Not long ago, he reminds us, the world was once considered to be like a drying apple. Some areas shrink driving other places to rise leaving a skin of folds. McPhee describes the history of the idea of plate tectonics and how it confounded this earlier concept. The starting point was an understanding of the earth's age. A Scottish "gentleman," James Hutton was an astute observer and an eloquent speaker. Putting his findings in writing, however, "trampled people with words." Hutton revealed the vast duration of time required to form earth's vistas. He was followed by a herald of Charles Darwin, Charles Lyell. Between them, the age of the earth and of life replaced the established biblical origins. In effect, Hutton had taken the next major step in science after Copernicus. Plate tectonics, a group, rather than an individual's insight, opened new fields of research and provided more detailed views of Earth's processes. Among the pictures are better indicators of finding valuable resources.
McPhee's other works provide testimony to his physical courage, which is immense. Join him as he drives a twisting mountain road with a geologist on a quest: "We turned a last corner, with our inner wheels resting firmly on the road and the two others supported by Deffeyes' expectations." McPhee has joined Kenneth Deffeyes to learn about the building of the Basin and Range - the succession of mountain strings and the valleys separating them. Through McPhee, Deffeyes relates how the mountains were thrust up, eroding silt into the lowlands. Mountain building forces also produce other interesting results. Deffeyes, "a big man with a tenured waistline" by McPhee's description, has "pure and noble purposes in coming to Nevada." His quest for "pure science" investigation is one side of Deffeyes' character. The other side is his pursuit of a "noble" metal - silver. Deffeyes knows of how plate tectonics works. He also grasps the history of the Nevada mining industry. The combination may make him a millionaire from refining abandoned mines. But there are risks and he tells McPhee " . . . if anybody comes after me, I want you to go to jail cheerfully rather than surrender your notes." Fortunately, McPhee is still outside prison walls writing for us.
This first of several works on the revolution in thinking inspired by plate tectonics remains a readable and valuable book. McPhee doesn't confine his talents to imparting what scientists do. Arcane topics are deftly woven with our everyday lives and ambitions. Sit beside him in a cafe in Nevada as he queries patrons on their reaction to the possibility that the sea will someday flood their region: "We got a boat." His careful balance of deep science and everyday life has received many accolades, but never quite enough. The best reward is to buy him and read him - and the benefits to the reader will be the more enduring.
He begins the book in New Jersey, three thousand miles from what readers know as the Basin and Range province. Though his motive is not entirely clear, one may be able to detect that McPhee is showing a possible evolutionary movement for the Basin and Range where the processes occurring in the province today may lead to a morphology similar to present-day New Jersey. Rather than straightforwardly addressing the Basin and Range (as a textbook may do), McPhee opts to intersperse his discussion of the landscape with discussions of nomenclature to geologic time to the unreliability of a geologist as a driver. When the author does directly confront the Basin and Range it is nothing overwhelming-some block faulting here, dry lakebeds there-in an attempt to make the geology sound simplistic when that could hardly be farther from true.
While the book has definite merit as a primer on geologic formation processes of the Basin and Range, the reader is forced to compete with McPhee's flowery stream-of-conscience writing style. A reader with no geologic background may be able to glean some information from this book. That which is gained, however, will be more subtle and anecdotal than anything else. While McPhee's simplification of the processes that formed the Basin and Range may be helpful at an amateur level, it may as well be frustrating and cannot compete with the knowledge one would gain from reading a more formal publication.