沉积岩概论
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研究沉积岩要研究什么
- 成分
- 结构
- 环境
- 时间尺度
沉积岩的研究
什么是沉积学
要学习什么
沉积岩的形成过程
- 风化(Weathering) 侵蚀(Erosion)—— 岩石的破坏
- 搬运(Transportation)—— 沉积物的运输
- 沉积(Deposition)——沉积物的沉降
- 成岩(lithifiction)——compaction、dewatering、cementation、consolidation
沉积岩——Clatics(碎屑岩)、Carbonates(碳酸盐岩)
沉积的来源 Sedimentary source and production 搬运和沉积 沉积物类型和沉积岩 沉积体系 沉积结构
一些基本概念的辨析
沉积相关名词
Sediment-unconsolidated material that is produced on earth’s surface by the disaggregation of pre-existing rocks Sedimentary rock-a consolidated body formed from sediments or solutesthat are transported and deposited by gravity, biologic activity, or a fluidand then lithifiedby the combined effects of compactionand cementation Sedimentation-deposition of sediment which results in the formation of sedimentary rock Sedimentology-the study of theproduction, transport, and depositionof sediment