Seismic evidence of evaporite diapirs in the Chukchi Sea, Alaska

Abstract

Research Article| May 01, 1991 Seismic evidence of evaporite diapirs in the Chukchi Sea, Alaska Dennis K. Thurston; Dennis K. Thurston 1Minerals Management Service, 949 East 36th Avenue, Anchorage, Alaska 99508 Search for other works by this author on: GSW Google Scholar Richard T. Lothamer Richard T. Lothamer 1Minerals Management Service, 949 East 36th Avenue, Anchorage, Alaska 99508 Search for other works by this author on: GSW Google Scholar Author and Article Information Dennis K. Thurston 1Minerals Management Service, 949 East 36th Avenue, Anchorage, Alaska 99508 Richard T. Lothamer 1Minerals Management Service, 949 East 36th Avenue, Anchorage, Alaska 99508 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1991) 19 (5): 477–480. https://doi.org/10.1130/0091-7613(1991)019<0477:SEOEDI>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Dennis K. Thurston, Richard T. Lothamer; Seismic evidence of evaporite diapirs in the Chukchi Sea, Alaska. Geology 1991;; 19 (5): 477–480. doi: https://doi.org/10.1130/0091-7613(1991)019<0477:SEOEDI>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract An area of ∼500 km2 on the central Chukchi shelf contains diapirs and related structural features, including withdrawal synclines, pillow structures, and radial faults. These features were formed during Cretaceous and Tertiary time. The diapirs rise to the sea floor from a large north-trending graben of Tertiary age and pierce more than 5500m of overlying Mesozoic and Cenozoic strata. The diapirs exhibit a columnar cross section and a circular plan view in their upper part, but are continuous or ridgelike near their base. Mobile material appears to emanate from strata of the upper Paleozoic lower Ellesmerian sequence which floor the graben. On the basis of seismic stratigraphy, structural associations, and morphology, we propose that these diapirs are composed of mobilized upper Paleozoic evaporites. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.