Université de Fribourg

Sequence stratigraphy: methodology and nomenclature

Catuneanu, Octavian ; Galloway, William E. ; Kendall, Christopher G. St. C. ; Miall, Andrew D. ; Posamentier, Henry W. ; Strasser, André ; Tucker, Maurice E.

In: Newsletters on Stratigraphy, 2011, vol. 44, no. 3, p. 173-245

The recurrence of the same types of sequence stratigraphic surface through geologic time defines cycles of change in accommodation or sediment supply, which correspond to sequences in the rock record. These cycles may be symmetrical or asymmetrical, and may or may not include all types of systems tracts that may be expected within a fully developed sequence. Depending on the scale of observation,...

Université de Fribourg

Towards the standardization of sequence stratigraphy

Catuneanu, O. ; Abreu, V. ; Bhattacharya, J.P. ; Blum, M.D. ; Dalrymple, R.W. ; Eriksson, P.G. ; Fielding, C.R. ; Fisher, W.L. ; Galloway, W.E. ; Gibling, M.R. ; Giles, K.A. ; Holbrook, J.M. ; Jordan, R. ; Kendall, C.G.St.C. ; Macurda, B. ; Martinsen, O.J. ; Miall, A.D. ; Neal, J.E. ; Nummedal, D. ; Pomar, L. ; Posamentier, H.W. ; Pratt, B.R. ; Sarg, J.F. ; Shanley, K.W. ; Steel, R.J. ; Strasser, André ; Tucker, M.E. ; Winker, C.

In: Earth-Science Reviews, 2009, vol. 92, no. 1-2, p. 1-33

Sequence stratigraphy emphasizes facies relationships and stratal architecture within a chronological framework. Despite its wide use, sequence stratigraphy has yet to be included in any stratigraphic code or guide. This lack of standardization reflects the existence of competing approaches (or models) and confusing or even conflicting terminology. Standardization of sequence stratigraphy...

Université de Fribourg

Oncoid growth and distribution controlled by sea-level fluctuations and climate (Late Oxfordian, Swiss Jura Mountains)

Védrine, Stéphanie ; Strasser, André ; Hug, Wolfgang

In: Facies, 2007, vol. 53, no. 4, p. 535-552

Abundant lagoonal oncoids occur in the Late Oxfordian Hauptmumienbank Member of the Swiss Jura Mountains. Four oncoid types are observed in the studied sections and classified according to the oncoid surface morphology, the structure and composition of the cortex, and the texture and fauna of the encasing sediment. Micrite-dominated oncoids (types 1 and 2) have a smooth surface. Type 1 has a...

Université de Fribourg

Carbonate Sedimentation Rates Today and in the Past: Holocene of Florida Bay, Bahamas, and Bermuda vs. Upper Jurassic and Lower Cretaceous of the Jura Mountains (Switzerland and France)

Strasser, André ; Samankassou, Elias

In: Geologia Croatica, 2003, vol. 56, no. 1, p. 1-18

Lagoonal to intertidal sediments from the Holocene in Florida Bay, on the Bahamas, and in Bermuda are compared to similar facies in the Kimmeridgian and Berriasian of the Swiss and French Jura Mountains. Dating by 14C permits the estimation of sediment accumulation rates in the Holocene. In the ancient outcrops, the timing is given by cyclostratigraphic analysis. Elementary depositional...