Excerpt from The Pleistocene of Indiana and Michigan and the History of the Great Lakes Chapter XXIV. Postglacial development of connecting rivers of the Great Lakes - Continued. St. Clair River - Continued. St. Clair delta - Continued. Age of the delta Gravel spit at-head of St. Clair River Lake St. Clair Detroit River Detroit River at Detroit. Distributaries Lake Rouge: Detroit River near Trenton and Amherstburg Distributaries near Trenton Early distributaries. Creases Late distributaries Grosse Isle natural canals. Rockwood distributaries. Distributaries near Amherstburg Relation of early distributaries to Lake Rouge Development of the Detroit River estuary. Drowning of Lake Erie shore Drowned distributary channels Recent and progressing changes in Detroit River Flooding of tributaries Cause of ooding Tributaries of Detroit River Tributaries of Lake St. Clair Tributaries of St. Clair River Progress of overdeepening and drowning or ooding First deepening Channel making during time Of Lake Algonquin Second or last deepening Present drowning or ooding Relative ages of the connecting rivers. Chapter XXV. Deformation of shore lines, by F. B. Taylor Possible causes Hinge lines and areas of uplift. Ice attraction Resilience following depression by ice weight. Relations of uplift to retreat of ice Theoretical principles Theoretical and actual uplift Lake Superior region Ice lobes and driftless reentrants Relation of ice weight and binge lines to ice margin Efiect Of driftless areas Shifting of the hinge line Absence of recent faults pre-wisconsin depression and resilience Relation of isobases to the pie-cambrian boundary Eustatic and oscillatory movements Tectonic earth movements Wide range of phenomena. Crustal creep Conclusions Chapter XXVI. Economic resources, by Frank Leverett Erratics in the drift. Marl or bog lime 8 Peat Clay. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."

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.

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