A Playa Lake Usuallycontains Laminated Mudstone

Laminate with horizontal bedding and vertical trace fossils.

A playa lake usuallycontains laminated mudstone.

Comprised of 20 to 70 cm thick thinning and fining upward sequences. 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. Mudcracks starved ripples are common. Rare bioturbation palaeosols.

Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5. Playa lake depositional environment modern hardie et al. A laminated siltstone and mudstone. Fine grained well sorted mudstone to packstone.

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. The facies is divided into two subfacies that are gradational. 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. The playa lake depositional model for the three forks formation beatriz garcia fresca.

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. Alluvial fan glacier lake lacustrine meandering stream fluvial desert eolian playa. Deposition in distal terminal splay and shallow ephemeral playa lakes. Red and green well laminated mudstone with very thin cm fine to medium grained sandstone layers.

Skeletal and oolitic grindstone cross bedding and ripple marks. 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. B current rippled cross laminated very.

Sedimentary successions are interpreted as having accumulated in a playa lake complex. Deposits include three sedimentary facies. Sedimentary successions are interpreted as having accumulated in a playa lake complex. B current rippled cross.