Geofluids / 2019 / Article / Fig 2

Research Article

Geospatial Statistics Elucidate Competing Geological Controls on Natural CO2 Seeps in Italy

Figure 2

(a) Point-distance correlation functions for seep and synthetic (random) data in mainland Italy, showing the break in the slope for seep data around ~5 km and roll-off towards ~100 km in both datasets. The synthetic dataset is not clustered so few pairs are <10 km apart. Inset shows distribution of azimuths for (anticlockwise) and >10 km (clockwise) for (b) seeps and (c) synthetic data. Seeps show several favored and NW-SE separation. (d) Normalized line histogram of seep types and distances from lithological boundaries and faults. BW refers to bubbling water seeps.

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