarization. It can be summarized as "vertical and horizontal," "one thick, one thin," "one deep, one shallow," "one big, one small," "one big and one small," "one big, one small," "one distance, one close," "one minute, one combination," "one long, one short," "one hot, one cold, one urgent, one slow", etc. Research on sedimentary facies models. The research method is developed from vertical section analysis to building structure element analysis. At the same time of studying fine grain sediments, the study of coarse grain sedimentary system has achieved results; the study of anomalous gravity currents, shallow water deltas is very active, and the deep-sea sedimentary models are constantly rich; the research field of view extends to interstellar study. The research on sedimentary structure of microorganism, the study of provenance and loose sediment deformation, the deep climate and the future environmental change of the earth become the focus of sedimentology. The study of branching channel system and catchment system in confluence basin has become a new trend in the study of source and sink system, and there are more and more studies on large-scale alluvial system of tens or even hundreds of kilometers. The diversity of fluvial and lacustrine sediments in different climatic zones has been studied more and more deeply, and the characteristics of seasonal fluvial sediments reveal a great deal of paleoclimate and paleoenvironmental information.
【作者單位】： 長江大學地球科學學院;
【基金】：國家自然科學基金項目(41172106,41302096) 國家科技重大專項(2016ZX05027-002-007)
【分類號】：P512.2;P618.13

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