Sandstone
Conglomerate is typically the coarsest sedimentary rock, consisting of rounded gravel-sized clasts cemented together.
The bottom layer of a sedimentary rock is called the basal layer. This layer is considered the coarsest in the rock.
== == The "coarseness" of a sedimentary rock refers to the rock's textural character, and more particularly, the size of grains contained within it. Thus, a conglomerate containing pebble or cobble clasts is coarser than a sandstone containing sand grains. In the same way, a conglomerate containing boulders is coarser than a conglomerate containing pebbles. Clastic sedimentary rocks are classified using the Wentworth Scale. The coarsest elements of this scale are the Rudites. Boulder rudites are conglomeratic rocks with grains of diameter greater than 256mm. They are the coarsest element described on the Wentworth Scale. There is no upper limit to the scale of sedimentary coarseness, since the size of clast which can be preserved in a sedimentary rocks is potentially very large. 'Olistolith' is a term which describes very large clasts often derived from the sub-sea collapse of oversteepened slopes such as are found at continental margins. Sediments containing olistoliths may reasonably be described as the coarsest sedimentary rocks.
== == The "coarseness" of a sedimentary rock refers to the rock's textural character, and more particularly, the size of grains contained within it. Thus, a conglomerate containing pebble or cobble clasts is coarser than a sandstone containing sand grains. In the same way, a conglomerate containing boulders is coarser than a conglomerate containing pebbles. Clastic sedimentary rocks are classified using the Wentworth Scale. The coarsest elements of this scale are the Rudites. Boulder rudites are conglomeratic rocks with grains of diameter greater than 256mm. They are the coarsest element described on the Wentworth Scale. There is no upper limit to the scale of sedimentary coarseness, since the size of clast which can be preserved in a sedimentary rocks is potentially very large. 'Olistolith' is a term which describes very large clasts often derived from the sub-sea collapse of oversteepened slopes such as are found at continental margins. Sediments containing olistoliths may reasonably be described as the coarsest sedimentary rocks.
Coarse sedimentary rocks like conglomerate and breccia are formed from the deposition and lithification of large fragments or particles such as pebbles, cobbles, or boulders. These fragments are often transported by fast-moving currents like rivers or avalanches, which deposit them in layers that later solidify into coarse sedimentary rocks through the process of compaction and cementation.
ORGANIC SEDIMENTARY ROCK`s : Is a type of sedimentary rock because sedimentary rock has three types of sedimentary rock called clastic , chemical , and organic sedimentary rock so yes ORGANIC SEDIMENTARY ROCK is a type of sedimentary rock..........................................
Clastic sedimentary rock.
a mushroom rock is not a sedimentary rock.
It is then sedimentary rock.
Mechanically formed sedimentary rock , Chemically formed sedimentary rock and Organically formed sedimentary rock.
Sedimentary rock can be formed from lithified sediments.
shale is a sedimentary rock