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Rating: 
Summary: The layperson's guide to understanding glaciers
Review: Bill Guyton, professor emeritus of geosciences at Cal State Chico, has
written an excellent book designed to teach people with little
knowledge of geology about the glaciers of California.The book
discusses glaciers and ice ages in general, discovery of glaciers in
California, glacial chronology, and techniques used to determine ages
of glaciations; then goes on to describe ice-age and modern glaciers
throughout California. As a bonus, Guyton has included a chapter
about the controversy surrounded formation of Yosemite Valley and a
field trip through Yosemite on which readers may see glaciers and
their effects on the landscape. Though the book is fairly complete,
well researched, and certainly well written, Guyton might have
discussed general concepts of glaciation a little bit more thoroughly.
In addition, Guyton omits recent highly controversial (and perhaps
faulty) research done in Yosemite by Jeffrey Schaffer (see _The
Geomorphic Evolution of the Yosemite Valley and Sierra Nevada
Landscapes: Solving the Riddles in the Rocks_, 1997). The book,
however, is an excellent book for anyone wanting to learn more about
California's glaciers.
Rating:
Summary: The layperson's guide to understanding glaciers
Review: Bill Guyton, professor emeritus of geosciences at Cal State Chico, haswritten an excellent book designed to teach people with littleknowledge of geology about the glaciers of California.The bookdiscusses glaciers and ice ages in general, discovery of glaciers inCalifornia, glacial chronology, and techniques used to determine agesof glaciations; then goes on to describe ice-age and modern glaciersthroughout California. As a bonus, Guyton has included a chapterabout the controversy surrounded formation of Yosemite Valley and afield trip through Yosemite on which readers may see glaciers andtheir effects on the landscape.Though the book is fairly complete,well researched, and certainly well written, Guyton might havediscussed general concepts of glaciation a little bit more thoroughly.In addition, Guyton omits recent highly controversial (and perhapsfaulty) research done in Yosemite by Jeffrey Schaffer (see _TheGeomorphic Evolution of the Yosemite Valley and Sierra NevadaLandscapes: Solving the Riddles in the Rocks_, 1997).The book,however, is an excellent book for anyone wanting to learn more aboutCalifornia's glaciers.
Rating: 
Summary: Best compilation yet of a century of erroneous glacial study
Review: Buy this book! It is destined to become a collector's item. Prof. Emeritus Bill Guyton of Cal State Chico laboriously reviewed perhaps hundreds of research papers on California's past glaciers and he has presented his synopsis in a highly readable, enjoyable book. For his effort, I give him 5 stars. Unfortunately, he was a compiler, not a field glaciologist, so he has seen very little of the total past-glacial evidence. More unfortunately, for the Sierra Nevada, which easily contained the vast bulk of past glaciers, roughly 80-90% of these glaciers - essentially those on the west side - have been grossly misinterpreted with regard to size, thickness and age. Indeed, the USGS mapped some "old glacial deposits" from aerial photos, but if you hike to these locations, you'll find no glacial evidence whatsoever. Because this book contains soooo much downright poor glacial mapping, the information in this book rates one star. (This is NOT the author's fault.) As I said, buy it, for decades from now, people will want to know what was believed at the end of the 20th century. Bill had planned to incorporate my preliminary, new-view research into his book, but the editors nixed it. As Bill wrote me, the editors said that he "should stick to generally accepted ideas and information. People reading my book would not have the background to judge the controversy, would not be interested in it, and including it would be a distraction." (We must not let the public know that science has raging controversies.) Had my book, The Geomorphic Evolution of the Yosemite and Sierra Nevada Landscapes, been in print before Prof. Guyton's book went to press, perhaps there would have been a better chance of my ideas being mentioned in it. I now take professors, geologists, geographers, and students into the range and make more converts every year. The new interpretation, based in part on well-known laws of glacial physics (which all west-side mappers have ignored), ultimately will win out. Still, there is strong opposition, perhaps most vociferously by a youthful professor, Doug Clark, who has yet to visit my 300 sites of glacial and uplift evidence. To quote Peter Birkeland, who reviewed my book (Quaternary Research, 1998, v. 50, p. 201): "In the spirit of fair play, the answer to all of "Schaffer's views lies in the field, so I challenge interested workers to put the book in their rucksacks, hike through the Sierra Nevada, and make up their own mind. How lucky we are that this is the best way for geologists and geographers to resolve controversies." And, none other than Prof. Guyton is urging me on. He is an honorable man.
Rating:
Summary: Best compilation yet of a century of erroneous glacial study
Review: Buy this book! It is destined to become a collector's item. Prof. Emeritus Bill Guyton of Cal State Chico laboriously reviewed perhaps hundreds of research papers on California's past glaciers and he has presented his synopsis in a highly readable, enjoyable book. For his effort, I give him 5 stars. Unfortunately, he was a compiler, not a field glaciologist, so he has seen very little of the total past-glacial evidence. More unfortunately, for the Sierra Nevada, which easily contained the vast bulk of past glaciers, roughly 80-90% of these glaciers - essentially those on the west side - have been grossly misinterpreted with regard to size, thickness and age. Indeed, the USGS mapped some "old glacial deposits" from aerial photos, but if you hike to these locations, you'll find no glacial evidence whatsoever. Because this book contains soooo much downright poor glacial mapping, the information in this book rates one star. (This is NOT the author's fault.) As I said, buy it, for decades from now, people will want to know what was believed at the end of the 20th century. Bill had planned to incorporate my preliminary, new-view research into his book, but the editors nixed it. As Bill wrote me, the editors said that he "should stick to generally accepted ideas and information. People reading my book would not have the background to judge the controversy, would not be interested in it, and including it would be a distraction." (We must not let the public know that science has raging controversies.) Had my book, The Geomorphic Evolution of the Yosemite and Sierra Nevada Landscapes, been in print before Prof. Guyton's book went to press, perhaps there would have been a better chance of my ideas being mentioned in it. I now take professors, geologists, geographers, and students into the range and make more converts every year. The new interpretation, based in part on well-known laws of glacial physics (which all west-side mappers have ignored), ultimately will win out. Still, there is strong opposition, perhaps most vociferously by a youthful professor, Doug Clark, who has yet to visit my 300 sites of glacial and uplift evidence. To quote Peter Birkeland, who reviewed my book (Quaternary Research, 1998, v. 50, p. 201): "In the spirit of fair play, the answer to all of "Schaffer's views lies in the field, so I challenge interested workers to put the book in their rucksacks, hike through the Sierra Nevada, and make up their own mind. How lucky we are that this is the best way for geologists and geographers to resolve controversies." And, none other than Prof. Guyton is urging me on. He is an honorable man.
Rating: 
Summary: Good overview of California glaciers for the general public
Review: I essentially agree with the previous review, with the exception that the absence of references to J. P. Schaffer's work on glaciation in the Sierra Nevada should not be viewed as a problem with the book. Speaking as a glacial geologist who has worked extensively in the Sierra Nevada, the public should know that Schaffer's work has repeatedly failed to pass scientific peer review. Until it does so, it would be irresponsible for other authors, like Guyton, to present it in any publication purporting to be a synopsis of current scientific thinking. Guyton has done a very commendable job of summarizing the latest CRITICALLY REVIEWED thinking on timing and geomorphic effects of ancient glaciation in the Sierra. I would recommend it to anyone interested in learning more about modern and ancient glaciers of California.
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