Primary basins and their boundaries in the deep-water northern Gulf of Mexico: Origin, trap types, and petroleum system implications

Allochthonous salt initiation and advance in the northern Flinders and eastern Willouran ranges, South Australia: Using outcrops to test subsurface-based models from the northern Gulf of Mexico

“…The eastern Willouran Ranges contain two large hour-glass shaped primary diapirs, two flanking primary minibasins, and a multilevel allochthonous canopy with several secondary diapirs and an encased minibasin (e.g., Pilcher et al, 2011;Rowan and Inman, 2011) . Geologic map of the northwestern end of the Patawarta diapir based on Coats (1973) and Hall et al (1986), and modified with new field work by Gannaway (2014).…”

Occurrence and nature of “bottom simulating reflectors” in the northern Gulf of Mexico

“…The lower slope of southern Keathley Canyon (KC) and Walker Ridge (WR) is characterized by a thick, continuous salt canopy which is fed by a combination of numerous vertical salt stocks and the allochthonous lateral movement of extensive salt canopies (e.g., Pilcher et al, 2011). The absence of an extensive through-going fault network, such as observed near the flanks of diapiric salt features on the upper slope, reduces the opportunity for significant point-sourced gas accumulations in the GHSZ.…”

Gas hydrate resource potential in the Terrebonne Basin, Northern Gulf of Mexico

“…Primary depositional loading by Mesozoic and Lower Tertiary sediments (e.g. Pilcher et al, 2011) forced first the vertical migration of Louann Salt into domes and later, lateral migration as allochthonous sheets. Secondary depositional basins formed in the north central GOM as sedimentation accelerated during the Miocene (w20 mya), largely as a result of the effectiveness of the Mississippi River as a deepwater sediment delivery system.…”