Geology of Caves


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Beyond the Deep


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The Huautla in Mexico is the deepest cave in the Western Hemisphere, possibly the world. Shafts reach skyscraper-depths, caverns are stadium-sized, and sudden floods can drown divers in an instant. With a two-decade obsession, William Stone and his 44-member team entered the sinkhole at Sotano de San Augustin. The first camp settled 2,328 feet below ground in a cavern where headlamps couldn't even illuminate the walls and ceiling. The second camp teetered precariously above an underground canyon where two subterranean rivers collided. But beyond that lay the unknown territory -- a flooded corridor that had blocked all previous comers, claimed a diver's life, and drove the rest of the team back. Except for William Stone and Barbara am Ende, who forged on for 18 more days, with no hope of rescue, to set the record for the deepest cave dive in the Western Hemisphere.




Volcanic Landforms and Surface Features


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THIS BOOK, conceived by N. M. S. , is patterned this atlas, namely to assemble into a single source after The Atlas and Glossary of Primary Sedi book a photographic record of nearly all volcanic mentary Structures by F. J. Pettijohn and P. E. Potter surface features described during the development (Springer-Verlag New York, Inc. ). We introduce of volcanology so that future workers on terrestrial this atlas with a chapter by the late Arie Polder problems can refer to these photos for comparative vaart treating the principal concepts of volcanoes or illustrative purposes. as landforms, followed by a main section of photo Also, we hope that this atlas will serve as an aid graphs of volcanic structures and features arranged to those engaged in learning or teaching the funda in 198 Plates, and then conclude with an up mentals of geology and its sub fields, such as petro dated glossary of terms associated with volcan logy or geophysics. To this end we have attempted ology, its processes and products. to create a book simple and general enough to be The atlas is, in a sense, an outgrowth of the useful even at the secondary school level, but with expanding interest in volcanology recently stimu sufficient detail and rigor to be acceptable to both lated by the exploration of neighboring planetary students and professors in the universities. Further, bodies in the solar system.




Boys' Life


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Boys' Life is the official youth magazine for the Boy Scouts of America. Published since 1911, it contains a proven mix of news, nature, sports, history, fiction, science, comics, and Scouting.







Special Publication


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Blind Descent


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“Heart-stopping and relentlessly gripping. Tabor takes us on an odyssey into unfathomable worlds beneath us, and into the hearts of rare explorers who will do anything to get there first.”—Robert Kurson, author of ShadowDivers In 2004, two great scientist-explorers attempted to find the bottom of the world. American Bill Stone took on the vast, deadly Cheve Cave in southern Mexico. Ukrainian Alexander Klimchouk targeted Krubera, a freezing nightmare of a supercave in the war-torn former Soviet republic of Georgia. Both men spent months almost two vertical miles deep, contending with thousand-foot drops, raging whitewater rivers, monstrous waterfalls, mile-long belly crawls, and the psychological horrors produced by weeks in absolute darkness, beyond all hope of rescue. Based on his unprecedented access to logs and journals as well as hours of personal interviews, James Tabor has crafted a thrilling exploration of man’s timeless urge to discover—and of two extraordinary men whose pursuit of greatness led them to the heights of triumph and the depths of tragedy. Blind Descent is an unforgettable addition to the classic literature of true-life adventure, and a testament to human survival and endurance. “Holds the reader to his seat, containing dangers aplenty with deadly falls, killer microbes, sudden burial, asphyxiation, claustrophobia, anxiety, and hallucinations far underneath the ground in a lightless world. Using a pulse-pounding narrative, this is tense real-life adventure pitting two master cavers mirroring the cold war with very uncommonly high stakes.”—Publishers Weekly (starred review) “A fascinating and informative introduction to the sport of cave diving, as well as a dramatic portrayal of a significant man-vs.-nature conflict. . . . What counts is Tabor’s knack for maximizing dramatic potential, while also managing to be informative and attentive to the major personalities associated with the most important cave explorations of the last two decades.”—Kirkus Reviews Includes a 16-pg black and white insert