Lava domes are rounded, steep-sided mounds built by magma that is highly resistant to flow, usually either dacite or rhyolite. Such magmas are typically too viscous to move far from the vent ...

Thundereggs specifically form in rhyolitic lava. Rhyolitic lava flows are volcanic flows composed of rhyolite — a high-silica ...

Comparing pollen records from three lakes in different geological substrates highlights the influence of geology and climate on long-term vegetation development.