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A shield volcano is a type of volcano named for its low profile, resembling a shield lying on the ground. It is formed by the eruption of highly fluid (low viscosity ) lava , which travels farther and forms thinner flows than the more viscous lava erupted from a stratovolcano .
This list of shield volcanoes includes active, dormant and extinct shield volcanoes. Shield volcanoes are one of the three types [ specify ] of volcanoes. They have a short cone shape, and have basaltic lava which means the lava has low viscosity (viscosity is a measure of the ability for a liquid to flow)
This page contains stratovolcanoes that have the characteristics of shield volcanoes Pages in category "Stratovolcanoes with shield volcano characteristics" The following 10 pages are in this category, out of 10 total.
This is because it is more favorable for the emulsifying agent to be at an interface so reducing the interfacial area requires expending energy to return the emulsifying agent to the bulk. Stability of the Macroemulsions are based on numerous environmental factors including temperature, pH, and the ionic strength of the solvent.
Polygenetic shield volcanoes (4 C, 137 P) Q. Quaternary shield volcanoes (2 C) S. Stratovolcanoes with shield volcano characteristics (10 P) Pages in category "Shield ...
The volcanic field covers an area of 1500 km 2, overlying Precambrian metamorphic and plutonic rocks of the Tuareg shield. Many cones are breached, and the dominantly basaltic and basanitic volcanic products are rich in peridotite and pyroxenite xenoliths and megacrysts. The youngest volcanoes rest on Neolithic terraces and are of Holocene age.
The largest landslides from volcanoes are called sector or edifice collapses. [7] Prehistoric sector collapses are preserved in the geological record in the form of debris avalanche deposits and collapse scars. [9] [10] [11] Debris avalanche deposits can be found up to 20 km (12 mi) from the site of collapse.
Emi Koussi seen from International Space Station. In volcanology, a pyroclastic shield or ignimbrite shield is an uncommon type of shield volcano.Unlike most shield volcanoes, pyroclastic shields are formed mostly of pyroclastic and highly explosive eruptions rather than relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano. [1]