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How do rhyolitic magma or lava and basaltic lava differ?
rhyolitic mama is associated with explosive volcanism and is ejected (blown out of) a volcano rapidly. Basaltic lavas are released during effusive volcanism that is not explosive, such as hawaii where the lave "flows" into the ocean slowly. Basaltic lavas have a lower silica content as well.
What type of volcano forms when layers of basaltic lava accumulate during a nonexplosive eruption?
A shield volcano forms when layers of basaltic lava accumulate during a nonexplosive eruption. These volcanoes have gentle sloping sides and are usually characterized by their broad and flat shapes. Mauna Loa in Hawaii is a well-known example of a shield volcano.
What gases are Emitted during volcanism?
gases emitted during volcano eruptions are basically oxides of shulphur,etc
What animal is abundant in Antarctica during the summer?
The human animal is most abundant in Antarctica during the summer. As well several sea mammals and sea birds come to the beaches and beach areas to breed during the summer.
During the Mesozoic era what were the most abundant land vertebrates?
Dinosaurs
What is an extinct arthropod called that was abundant during the paleozoic era?
Trilobite
When did the Labyrinthodont dinosaur live in Antarctica?
They were abundant on Earth during the Carboniferous.
What type of volcano has small basaltic cones built during one short eruptive episode?
A scoria cone volcano, also known as a cinder cone volcano, is the type of volcano that has small basaltic cones built during one short eruptive episode. These volcanoes are characterized by their steep sides and formed by the accumulation of volcanic debris, such as scoria and ash, ejected during explosive eruptions.
The basaltic rock that forms volcanic mountains where mantle plumes reach earths surface is usually composed of what?
The basaltic rock that forms volcanic mountains where mantle plumes reach the Earth's surface is typically composed mainly of silicate minerals, particularly pyroxene and plagioclase feldspar. It often contains smaller amounts of olivine and iron-rich minerals. This composition gives basalt its characteristic dark color and low viscosity, allowing it to flow easily during volcanic eruptions.
What are two elements which are abundant in nebulae?
Ionized hydrogen and helium are the most abundant chemical elements in nebulae.
What type of lava does Mt Etna have?
Mt Etna, one of the most active volcanoes in the world, primarily produces basaltic lava. This type of lava is low in silica content, which makes it relatively fluid and able to flow long distances. Etna's eruptions can range from effusive, producing lava flows, to explosive, producing ash plumes and pyroclastic flows.
What era are mammoths and mastadons abundant in?
Mammoths and mastodons were abundant 10,000 years ago. Currently, we live in the Cenozoic era, which began 65.5 million years ago. Therefor, mammoths and mastodons were abundant in the Cenozoic era.
