Twenty-five years after writing the groundbreaking Roadside Geology of Northern California, David Alt and Donald W. Hyndman have written an entirely new book--with expanded coverage, new photos and maps, and the latest interpretations of California's turbulent rocks. Geologic road guides include tours of Lake Tahoe, Yosemite National Park, Lassen Volcanic National Park, Lava Beds National Monument, Kings Canyon National Park, Point Reyes National Seashore, and the San Francisco Bay area. Learn about earthquake prediction, gold mining, pillow basalts, cinder cones, and more with this book as your guide.
Illinois--a flat and boring state with nothing but cornfields and crowded expressways, right? Balderdash! Geology Underfoot in Illinois scratches the Prairie State's surface to expose geologic diversity that stretches back more than a billion years.
Copious illustrations and witty, page-turning prose guide readers on geologic walking or driving tours of thirty-seven sites in Illinois. Enjoy an unexpected exploration of Chicago's architectural geology. Embark on a fault-seeking expedition in Mark Twain's big-river country. Or try moraine-surfing on Interstates 55 and 74. With a touch of curiosity and Geology Underfoot in Illinois in hand, you will view the state with a new sense of wonder.
California is one of the most geologically varied and beautiful settings on
the Earth's surface. This unique "geohiking" guide leads you to fantastic trails
showcasing its features of geological interest and explains how the forces
of nature shaped our landscape.
Trails range from family walks on nature trails or guided cave tours to more
challenging mountain treks. Full directions and difficulty ratings are included
plus options for activities ranging from viewing wildflowers or sea life to
visiting historical sites.
Whether geologist is you passion, or you're "geologically challenged," this
book "rocks!" The authors' engaging and vivid descriptions of the flora, fauna
and natural and human history of the sites offer many opportunities for memorable
That's not all that's changed in this reader-friendly new edition: 50 percent of the photographs are new; all the maps have been updated; and seven new road guides lead you on spectacular trips--including Colorado 65, which crosses over the Grand Mesa. Chronic and Williams break Colorado into four digestible geographic regions: the Plains, the Rockies, the Plateaus, and the San Juans. The authors also guide you through several national treasures, including Black Canyon of the Gunnison National Monument, Rocky Mountain National Park, Dinosaur National Monument, Great Sand Dunes National Monument, Mesa Verde National Park, and Florissant Fossil Beds National Monument.
Although the ground seems solid and immovable, the Earth we walk on is in a constant state of change. The imperceptibly slow shifting of the Earth under our feet has immense effects--some of which, such as volcanoes and earthquakes, are catastrophic.
The Essential Science series makes the difficult and fascinating world of cutting-edge science accessible to everyone with a stimulating mix of lively illustrations and jargon-free text. Important scientific theories are explained clearly in these authoritative guides that feature cross-references, glossaries, and thorough indexes.
The Raytech Tumble-Vibe 5 Vibratory Tumbler (Model TV-5) is economical and versatile.
Thousands of satisfied customers testify to the durability and simplicity of the Tumble-Vibe 5. Mated with a spare bowl, and a GSH-2 Stone finish Kit, the new TV-5 Starter Kit is a must for any beginner.
This new kit comes complete and ready to operate with a motorized base, two bowls, clear lid, 2 rubber nuts and all the grits necessary for accomplishing the grinding step through the final polish step of most gemstones. The (4) steps that are included are Silicone Carbide (100/1200) Silicon Carbide (700F), Iolox 50, Raybrite TL (GS-H2 Stone Finish Kit for hard rocks and minerals). There's enough grit for 8-15 pounds of stones. This new compact system will handle a myriad of applications. (Polished stones for illustration only. They are not included with this tumbler.)
Check out this article on Vibratory Tumblers
This popular low-cost unit is a favorite of the hobbyist and is used commercially as well. Vibrating rock tumblers process rocks 5 times faster than rotary rock tumblers. See results in days rather than weeks! This vibrating rock tumbler will process about four pounds of rock in it's .05 cu ft (3 pint) bowl. Bowl diameter is 8" and has a new convenient solid lid system. Shipping weight is 12 lbs., 1.05 cu. ft.
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