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PESA SA/NT September Technical Luncheon – Thursday, October 28th: Controls on gravity-driven normal fault geometry and growth in stacked deltaic settings: a case study from the Ceduna Sub-basin

Thursday, 28 October @ 12:00 pm - 1:30 pm (Australia/Adelaide time)

Free – $70.00

Guest Speaker(s): Monica Jiminez Lloreda

Monica has 8 years of experience in the oil and gas industry, working on both exploration and development projects. Her areas of expertise include seismic interpretation, kinematic analyses, stress fields, and structural and static modelling. She holds a bachelor’s (Hons) degree in Geology from the National University of Colombia and a master’s degree in Petroleum Geosciences from the Royal Holloway where she was awarded a merit dissertation. In 2019, Monica started a PhD in ASPER at the University of Adelaide. Her research is focused on the fault evolution in deltaic settings and its implications for petroleum systems including fault growth history, fault risk reactivation analysis and 2D synthetic models. Her project has been awarded an ASEG grant in 2020 and a PESA Bursary Award. She also holds a Research Training Program Stipend and Bill Stuart Memorial scholarships.

Controls on gravity-driven normal fault geometry and growth in stacked deltaic settings: a case study from the Ceduna Sub-basin

Presented by: Monica Jiminez Lloreda
Australian School of Petroleum and Energy Resources, University of Adelaide

Summary:

Kinematics of gravity-driven normal faults exerts a critical control on petroleum systems in deltaic settings but to date have not been extensively examined. The Ceduna Sub-basin (CSB) is a passive margin basin containing the White Pointer (Albian-Cenomanian) and Hammerhead (Campanian-Maastrichtian) delta systems that detach on shale layers of Albian-Cenomanian and Turonian-Coniacian ages, respectively. We present evidence for spatially variable fault growth styles based on interpretation of the Ceduna 3D seismic survey and fault kinematic analyses using displacement-distance, displacement-depth, and Expansion Index methods. We identified faults that continuously grew either between the Cenomanian-Santonian or Santonian and the Maastrichtian located throughout the study area, and faults that exhibit growth between the Cenomanian-Maastrichtian that are geographically separated into three areas according to their evolution histories: (i) Northern CSB faults exhibit constant growth between the Cenomanian and Maastrichtian. (ii) Central CSB faults show two dip linkage intervals between (a) Cenomanian and Coniacian-Late Santonian, (b) Coniacian-Late Santonian and Late Santonian–Maastrichtian segments, respectively. (iii) Central and southern CSB faults exhibit dip-linkage intervals between Cenomanian-Early Santonian and Late Santonian-Maastrichtian segments. Our study demonstrates a relationship between the location of the Cenomanian-Maastrichtian faults and their evolution history suggesting constant growth evolution at north and dip-linkage at the central and south areas.

Event Details:

Technical Luncheon, Ayers House at 12:00pm, for a 12:30pm start. Includes a 2-course lunch and drinks.

Bookings close Monday , 25th October at 1pm. Any late bookings will incur an additional $10 fee. Strictly no walk-ins

Details

Date:
Thursday, 28 October
Time:
12:00 pm - 1:30 pm
(Australia/Adelaide time)
Cost:
Free – $70.00
Event Categories:
  • Venue

    Ayers House – Henry’s Bar
    288 North Terrace
    Adelaide, SA 5000 Australia

    Organizer

    PESA SA/NT

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