A Playa Lake Usuallycontains Laminated Mudstone

Alluvial fan glacier lake lacustrine meandering stream fluvial desert eolian playa.

A playa lake usuallycontains laminated mudstone.

Deposits include three sedimentary facies. Deposits include three sedimentary facies. Rare bioturbation palaeosols. Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5.

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. A laminated siltstone and mudstone. Skeletal and oolitic grindstone cross bedding and ripple marks.

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. Deposition in distal terminal splay and shallow ephemeral playa lakes. Laminate with horizontal bedding and vertical trace fossils. The playa lake depositional model for the three forks formation beatriz garcia fresca.

Red and green well laminated mudstone with very thin cm fine to medium grained sandstone layers. 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. Comprised of 20 to 70 cm thick thinning and fining upward sequences. 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.

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. 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. Fine grained well sorted mudstone to packstone. Mudcracks starved ripples are common. A laminated siltstone and mudstone.