Stratovolcano vs shield: same magma, two mountain shapes

A 6-beat faceless video outline for “Stratovolcano vs shield: same magma, two mountain shapes” in the Volcanoes explained niche, derived from caption timing of 2 reference videos.

Angles

• Cold open on the contrast: apocalyptic city-destroyers vs lava that builds tropical islands — both references lead with that fork
• Tie shape to magma viscosity and plate setting: subduction → sticky stratovolcanoes; hotspot/divergent → runny shields
• Put the four-type gallery on screen (shield, stratovolcano/composite, cinder cone, submarine ridges) so 'vs' is not a false binary
• Close on Hawaii vs Fujiyama as named anchors, with a honesty beat that shields can still build dangerous pressure

Beat-by-beat structure

1. Hook (0:00–0:30): one volcano flattens a city; another grows an island — same word, two machines.
2. Definition (0:30–1:30): volcano = magma forcing a fissure; the mountain is the pile that accumulates around it.
3. Stratovolcano column (1:30–3:30): subduction, viscous magma, pressure + ash columns; Fujiyama as the classic steep cone.
4. Shield column (3:30–5:00): hotspot or thin crust, low-viscosity lava that travels far; Hawaii as the textbook shield.
5. Type gallery (5:00–6:30): add cinder cones and mid-ocean ridges so viewers do not think only two kinds exist.
6. Recap card: viscosity + setting → shape; eruptions still need sourced caution. Original narration only.

Reference videos

• Shield Volcanoes Vs Strato-Volcanoes IwiFE_zez4s
• The four types of volcanoes jPt8xVOM-tc

Method

yt-dlp VTT captions (manual/uploader only) → timed beat heuristics → editorial topic synthesis (no ASR). Structure only; write original narration.