basaltic rock

basaltic rock

[bə′sȯl·tik ′räk]
(petrology)
Igneous rock that is fine-grained and contains basalt, diabase, and dolerite; if andesite is included the rock is dark in color.
References in classic literature ?
The banks of the river, for a considerable distance, both above and below the falls, have a volcanic character: masses of basaltic rock are piled one upon another; the water makes its way through their broken chasms, boiling through narrow channels, or pitching in beautiful cascades over ridges of basaltic columns.
Whenever he approached Snake River, he found it running through a broad chasm, with steep, perpendicular sides of basaltic rock.
After encamping at this place all night, Captain Bonneville, at sunrise, descended with his party through a narrow ravine, or rather crevice, in the vast wall of basaltic rock which bordered the river; this being the only mode, for many miles, of getting to the margin of the stream.
Basaltic rocks rise perpendicularly, so that it is impossible to get from the plain to the water, or from the river margin to the plain.
The walls were smooth and appeared to be composed of a black, basaltic rock.
We had left the beach early in the morning, and after an uninterrupted, though at times difficult and dangerous ascent, during which we had never once turned our faces to the sea, we found ourselves, about three hours before sunset, standing on the top of what seemed to be the highest land on the island, an immense overhanging cliff composed of basaltic rocks, hung round with parasitical plants.
three, displaying newly formed basaltic rock and fresh lava.
The asteroid 4-Vesta, which formed in the same region of the solar system as Earth, has a surface of basaltic rock -- frozen lava.
The minerals may have formed as slightly acidic water corroded basaltic rock, Arvidson says.
Kasten's work is layered with rough, unrefined clay slips, crushed basaltic rock and oxide pigments, resulting in texture that is visual as well as tactile.
Their builders have skilled in showing the columns' designs, capitals and bases as Horan is famousfor the Nabataean columns carved in the basaltic rock.
This topography reflects rock density: continents are slabs of relatively low density granitic rock while higher-density basaltic rock underlies the ocean basins.