Excerpt from The Miner's Guide, and Metallurgist's Directory For nearly 100 feet we shall pass through layers of loam, clay, sand, and fine gravel. This deposite, from an existing river, is denominated alluvium, which is the soil and earth which rests upon the rocks. Having penetrated this, we shall find our selves upon the second formation, called draft or dilum'um. This is composed of coarse sand and gravel, with fine sand, containing large rounded masses of rock called bowlders. The third series of strata which we shall ...
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Excerpt from The Miner's Guide, and Metallurgist's Directory For nearly 100 feet we shall pass through layers of loam, clay, sand, and fine gravel. This deposite, from an existing river, is denominated alluvium, which is the soil and earth which rests upon the rocks. Having penetrated this, we shall find our selves upon the second formation, called draft or dilum'um. This is composed of coarse sand and gravel, with fine sand, containing large rounded masses of rock called bowlders. The third series of strata which we shall penetrate, is composed of layers of clay, sand, gravel, and marl, with occa sional beds of quartz and limestone. They contain many petrifactions, and are usually horizontal. They are called tertiary. After passing through these, we come to the secondary, composed for the most part of solid rock, mostly made up of sand, clay, and pebbles, cemented together. With these we find many remains of animals and plants, gray wacke, limestone, sandstone, coal, lias, clay, marl, green sand, and chalk. Below this are the primary rocks. They are destitute of organic remains, have a structure always crystalline, and are more highly inclined. Here occur granite, gneiss, mica slate, limestone, gypsum, talcose slate, hornblende slate, quartz rocks, and clay slate. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
