What indicates that the lava flows associated with Crater Mountain (and the other Mono Craters) were viscous?

Look at the following volcanoes (note that the maps are of several different scales):
• Mount Vsevidof (53°07'35"N, 168°41'16"W), a composite volcano in Alaska (shown on Map T-2, Map T-21b, and Figure 34-2)
• Crater Mountain (37°52'42"N, 119°00'25"W), the highest peak of the Mono Craters, a chain of rhyolitic plug dome volcanoes in California (shown on Maps T-23a and T-23c)
• SP Mountain (35°34'56"N, 111°37'55"W), a basaltic cinder cone in Arizona (shown on Maps T-22a and T-22b and Figure 34-3)
• Mauna Loa (19°28'17"N, 155°35'41"W), a large shield volcano on the Big Island of Hawai‘i (shown on Maps T-1 and T-21a)

What will be an ideal response?


The lava flows are thick and steep sided.

Environmental & Atmospheric Sciences

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What will be an ideal response?

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Answer the following statement true (T) or false (F)

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