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Mount St Helens produces blocky lava.
The lava is pahoehoe Lava.
Not necessarily. All pahoehoe is basaltic, but not all basaltic lava is pahoehoe. A'a and scoria are also basaltic.
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
Pahoehoe is faster moving lava and AA is slower moving lava. Both types are found in basaltic type eruptions. They have different appearances. Pahoehoe is smooth and ropey where as AA is chunky and rough.(much like top of trees) Often a pahoehoe flow can change to an AA flow depending upon the type of slope it encounters. The steeper the slope the more likely AA lava will be present. Aa has more viscosity than Pahoehoe.
Mount St Helens produces blocky lava.
Pahoehoe
The difference between Pahoehoe lava and AA lava is that pahoehoe lava is smooth and AA lava is jagged.
Lava tubes are usually produces by pahoehoe.
The lava is pahoehoe Lava.
Pahoehoe is fast-moving,hot lava that has low viscosity.
Not necessarily. All pahoehoe is basaltic, but not all basaltic lava is pahoehoe. A'a and scoria are also basaltic.
Both pillow lava and pahoehoe lava have about the same composition and harden into a kind of rock called basalt.
Pahoehoe is faster moving lava and AA is slower moving lava. Both types are found in basaltic type eruptions. They have different appearances. Pahoehoe is smooth and ropey where as AA is chunky and rough.(much like top of trees) Often a pahoehoe flow can change to an AA flow depending upon the type of slope it encounters. The steeper the slope the more likely AA lava will be present. Aa has more viscosity than Pahoehoe.
Mt. Fuji is Japan's highest mountain. The lava that comes out of this volcano is silica-poor lava that is very thick and chunky.
Pahoehoe is a type of basaltic lava flow. The kind of eruption that causes pahoehoe is a quiet volcanic eruption.
it is made up of igneous rocks, magma,and hot lava