| In other words, the magma is squeezed upwards as thin sheets through long, narrow fractures. |
| Normally magma would fill the crack and the adjacent plates would inch away by just that amount. |
| Variations in composition within each series reflect differentiation in magma chambers under volcanoes. |
| 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. |
| Whatever the source, an alkalic basaltic magma pooled in the potassium-poor rocks of the lower crust. |
