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凝縮層

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凝縮層(condensed section)又稱密集段、濃縮層、緩慢沉積段,是海侵最大時期在大陸棚大陸坡大洋盆地沉積形成的的半深海和深海沉積物[1]。這時海域最廣最深,陸源物資最遠,故沉積速率最低,厚度很薄,碎屑顆粒也最細。因缺乏陸源物質,故所含有機質,古生物相對較高。由岩石露頭[2],岩芯及測井曲綫[3] [4]. 均可認出,在地震剖面上亦可由最高上超點及其反射面認出[5]

參考文獻

[編輯]
  1. ^ Catuneanu, Octavian (2011). "Sequence stratigraphy: methodology and nomenclature". Newsletters on Stratigraphy. E. Schweizerbart'sche Verlagsbuchhandlung.44(3): 190
  2. ^ Monroe, J. S., and Wicander. R. 1997.The Changing Earth: Exploring Geology and Evolution, 2nd ed. Belmont: West Publishing Company, 1997, pp. 112 - 113 ISBN 0-314-09577-2
  3. ^ Oresajo, B., et al. 2015.Sequence stratigraphy and structural analysis of the Emi field offshore depobelt, Eastern Niger Delta Basin, Nigeria. 2015, Ife Journal of Science, vol. 17
  4. ^ 宋子齊等人,2009. 利用自然電位與自然伽馬測井曲線劃分沉積相帶及儲層分布。地球物理學進展 Vol. 24 ›› Issue (2): 651-656.doi: 10.3969/ j.issn.1004-2903.2009.02.038
  5. ^ Van Wagoner, J.C., 1988. AN OVERVIEW OF THE FUNDAMENTALS OF SEQUENCE STRATIGRAPHY AND KEY DEFINITIONS.SEPM Special Publication ISBN 0-918985-74-9