 ... fissures. b. From the general parallelism with its walls of the planes of any fragments of the enclosing rock which may have become imbedded in a vein, it is to be inferred that they were mechanically removed by the growth of the several layers to...  Proceedings of the Royal Society of London - Page 296by Royal Society (Great Britain) - 1868Full view - About this book
 | Royal Society (Great Britain) - 1868 - 654 pages
...the slow deposition from aqueous solutions of silica on the surfaces of the enclosing fissures. I. From the general parallelism with its walls of the...of quartz veins is due to hydrothermal agencies, of which evidences are still to be found in the hot springs and recent metalliferous veins met with in... | |
 | 1868 - 1022 pages
...has been dissolved in pure water, but rather in waters containing various acids, alkalies, salts, &c. which they adhered, and that a subsequent deposition...as " horses." (c) The formation of quartz veins is often due to hydrothennal agencies, of which evidences are still to be found in the hot springs and... | |
 | 1869 - 488 pages
...the analysis given in the paper, chiefly composed of carbonate of soda, mixed with a little chlorid of sodium and sulphate of soda. General deductions....of quartz veins is due to hydrothermal agencies, of which evidences are still to be found in the hot springs and recent metalliferous veins met with in... | |
 | 1869 - 468 pages
...the analysis given in the paper, chiefly composed of carbonate of soda, mixed with a little chlorid of sodium and sulphate of soda. General deductions....of quartz veins is due to hydrothermal agencies, of which evidences are still to be found in the hot springs and recent metalliferous veins met with in... | |
 | 1868 - 524 pages
...the slow deposition from aqueous solutions of silica on the surfaces of the enclosing fissures*. (6) From the general parallelism with its walls of the...as " horses." (c) The formation of quartz veins is often due to hydrothermal agencies, of which evidences are still to be found in the hot springs and... | |
 | 1869 - 946 pages
...of the gold-regions of the Pacific coast would appear to lead to the following conclusions : — «. Quartz veins have generally been produced by the slow..."horses" c. The formation of quartz veins is due to hydrotherrnal agencies, of which evidences are still to be found in the hot springs and recent metalliferous... | |
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