One showing an igneous nature.
An unconformity is most likely to be found in sedimentary rock, where there is a gap in the geologic record due to erosion or non-deposition of sediments.
non clastic sedimentary rock :)
Soil is a non-example of a sedimentary rock.
Chemical (or non-clastic) sedimentary rock.
Conglomerate is a non-folliated rock. It is a clastic sedimentary rock.
Coal is a sedimentary rock composed of carbon, sulfur, hydrogen, oxygen and nitrogen. Harder forms of coal can be classified as metamorphic rock. Coal is not a metal.
== == A sedimentary rock is formed from sediments deposited by water on the bottom of rivers, lakes, and oceans. The sediments are pieces of earth that have eroded, or worn away and washed downstream into rivers, lakes, and oceans and then settled out. Therefore, a non-sedimentary rock is a rock that isn't sedimentary.
Sandstone is a sedimentary rock as is limestone. Marble is a non-foliated metamorphic rock and granite is a felsic intrusive igneous rock.
silicate and non-silicate
Bituminous coal is a non-foliated rock. It is a sedimentary rock formed from the compaction and alteration of plant material, which does not exhibit any foliation or layering like metamorphic rocks do.
dolomite is a MINERAL. it is NOT considered a sedimentary rock of any kind. sedimentary rocks are composed of minerals, fragments or particles of other rocks(sedimentary, metamorphic and igneous) and/or organic material, and may or may not contain dolomite. to help you understand: if you think of dolomite as a pure element, then sedimentary rocks are mixtures of different elements
Coal is not a rock, but rather a sedimentary organic rock that forms from plant debris. It is comprised of organic matter like carbon, hydrogen, and oxygen, making it different from inorganic rocks which are formed from non-living materials.