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Updated: June 22, 2025
At 6000 feet we emerged from the mist, and found ourselves clambering down a deep gully, hemmed in by frightful rocky steeps, which exposed a fine and tolerably continuous section of schistose rocks, striking north-west, and dipping north-east, at a very high angle.
Purple-red conglomerate, with horizontal layers weathered into massive forms; granitic schistose rocks, over which we later passed, gave their peculiar scenic outlines. We climbed steadily for fully four hours, and then looked down, along a gently sloping hill trail, to our town, perched upon a slightly lower hill.
Can these flames be attributed to the decomposition of water, entering into contact with the pyrites dispersed through the schistose marl? or is it inflamed hydrogen that issues from the cavern of Cuchivano?
After marching three miles we camped at the foot of the ridge to be ascended next morning: the place is called Safhat el-Mu'ayrah from a slaty schistose hill on the eastern bank.
We were assured that they are inhabited by nocturnal birds, the same as those we were soon to become acquainted with in the Cueva del Guacharo of Caripe. Near these caverns we saw strata of schistose marl, and found, with great astonishment, rock-crystals encased in beds of alpine limestone. They were hexahedral prisms, terminated with pyramids, fourteen lines long and eight thick.
We passed at first along a slope extremely slippery and steep, to which the missionaries had given the name of Baxada del Purgatorio, or Descent of Purgatory. It is a rock of schistose sandstone, decomposed, covered with clay, the talus of which appears frightfully steep, from the effect of a very common optical illusion.
Foote in the same order, i.e., from south to north, and he tells us that the auriferous localities in this group occur all in small detached strips or patches of schistose rock scattered over the older gneissic series. Mr.
The circumstances of the Champion lode are briefly these. In the interior of a surrounding of granite there is a great basin of hornblende rock of schistose character, and through this, at an angle of about forty-five degrees, runs the lode. This is not of continuous thickness. In some places it is four or five feet wide, in others runs down to an almost vanishing point, and then again thickens.
This molten silica continually accumulating, spreading, and pressing against the horizontal Cambro-Silurian beds during a long period at length forced its way through the superincumbent strata in all directions; and it is abundantly evident, under the conditions of this force and the resistance offered to its action, that the line it would and must choose would be along any continuous and slightly inclined diagonal, at times crossing the strata of the schists, though generally preferring to develop itself and egress between the cleavage planes and dividing seams of the different schistose beds."
This boulder clay had extended all the way from San Rafael, and ranges of hills appeared to be composed entirely of it. The angular and subangular stones that it contained were an irregular mixture of different varieties of trap, conglomerate, and schistose rocks.
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