Lodes sentence example
The lodes occur in Silurian metamorphic micaceous schists, intruded by granite, porphyry and diorite, and traversed by numerous quartz reefs, some of which are gold-bearing.
The upper valley of the Maranon has undeveloped gold-bearing lodes.
The most important minerals are lead and zinc, obtained in lodes in the forms of galena and calamine respectively.
Very rich lodes of the metal have been found in the Northampton, Murchison and Champion Bay districts, and also in the country to the south of these districts on the Irwin river.
Good lodes of stibnite (sulphide of antimony) have been found near Roebourne in Western Australia, but no attempt has yet been made to work them.Advertisement
The lodes are most frequently of great size, containing huge masses of galena, and so little gangue that the ore can very easily be dressed to 83 or 84%.
Only two tin lodes are worked, however, and both are situated on the east coast, the one at Kuantan in Pahang, the other at Bandi in Trengganu territory.
One of the neighbouring mines, the Proprietary, is the richest in the world; gold is associated with the silver; large quantities of lead, good copper lodes, zinc and tin are also found.
The hornsilvers all occur under similar conditions and are often associated together; they are found in metalliferous veins with native silver and ores of silver, and are usually confined to the upper oxidized parts of the lodes.
Gold is found in lodes and alluvial deposit; the former on the Pacific slope at Salpo, Otuzco, Huaylas, Yungay, Ocros, Chorrillos, Canete, Ica, Nasca, Andaray and Arequipa, and on the table-lands and Amazon slope at.Advertisement
By certain persons, who for different metals used rods of various materials, rods of hazel, he says, were held serviceable simply for silver lodes, and by the skilled miner, who trusted to natural signs of mineral veins, they were regarded as of no avail at all.
According to Cornish tradition, the divining or dowsing rod is guided to lodes by the pixies, the guardians of the treasures of the earth.
In Cornwall copper lodes usually run east and west.
The second half of the 19th century witnessed several great finds; first, of gold placers on the lower Gila and Colorado (1858-1869); later, of lodes at Tombstone, which flourished from 1879-1886, then decayed, but in 1905 had again become the centre of important mining interests; and still later the development of copper mines at Jerome and around Bisbee.
The copper lodes of New South Wales contain ores of a much higher grade than those of many well-known mines .worked at a profit in other parts of the world, and, with a fair price for copper, the production largely increases.Advertisement
It occurs in lodes and as stream-tin, and is worked by Chinese in large numbers who inhabit villages of their own.
In mineral veins and lodes crystallized quartz is usually the most abundant gangue mineral; the crystals are often arranged perpendicular to the walls of the lode, giving rise to a "comby" structure.
Tasmania is the largest producer of tin in Australasia, and a very large proportion of the tin hitherto produced has been obtained from alluvial deposits, the lodes, except at Mount Bischoff, having, comparatively speaking, been neglected.
To see piskies dancing in a mine adit, this is meant to show that there are rich ore lodes in the mine.
The country is granite, the known lodes in the sett are numerous, running in various directions.Advertisement
Back to top^ The mine covered quite a large area and worked many lodes, and the workforce in November 1862 numbered 206.
These rocks contained many minerals, which crystallized forming mineral lodes.
The idea is exploded that auriferous loded that auriferous lodes necessarily improve in value with depth.
Top K Knocker A Cornish mine spirit, which was said to knock at the richest lodes.
It is narrower and more shallow than any of the other navigable lodes and was probably only used by small Fen Lighters.Advertisement
The mine itself consisted of several parallel passages which were at right angles to the mineral lodes.
In the mining sett (mining boundary) there are a multiplicity of fissure lodes.
First, let it be said, that certain alluvial gold is unquestionably derived from the denudation of quartz lodes.
The sulfide minerals recorded from the lodes comprise pyrite, pyrrhotite, chalcopyrite, galena, sphalerite and arsenopyrite.
Lodes in the Cornubian Orefield often contain abundant pyrite, especially the upper parts.
The mines, which have been constructed for the purpose of working quartz lodes containing gold, are very extensive, and argue a high stage of civilization possessed by the ancient miners.