| Title | Comment | Keywords |
|---|---|---|
| Heating Magma | 03:09 - 03:59 (00:50) / 0.8 MB | volcano, "David Sigurdson", heat, radioactivity, isotope, potassium, thorium, uranium, decay, magma |
Coastal & Marine Geology InfoBank
USGS CMG InfoBank Geology School: decay |
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