Science Quiz / HCHS/HCMS Volcano Terms

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Type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris, and water.
Geochronological technique using discrete layers of tephra (ash from a single eruption) to create a chronological framework for paleoenvironmental or archaeological records
Clastic rocks composed solely or primarily of volcanic materials
An older volcano with a large crater that can be up to 62 miles wide/in this crater many new craters are form/Yellowstone, Crater Lake
Volcano usually built entirely of fluid lava flows, named for thier large size and low profile/Mauna Loa, Mauna Kea, Erta Ale, KÄ«lauea, Fernandina Island
Fumarole also called a paint pot when colorful with limited water/usually takes the form of a pool of bubbling mud
Techniques developed by Chris Turney & others for extracting tephra horizons invisible to the naked eye
Roughly circular mound shaped protrusion resulting from the slow ectrusion of viscous lava from a volcano
Behave similarly to aa flows, but it's more viscous nature causes the surface to be covered in smooth-sided angular fragments
Small scale features formed by lava accumulation around a small vent on a volcanic edifice/formed from tephra (ash) & tuff thrown from explosive vent/also called 'scoria cone'
Theory that supereruption of namesake volcano 75,000 yrs ago on Sumatra led to global volcanic winter that nearly led to extinction of humans/very controversial
Fumarole that emits sulfurous gases
Lava structure typically formed when lava emerges from an underwater volcanic vent or a lava flow enters the ocean, very common
Conical volcano built up by many layers of hardened lava,tephra,pumice, and volcanic ash/Rainier, Shasta, Pinatubo, Fuji, and Vesuvius
Basaltic lava that has a smooth, billowy, undulating or ropy surface
Meaning stony rough lava, characterized by a rough or rubbly surface
Type of rock made of volcanic ash ejected from vent during eruption/compacted thru consolidation/soft rock/used by Romans & on Easter Island heads/igneous or sedimentary class
Opening in a planet's crust, often in the neighborhood of volcanoes, which emits steam and gases such as CO2, SO2, hydrogen chloride, and hydrogen sulfide/comparable to hot spring
Fragmental material produced by a volcanic eruption regardless of composition, fragment size or emplacement mechanism
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Created Sep 12, 2017ReportNominate
Tags:Related, Term, Volcano

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