...It stood on edge, and several dikes of basalt, with dolerite, had cut through it... 
David Livingstone 「Missionary Travels and Researches in South Africa」
...One enormous fresh-water lake, inwhich probably sported the Dyconodon, was let off when the remarkablerent was made in the basalt which now constitutes the Victoria Falls...
David Livingstone 「The Last Journals of David Livingstone, in Central Africa, from 1865 to His Death, Volume II (of 2), 1869-1873」
...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」
...This being the case,one asks how they can possibly have dealt at will upon the hardest rocks,even upon such as we ourselves hesitate to attack, namely, diorite, basalt,and the granite of Syene...
Gaston Camille Charles Maspero 「Manual Of Egyptian Archaeology And Guide To The Study Of Antiquities In Egypt」
...Winslow met his companion'seyes sheepishly as they stopped where a sheer cliff of basalt abovecaught and held the warmth of the sun's rays...
Various 「Astounding Stories of Super-Science, June, 1930」
...Forrestier's Peninsula was an almost impenetrable thicket, growing to the brink of a perpendicular cliff of basalt...
Marcus Clarke 「For the Term of His Natural Life」
...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」
...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」
...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」
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