lapilli tuff meaning in Hindi

Examples

1. The lava flows are layered, separated by a thin layer of lapilli tuff and reddened breccia.
2. In outcrops, lapilli tuff beds have also been identified in close association with the diamictite of the Squantum Member.
3. The lower part of the formation consists of unwelded and highly compacted lapilli tuff with abundant amounts of pumice fragments.
4. These rocks are quite indurated and tough, as opposed to non-welded lapilli tuffs, which are unconsolidated and easily eroded.
5. Most lapilli tuffs which remain in ancient terrains are formed by the accumulation and " welding " of semi-molten lapilli into what is known as a welded tuff.
6. Lapilli tuffs are a very common form of volcanic rock typical of rhyolite, andesite and dacite pyroclastic eruptions, where thick layers of lapilli can be deposited during a basal surge eruption.