疊瓦結構
外觀
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疊瓦結構(英語:imbrication)是一種沉積結構,由碎屑顆粒向同一方相互重疊倒塌,如同瓦片。一般在礫岩中常見到[1]。疊瓦的類型一般與古水流向有關[2]。 一般碎屑顆粒長軸方向與古水流方向一致[3]。在冰川沉積物中礫岩向盆地傾斜,而三角洲礫岩可能相反[4]。
參考文獻
[編輯]- ^ Pettijohn F. J., 1957, Sedimentary Rocks, Harper and Row, Second Edition p. 78
- ^ Becker G.F. (1893). "Finite homogenous strain, flow, and rupture of rock". Bull. Geol. Soc. Am. 4: 13–90. Bibcode:1892GSAB....4...13B. doi:10.1130/gsab-4-13. hdl:2027/mdp.39015066907851.; cite in Pettijohn, 1957
- ^ Wadell, H., 1936, Shape and position of rock fragments, Geografiska Annaler, pp. 74-92, cite in Pettijohn, 1957
- ^ Krumbein W. C. (1940). "Flood gravel of San Gabriel Canyon". Bull. Geol. Soc. Am. 51: 636–676