 The latter principally, and in some instances almost entirely, consist of broken greywacke, slate, and sandstone, more or less affected by heat, and pulverized. It is probably owing to the clayey nature of these fragments, when reduced to great fineness,...  The Edinburgh Journal of Science - Pàgina 1421826Visualització completa - Sobre aquest llibre
 | 1826 - 434 pàgines
...perished with so much of other and more valuable information. The volcanic eruptions of the Lower Eifi'el have burst through the exposed surface of the transition...burst through the banks encircling the crater, or from the slow erosion of the stream by which it discharged itself. In the last case, the sides of the... | |
 | 1826 - 628 pàgines
...instances almost entirely, consist of broken greywacke, slate, and sandstone, more or less ail'ected by heat, and pulverized. It is probably owing to the...burst through the banks encircling the crater, or from the slow erosion of the stream by which it discharged itself. In the last case, the sides of the... | |
 | 1826 - 418 pàgines
...with that of Laach and the Upper Eiffel, though the points oh which eruptions have taken place are larly along the course of the river Kyll, than at...burst through the banks encircling the crater, or ' from the slow erosion of the stream by which it discharged itself. In the Jast case, the sides of... | |
 | George Poulett Scrope - 1862 - 522 pàgines
...matters. The latter principally, and in some instances almost entirely, consist of broken greywacke-slate and sandstone, more or less affected by heat, and...burst through the banks encircling the crater, or from the slow erosion of the stream by which it discharged itself. In the last case, the sides of the... | |
 | George Poulett Scrope - 1862 - 518 pàgines
...consist of broken greywacke-slate and sandstone, more or less affected by heat, and pulverized. It ia probably owing to the clayey nature of these fragments,...burst through the banks encircling the crater, or from the slow erosion of the stream by which it discharged itself. In the last case, the sides of the... | |
 | Georg Hartwig - 1871 - 612 pàgines
...volcanic region in Rhenish Prussia, where, probably owing to the clayey nature of the soil, they have become reservoirs of water, or Maare, as they are...by the natives. Most of them still have small lakes at their bottom, while others have been drained for the sake of cultivation, or by the spontaneous... | |
 | Georg Hartwig - 1871 - 570 pàgines
...volcanic region in "Rhenish Prussia, where, probably owing to the clayey nature of the soil, they have become reservoirs of water, or Maare, as they are...by the natives. Most of them still have small lakes at their bottom, while others have been drained for the sake of cultivation, or by the spontaneous... | |
 | George Poulett Scrope - 1872 - 592 pàgines
...matters. The latter principally, and in some instances almost entirely, consist of broken greywacke-slate and sandstone, more or less affected by heat, and...burst through the banks encircling the crater, or from the slow erosion of the stream by which it discharged itself. In the last case, the sides of the... | |
 | Georg Hartwig - 1887 - 166 pàgines
...volcanic region in Rhenish Prussia, where, probably owing to the clayey nature of the soil, they have become reservoirs of water, or Maare, as they are...by the natives. Most of them still have small lakes at their bottom, while others have been drained for the sake of cultivation, or by the spontaneous... | |
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