Figure 4
From: Dyke apertures record stress accumulation during sustained volcanism
Map showing the median (solid line), 10th and 90th percentiles (dotted lines) of tangential (a) and vertical (b) strain estimated using 1 m spaced scan lines extracted from each digital outcrop model. These show a general tangential strain of ~ 2–4% through much of the caldera and substantially higher values (6–10%) in the north. A similar pattern is observed for vertical strain, although the net vertical extension is much less (~ 1–2%). Data from Los Andenes has been omitted from this analysis due to the limited number of intrusions at that site. Note the difference in the strain plot scale between (a,b).
