scoriated

In a few miles I noticed, where a little stream crossed the road, fragments of _scoriated basalt_ scattered about -- the first volcanic rock we had seen, and which now became a characteristic rock along our future road.

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

The rock along the banks of the stream, and the ledge over which it falls, is a scoriated basalt, with a bright metallic fracture.

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

I found the thin and stony soil of the plain entirely underlaid by the basalt which forms the river walls; and when I reached the neighborhood of the hill, the surface of the plain was rent into frequent fissures and chasms of the same scoriated volcanic rock, from 40 to 60 feet deep, but which there was not sufficient light to penetrate entirely, and which I had not time to descend.

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

Gradually becoming higher in its downward course, these banks of scoriated volcanic rock form, with occasional interruptions, its characteristic feature along the whole line to the Dalles of the Lower Columbia, resembling a chasm which had been rent through the country, and which the river had afterwards taken for its bed.

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

Here were strata and broken beds of black scoriated rock, and hills composed of the same, on the summit of one of which there was an opening resembling a rent.

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

We ascended along the river, which sometimes presented sheets of foaming cascades -- its banks occasionally blackened with masses of scoriated rock -- and found a good encampment on the verge of open bottom, which had been an old camping-ground of the

The Exploring Expedition to the Rocky Mountains, Oregon and California To which is Added a Description of the Physical Geography of California, with Recent Notices of the Gold Region from the Latest and Most Authentic Sources Brevet Col. J.C. Fremont 1851

The prevailing rock is lava, scoriated basalt, trap, bituminous limestone, and calcareous tufa.

ROCKY MOUNTAIN LIFE 1841

He turned, he moved like he was still drunk and then for a moment blind, too, one hand out as he blundered toward the big tree and seemed to stop walking before he reached the tree so that he plunged, fell toward it, flinging up both hands and catching himself against the tree and turning until his back was against it, backing with the tree's trunk his wild spent scoriated face and the tremendous heave and collapse of his chest, McCaslin following, facing him again, never once having moved his eyes from Boon's eyes.

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