Skeletal and oolitic grindstone cross bedding and ripple marks.
A playa lake usuallycontains laminated mudstone.
Rare bioturbation palaeosols.
Deposits include three sedimentary facies.
Flash cards for geol 221 history of the earth with heck at ferris state fsu.
Deposits include three sedimentary facies.
Sedimentary successions are interpreted as having accumulated in a playa lake complex.
Mudcracks starved ripples are common.
Upper regressive lake margin playa lake and mudflat deposits are light to dark gray silty mudstone to argillitic siltstone or very fine grained sandstone mostly thick bedded to massive with desiccation cracks intraformational breccias faint wavy laminations burrows euhedral pyrite grains and dolomite or calcite specks.
A laminated siltstone and mudstone.
A moderately diverse arthropod icnofauna occurs in permian ephemeral lacustrine deposits of the paganzo basin that crop out at bordo atravesado cuesta de miranda western argentina.
Alluvial fan glacier lake lacustrine meandering stream fluvial desert eolian playa.
Upper regressive lake margin playa lake and mudflat deposits are light to dark gray silty mudstone to argillitic siltstone or very fine grained sandstone mostly thick bedded to massive with desiccation cracks intraformational breccias faint wavy laminations burrows euhedral pyrite grains and dolomite or calcite specks.
B current rippled cross laminated very.
Comprised of 20 to 70 cm thick thinning and fining upward sequences.
Deposition in distal terminal splay and shallow ephemeral playa lakes.
Fine grained well sorted mudstone to packstone.
Red and green well laminated mudstone with very thin cm fine to medium grained sandstone layers.
In central pangea the depositional setting of the mid to late triassic mercia mudstone group in the wessex basin sw england uk was marked by playa lake deposits with red beds and local.
Ripple and horizontally laminated mudstone clayey siltstone and very fine to fine grained sandstone in beds 0 1 to 0 5 m thick.
Sedimentary successions are interpreted as having accumulated in a playa lake complex.
Laminate with horizontal bedding and vertical trace fossils.
Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5.
Playa lake depositional environment modern hardie et al.
B current rippled cross.
A laminated siltstone and mudstone.