Book/Printed Material The Comstock lode: its character, and the probable mode of its continuance in depth.
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Image 1 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 2 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 3 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 4 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 5 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 6 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 7 of The Comstock lode: its character, and the probable mode of its continuance in … THE COMSTOCK LODE ITS CHARACTER AND THE PROBABLE MODE OF ITS CONTINUANCE IN DEPTH V BY Ferdinand Baron Richthofen Dr Phil A i November Z2d 1865 SAN FRANCISCO PUBLISHED BY THE SUTRO…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 8 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 9 of The Comstock lode: its character, and the probable mode of its continuance in … T O T H Eшй of of Ш jutw ïïxrnü GkVirginia Nev November 22d 1865 Gentlemen In compliance with your request I beg to submit the subjoined statement of my views in…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 10 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 11 of The Comstock lode: its character, and the probable mode of its continuance in … PAGE Introduction 7 Outlines of the Geology of Washoe 11 General Structure of Comstock Vein 18 Enclosing Rocks 22 Outcroppings 2 4 VeinMatter 2 5 Fragments of CountryRock 2 5 Clay and…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 12 of The Comstock lode: its character, and the probable mode of its continuance in …- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 13 of The Comstock lode: its character, and the probable mode of its continuance in … ON THE CHARACTER OF THE COMSTOCK VEIN AND THE PROBABLE MODE OF ITS CONTINUANCE IN DEPTH By Ferdinand Baron Richthofen The Comstock lode in the State of Nevada may be ranked among…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 14 of The Comstock lode: its character, and the probable mode of its continuance in … 8 the annual production of silver in other parts of the world has not undergone great changes the total amount of silver produced was according to Prof Whitney 47443200 of which sum…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 15 of The Comstock lode: its character, and the probable mode of its continuance in … 9 has assumed gigantic proportions all over the Great Basin it has given successful employment to large amounts of capital and rescued the trade of California from imminent decline at a time…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 16 of The Comstock lode: its character, and the probable mode of its continuance in … ulation as that engaged on the Comstock vein and no metalliferous deposit ever was developed so fast not even excepting the great Potosi mine in Bolivia The amount of work done in…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 17 of The Comstock lode: its character, and the probable mode of its continuance in … OUTLINES OF THE GEOLOGY OF WASHOE The range of the Washoe mountains on which the Comstock vein is situated is separated from the steep eastern slope of the Sierra Nevada by a…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 18 of The Comstock lode: its character, and the probable mode of its continuance in … 12 of the country The culminating point of the range is Mount Davidson the elevation of which was deter mined by Professor J D Whitney as 7827 feet The altitudes of other…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 19 of The Comstock lode: its character, and the probable mode of its continuance in … 13 But since then they have been extirpated and Virginia depends for its supply of wood and timber chiefly on the slope of the Sierra Nevada which down to the beforementioned depression…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 20 of The Comstock lode: its character, and the probable mode of its continuance in … ч clase hornblende in laminated prisms of greenish black color some mica and occasionally epidote but no quartz It is probably a continuation of the granitic axis of the PineNut mountains and…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 21 of The Comstock lode: its character, and the probable mode of its continuance in … i5 gradual emergence of the Sierra Nevada and the Great Basin and the entire chain of the Cordilleras from the ancient sea whose traces areleft in saline incrustations and salt pools at…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 22 of The Comstock lode: its character, and the probable mode of its continuance in … vein and besides encloses several perhaps most of the largest and most productive silver veins in the world as those in the Karpathian mountains of Zacatecas and other places in Mexico and…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 23 of The Comstock lode: its character, and the probable mode of its continuance in … i7 feldspar or sanidin which along with hornblende and mica is imbedded in a base or paste of a peculiarly rough texture caused by microscopical vésicules which fill the rock It has…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 24 of The Comstock lode: its character, and the probable mode of its continuance in … i8 farther north this rock covers the country to great extent Sanidintrachyte has never been found to contain silverbearing veins and in Washoe none occur in it and yet it has evidently…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 25 of The Comstock lode: its character, and the probable mode of its continuance in … 19 towns of Virginia Gold Hill and American City The outcroppings of the vein extend in a broad belt along the foot of the steep grade and immediately above the three towns…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 26 of The Comstock lode: its character, and the probable mode of its continuance in … 20 drawn in regard to those which are below the present works Without entering here on the question of the plu rality of veins or the correctness of the socalled one ledge…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 27 of The Comstock lode: its character, and the probable mode of its continuance in … 21 of large fragments of countryrock broken from the walls but usually moved only a little way downward by sliding from their original place The bulk and number of these fragments or…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 28 of The Comstock lode: its character, and the probable mode of its continuance in … 22 with matter similar to that which fills the fissure It is frequently concentrated in channels running parallel to or ascending from the vein but in fact forming parts of it The…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 29 of The Comstock lode: its character, and the probable mode of its continuance in … 23 from the vein by a finegrained and crystalline rock of black color having the nature of aphanite but alto gether obscure as to the mode of its occurrence It is from…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 30 of The Comstock lode: its character, and the probable mode of its continuance in … 24 OutcroppingsThe outcroppings of the Comstock vein do not form a continuous line but consist rather of small and detached ranges of quartz ordinarily pro truding from the surrounding ground and sometimes…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 31 of The Comstock lode: its character, and the probable mode of its continuance in … 2 5 lie substances occur finelydisseminated through the quartz causing thereby a marked difference from the character of the western outcrops A certain porous structure of the quartz evidently originating from the…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page
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Image 32 of The Comstock lode: its character, and the probable mode of its continuance in … 26 and size varies somewhat with the different nature of the rock of which they consist Those of propylite which along the whole range occur on the eastern side and only occasionally…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 33 of The Comstock lode: its character, and the probable mode of its continuance in … 27 from ten to twenty feet in thickness Other sheets of clay divide horses from quartz or different bodies of the latter and where the two walls come in close contact they…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 34 of The Comstock lode: its character, and the probable mode of its continuance in … 28 ever this color is only due to the red clay filling the fissures of the fractured quartz In this case it is probably produced by the percolation of the vein matter…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 35 of The Comstock lode: its character, and the probable mode of its continuance in … 29 are seldom crystallized and specimens which at other mines would be considered very common are admired in Virginia as rareties In regard to the accidental minerals the same might be said…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 36 of The Comstock lode: its character, and the probable mode of its continuance in … 3 feet Sometimes several of them adjoin each other laterally in such way that the westernmost one ex tends farther north than the one adjoining to the east andthis again farther than…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 37 of The Comstock lode: its character, and the probable mode of its continuance in … 31 commenced As it was next to the east wall it dipped with that towards the west near the surface then in its widest portion straightened out and gradually turned to an…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 38 of The Comstock lode: its character, and the probable mode of its continuance in … 32 extended more than a few hundred feet beneath the surface The southern part of the Savage mine and the Hale and Norcross have been almost entirely unpro ductive though both of…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 39 of The Comstock lode: its character, and the probable mode of its continuance in … 33 tion the latter continues along the socalled eastern clay for a long way and has been explored by the Chollar company It first made its appearance at the depth of about…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
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Image 40 of The Comstock lode: its character, and the probable mode of its continuance in … 34 south The vein is by no means orebearing in its entire width but the ore is concentrated in continu ous sheets the principal one of which is very near and parallel…- Contributor: Richthofen, Ferdinand
- Date: 1866-01-01
- Resource: - 1 page