| Scientists believe that diamonds ascend to the earth's surface in rare molten rock, or magma that originates at great depths. |
| If magma were to accumulate at mid-crustal levels beneath the north Taupo region, this has significant implications for hazard monitoring. |
| This magma is rich in carbon dioxide gas, which produces explosive eruptions. |
| From beneath the dome, the magma could combine with pressurized gases and steam to trigger an eruption, Pierson said. |
| Normally magma would fill the crack and the adjacent plates would inch away by just that amount. |
| In other words, the magma is squeezed upwards as thin sheets through long, narrow fractures. |
