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agglomerate |
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agglomerateLarge, coarse, angular rock fragments associated with lava flow that are ejected during explosive volcanic eruptions. Although they may appear to resemble sedimentary conglomerates, agglomerates are igneous rocks that consist almost wholly of angular or rounded lava fragments of varying size and shape. Some geologists sort agglomerates into bombs, blocks, and breccia. Bombs are ejected in a molten state, becoming rounded upon solidification, and blocks are erupted as solid fragments. Upon accumulation and solidification of the angular fragments (also known as pyroclastics), they form agglomerates. agglomerate a rock consisting of angular fragments of volcanic lava agglomerate [ə′gläm·ə·rət] (geology) A pyroclastic rock composed of angular rock fragments in a matrix of volcanic ash; typically occurs in volcanic vents. (metallurgy) A rigid mass of metallic particles that have been joined together by a powder metallurgical technique, such as sintering. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In
hierarchical centroid cluster analysis, an agglomerative procedure
begins with each observation (pattern in this case) being a cluster. This growth from town house to agglomerative element colonizing an
urban block is phenomenal, but Taniguchi nevertheless attempts to retain
something of the domestic scale of MoMA's original facilities. The agglomerative hierarchical cluster method starts with a
separate cluster for each product and combines the closest products into
a cluster. |
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