When lava cools in the ocean, it forms a type of rock called pillow basalt. This distinctive rock gets its name from its pillow-like shape that results from the rapid cooling of lava in water. Pillow basalt is commonly found in areas where underwater volcanic eruptions occur.
Intrusive Extrusize Plutonic and Hypabyssal
These rock formations are generally referred to as igneous rocks and are categorized in at least two forms: Basalts and Granites. Lava is the form of molten rock. But, when it cools in air, it is more of a Basalt. When it cools well beneath the surface, under pressure from above, it takes the form of a Granite. However, we do use, for landscaping purposes, a form of it that has been cooled in water and is very porous (open-celled). This is usually just called "lava rock".
Pillow lava got its name because of its distinctive pillow-like shapes that form when lava flows underwater and cools rapidly. As the outer layer of lava cools and solidifies quickly upon contact with water, it forms a rounded mound resembling a pillow. This unique shape is characteristic of lava flows in underwater volcanic environments.
Aloha: You will hear ʻā pele (rough lava) and pāhoehoe (smooth). This is (ay pay-lay and pay-hoay-hoay). Most of the time, we just say ʻā (like the letter A).
another name for the mineral crystals in cooling magma or lava
No. Halite forms when various bodies of water evaporate. Halite is the mineral name for salt.
Geodes
When lava cools in the ocean, it forms a type of rock called pillow basalt. This distinctive rock gets its name from its pillow-like shape that results from the rapid cooling of lava in water. Pillow basalt is commonly found in areas where underwater volcanic eruptions occur.
Intrusive Extrusize Plutonic and Hypabyssal
Yes obsidian is glassy because it cooled very fast.
These rock formations are generally referred to as igneous rocks and are categorized in at least two forms: Basalts and Granites. Lava is the form of molten rock. But, when it cools in air, it is more of a Basalt. When it cools well beneath the surface, under pressure from above, it takes the form of a Granite. However, we do use, for landscaping purposes, a form of it that has been cooled in water and is very porous (open-celled). This is usually just called "lava rock".
Pillow lava got its name because of its distinctive pillow-like shapes that form when lava flows underwater and cools rapidly. As the outer layer of lava cools and solidifies quickly upon contact with water, it forms a rounded mound resembling a pillow. This unique shape is characteristic of lava flows in underwater volcanic environments.
Aloha: You will hear ʻā pele (rough lava) and pāhoehoe (smooth). This is (ay pay-lay and pay-hoay-hoay). Most of the time, we just say ʻā (like the letter A).
Lava
Lava
Pillow lava is basaltic lava that forms rounded pillow like lumps. It forms when a volcano erupts fairly deep underwater. Lava erupts bu quickly crusts over, creating a bulbous formation. The crust then breaks and more lava spills out, continuing the process.See the link below for a video of pillow lava.