Folds caused by gravitational gliding in unconsolidated and soft-sediments are called slump folds. They can form by layer-parallel shear. Such folds reflect the orientation of the palaeoslope in ancient settings. PhotoID799
\nThe photograph was taken from the road section of Eocene Karaj Formation, near Karaj city (with a view to the WNW), 35\u00b0 50\u00b4 11\u02ddN, 51\u00b0 02\u00b4 40\u02ddE. Karaj Formation, ~ 3300 m thick, mainly composed of a heterogeneous assemblage of green tuff and tuffite, thin bands of marine shale, and igneous rocks. The thick turbidites with slump folding in the Karaj Formation may indicate a relatively deep water through and submarine fan. The Z-shaped asymmetric and overturned slump fold indicate northward palaeoslope. These conditions show stage 3 geometries (late translation of slump) of formation and develop of slump fold system by surging flow with flow accelerates and contraction increases downslope.<\/p>\n
Photograph: Seyed Tohid Nabavi<\/p>\n","color":"#81d742","icon":"wm-icon-cave-15","noDetails":false,"noInteraction":false,"image":"http:\/\/outcropedia.be.webmapp.it\/wp-content\/uploads\/2018\/06\/Slump-folding-in-the-Karaj-Formation-768x441.jpg","taxonomy":{"webmapp_category":[219]},"accessibility":{"mobility":{"check":false,"description":""},"hearing":{"check":false,"description":""},"vision":{"check":false,"description":""},"cognitive":{"check":false,"description":""},"food":{"check":false,"description":""}},"source":"http:\/\/outcropedia.be.webmapp.it\/wp-json\/wp\/v2\/poi\/2268","web":"http:\/\/outcropedia.be.webmapp.it\/poi\/slump-folding-in-the-karaj-formation\/","addr:street":"","addr:housenumber":"","addr:postcode":"","addr:city":"","contact:phone":"","contact:email":"","opening_hours":"","capacity":"","related":{"poi":{"neighbors":[],"related":[]}}},"geometry":{"type":"Point","coordinates":[50.966125490376726,35.85010031851634]}}