Comparing volcanic sites

Comparing different maps with the grid of convection rolls found in layers under Iceland is necessary. Here is one example, comparing with a simple map from the Iceland Magasine https://icelandmag.is/article/icelands-northernmost-settlement-and-tallest-peak-tremble-quakes-oraefajokull-and-grimsey

The grid and the volcanic systems

By showing the polygons mostly includen, the two volcanic zones of the south, can be marked clearly, and the north volcanic zone becomes tracable as well. The two zones of Snæfellsnes and Öræfajökull clearly span over relevant polygons.

The polygons of volcanic zones marked specially

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