A lava pool is essentially a body of molten lava contained within a volcanic feature. Based on geological definitions, it is synonymous with a lava lake.
Understanding Lava Pools (Lava Lakes)
According to the National Park Service, specifically in the context of Hawaiʻi Volcanoes, a lava lake is a pool of molten lava that persists in a vent or crater of a volcano. This definition provides a clear understanding of what constitutes a lava pool.
Think of it as a persistent reservoir of extremely hot, liquid rock (lava) located within the upper part of a volcano's conduit or depression.
Key Characteristics
Based on the definition of a lava lake, we can identify the main characteristics of a lava pool:
- Composition: It consists of molten lava, which is rock that has been heated to a liquid state.
- Location: It is typically found in a vent or crater of a volcano. This means it's often near the summit or within a side vent.
- Persistence: A defining feature is that it persists, meaning it remains in its liquid state and location for an extended period, rather than solidifying quickly or draining away.
Where Can You Find Lava Pools?
Lava pools (or lakes) are relatively rare but spectacular volcanic phenomena. They require a stable supply of molten rock from below to maintain their liquid state and temperature. Famous locations known for having persistent lava lakes include:
- Kīlauea Volcano (Hawaiʻi, USA) - Although dynamic and can change over time.
- Erta Ale (Ethiopia)
- Nyiragongo (Democratic Republic of Congo)
Why are Lava Pools Significant?
Lava pools offer scientists a unique opportunity to study volcanic processes up close (from a safe distance, of course). They can provide insights into:
- The composition and temperature of the magma source.
- Degassing processes (release of volcanic gases).
- Convection currents within the lava.
- Potential indicators of changes in volcanic activity.
Studying these persistent pools of molten rock helps volcanologists understand the complex plumbing systems beneath volcanoes and potentially improve monitoring and hazard assessment.
