Precipice of basaltic lava, chiefly columnar, about 130 feet in height.
We find several hills in the neighbourhood of Aurillac composed of such materials, for the height of more than 200 feet from their base, the whole sometimes covered by rocky currents of trachytic or basaltic lava.
A bed of oysters no less than 20 feet in thickness rests upon a current of basaltic lava.
The annexed figure represents a fragment of stone taken from the upper part of a sheet of basaltic lava in Auvergne.
The floods of basaltic lava which in the northwestern United States have yielded the barren plateau of the Cascade Mountains (Fig.
Whenever the content of silica is relatively low,—basic or basaltic lava,—the cooled rock is dark in color and relatively heavy.
The outburst of the celebrated thermal springs of Callirrhoe, together with nine or ten others, along the channel of the Zerka Main, is a circumstance which cannot be dissociated from the occurrence of basaltic lava at this spot.
Extensive sheets of basaltic lava, described as far back as 1807 by Seetzen, and more recently by Lartet and Tristram, are found at intervals between the Wadies Mojib (Arnon) and Haidan.
This formation is in many parts overlaid, in the usual order of superposition, by streams of basaltic lava, which near the coast compose nearly the whole surface.
Cruz, in the vast deluges of basaltic lava: at this same tertiary period, also, there is distinct evidence of volcanic action in Western Banda Oriental.
They are the products of submarine eruptions which shattered into fragments the extensive palagonite crusts of flows of basaltic lava.
The inland plateau now upheaved 1,000 feet above the sea, was built up by submarine flows of basaltic lava.
In the promontory named Yanutha Point in the map there is displayed an old flow of basaltic lava, showing a columnar structure at the end of the point.
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