...The general rock is the gray soft sandstone I have mentioned, but at the rivulet Bangue we come upon a dike of basalt six yards wide, running north and south... 
David Livingstone 「Missionary Travels and Researches in South Africa」
... The section was only shown for a short distance, and then became lost by a fault made by a dike of basalt, which ran to the E...
David Livingstone 「Missionary Travels and Researches in South Africa」
...Overweg says, that within three-quarters of anhour's walk are found hereabout granite, sandstone,and basalt, a variety of stones somewhat remarkable...
James Richardson 「Narrative of a Mission to Central Africa Performed in the Years 1850-51, Volume 2」
...The worst feature was that many were buriedalive beneath the snow, or pinned down to the groundby masses of basalt...
George Murray Levick 「Antarctic Penguins」
...In the gravel at the base of the hill,were water-worn pebbles of trap and basalt...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
...Amongst thewater-worn pebbles, of which the rising ground consisted, there were,besides the ingredients of the Barwan gravel, many of trap and basalt...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
...Some compact basalt appeared near the summit...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
...Parallel to iton the south, a line of pointed hills of trap or basalt, extended so as togive birth, in the valley intervening, to the watercourse by which wewere encamped...
Thomas Mitchell 「Journal of an Expedition into the Interior of Tropical Australia」
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