跳至內容

波痕

維基百科,自由的百科全書
Capitol Reef National Park猶他州

波痕(英語:ripple marks)是由於流體(水或風)的流動在沉積物表面形成的波狀起伏的構造。一般由沉積物表層的砂粒在遷移過程中形成在層面上的沙波。 波痕有三種:流水波痕(Current formed ripples):呈不對稱狀,波谷與波峰均較圓滑,陡坡傾向與流向一致[1] [2]浪成波痕(wave-formed ripples):對稱的浪或波痕,波峰尖、波谷圓滑[3]風成波痕(Wind-formed ripples):呈不對稱狀,波谷寬闊,波峰圓滑,陡坡傾向與風向一致[4]

參考文獻

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  1. ^ Boggs Jr., Sam. (2006) Principles of Sedimentology and Stratigraphy, 4th ed
  2. ^ Easterbrook, Don J. Surface processes and landforms. Upper Saddle River, N.J: Prentice Hall, 1999. Print. ISBN 0-13-860958-6 pp. 479-480
  3. ^ Nichols, Gary. (2009) Sedimentology and Stratigraphy, Wiley, ISBN 978-1405135924
  4. ^ Greeley, Ronald, and James D. Iversen. Wind as a Geological Process On Earth, Mars, Venus and Titan (Cambridge Planetary Science Old). New York: Cambridge UP, 1987. ISBN 0-521-35962-7 pp. 153-154

外部連結

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