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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.
Pahoehoe is a type of basaltic lava flow. The kind of eruption that causes pahoehoe is a quiet volcanic eruption.
pahoehoe basaltic lava
A rope shaped or billowy shaped flow is a form of basaltic lava known as Pahoehoe.
Pahoehoe lava.
Pahoehoe
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.
Pahoehoe is a type of basaltic lava flow. The kind of eruption that causes pahoehoe is a quiet volcanic eruption.
pahoehoe basaltic lava
A rope shaped or billowy shaped flow is a form of basaltic lava known as Pahoehoe.
Mount Rainier has built a composite cone.
Pahoehoe
Pahoehoe
Pahoehoe lava.
Mount Rainier is a stratovolcano.
High effusion rates
Kilauea produces a'a and pahoehoe lava flows.