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Modern Seafloor Depositional Systems

Offshore West Africa and North Sea, Canadian Maritime Province (Past Projects)

Offshore West Africa

Near-surface, high-resolution 3-D seismic datasets in the region of the Niger Delta, West Africa, provide an excellent means to assess and refine models of deep-water depositional systems due to their unparalleled resolution of deposits over large areas (Adedayo Adeogba, 2003). The application of Adedayo's work in near-surface seismic data interpretation is in gaining a better understanding of the distribution of reservoir facies in other, complex slope depositional settings. SPODDS research has also included a 3D seismic reflection-based study of the avulsion histories and evolution of channel systems on the sea floor and shallow subsurface of the Niger Delta continental slope (Dominic Armitage, 2009) and studies of the types and evolution of Cenozoic to modern submarine canyons off Equatorial Guinea (Zane Jobe, 2010).

Chirp sub-bottom profile from the Lucia Chica channel system, offshore central C

Central California

Recent to modern submarine fan systems offer unique insights into the processes of sandy deep-water sedimentation. Analysis of modern systems provides turbidite researchers a glimpse of sea-floor morphology as well as timing and distribution of sediment gravity flow deposits. Factors that influence deep-water sedimentation, such as (1) basin setting, (2) source-to-basin sediment dispersal, (3) source area composition, (4) structural/tectonic activity, (5) sea level stands, and (6) climatic fluctuations, are relatively well-known for Holocene systems (last 11,000 years) and, thus, provide a contextual framework for understanding controls on deep-water sedimentation...

Maps comparing lowstand versus highstand sediment routing patterns for southern

California Borderland

Recent to modern submarine fan systems offer unique insights into the processes of sandy deep-water sedimentation. Analysis of modern systems provides turbidite researchers a glimpse of sea-floor morphology as well as timing and distribution of sediment gravity flow deposits. Factors that influence deep-water sedimentation, such as (1) basin setting, (2) source-to-basin sediment dispersal, (3) source area composition, (4) structural/tectonic activity, (5) sea level stands, and (6) climatic fluctuations, are relatively well-known for Holocene systems (last 11,000 years) and, thus, provide a contextual framework for understanding controls on deep-water sedimentation...