What Type Of Boundary Is Granitic Lava At

Eruptions of granitic magma can produce rhyolite pumice obsidian or tuff.

What type of boundary is granitic lava at. Whether a pyroclastic flow occurs or not b. This type of lava formed when it comes out of cracks in the ocean floor. Whether the lava flow is fast or slow c. Pahoehoe forms when the effusion rate is low and consequently the velocity of lava flow is slow 2 pahoehoe lava flow is usually at least 10 times slower than typical aa lava flow 5 higher effusion rate results in lava flow being shattered which is how the rubbly and clinkery aa lava surface forms.

Effusive eruptions produce rhyolite or obsidian if the lava cools rapidly. Whether the eruption occurs at a plate boundary or hotspot d. Volcanoes can occur at. Other articles where granitic magma is discussed.

First of all you should know the difference between lava and magma magma and lava are both molten liquid rock but magma is moltenrock produced underneath earth surface while it magma erupts on the surface of earth it is called lava. Basaltic magma contains between 45 and 55 percent silicon dioxide and is high in magnesium iron and calcium while granitic magma contains between 65 and 75 percent silicon dioxide and only small amounts of those minerals. Granite definition a coarse grained igneous rock composed chiefly of orthoclase and albite feldspars and of quartz usually with lesser amounts of one or more other minerals as mica hornblende or augite. Granitic in composition b.

These rocks have similar compositions but different cooling conditions. One major difference between basaltic and granitic magma is their specific mineral contents. What is the relationship between temperature and viscosity. Whether the lava is basaltic or granitic in nature.

The most common type of volcanic eruption occurs when magma the term for lava when it is below the earth s surface is released from a volcanic vent. Which type of basaltic lava flow has its surface covered with sharp edged angular blocks and rubble. Pahoehoe is a smooth and continuous lava crust. These volcanic features form when highly viscous granitic lava.

Explosive eruptions produce tuff or pumice. Related to a divergent plate boundary c. Andesitic in composition. Basaltic in composition c.

Related to a transform plate boundary d. Granitic or rhyolitic magmas and andesitic magmas are generated at convergent plate boundaries where the oceanic lithosphere the outer layer of earth composed of the crust and upper mantle is subducted so that its edge is positioned below the edge of the continental plate or. Continental divergent plate boundary and hot spots. Eruptions can be effusive where lava flows like a thick sticky liquid or explosive where fragmented lava explodes out of a vent.

What is a factor in what type of volcanic eruption occurs.