Download or read book Iowa s Geological Past written by Wayne I. Anderson and published by University of Iowa Press. This book was released on 1998 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Iowa's rock record is the product of more than three billion years of geological processes. The state endured multiple episodes of continental glaciation during the Pleistocene Ice Age, and the last glacier retreated from Iowa a mere (geologically speaking) twelve thousand years ago. Prior to that, dozens of seas came and went, leaving behind limestone beds with rich fossil records. Lush coal swamps, salty lagoons, briny basins, enormous alluvial plains, ancient rifts, and rugged Precambrian mountain belts all left their mark. In "Iowa's Geological Past, " Wayne Anderson gives us an up-to-date and well-informed account of the state's vast geological history from the Precambrian through the end of the Great Ice Age. Anderson takes us on a journey backward into time to explore Iowa's rock-and-sediment record. In the distant past, prehistoric Iowa was covered with shallow seas; coniferous forests flourished in areas beyond the continental glaciers; and a wide variety of animals existed, including mastodon, mammoth, musk ox, giant beaver, camel, and giant sloth. The presence of humans can be traced back to the Paleo-Indian interval, 9,500 to 7,500 years ago. Iowa in Paleozoic time experienced numerous coastal plain and shallow marine environments. Early in the Precambrian, Iowa was part of ancient mountain belts in which granite and other rocks were formed well below the earth's surface. The hills and valleys of the Hawkeye State are not everlasting when viewed from the perspective of geologic time. Overall, Iowa's geologic column records an extraordinary transformation over more than three billion years. Wayne Anderson's profusely illustrated volume provides a comprehensive and accessible survey of the state's remarkable geological past.

Download or read book Landforms of Iowa written by Jean Cutler Prior and published by University of Iowa Press. This book was released on 1991 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Iowa s Minerals written by Paul Garvin and published by University of Iowa Press. This book was released on 2010-09-13 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his carefully written text, geologist Paul Garvin has combined scientific facts about minerals with an appreciation of their history and beauty to produce a book that will appeal to scholars, collectors, and the general public. Garvin begins with a brief treatment of the origins of Iowa's minerals, moving from the oldest - with ages well in excess of a billion years - to those most recently formed. He describes the state's major mineral occurrences, providing detailed information for both specialists and amateurs, including how to obtain access to collecting sites. A history of Iowa's mineral industries complements Garvin's more technical information; this history is supplemented with stories about the Cardiff Giant (who now has his own web page), Ottumwa's Coal Palace, and the meteor falls of the late nineteenth century.

Download or read book Report of a Geological Exploration of Part of Iowa Wisconsin and Illinois written by David Dale Owen and published by . This book was released on 1844 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of a Geological Survey of Wisconsin Iowa and Minnesota written by David Dale Owen and published by . This book was released on 1852 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of Iowa written by Wayne I. Anderson and published by Iowa State Press. This book was released on 1983 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to North American Geology Paleontology Petrology and Mineralogy for the Years 1892 1900 Inclusive written by Fred Boughton Weeks and published by . This book was released on 1902 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ILLUSTRATIONS OF THE GEOLOGICAL REPORT OF WISCONSIN IOWA AND MINNESOTA written by DAVID DALE OWEN and published by . This book was released on 1852 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book pt 1 Geology written by Iowa Geological Survey and published by . This book was released on 1858 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology Underfoot in Illinois written by Ray Wiggers and published by Mountain Press Publishing. This book was released on 1997 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Copious illustrations and witty, page-turning prose guide readers on geologic walking or driving tours of 37 sites in Illinois.

Download or read book Catalogue and Index of Contributions to North American Geology 1732 1891 written by Nelson Horatio Darton and published by . This book was released on 1896 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the Geological Society of America written by and published by . This book was released on 1928 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Iowa Underground written by Greg A. Brick and published by Big Earth Publishing. This book was released on 2004 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Take a mysterious and fascinating tour through Iowa's underground treasures. This guide will reveal the state's subterranean attractions including show and wild caves, springs, mining sites and other geological and man-made sites. If you are a sport caver, a scientist, or curious tourist, this guide will give you all you need to know to begin exploring Iowa's underground world. IN THIS BOOK YOU'LL FIND - Detailed directions with helpful tips and precautions. - Descriptions of various lead- and coal-mining museums. - Fun stories and legends, including cave fairies, trolls, and ghost towns. - Additional information about Iowa's coal-mining past. - Facts about underground biological life. "A uniquely written perspective on the underground wonders of Iowa, by a premier Midwest cave historian." --Gary K. Soule, Speleo Historian and Trustee, American Spelean History Association

Download or read book Iowa Gems and Minerals in Your Pocket written by Paul Garvin and published by University of Iowa Press. This book was released on 2012-06-01 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the spiky teeth of a geode containing sparkling quartz crystals, the rich browns and golds of smoky quartz and goethite needles on calcite, and the coral-like branches of plumose barite to the abstract reds and whites of polished agate cabochons, world-class mineral crystals are harvested from the rocks of the Hawkeye State. Collecting these high-quality crystals requires access to active mines, pits, and quarries, and individual collectors are rarely allowed entrance to these facilities. With information about each specimen’s type, source, size, and current location, Paul Garvin and Anthony Plaut’s Iowa Gems and Minerals in Your Pocket provides access to the glittering, gleaming world of Iowa crystals. Most, if not all, of Iowa’s gems and minerals are products of crystallization in underground cavities that filled with water containing dissolved chemicals. The famed Iowa geodes (Iowa’s state rock) are products of a complex process of replacement and cavity-filling in the Warsaw Shale. Armored by a rind of tough chalcedonic quartz, these spheroidal masses, which range up to more than a meter across, weather out of the host rock and accumulate along streams in the southeastern part of the state. During the Pleistocene Epoch, large masses of glacial ice rafted the ultra-fine-grained variety of quartz called Lake Superior agates, which had previously weathered out of their host rocks, southward into Iowa. They can be found in the gravels that have accumulated along major streams in the eastern half of the state. Iowa’s long record of mining lead, coal, gypsum, and limestone contains a rich history; the forty-seven mineral specimens inIowa Gems and Minerals in Your Pocketmake up a fascinating illustrated guide to that history. Carefully lit and photographed to reveal both maximum detail and maximum beauty, each specimen becomes a work of art.

Download or read book Annals of the Former World written by John McPhee and published by Farrar, Straus and Giroux. This book was released on 2000-06-15 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pulitzer Prize-winning view of the continent, across the fortieth parallel and down through 4.6 billion years Twenty years ago, when John McPhee began his journeys back and forth across the United States, he planned to describe a cross section of North America at about the fortieth parallel and, in the process, come to an understanding not only of the science but of the style of the geologists he traveled with. The structure of the book never changed, but its breadth caused him to complete it in stages, under the overall title Annals of the Former World. Like the terrain it covers, Annals of the Former World tells a multilayered tale, and the reader may choose one of many paths through it. As clearly and succinctly written as it is profoundly informed, this is our finest popular survey of geology and a masterpiece of modern nonfiction. Annals of the Former World is the winner of the 1999 Pulitzer Prize for Nonfiction.

Download or read book Bulletin of the United States Geological Survey written by and published by . This book was released on 1902 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Index of North American Geology Paleontology Petrology and Mineralogy for the Years 1892 1900 Inclusive written by Fred Boughton Weeks and published by . This book was released on 1902 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: