Multiscale lineament analysis and permeability heterogeneity of fractured crystalline basement blocks

Abstract. The multiscale analysis of lineament patterns helps define the geometric scaling laws and relationships between outcrop- regional-scale structures in a fracture network. Here, we present novel analytical statistical workflow to analyze geometrical spatial organization properties Rolvsnes granodiorite (fracture) network crystalline basement southwestern Norway (Bømlo Island). shows scale-invariant distribution described by fractal dimension D≈1.51, with lengths distributed following general power law (exponent α=1.88). However, orientation-dependent analyses show that identified sets vary their relative abundance occupancy scale, defining hierarchical Lineament length, density, intensity distributions each set follow power-law characterized own exponents. Thus, our multiscale, approach can aid identification structure network, quantifying heterogeneity related regional- vs. local-scale relevance. These results, integrated field petrophysical lineaments, effectively improve detail accuracy permeability prediction heterogeneously fractured media. Our results also how geological biases affect they must be critically assessed before extrapolating conclusions any other similar case study blocks.