论文部分内容阅读
在详细的露头层序地层学研究基础上,本文将龙门山泥盆纪白云岩划分为层序界面上的、低水位和高水位的3种产状类型,各类白云岩岩石学、矿物学和碳氧同位素材征各不相同,分别具蒸发泵、埋藏、混合水和大气水淋滤-重结品改造白云岩石化模式,发育条件均受海平面升降变化控制、与沉积、成岩环境的演化密切相关。研究表明,各类白云岩的成因特征可作为识别层序界面和划分沉积体系域的重要标志之一。
Based on the detailed study of outcrop sequence stratigraphy, the Devonian dolomite in the Longmen Shan area is divided into three types of occurrences of low water level and high water level on the sequence boundary interface. Various types of dolomite petrology, mineralogy And carbon and oxygen isotope materials vary, with evaporation pump, burial, mixed water and air water leaching - recrystallization of dolomite petrochemical transformation of the model, the development conditions are subject to changes in the sea level changes, and deposition, diagenetic environment Closely related to evolution. The research shows that the genetic characteristics of various dolomites can be used as one of the important symbols to identify sequence boundaries and divide sedimentary system domains.