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.

A playa lake usuallycontains laminated mudstone.

Skeletal and oolitic grindstone cross bedding and ripple marks. Deposition in distal terminal splay and shallow ephemeral playa lakes. A laminated siltstone and mudstone. Een mudstone stone laminated tone mudstone d d stone trix d b reccia red e 5.

Flash cards for geol 221 history of the earth with heck at ferris state fsu. Sedimentary successions are interpreted as having accumulated in a playa lake complex. A laminated siltstone and mudstone. Playa lake depositional environment modern hardie et al.

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. Red and green well laminated mudstone with very thin cm fine to medium grained sandstone layers. Sedimentary successions are interpreted as having accumulated in a playa lake complex.

B current rippled cross laminated very. 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. Mudcracks starved ripples are common. Fine grained well sorted mudstone to packstone.

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

Comprised of 20 to 70 cm thick thinning and fining upward sequences. Laminate with horizontal bedding and vertical trace fossils. Deposits include three sedimentary facies. The facies is divided into two subfacies that are gradational.