All Outputs (3)

Dependence of sonic velocity on effective stress in North Sea Mesozoic mudstones (2006)
Journal Article
Lubanzadio, M., Goulty, N., & Swarbrick, R. (2006). Dependence of sonic velocity on effective stress in North Sea Mesozoic mudstones. Marine and Petroleum Geology, 23(6), 647-653. https://doi.org/10.1016/j.marpetgeo.2006.06.002

Overpressure estimation methods that use sonic velocity as a proxy for porosity only account for excess pressure due to undercompaction, so the influence of unloading processes in generating overpressure is ignored. We have used wireline log data and... Read More about Dependence of sonic velocity on effective stress in North Sea Mesozoic mudstones.

Switches in the minimum compressive stress direction induced by overpressure beneath a low-permeability fault zone (2006)
Journal Article
Collettini, C., De Paola, N., & Goulty, N. (2006). Switches in the minimum compressive stress direction induced by overpressure beneath a low-permeability fault zone. Terra Nova, 18(3), 224-231. https://doi.org/10.1111/j.1365-3121.2006.00683.x

The Zuccale fault is a gently east-dipping normal fault exposed on Elba. Its displacement of 7—8 km occurred from the mid-Miocene to the early Pliocene and the fault has been exhumed from 3—6 km depth. A complex hydrofracture system exposed in the fo... Read More about Switches in the minimum compressive stress direction induced by overpressure beneath a low-permeability fault zone.

Discussion on development of polygonal fault systems: a test of hypotheses (2006)
Journal Article
James, D., Goulty, N., & Swarbrick, R. (2006). Discussion on development of polygonal fault systems: a test of hypotheses. Journal of the Geological Society, 163(1), 221-223. https://doi.org/10.1144/0016-764905-111

We were surprised that James should criticize a test based on field data for not bearing some relation to physical reality, but infer that this comment relates to his later assertion that the polygonal fault systems concerned are inactive. We admit t... Read More about Discussion on development of polygonal fault systems: a test of hypotheses.