Photo Blog #7

 Photo Blog #7






The volcanic geological feature that I chose to visit is the Morro Rock. I visited Morro Rock around 2:35 on Thursday, May 15th.

 



Morro Rock formed over million of years ago and it is a result of a long-extinct volcano's plug. It is part of a chain of nine volcanic peaks known as the "Nine Sisters." It is an igneous extrusive rock primarily composed of dacite.

When Morro Rock was active, it was part of a chain of volcanoes that erupted between 20 and 26 million years ago.




Yes, Morro Rock has physical characteristics of an igneous rock, specifically an igneous extrusive rock. Morro Rock is mainly composed of dacite rock, which is formed by the cooling of magma at or near the Earth's surface. It also has large crystals, which is a physical characteristic of igneous extrusive rocks.

 



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