 | 1846 - Страниц: 674
...The scaglia is usually referred to the cretaceous sera; but, judging from the singular assemblages of fossils found in some parts of it, as at Mount...of a great ocean during the whole of the secondary epoch. The history of the sandy beds which rest upon the scaglia is more difficult to understand, unless... | |
 | Geological Society of London - 1846 - Страниц: 742
...The scaglia is usually referred to the cretaceous aera ; but, judging from the singular assemblages of fossils found in some parts of it, as at Mount...of a great ocean during the whole of the secondary epoch. The history of the sandy beds which rest upon the scaglia is more difficult to understand, unless... | |
 | Geological Society of London - 1846 - Страниц: 678
...The scaglia is usually referred to the cretaceous aera ; but, judging from the singular assemblages of fossils found in some parts of it, as at Mount...of a great ocean during the whole of the secondary epoch. The history of the sandy beds which rest upon the scaglia is more difficult to understand, unless... | |
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of fossils found in some parts of it, as at Mount Lebanon, and from its great thickness, extent, and uniformity of mineral character, it is not improbable that it was a formation, the deposition of which went on without interruption in the depths of a... 