4,231
edits
Changes
Jump to navigation
Jump to search
Line 32:
Line 32: − +
Sea level cycle phase and systems tracts (view source)
Revision as of 21:25, 30 July 2014
, 21:25, 30 July 2014→Lowstand systems tracts
==Lowstand systems tracts==
==Lowstand systems tracts==
The lowstand systems tract occurs between the basal sequence boundary and the transgressive surface. Lowstand systems are thickest toward basin centers because much of the basin margin is undergoing erosion. Lowstand systems with shelf-to-slope geometries may have basin center gravity-flow deposits due to sediment bypass of the slope and thick shelf-edge deltaic systems prograding into deep water. Fluvially dominated depositional systems are common.
The lowstand systems tract occurs between the basal sequence boundary and the transgressive surface. Lowstand systems are thickest toward basin centers because much of the basin margin is undergoing erosion. Lowstand systems with shelf-to-slope geometries may have basin center gravity-flow deposits due to sediment bypass of the slope and thick shelf-edge deltaic systems [[Depocenter#Sediment_supply_rate_and_facies_patterns|prograding]] into deep water. Fluvially dominated depositional systems are common.
==Transgressive systems tracts==
==Transgressive systems tracts==