| colspan = 2 | Leached (secondary) [[porosity]]: Form as a result of localized leaching of nonreservoir-quality rock to create enhanced porosity and [[permeability]]. Common beneath [[unconformity]] surfaces. | | colspan = 2 | Leached (secondary) [[porosity]]: Form as a result of localized leaching of nonreservoir-quality rock to create enhanced porosity and [[permeability]]. Common beneath [[unconformity]] surfaces. |