Using stratigraphy to deduce rates of thrusting

The finite geometry of structures can generally be interpreted to have formed by a number of different ways – the non-uniqueness of strain paths. Growth strata offer the opportunity to discriminate between different structural histories. They also provide critical information on geological time, if there is appropriate stratigraphic control, and so offer a way of establishing deformation rates. Clearly the best information is likely to come from the places with the highest stratigraphic resolution. The Neogene record of the Mediterranean is excellent in this regard, with the Sicilian thrust systems providing excellent opportunities.

Some of this work, building stratigraphic knowledge, has impact on climate models in the Mediterranean , especially for the Messinian Salinity Crisis.

Some papers

(pdfs where live)

Butler, R.W.H., Grasso, M. & La Manna, F. 1992. Origin and deformation of the Neogene-Recent Maghrebian foredeep at the Gela Nappe, SE Sicily . J. Geol. Soc. London 149, 547-556.

Butler, R.W.H.& Grasso, M. 1993. Tectonic controls on base level variations and depositional sequences within thrust-top and foredeep basins: examples from the Neogene thrust belt of central Sicily . Basin Research 5, 137-151.

Butler, R.W.H., Grasso, M. & Lickorish, W.H. 1995. Plio-Quaternary megasequence geometry and its tectonic controls within the Maghrebian thrust belt of south-central Sicily . Terra Nova 7, 171-178.

Lickorish , W.H. & Butler, R.W.H. 1996. Fold amplification and parasequence stacking patterns in syn-tectonic shoreface carbonates. Bull. Geol. Soc. America 108, 966-977.

Butler, R.W.H.& Lickorish, W.H. 1997. Using high resolution stratigraphy to date fold and thrust activity: examples from the Neogene of South-central Sicily. J. Geol. Soc. London 154, 633-643.

Butler, R.W.H., Grasso, M., Gardiner, W. & Sedgeley, D. 1997. Depositional patterns and their tectonic controls within the Plio-Quaternary carbonate sands and muds of onshore and offshore SE Sicily ( Italy ). Marine Petrol. Geol. 14, 879-892.

Butler, R.W.H., Keogh, S.M . & Lickorish, W.H. 1998. Evolution of the Agrigento thrust-top basin, Sicily : Sedimentation and the tectonics of orogenic wedges. Ann. Tect. 12, 28-50.

|| Thrusts || Rob Butler ||