Fine grained well sorted mudstone to packstone.
A playa lake usuallycontains laminated mudstone.
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.
Rare bioturbation palaeosols.
Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5.
A laminated siltstone and mudstone.
Skeletal and oolitic grindstone cross bedding and ripple marks.
Alluvial fan glacier lake lacustrine meandering stream fluvial desert eolian playa.
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.
Sedimentary successions are interpreted as having accumulated in a playa lake complex.
B current rippled cross laminated very.
Sedimentary successions are interpreted as having accumulated in a playa lake complex.
Flash cards for geol 221 history of the earth with heck at ferris state fsu.
Playa lake depositional environment modern hardie et al.
A laminated siltstone and mudstone.
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.
The playa lake depositional model for the three forks formation beatriz garcia fresca.
B current rippled cross.
Ripple and horizontally laminated mudstone clayey siltstone and very fine to fine grained sandstone in beds 0 1 to 0 5 m thick.
Laminate with horizontal bedding and vertical trace fossils.
Deposits include three sedimentary facies.
One with mudstone and sandstone in roughly equal proportions fl a the other with a sandstone mudstone ratio of about 5 1 fl b fig.
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.
Comprised of 20 to 70 cm thick thinning and fining upward sequences.
Mudcracks starved ripples are common.
The facies is divided into two subfacies that are gradational.
