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No. Basaltic lava has less silica than andesitic lava which makes it less viscous and so basaltic lava flows more easily than andesitic lava.
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Correct order of decreasing magma viscosity?
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.
Which lava is less viscous rhyolitic or basaltic?
Basaltic lava is less viscous.
Are Basaltic lavas are generally hotter and more viscous than andesite lavas?
No. Basaltic lavas are hotter and less viscous than andesitic lavas.
Are Basaltic lavas generally hotter and more viscous than andesite lavas?
Basaltic lavas are hotter, but less viscous than andesitic lavas.
Which type of lava-basaltic lava or rhyolitic lava flows faster and why?
Basaltic flows much faster than rhyolite. Rhyolite is higher viscosity. Find a video of a basaltic lava flow like Hawaii, it flows like water when it's hot. Rhyolite eruptions usually act more like toothpaste if they're slow, or an explosion if fast.
Correct order of decreasing magma viscosity?
The amount of viscosity present in magma depends on the amount of silica it has. A composite volcano produces rhyolitic lava which is very thick. A shield volcano produces a basaltic lava with less silica and significantly less viscosity.
Which lava is less viscous rhyolitic or basaltic?
Basaltic lava is less viscous.
Are Basaltic lavas generally hotter and more viscous than andesite lavas?
Basaltic lavas are hotter, but less viscous than andesitic lavas.
Are Basaltic lavas are generally hotter and more viscous than andesite lavas?
No. Basaltic lavas are hotter and less viscous than andesitic lavas.
How is basaltic lava different from granitic lava?
Basaltic lava is far less viscous, has less silica, erupts at a higher temperature and is denser than granitic lava (properly called rhyolitic lava when it is on the surface). Basaltic lava is composed primarily of pyroxenes and calcium rich plagioclase with small amounts of olivine. Rhyolitic lava primarily contains alkali feldspars and quartz.
Which type of lava-basaltic lava or rhyolitic lava flows faster and why?
Basaltic flows much faster than rhyolite. Rhyolite is higher viscosity. Find a video of a basaltic lava flow like Hawaii, it flows like water when it's hot. Rhyolite eruptions usually act more like toothpaste if they're slow, or an explosion if fast.
What type of magma has a high silica content?
rhyolitic magma has a lot of silica and water vapors... thanks for asking answers.com ;)
What is the consistency of basaltic lava?
No, it is actually one of the less viscous.The viscosity increasing when the composition of Felsic minerals make larger.That is, basalt lavas are more fluent than felsic lavas such as lavas from andesite of rhyolite. Also, the more viscosity, the more explosive.
How do basaltic rhyolitic and andesitic magmas differ?
The difference between basalt lava and andesite lava is the chemical composition. Basalt lava comes from deep in the mantle of the Earth. Andesite's come from shallow sources near the continental plate margin.
Is pahoehoe a type of lava?
No. Mount St Helens would produce block lava flows rather than pahhoehoe or a'a because of the high silica content. Currently there are no lava flows on that volcano but there is a lava dome made primarily of dacite.
What magma is rich in feldspars and silica?
no its the least silica rich of granitic and andesitic magma.
Temperature differences between acidic and basaltic lava?
Acid lava comes from composite cone volcanoes, is slow moving and viscous. Basic lava comes from shield volcanoes, is runny and flows faster. Acidic lava is felsic, or high in quartz and potassium feldspars. Basic lava is mafic, and higher in plagioclase feldspar.
