Deep-marine sandy lobe and related deposits form an important part of modern and ancient submarine fans and can form major hydrocarbon reservoirs. A wide range of field/laboratory techniques will be used to understand the 3-D architecture and building processes/patterns of lobe deposits in world-class outcrops in the Middle Eocene Ainsa-Jaca basin, Spanish Pyrenees (50-40 Ma).
Pickering and students have studied the proximal Ainsa basin, providing a geological framework for research in the adjoining, more distal, Jaca basin. Correlations of individual beds will be made (including so-called “hybrid-event beds” or “linked debrite-turbidite beds”) and packages of beds (lobe and related environments), using petrographic, geochemical and biostratigraphic studies of calcareous nannofossils.
Time-series analysis of bed thickness data will be used to investigate any global climate signals in controlling deposition (at Milankovitch frequencies, as demonstrated for the fine-grained sedimentation ion the Ainsa basin).