 Thermal springs, charged with carbonic acid and with hydrofluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction in rocks through which they percolate. If, therefore, large bodies of...  The Canadian Naturalist and Geologist - Page 3951864Full view - About this book
 | 1864 - 348 lehte
...with carbonic acid and with hydro-fluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...comparatively unaltered, retaining their fossil remains undefaced, while newer rocks are rendered metamorphic. This may happen where the waters, after passing... | |
 | 1864 - 412 lehte
...with carbonic acid and with hydrofluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...comparatively unaltered, retaining their fossil remains undefaced, while newer rocks are rendered metamorphic. This may happen where the waters, after passing... | |
 | 1864 - 126 lehte
...with carhonic acid and with hydro-fluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...through which they percolate. If, therefore, large hodies of hot water permeate mountain-masses at great depths, they may in the course of ages snperinducn... | |
 | Henry Woodward - 1864 - 370 lehte
...igneous fusion from which they were once supposed to have crystallized. Thermal waters are known to be 'powerful causes of decomposition and chemical reaction in rocks through which they percolate;' and their partial interference with strata at different horizons (the possibility of which Sir Charles... | |
 | 1865 - 400 lehte
...with, carbonic acid and with fluohydric acid (which last is often present ia small quantities), are powerful causes of decomposition and chemical reaction...comparatively unaltered, retaining their fossil remains undefaced, while newer rocks are rendered melamorphic. This may happen where the waters, after passing... | |
 | British Association for the Advancement of Science - 1865 - 816 lehte
...with carbonic acid and w- ¿h hydrofluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...comparatively unaltered, retaining their fossil remains undefaced, w.iile newer rocks are rendered metamorphic. This may happen where tbe waters, after passing... | |
 | 1865 - 388 lehte
...with carbonic acid and with hydro-fluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...crystalline structure ; and, in some cases, strata ma lower position and of older date may be comparatively unaltered, retaining their fossil remains... | |
 | 1865 - 372 lehte
...with carbonic acid and with hydro-fluoric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...superinduce in them a crystalline structure ; and, iu some cases, strata in a lower position and of older date may be comparatively unaltered, retaining... | |
 | 1865 - 846 lehte
...with carbonic acid and with fluohydric acid (which last is often present in small quantities), are powerful causes of decomposition and chemical reaction...If, therefore, large bodies of hot water permeate mountain -masses at great depths, they may in the course of ages superinduce in them a crystalline... | |
 | Charles Lyell - 1865 - 830 lehte
...carbonic acid, and especially with hydrofluoric acid, whicli is often present iu small quantities, are powerful causes of decomposition and chemical re-action in rocks through which they percolate. The changes which Daubree has shown to have been produced by the alkaline waters of Plombieres in the... | |
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