指上結構(英語:way up structure)是指在沉積岩或火山岩中的結構,能被用來確定岩層向上的方向(也稱為“地層向上”或“向上年輕化”)[1]。 這種結構在地層受構造運動變形的地區,判斷層位上下關係時特別重要,例如不整合、交錯層理粒级层理底痕荷重痕、泥裂、波痕熔岩流和枕狀結構等[2][3][4]

參考文獻

编辑
  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.