内蒙古石油化工
內矇古石油化工
내몽고석유화공
INNER MONGULIA PETROCHEMICAL INDUSTRY
2011年
13期
1-4
,共4页
准层序%层序格架%层序地层%小级别旋回
準層序%層序格架%層序地層%小級彆鏇迴
준층서%층서격가%층서지층%소급별선회
Parasequence%Stratigraphic Architecture%Sequence Stratigraphy%Small-Scale Cycle
准层序概念是一个松散的描述性术语,在应用上也存在较大的不协调性,通过大量阅读国内外相关文献,总结和分析了四种比较具有代表性的修正建议:①用岩相序列代替准层序拓宽研究对象;②在地层接触面特征明确时用其它现存术语进行描述;③将环潮坪型碳酸盐准层序扩展到所有米级旋回,不局限于海泛面所限定的地层单元;④使用泛型术语进行总括性松散描述,摆脱特殊地层格架和沉积环境的约束。关于这种复杂地质现象的准确描述还有待于进一步研究。
準層序概唸是一箇鬆散的描述性術語,在應用上也存在較大的不協調性,通過大量閱讀國內外相關文獻,總結和分析瞭四種比較具有代錶性的脩正建議:①用巖相序列代替準層序拓寬研究對象;②在地層接觸麵特徵明確時用其它現存術語進行描述;③將環潮坪型碳痠鹽準層序擴展到所有米級鏇迴,不跼限于海汎麵所限定的地層單元;④使用汎型術語進行總括性鬆散描述,襬脫特殊地層格架和沉積環境的約束。關于這種複雜地質現象的準確描述還有待于進一步研究。
준층서개념시일개송산적묘술성술어,재응용상야존재교대적불협조성,통과대량열독국내외상관문헌,총결화분석료사충비교구유대표성적수정건의:①용암상서렬대체준층서탁관연구대상;②재지층접촉면특정명학시용기타현존술어진행묘술;③장배조평형탄산염준층서확전도소유미급선회,불국한우해범면소한정적지층단원;④사용범형술어진행총괄성송산묘술,파탈특수지층격가화침적배경적약속。관우저충복잡지질현상적준학묘술환유대우진일보연구。
The loose descriptive concept of parasequence makes tremendous inconsistence in practice.By extensively reading a variety of relevant references at home and abroad,this paper summarized and analyzed four kinds of representative modified suggestions:(1) the replacement of facies succession for parasequence widen the research objects;(2) when the bounding surface is recognizable,using other already existing terms is an effort to standardize the sequence stratigraphy;(3) Based on specific character of carbonate deposition,peritidal carbonates is extended to all meter-scale cycles,independent from flood surface;(4) the generic descriptive terminology make it independent from the specific stratal architecture and depositional setting.The more accurate concept about this complex and incomplete stratigraphic record is still need to further sthdy.