Structural mapping based on geophysical methods

In nuclear waste disposal site investigations geophysical measurements are used for detailed site characterization. Variations in rock types and fracturing cause anomalies in surveys. However, especially fracturing analysis calls for further processing of results. Examples of the integrated use of single-hole logs in fracture type analysis and of the combination of single-hole and crosshole measurements is presented from Lavia test site. Oncoming new methods are also briefly discussed in the paper