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一、现代地层学理论现代地层学是相对于传统地层学而言的。现代地层学与传统地层学的最主要区别在于地层划分的概念和理论的不同。传统地层学属于统一地层划分概念,基本原理认为构造运动、古地理变化、沉积剥蚀作用的变化、变质作用和岩浆活动的出现以及生物界的变迁五种现象是地壳发展统一过程的不同表现,研究一方面的发展情况,其结果必然和研究其它各方面的结果相符合。在这种理论指导下,于是得出了“一个岩石地层单位正因为它是客观的实际地层体,它就不可能不属于同一地质时代。”只承认和地质年代单位对应或平行的,具有固定一致时间含义的统一地层单位。这是时空岩一致论的传统地层学原理。
First, the theory of modern stratigraphy Modern stratigraphy is relative to the traditional stratigraphic terms. The main difference between modern stratigraphy and traditional stratigraphy lies in the different concepts and theories of stratigraphic division. The traditional stratigraphy belongs to the concept of unified stratigraphic division. The basic principle holds that the five phenomena of tectonic movement, palaeogeographic change, alteration of sedimentation and denudation, occurrence of metamorphism and magmatic activity and the change of the biological world are different manifestations of the unified process of crustal development. On the one hand, the result of the development must be consistent with that of other aspects. Under the guidance of this theory, we come to the conclusion that “a rock strata unit can not belong to the same geologic age just because it is an objective physical strata.” It only admits that it corresponds to or is parallel to a geologic age unit and has a fixed Uniform stratigraphic unit of meaning consistent with time. This is the traditional theory of stratigraphy of space-time rocks.