The AAPG/Datapages Combined Publications Database

AAPG Bulletin


AAPG Bulletin; Year: 2018; Issue: December
DOI: 10.1306/05111817254

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Figure 8. Seismic reflection line showing a progradational Jurassic shelf–slope wedge in the Hanna trough downlapping the flattened intra-Jurassic unconformity. This unit is interpreted as the first phase of sediment delivery from the emerging highland (early Brooks Range) along the paleo-Pacific margin in the northeast. Note also downlapping reflectors between the base Cretaceous unconformity and the top Lower Cretaceous shelf–slope wedge. This unit marks a period of increased sediment supply following closure of the South Anyui ocean and was probably sourced from Chukotka. See Figures 1 and 6 for line location.

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