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PESA QLD: Technical Evening, November 19: Henry W. Posamentier on ‘Recent applications of seismic geomorphology/stratigraphy’
PESA Queensland welcomes 2025 PESA Distinguished Lecturer, Henry W. Posamentier to present a technical evening presentation on Recent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea. The technical evening will be held at the Transcontinental Hotel.
Due to the significant crossover with our peer society ASEG (Australian Society of Exploration Geophysicists), ASEG members are welcomed to attend at PESA member pricing.
Speaker travel and accommodation has been supported by Santos Ltd.
| Presentation: | Recent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea |
| Venue: | Transcontinental Hotel, 482 George St, Brisbane City QLD 4000 |
| Date & Time: | Wednesday, 19 November 5:15 PM for 6:00 PM Start |
Recent applications of seismic geomorphology/stratigraphy: Deep-water deposits of the Bay of Bengal and the Norwegian Sea
Henry W. Posamentier
This presentation will document the seismic stratigraphic and seismic geomorphologic expressions of deep-water deposits of the Bay of Bengal and the Norwegian Sea. They comprise both turbidites as well as mass transport deposits. The turbidite deposits from the Bay of Bengal include leveed channel complexes, terminal fans, and overbank sediment waves. With respect to terminal fans, there are those that terminate basinward of leveed channel systems and are relatively large, and those that are deposited late within a lowstand cycle of deposition and are confined between the levees of precursor larger channels, and are relatively small. Intra-basinal channels (i.e., channels that start and end on the basin floor) are observed within abandoned meander loops as well as interchannel overbank terrains. These intra-basinal channels are characterized by low sinuosity and likely are mud-filled with no exploration potential.
Mass transport deposits from the Norwegian Sea include flows, slumps, and slides, as well as isolated outrunner blocks. These deposits are associated with significant substate erosion up to 250m. The outrunner blocks are observed in clusters, generally in radiating patterns down-system. Some of the outrunner blocks at the termini of erosional furrows are associated with sediment tails orthogonal to the direction of transport, indicating bottom current direction from southwest to northeast. In addition, volcanic intrusive deposits will be documented. These intrusives comprise both dikes and sills. Some of the dikes are associated with laccoliths in the shallower section.
Tickets for the Technical Evening Talk can be purchased below.
Early Bird ticket pricing will be available until Wednesday, 12 November 5:30 PM – to avoid disappointment please register before this time.
| Early Bird Ticket Price | Standard Ticket Price | ||
| Members – $35 Non-Members – $45 Student / Retired Members – $25 |
Members – $45 Non-Members – $55 Student / Retired Members – $35 |
Speaker travel and accommodation supported by Santos Ltd.



