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The difference between breccias and conglomerate is that breccias are angular and conglomerates are smooth. What causes rocks to be smooth is transportation, such as when rocks are in a stream and are worn down. Therefore transportation is what causes the difference between breccias and conglomerates.
Breccias are comprised of angular rock fragments that can range in size from pebbles to boulders. While breccias can contain silt-sized particles, their primary distinguishing characteristic is the angular nature of the rock fragments, which differentiates them from other sedimentary rocks.
Breccias and conglomerates are examples of sedimentary rocks composed of angular fragments. Breccias contain coarse fragments while conglomerates contain rounded fragments. They are formed through processes like compaction and cementation of sediments.
Basalts and impact created breccias.
Breccias are a relatively common clastic sedimentary rock.
Silurian greywackes below the unconformity, Devonian red conglomerates/breccias and sandstones above.
Conglomerates are dominantly composed of rounded gravel and breccias are composed of dominantly angular gravel.
Breccia is formed from other rocks that haven't traveled far so they are rough, that is why the rock it's self is so rough.
Breccias belongs to the group of highly fractured or angular structured Igneous Rocks.
Breccias are composed of angular fragments ranging in size, which suggests a high-energy environment where the fragments were transported and deposited rapidly. The angular nature of the fragments indicates minimal transport distance, and the presence of breccias can provide information on the proximity of sediment source areas and the intensity of the depositional environment.
Breccia can be found in areas where there has been significant tectonic activity, such as fault zones and areas near volcanic activity. It can also be found in sedimentary environments, such as along beaches or in caves where rocks are exposed to weathering and erosion.
Conglomerates are dominantly composed of rounded gravel and breccias are composed of dominantly angular gravel.