agglomerate, large, coarse, rock fragments associated with lava flow that are ejected during explosive volcanic eruptions. Although they closely resemble sedimentary conglomerates, agglomerates are pyroclastic igneous rocks that consist almost wholly of angular or rounded lava fragments of varying size and shape.
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Their commonest minerals are olivine, anorthite, hornblende, augite, biotite and leucite. See also ...
A pyroclastic rock in which more than 75% of the pyroclastic fragments exceed 64mm and at least 50% of these are rounded.
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Agglomerate is a volcanic rock, sometimes referred to as a pyroclastic rock and is composed of various large sized pieces of volcanic material which can ...
Aug 15, 2023 · It consists of a mixture of volcanic fragments, including volcanic rocks, pumice, ash, and other pyroclastic materials. The clasts in volcanic ...
Oct 26, 2022 · Agglomerates refer to the accumulation of coarse volcanic material (clasts, lava) and sometimes country rock fragments with at least 75% ...
A vent agglomerate is a coarse grained volcanic rock with rounded to sub-angular fragments. It forms from pyroclastic eruptions and generally fills in the ...
Jul 29, 2023 · Composition and Formation: Agglomerate can consist of a wide variety of clasts, including rocks, minerals, pebbles, and even volcanic fragments.
Agglomerates are typically found near volcanic vents and within volcanic conduits, where they may be associated with pyroclastic or intrusive volcanic breccias.
