Anderson, Roger N.; O'Malley, Honor (1985): Frequency response and attenuation changes across highly altered fracture zones cross-cutting a fast formation; the oceanic crust of the Mid-Atlantic Ridge. Society of Professional Well Log Analysts, Houston, TX, United States, SPWLA twenty-sixth annual logging symposium, 26 (2), LLL1-LLL12, georefid:1986-017891