Chapter 2 Sedimentary paleogeography-3 沉积古地理学-3 2.1 concepts and laws 概念和定律 2.2 sedimentary-facies indicators 相标志 2.3 sedimentary environments 沉积环境(自主互动)
Chapter 2 Sedimentary paleogeography-3 沉积古地理学-3 2.1 concepts and laws 概念和定律 2.2 sedimentary-facies indicators 相标志 2.3 sedimentary environments 沉积环境 (自主互动)
2.2 Sed facies indicators 相标志 22.1 biologic indicates,/生物标志 22.2 physic indicators物理标志 223 chemic indicators/化学标志 224 integrated indicators/综合标志
2.2 Sed. facies indicators 相标志 2.2.1 biologic indicates/生物标志 2.2.2 physic indicators/物理标志 2.2.3 chemic indicators/化学标志 2.2.4 integrated indicators/综合标志
2.2.2 physic indicators ○ lithology ○ structures on bedding surface ○ bedding structures ○soft- sediment deformations
2.2.2 physic indicators ●lithology ●structures on bedding surface ●bedding structures ●soft-sediment deformations Physic sed. structures
Lithology Color: originated and weathered Composition: terrigenous, intra-basinal volcanic and mIxing Texture: grain size, sorting, roundness, sphericity, micromorphology, matrix
Lithology Color: originated and weathered Composition: terrigenous, intra-basinal, volcanic and mixing Texture：grain size, sorting, roundness, sphericity, micromorphology, matrix
Color: originated weathered Originated Inherited dependent on color of clastics. e.g. quartz sandstone-white or gray white; feldspar sandstone-reddish Autogenous: originated from minerals and pigments which are formed in the course of syndeposition and diagenesis. e.g. glauconitic sandstone-green. Originated colors possess stable and wide distribution in space, and parallels to original bed boundaries
Color: originated & weathered Originated: Inherited ：dependent on color of clastics. e.g. quartz sandstone-white or gray white; feldspar sandstone-reddish . Autogenous: originated from minerals and pigments which are formed in the course of syndeposition and diagenesis. e. g. glauconitic sandstone-green. Originated colors possess stable and wide distribution in space, and parallels to original bed boundaries