指上结构

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指上结构(英语:way up structure)是指在沉积岩或火山岩中的结构,能被用来确定岩层向上的方向(也称为“地层向上”或“向上年轻化”)[1]。 这种结构在地层受构造运动变形的地区,判断层位上下关系时特别重要,例如不整合、交错层理粒级层理底痕荷重痕、泥裂、波痕熔岩流和枕状结构等[2][3][4]

参考文献

  1. ^ Prothero and Schwab, 1996, Sedimentary Geology, ISBN 0-7167-2726-9
  2. ^ Allen, J. R.. Sedimentary Structures: Their Character and Physical Basis Volume II. Oxford: Elsevier Scientific Publishing Company, (1982). 253
  3. ^ Bruno Sander, 1951, Rhythmically deposited Triassic limestones and dolomites in Contributions to the study of depositional fabrics, Translated by Eleanora Bliss Knopf for AAPG
  4. ^ Pettijohn F. J., and Paul Edwin Potter. Atlas and Glossary of Primary Sedimentary Structures. Berlin: Springer-Verlag, 1964. 311.