Practical Geology And Mineralogy Microform With Instructions for the Qualita
Practical Geology And Mineralogy Microform With Instructions for the Qualita
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In our eReader you can find the full English version of the book. Read Practical Geology And Mineralogy Microform With Instructions for the Qualita Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Practical Geology And Mineralogy Microform With Instructions for the Qualita
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Organic Remains. The rocks of the Cambrian group afford the first undoubted traces of organic remains. They occur at but few points, and in small quantities, amidst a great thickness of sedimentary rocks, extending over a wide area, and this circum- stance, connected with the paucity of species where the fossils are in the greatest abundance, appears favourable to the presump- tion that the absence of organic remains from the older stratified rocks of the mica slate and gneiss systems, is not t...he effect of any process by which they have been destroyed, and that in the Cambrian rocks we behold the first appearance of organic life upon the surface of our planet. Even the limestones, which, in more modern formations, abound in fossils, contain them but sparingly in the Cambrian system. In Cumberland, organic re- mains have not been detected in the slates, but they occur in the dark slaty limestone of Coniston Water. In Caernarvonshire they are found in Snowdon, in a coarse slate, and in greater abundance in the Bala limestone.
What to read after Practical Geology And Mineralogy Microform With Instructions for the Qualita?
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To quickly assess the difficulty of the text, read a short excerpt:
Organic Remains. The rocks of the Cambrian group afford the first undoubted traces of organic remains. They occur at but few points, and in small quantities, amidst a great thickness of sedimentary rocks, extending over a wide area, and this circum- stance, connected with the paucity of species where the fossils are in the greatest abundance, appears favourable to the presump- tion that the absence of organic remains from the older stratified rocks of the mica slate and gneiss systems, is not t...he effect of any process by which they have been destroyed, and that in the Cambrian rocks we behold the first appearance of organic life upon the surface of our planet. Even the limestones, which, in more modern formations, abound in fossils, contain them but sparingly in the Cambrian system. In Cumberland, organic re- mains have not been detected in the slates, but they occur in the dark slaty limestone of Coniston Water. In Caernarvonshire they are found in Snowdon, in a coarse slate, and in greater abundance in the Bala limestone.
What to read after Practical Geology And Mineralogy Microform With Instructions for the Qualita?
You can find similar books in the "Read Also" column, or choose other free books by Joshua Trimmer to read onlineMoreLess
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