Handy Geology Answer Book

Handy Geology Answer Book


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The award-winning science writers answer such puzzlers as:
What is the theory of continental drift?
What are polarity reversals?
Why are minerals certain colors?
How does wood become petrified?
They deliver captivating reading and easy understanding of the complexities that shaped our planet, as they answer nearly 1,000 of the most often asked questions.

The book is organized into 21 topical chapters, tracing the formation of the universe and the planet, investigating the layers of the Earth, and explaining the formation of mountains and bodies of water. Questions and answers are also devoted to volcanoes, fault lines, caves, fossil fuels, world morphological features, and even the geology of other planets. Entertaining and informative, Handy Geology combines vivid, clear writing with a great format. There?s also a helpful glossary and a resource section on educational places, government organizations, sources of geological supplies, and other references, including geo-magazines and web sites.

The Amateur Geologist says: "This became an instant favorite. Here's a book that you can pick up and learn geology at your pace. You don't have to be structured, just investigate what ever strikes your fancy. Need to just look up a quick question? This book works great for that too. At 491 pages and 2 and 1/4 pounds it's not a pocket or even a backpack book but it should still should be in your vehicle when you're in the field!"

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    Minerals are naturally occurring chemical compounds or elements found in the earth's crust and are the building blocks of rocks. Rocks may contain only a single mineral, but usually they contain a mixture of many minerals.

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    Igneous rocks were once lava or magma, that is, a molten collection of minerals. The rate at which a lava or magma cools and solidifies influences rock texture, making it either fine, medium or coarse grained.

    7. Pumice - A light colored volcanic rock of rhyolitic composition; the texture results from bubbles formed by escaping gasses.
    8. Obsidian - Very rapid cooling caused this volcanic rock to have its glassy appearance.
    9. Basalt - This dark-colored, extrusive rock occurs as large flows, dikes, and sills.
    10. Rhyolite - Quartz and microcline are the major components of rhyolite.
    11. Andesite - The feldspar phenocrysts present in this light-colored, extrusive rock are the result of relatively slowly cooling lava at shallow depths.
    12. Granite - Feldspars and quartz made up the majority of this intrusive rock.


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    13. Mica Schist - This rock is a highly metamorphosed shale. All schists exhibit shistose structure; the generally parallel alignment of micaceous minerals.
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    24. Limestone - This sedimentary rock is made up primarily of calcite. Some limestones are chemical in origin, while other are clastic.

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