General terms:
* Shield volcano: These volcanoes are characterized by broad, gently sloping sides, often with very large basal diameters. They are formed by the eruption of highly fluid lava, which spreads out over wide areas. While the slopes may not be described as "deep," they are certainly extensive.
* Massive volcano: This is a general term that simply indicates a volcano with a large size and volume.
* Supervolcano: This refers to a volcano capable of producing eruptions with a Volcanic Explosivity Index (VEI) of 8 or higher. Supervolcanoes are characterized by massive calderas and can have very large footprints, but they are not necessarily defined by steep slopes.
Descriptive terms:
* Volcano with steep flanks: This describes a volcano with pronounced slopes, but doesn't necessarily imply large size.
* Volcano with a high relief: This describes a volcano that rises significantly above the surrounding terrain.
Ultimately, the best way to describe a large volcano with deep slopes would depend on the specific characteristics of the volcano.
It's important to note that the terms used to describe volcanoes can vary depending on the context and the specific geological features being emphasized.
