ERSC 3P12 Lecture Notes - Lecture 17: Sequence Stratigraphy, Siliciclastic, Unconformity
9 Jun 2016
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Outline: introduction, the history of sequence stratigraphy, sea levels, basic theory the units of sequence stratigraphy, some examples of siliciclastic sequence stratigraphy, carbonate/evaporite sequence stratigraphy, some exercises on sequence stratigraphy. Linking sedimentary processes with sedimentary architecture,allows us to place the deposits in a temporal context. Accommodation space controlled by relative sea level (eustasy and /or subsidence e. g. by tectonic effects) and by sediment supply, which uses up accommodation space. To maintain the ideal equilibrium profile (exponentially curved topographic profile), erosion or deposition of alluvial sediment will have to take place in the event of relative sea-level rise or fall. What skills do you need to be an effective sequence stratigrapher: a general background in geology, basic skills in sedimentology, an ability not to be too fazed by significant levels of jargon! Six cratonic sequences (bounded by craton-wide unconformities) in n. america.
