Converse of object

• overlie: Between these are structurally weaker palaeosol horizons of weathered basalt that encourage localized collapse as the wear back and undermine the overlying basalt.

• call: This insight was confirmed by samples collected from the maria: they are a type of volcanic rock called basalt.

Adjective modifier

• Tertiary: The LCA comprises 75 % Tertiary basalts, the remainder being the older, underlying units.

• volcanic: Map ref: Directions: Carlin Maggie Stone Carlin Maggie's stone is a 40-foot natural stone column formed of volcanic basalt.

• black: It is made out of locally found materials such as quartz, blue mussel shells, black basalt and worn down colored glass.

• dark: The dark basalt overlies a thin band of chalk, which forms a strong contrast in color whenever it is visible.

• vesicular: The three volcanic cones are relatively old and comprise late-stage fractionated and highly vesicular basalt.

• hard: The little museum had a completely different feel with the hard black basalt, but because of that the carvings remained much sharper.

Modifies a noun

• lava: These can erupt sheets of flood basalt lava at the Earth's surface.

• escarpment: However, the summits along the edge of the basalt escarpment have much steeper slopes which plummet toward Belfast.

• plateau: The surface of the basalt plateau is rolling, with a series of broad ridges aligned northwest to southeast.

• dike: The tide got its own back, beating us to the Tertiary basalt dikes that cut the pillow lavas in places.

• outcrop: The black basalt outcrops have a distinctive, sheer profile which is broken by a series of steep, wooded glens.

• cliff: Your basalt cliffs Rose up that day like panic.

Noun used with modifier

• columnar: A range of unusual minerals are present together with notable lava cooling features such as columnar basalts, chisel marks and blister surfaces.

• flood: These can erupt sheets of flood basalt lava at the Earth's surface.

• alkali: This may explain why alkali basalts carry mostly spinel peridotites although the magma originated at deeper depth of garnet peridotites zone.

• ridge: Results imply that much of the source of North Atlantic ridge basalts has been contaminated by lateral outflow of asthenosphere from the Icelandic plume.

• plateau: Blackburn is of particular interest as it provides evidence of active dissolution of the Ulster White Limestone underlying the plateau basalts.

• ocean: His classic papers on ocean island basalts and oceanic crust were published at this time with Dan McKenzie, Ron Oxburgh and others.