Matches in SemOpenAlex for { <https://semopenalex.org/work/W2760303815> ?p ?o ?g. }
- W2760303815 endingPage "1096" @default.
- W2760303815 startingPage "1067" @default.
- W2760303815 abstract "Abstract Submarine landslides, including the basal shear surfaces along which they fail, and their subsequent infill, are commonly observed in modern seabed and seismic reflection data sets; their resultant relief impacts sediment routing and storage patterns on continental margins. Here, three stacked submarine landslides are documented from the Permian Ecca Group, Laingsburg depocentre, Karoo Basin, South Africa, including two superimposed lateral margins. The stratigraphic framework includes measured sections and correlated surfaces along a 3 km long, 150 m high outcrop. Two stacked 2·0 to 4·5 km wide and 90 m and 60 m deep erosion surfaces are recognized, with lateral gradients of 8° and 4°, respectively. The aim of this study was to understand the evolution of a submarine landslide complex, including: evolution of basal shear surfaces/zones; variation of infill confinement; and location of the submarine landslides in the context of basin‐scale sedimentation and degradation rates. Three stages of formation are identified: (i) failure of submarine landslide 1, with deposition of unconfined remobilized deposits; (ii) failure of submarine landslide 2, forming basal shear surface/zone 1, with infill of remobilized deposits and weakly confined turbidites; and (iii) failure of submarine landslide 3, forming basal shear surface/zone 2, with infill of remobilized deposits and confined turbidites, transitioning stratigraphically to unconfined deposits. The expression of basal shear varies laterally, from metres thick zones in silt‐rich strata to sharp stepped surfaces in sand‐rich strata. Faulting and rotation of overlying bedding suggest that the shear surfaces/zones were dynamic. Stacking of landslides resulted from multi‐phase slope failure, increasing down‐dip topography and confinement of infilling deposits. The failure slope was probably a low supply tilted basin margin evidenced by megaclast entrainment from underlying basin‐floor successions and the lack of channel systems. This study develops a generic model of landslide infill, as a function of sedimentation and degradation rates, which can be applied globally." @default.
- W2760303815 created "2017-10-06" @default.
- W2760303815 creator A5043420934 @default.
- W2760303815 creator A5053128114 @default.
- W2760303815 creator A5063070770 @default.
- W2760303815 creator A5064783580 @default.
- W2760303815 creator A5087664515 @default.
- W2760303815 date "2017-12-05" @default.
- W2760303815 modified "2023-09-26" @default.
- W2760303815 title "Exhumed lateral margins and increasing flow confinement of a submarine landslide complex" @default.
- W2760303815 cites W1146091539 @default.
- W2760303815 cites W1483157968 @default.
- W2760303815 cites W1500659276 @default.
- W2760303815 cites W1508694051 @default.
- W2760303815 cites W1533430556 @default.
- W2760303815 cites W1543723585 @default.
- W2760303815 cites W1561833293 @default.
- W2760303815 cites W1575737396 @default.
- W2760303815 cites W1582082738 @default.
- W2760303815 cites W1599682259 @default.
- W2760303815 cites W1784577597 @default.
- W2760303815 cites W1813037839 @default.
- W2760303815 cites W1908834558 @default.
- W2760303815 cites W1945302183 @default.
- W2760303815 cites W1946903353 @default.
- W2760303815 cites W1964701267 @default.
- W2760303815 cites W1966473864 @default.
- W2760303815 cites W1972506182 @default.
- W2760303815 cites W1977385910 @default.
- W2760303815 cites W1978129550 @default.
- W2760303815 cites W1980536885 @default.
- W2760303815 cites W1980802579 @default.
- W2760303815 cites W1980910208 @default.
- W2760303815 cites W1981181170 @default.
- W2760303815 cites W1986002199 @default.
- W2760303815 cites W1986700355 @default.
- W2760303815 cites W1991584328 @default.
- W2760303815 cites W1993321148 @default.
- W2760303815 cites W1994654266 @default.
- W2760303815 cites W1995271023 @default.
- W2760303815 cites W1995446517 @default.
- W2760303815 cites W2005321165 @default.
- W2760303815 cites W2005480194 @default.
- W2760303815 cites W2008549661 @default.
- W2760303815 cites W2014960050 @default.
- W2760303815 cites W2017905720 @default.
- W2760303815 cites W2018002319 @default.
- W2760303815 cites W2021022927 @default.
- W2760303815 cites W2023184798 @default.
- W2760303815 cites W2027659383 @default.
- W2760303815 cites W2027950760 @default.
- W2760303815 cites W2028329924 @default.
- W2760303815 cites W2029688893 @default.
- W2760303815 cites W2031117241 @default.
- W2760303815 cites W2031246800 @default.
- W2760303815 cites W2031871643 @default.
- W2760303815 cites W2032101789 @default.
- W2760303815 cites W2033603247 @default.
- W2760303815 cites W2034803743 @default.
- W2760303815 cites W2038761199 @default.
- W2760303815 cites W2042402388 @default.
- W2760303815 cites W2044174965 @default.
- W2760303815 cites W2044247406 @default.
- W2760303815 cites W2045019697 @default.
- W2760303815 cites W2045149940 @default.
- W2760303815 cites W2046540047 @default.
- W2760303815 cites W2048050179 @default.
- W2760303815 cites W2049355487 @default.
- W2760303815 cites W2049585529 @default.
- W2760303815 cites W2054226696 @default.
- W2760303815 cites W2057298988 @default.
- W2760303815 cites W2058609383 @default.
- W2760303815 cites W2059220646 @default.
- W2760303815 cites W2059869009 @default.
- W2760303815 cites W2063258602 @default.
- W2760303815 cites W2067122595 @default.
- W2760303815 cites W2069724073 @default.
- W2760303815 cites W2073099001 @default.
- W2760303815 cites W2073737417 @default.
- W2760303815 cites W2075251787 @default.
- W2760303815 cites W2075257506 @default.
- W2760303815 cites W2077737463 @default.
- W2760303815 cites W2078502825 @default.
- W2760303815 cites W2079173265 @default.
- W2760303815 cites W2081055779 @default.
- W2760303815 cites W2084559714 @default.
- W2760303815 cites W2084960798 @default.
- W2760303815 cites W2090149204 @default.
- W2760303815 cites W2090867255 @default.
- W2760303815 cites W2092456394 @default.
- W2760303815 cites W2098699183 @default.
- W2760303815 cites W2100674859 @default.
- W2760303815 cites W2104587400 @default.
- W2760303815 cites W2106050176 @default.
- W2760303815 cites W2108282299 @default.
- W2760303815 cites W2108784130 @default.
- W2760303815 cites W2109395173 @default.
- W2760303815 cites W2114577928 @default.