Quaternary Glaciation of the Great Lakes Region

Quaternary Glaciation of the Great Lakes Region

Author: Alan Kehew

Publisher: Geological Society of America

Published: 2018

Total Pages: 252

ISBN-13: 0813725305

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Taking advantage of new technological advances in Quaternary geology and geomorphology, this volume showcases new developments in glacial geology. Honoring the legacy of Frank Leverett and F.B. Taylor's 1915 USGS monograph of the region, this book includes 12 chapters that cover diverse topics ranging from hydrogeology, near-surface geophysics, geotectonics, and vertebrate paleontology to glacial geomorphology and glacial history. Several papers make use of detailed but nuanced shaded relief maps of digital elevation models of LiDAR data; these advances are brought into historical perspective by visiting the history of geologic mapping of Michigan. Looking forward, interpretations of the shaded relief maps evoke novel processes, such as regional evolution of subglacial and supraglacial drainage systems of receding glacial margins. The volume also includes assessment of chronological issues in light of greater accuracy and precision of radiocarbon dating of plant fossils using accelerator mass spectrometry versus older techniques.


Wisconsin Land and Life

Wisconsin Land and Life

Author: Robert Clifford Ostergren

Publisher: Univ of Wisconsin Press

Published: 1997

Total Pages: 588

ISBN-13: 9780299153540

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Rolling green hills dotted with Holstein cows, red barns, and blue silos. The Great Lakes ports at Superior, Ashland, and Kenosha. A Polish wedding dance or a German biergarten in Milwaukee. The dappled quiet of the Chequamagon forest. A weatherbeaten but tidy town hall at the intersection of two county trunk highways. Ojibwa families gathering wild rice into canoes. The boat ride through the Dells. The upland ridges of the Driftless Area, falling away into hidden valleys. . . . These are images of Wisconsin's land and life, images that evoke a strong sense of place. This book, Wisconsin Land and Life, is an exploration of place, a series of original essays by Wisconsin geographers that offers an introduction to the state's natural environment, the historical processes of its human habitation, and the ways that nature and people interact to create distinct regional landscapes. To read it is to come away with a sweeping view of Wisconsin's geography and history: the glaciers that carved lakes and moraines; the soils and climate that fostered the prairies and great northern pine forests; the early Native Americans who began to shape the landscape and who established forest trails and river portages; the successive waves of Europeans who came to trade in furs, mine for lead and iron, cut the white pines, establish farms, work in the lumber and paper mills, and transform spent wheatfields into pasture for dairy cattle. Readers will learn, too, about the platting and naming of Wisconsin's towns, the establishment of county and township governments, the growth of urban neighborhoods and parishes, the role of rivers, railroads, and religion in shaping the state's growth, and the controversial reforestation of the cutover lands that eventually transformed hardscrabble farms and swamps into a sportsman's paradise. Abundantly illustrated with photos and maps, this book will richly reward anyone who wishes to learn more about the land and life of the place we know as Wisconsin.