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Updated: May 24, 2025
The lodes of Santo Domingo are worked by means of levels driven from near the bottoms of the valleys that intersect them. When these levels have entered sufficiently far into the hills, shafts are driven upwards from them to the surface, and other levels driven sixty feet higher than the first.
During our journey to the Silla, and in all our excursions in the valley of Caracas, we were very attentive to the lodes and indications of ore which we found in the strata of gneiss. No regular diggings having been made, we could only examine the fissures, the ravines, and the land-slips occasioned by torrents in the rainy season.
His phraseology is very technical; so much so that the ordinary inquirer will find it somewhat difficult to follow his reasoning or understand his arguments, which have apparently been founded only on the occurrence of gold in some of the earlier discovered quartz lodes, and the conclusions at which he arrived are not borne out by later experience.
There was no place in the loft, for it was wholly bare of furniture, but their luggage was thrown down carelessly. There were no lodes, and Jack was able to extend his search to their knapsacks; but he found nothing that repaid him. He was forced finally to the conclusion that they were as poor as they seemed.
It has, indeed, been stated by some Cornish miners that the elvans are in some instances posterior to the oldest tin-bearing lodes, but the observations of Sir H. de la Beche during the survey led him to an opposite conclusion, and he has shown how the cases referred to in corroboration can be otherwise interpreted.
He took a slip of paper from a large pocket-book which lay at his elbow on the new green cloth-covered table, and handed it to his friend, who slowly opened and read it in a slovenly way, mumbling the most of it as he went on: "`WHEAL DOOEM, in St. Just, Cornwall mumble m m in 10,000 shares. An old mine, m m every reason to believe m m splendid lodes visible from m m.
Soon after finishing the meal I felt sick and very weak, and was unable to proceed on my journey till late in the afternoon, when I went ahead and reached home long after dark. Leavenworth gulch was crossed by dozens of lodes of gold-bearing quartz, generally running in a north-easterly and south-westerly direction.
But many lodes in Cornwall and elsewhere are extremely variable in size, being one or two inches in one part, and then eight or ten feet in another, at the distance of a few fathoms, and then again narrowing as before. Such alternate swelling and contraction is so often characteristic as to require explanation.
"What's quartz diggin's, then?" "Aw, those aren't diggin's, exactly," informed the wise Charley. "Quartz is a rock that helps form a lode where the gold is carried, first, before it's crumbled out by the weather and is washed down with gravel and sand to make the placer beds. You dig the placer bed, but you have to use a crow-bar and powder on lodes, and break them to pieces.
Much ignorance is displayed on the subject of lode formation and the deposition of metals therein, even by mining men of long experience. Many still insist that lodes, particularly those containing gold, are of igneous origin, and point to the black and brown ferro-manganic outcrops in confirmation.
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