Nope, it's breccia.
No, conglomerate is a type of sedimentary rock made up of rounded gravel-sized particles. The particles in conglomerate are typically larger than sand grains and are often well-rounded due to the transportation and deposition processes that occur before the rock forms.
Large angular rock fragments describes an agglomerate. This usually happens in volcanic vents.
Conglomerate
Volcanic fragments are small pieces of rock that come from a volcano. Fragments are usually thrown in the air during a volcanic eruption.
Breccia is a clastic sedimentary rock composed of various sized visible pieces of other rock, cemented together by the processes of lithification. The pieces of rock that are visible are angular fragments, meaning they have somewhat jagged edges. This means that the fragments in the breccia did not travel far before they were deposited. If they had traveled longer and further they would have become rounded, in which case the resulting sedimentary rock would have been called conglomerate.
== == 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.
conglomerate
Conglomerate rocks are coarse grained sedimentary rocks wherein large rounded sediments are found. These rounded sediments are referred to as gravel.
Conglomerate
Breccia.
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Conglomerate
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Conglomerate is one of two similar rocks not to be confused. The large 'grains' are rounded as a result of their formation, and indeed the formation of the rock. Conglomerate is not to be confused with Breccia, a similar rock formed in very different circumstances. Breccia fragments tend to be smaller, but most of all are always angular.
Because the pieces of rock are eroded a it passes down to the bottom of the river.
This type of rock is called a conglomerate if the other chunks are rounded and greater than about 2mm in size. If the chunks are angular, it is called a breccia.