Fig. 4 | Nature Communications

Fig. 4

From: Disclosing the temperature of columnar jointing in lavas

Fig. 4The alt text for this image may have been generated using AI.

Thermal expansion coefficient. Dilatometric measurements showing the linear expansion coefficient of Seljavellir basalt, cored axially and parallel to the column, during cooling from 1020 °C. The dashed blue line denotes the solidus temperature (980 °C)

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