chicken
When Mt. Stromboli erupts, thick lava and ashes come out fast and violently.
If mafic lava cools down too fast, it solidifies quickly, resulting in the formation of small crystals or even a glassy texture. This rapid cooling prevents larger crystals from forming, which are common in slower-cooling scenarios.
Pumice is the result of extremely fast cooling lava.
When the lava all goes up it means that the temperature is too hot, and when it's down it means it's too cold, at least the seller told me that.
fast cooling lava -small crystals or no crystals
Obsidian and Pāhoehoe lava
fast cooling lava -small crystals or no crystals
Dacite lava flows at speeds orders of magnitude slower than mafic lava.
Hot, fast-moving lava is typically associated with Hawaiian-style eruptions, which feature low viscosity lava that can flow rapidly down slopes. This type of lava is usually characterized by its high temperature and ability to travel great distances in a short amount of time, posing a significant hazard to surrounding areas. It's crucial for residents near active volcanoes to stay informed about lava flow risks and heed evacuation orders to ensure their safety.
A lava flow is where lava flows down the side of a volcano.
When magma erupts from the volcano and starts to come down the sides, It slowly cools going down and turns into igneous rock.
Lava flow from shield volcanoes can range from a few meters to several kilometers per hour, depending on the viscosity of the lava. Generally, shield volcano lava flows are known to be relatively slow-moving compared to other types of volcanoes.