Record details

Title
    Evolution of salt diapir and karst morphology during the last glacial cycle : Effects of sea-level oscillation, diapir and regional uplift, and erosion (Persian Gulf, Iran)
Author
    Adamovič, Jiří
    Asadi, Naser
    Bruthans, Jiří
    Churáčková, Zdeňka
    Filippi, Michal
    Fuchs, Markus
    Zare, Mohammad
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Geomorphology
Vol./nr.
    Roč. 121, č. 3-4
Pages
    14
Year
    2010
Thesaurus term
    Persian Gulf
    salt cave
    salt diapir
    salt karst
    uplift rate
Keyword
    Cycle
    Diapir
    During
    Effects
    Erosion
    Evolution
    Glacial
    Gulf
    Iran
    Karst
    Last
    Morphology
    Oscillation
    Persian
    Regional
    Salt
    Sea-level
    Uplift
Abstract (in english)
   Marine, fluvial and cave sediments, and karst phenomena were studied and dated by 14C, U-series, and OSL methods to determine the evolution of the Namakdan diapir and the world's longest salt cave (3N Cave) during the Holocene and the Last Glacial. Sea-level oscillations, the uplift rate of the diapir and its surroundings, and erosion are the main factors influencing the diapir morphology. Although the diapir uplift rate has been constant for the last 50 kyr (4 mm/yr at a distance 600 m from the diapir edge), the uplift rate decreases with the distance from the diapir center. Drag-induced host rock deformation extends for 300 m from the outside edge of the diapir, and host rocks in this zone have an uplift rate of 0.4-0.6 mm/yr, which is 2-3 times greater than the regional uplift rate. Based on known sea-level oscillations, radiometric dating, and geological evidence, the Namakdan diapir was repeatedly flooded by sea water between 130 and 80 kyr BP.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    8. 8. 2012