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Blocky Lava is thick, viscous lava that does not travel far from the erupting vent. Blocky Lava usually oozes from a volcano past cool layers and forms fragmented, jumbled heaps of sharp-edged, smooth-faceted blocks. Hence the term.

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15y ago

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How are blocky lava and aa lava similar?

Both blocky lava and aa lava are types of viscous, cooler lava flows that form rough, jagged surfaces. They are characterized by their slow movement and blocky appearance due to the solidifying of the lava flow before it fully cools.


Can a stratovolcano erupt blocky lava?

Yes. Stratovolcanoes can erupt blocky lava flows, basaltic lava flows, or may erupt explosively.


What are the three types of lava?

Pahoehoe lava, Aa lava, and Blocky lava


Does Mount St Helens spew pahoehoe pillow Aa or Blocky lava?

Mount St. Helens mainly produces blocky lava (andesitic) during its eruptions. However, the volcano has also had episodes where it spewed pahoehoe lava due to changes in eruptive style.


Is shaving gel similar to blocky lava?

Yes


What is AAA lava?

Lava that hardens into rough , jagged rocks with a crumbly feeling aka blocky lava


What is the geology term AAA?

Aa is a term for a blocky type of lava.


Are all lava flows the same?

No. Lava flows vary in composition. Most lava flows consist of basaltic lava, which can flow as smooth phoehoe or form jagged and broken a'a. Other lava flows are more viscous and will have blocky surfaces and tend to be short and thick.


Why is blocky lava an important clue to the explosiveness of a volcano?

Blocky lava, also known as aa lava, is characterized by its rough, jagged surface and indicates a higher viscosity in the magma. This increased viscosity can trap gases, leading to greater pressure buildup within the volcano. When the pressure is eventually released, it can result in explosive eruptions. Therefore, the presence of blocky lava suggests a greater potential for explosive volcanic activity compared to more fluid lava types.


What type of lava forms rough jagged edges?

A'a lava forms rough jagged edges as it cools and solidifies. It is characterized by its blocky and sharp texture, which can make it difficult to walk on. A'a lava flows tend to move slower compared to pahoehoe lava flows.


What type of lava does Arenal have?

Arenal Volcano in Costa Rica mainly produces basaltic andesite lava. This type of lava is characterized by its intermediate silica content, which results in a thick, slow-moving lava flow.


What does the Hawaiian term AA mean?

In Hawaiian, AA refers to lava that has a rough and jagged texture. It is formed when molten lava cools quickly on the surface, creating sharp, blocky rocks.