A Constrained 3D Density Model of the Upper Crust from Gravity Data Interpretation for Central Costa Rica

Figure 9

3D density model cross section across the Barva volcano and surrounding regions. Red and black curves in the upper box show the measured and calculated gravity anomalies, respectively. Black plus-signs indicate topography derived from SRTM 3 arc sec grid which is projected on the cross section; black stars in the lower box show Euler source points. Grayscale polygons represent modeled crustal bodies with corresponding densities. Red triangle indicates the location of the main Quaternary volcanic vent; blue triangle indicates the location of the Cedral inferred paleo-volcanic vent.