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How does pillow basalt form?
Pillow basalt is formed when lava extrudes from the ocean floor - perhaps into a sediment overburden (?) - such that each bolus of lava is separate from the others.
Pillow lava is the result of what type of eruption?
Pillow lava is formed from a relatively low effusion rate. It erupts from either an underwater vent (opening in which gas and other volcanic material can pass) lava flowing into the ocean.
What is pillow lava?
Pillow lava is basaltic lava that forms rounded pillow like lumps. It forms when a volcano erupts fairly deep underwater. Lava erupts bu quickly crusts over, creating a bulbous formation. The crust then breaks and more lava spills out, continuing the process.See the link below for a video of pillow lava.
How does rising magma and flowing lava create underwater pillow lava?
Because the magma is erupted into the cold water, the outside of the flow quickly cools and solidifies into a hard shell which causes the backside flow to seek a new, less resistant pathway. When the flow is pinched off before re-routing, a bulbous pillow shaped, rapidly cooling blob is formed. Most of the ocean floor laying under layers of sediment and sedimentary rock, is formed from masses of pillow lavas (basalt).
How are Pillow Lava and Pahoehoe lava the same?
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
How does pillow basalt form?
Pillow basalt is formed when lava extrudes from the ocean floor - perhaps into a sediment overburden (?) - such that each bolus of lava is separate from the others.
Pillow lava is the result of what type of eruption?
Pillow lava is formed from a relatively low effusion rate. It erupts from either an underwater vent (opening in which gas and other volcanic material can pass) lava flowing into the ocean.
What is pillow lava?
Pillow lava is basaltic lava that forms rounded pillow like lumps. It forms when a volcano erupts fairly deep underwater. Lava erupts bu quickly crusts over, creating a bulbous formation. The crust then breaks and more lava spills out, continuing the process.See the link below for a video of pillow lava.
How hot is pillow lava?
pillow lava is 2500 degrees
How does rising magma and flowing lava create underwater pillow lava?
Because the magma is erupted into the cold water, the outside of the flow quickly cools and solidifies into a hard shell which causes the backside flow to seek a new, less resistant pathway. When the flow is pinched off before re-routing, a bulbous pillow shaped, rapidly cooling blob is formed. Most of the ocean floor laying under layers of sediment and sedimentary rock, is formed from masses of pillow lavas (basalt).
What is formed by magma cooling?
Intrusive igneous rock is formed when magma or lava cools quickly.
How are Pillow Lava and Pahoehoe lava the same?
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
Does pillow lava have high silica?
No. Pillow lava is basaltic, so it has a low silica content.
How did pillow lava get its name?
Pillow lava got it's name by the it looks. It looks like pillows.
Does Krakatoa make pillow lava?
No. Pillow lava is basaltic, low-viscosity lava. Krakatoa is a stratovolcano with a style of ereuption more characteristic of high-viscosity andesitic lava.
Where would you expect to find pillow lava in the modern world?
in a volcano Pillow lava forms only when lava emerges from a place that is submerged under water.
What Type of Lava usually flows out of oceanic volcanoes?
mafic lava
