A Playa Lake Usuallycontains Laminated Mudstone

Ripple and horizontally laminated mudstone clayey siltstone and very fine to fine grained sandstone in beds 0 1 to 0 5 m thick.

A playa lake usuallycontains laminated mudstone.

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. Red and green well laminated mudstone with very thin cm fine to medium grained sandstone layers. Rare bioturbation palaeosols.

The playa lake depositional model for the three forks formation beatriz garcia fresca. Sedimentary successions are interpreted as having accumulated in a playa lake complex. Deposits include three sedimentary facies. 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. Flash cards for geol 221 history of the earth with heck at ferris state fsu. 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. Playa lake depositional environment modern hardie et al.

Sedimentary successions are interpreted as having accumulated in a playa lake complex. 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. Laminate with horizontal bedding and vertical trace fossils. Fine grained well sorted mudstone to packstone.

A laminated siltstone and mudstone. The facies is divided into two subfacies that are gradational. Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5. B current rippled cross.

Comprised of 20 to 70 cm thick thinning and fining upward sequences. Deposition in distal terminal splay and shallow ephemeral playa lakes. B current rippled cross laminated very. Deposits include three sedimentary facies.