Evolution of the Exmouth-Barrow carbonate margin through the Miocene: Insights from 3D seismic data and field investigations (North West Shelf, Australia)

• DOI: 10.1016/j.sedgeo.2023.106371
• Publication Date: 2023-03-23T01:38:14Z
• Authors: Rosine Riera; Victorien Paumard; Julien Bourget; Tony Allan; Ulysse Lebrec
• Keywords: Siliciclastic; Outcrop; Sabkha; Progradation; Palaeogeography; Continental Margin; Carbonate platform; Passive margin

Carbonate margins are records of the palaeoclimatology, palaeoceanography and palaeogeography continental shelves, their study can help identify both regional global palaeoenvironmental changes. This documents evolution Exmouth-Barrow margin, which one largest ramp to rimmed platform transition documented yet, throughout Miocene. The research is based on integration onshore outcrops, offshore wells 3D seismic data. margin be divided in four main phases, including: (1) progradation carbonate clinoforms, forming a depositional ramp, during early Miocene; (2) sabkha development extensive dolomitization, concomitant with Miocene Climatic Optimum; (3) formation barrier-lagoon system associated slope channels middle (4) onset dominantly siliciclastic sedimentation from end onward. Overall, this illustrates how outcrops data integrated reconstruct stratigraphic providing precise but local information, while allow basin-scale reconstruction palaeolandscape.