Pillows in Geology: A Fun Exploration into Volcanic Rocks!
What are "pillows" in geology and how are they formed?
1) Pillows are formed by volcanic activity. 2) Pillows are sedimentary rocks. 3) Pillows are formed by erosion. 4) Pillows are found only in deserts.
Answer:
Pillows in geology, also known as pillow lavas, are formed by volcanic activity and are a type of igneous rock, not sedimentary rocks or forms created by erosion, and they are found typically in oceanic environments.
Explanation:
The correct statement about "pillows" in geology is that pillows are formed by volcanic activity. These geological structures, known as pillow lavas, are typically found in the ocean where lava extrudes on the seafloor, quickly cools down by the surrounding water, and forms rounded, pillow-like shapes. Pillow lavas are a type of igneous rock, which are formed from the solidification of magma or lava. They are not sedimentary rocks, nor are they formed by erosion, and they are certainly not exclusive to desert environments.
So, next time you come across pillow lavas in your geology studies or explorations, remember that they are products of fiery volcanic action in the cool embrace of ocean waters, creating unique and fascinating rock formations!