Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1990 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1990 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Arizona Geology written by and published by . This book was released on 1991 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to the Geology of the Flagstaff Area written by John Bezy and published by . This book was released on 2003-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Situated on the Colorado Plateau at 7,000 feet above sea level, Flagstaff is home to three national monuments and the San Francisco volcanic field. John Bezy¿s ¿Guide to the Geology of the Flagstaff Area¿ is the one guide you need for exploring the marvelous and diverse geology of northern Arizona. Written for the general public, the 53-page text includes more than 45 pictures and illustrations, from the cross-bedded Coconino Sandstone of Walnut Canyon to squeeze-ups on the Bonito lava flow of Sunset Crater.The text walks you through a lava tube, to the edge of a sinkhole, and along the chilled margin of a pristine lava flow, all the while explaining the processes that shaped the spectacular geologic scenery of Flagstaff and environs.

Download or read book Southwestern Desert Resources written by William L. Halvorson and published by University of Arizona Press. This book was released on 2023-01-17 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The southwestern deserts stretch from southeastern California to west Texas and then south to central Mexico. The landscape of this region is known as basin and range topography featuring to “sky islands” of forest rising from the desert lowlands which creates a uniquely diverse ecology. The region is further complicated by an international border, where governments have caused difficulties for many animal populations. This book puts a spotlight on individual research projects which are specific examples of work being done in the area and when they are all brought together, to shed a general light of understanding the biological and cultural resources of this vast region so that those same resources can be managed as effectively and efficiently as possible. The intent is to show that collaborative efforts among federal, state agency, university, and private sector researchers working with land managers, provides better science and better management than when scientists and land managers work independently.

Download or read book Accommodation zones and transfer zones the regional segmentation of the Basin and Range Province written by James E. Faulds and published by Geological Society of America. This book was released on 1998-01-01 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on the geometry, kinematic development, and origin of regional segmentation structures within the basin and range province of Western North America. Contributions range from analysis of individiual structures to broad regional syntheses, including a map of basin and range structures and tilt domains. Several papers discuss the implications of regional segmentation structures in assessing seismic hazards, hydrocarbon and mineral resources, and ground-water supplies.

Download or read book Archaeometry of Pre Columbian Sites and Artifacts written by David A. Scott and published by Getty Publications. This book was released on 1994-10-27 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the 28th International Archaeometry Symposium jointly sponsored by the University of California, Los Angeles, and the Getty Conservation Institute, this volume offers a rare opportunity to survey under a single cover a wide range of investigations concerning pre-Columbian materials. Twenty chapters detail research in five principal areas: anthropology and materials science; ceramics; stone and obsidian; metals; and archaeological sites and dating. Contributions include Heather Lechtman's investigation of “The Materials Science of Material Culture,” Ron L. Bishop on the compositional analysis of pre-Columbian pottery from the Maya region, Ellen Howe on the use of silver and lead from the Mantaro Valley in Peru, and J. Michael Elam and others on source identification and hydration dating of obsidian artifacts.

Download or read book Placer Gold Deposits of Arizona Classic Reprint written by Maureen G. Johnson and published by Forgotten Books. This book was released on 2017-10-28 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Placer Gold Deposits of Arizona Eighty-seven placer districts in Arizona are estimated to have produced a mini mum Oi ounces of placer gold from 1774 to 1968. The location, areal extent, past production, mining history, and probable lode source summarized for each district are based on information Obtained from a wide variety of published reports relating to placer deposits. Annotated references to all reports that contain information about individual deposits are given for each district. 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.

Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1990 with total page 1660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Deposits of the Santa Rita and Patagonia Mountains Arizona written by Frank Charles Schrader and published by . This book was released on 1915 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Ore Deposits of the Globe Miami District Arizona written by Nels Paul Peterson and published by . This book was released on 1962 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the district of known productive deposits are several large areas underlain by rocks that are younger than the period of mineralization and that may conceal other ore bodies.

Download or read book Terrestrial Ecosystems Through Time written by Anna K. Behrensmeyer and published by University of Chicago Press. This book was released on 1992-08-15 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Breathtaking in scope, this is the first survey of the entire ecological history of life on land—from the earliest traces of terrestrial organisms over 400 million years ago to the beginning of human agriculture. By providing myriad insights into the unique ecological information contained in the fossil record, it establishes a new and ambitious basis for the study of evolutionary paleoecology of land ecosystems. A joint undertaking of the Evolution of Terrestrial Ecosystems Consortium at the National Museum of Natural History, Smithsonian Institution, and twenty-six additional researchers, this book begins with four chapters that lay out the theoretical background and methodology of the science of evolutionary paleoecology. Included are a comprehensive review of the taphonomy and paleoenvironmental settings of fossil deposits as well as guidelines for developing ecological characterizations of extinct organisms and the communities in which they lived. The remaining three chapters treat the history of terrestrial ecosystems through geological time, emphasizing how ecological interactions have changed, the rate and tempo of ecosystem change, the role of exogenous "forcing factors" in generating ecological change, and the effect of ecological factors on the evolution of biological diversity. The six principal authors of this volume are all associated with the Evolution of Terrestrial Ecosystems program at the National Museum of Natural History, Smithsonian Institution.

Download or read book John of the Mountains written by John Muir and published by Univ of Wisconsin Press. This book was released on 1979 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: John Muir, America's pioneer conservationist and father of the national park system, was a man of considerable literary talent. As he explored the wilderness of the western part of the United States for decades, he carried notebooks with him, narrating his wanderings, describing what he saw, and recording his scientific researches. This reprint of his journals, edited by Linnie Marsh Wolfe in 1938 and long out of print, offers an intimate picture of Muir and his activities during a long and productive period of his life. The sixty extant journals and numerous notes in this volume were written from 1867 to 1911. They start seven years after the time covered in The Story of My Boyhood and Youth, Muir's uncompleted autobiography. The earlier journals capture the essence of the Sierra Nevada and Alaska landscapes. The changing appearance of the Sierras from Sequoia north and beyond the Yosemites enthralled Muir, and the first four years of the journals reveal his dominating concern with glacial action. The later notebooks reflect his changes over the years, showing a mellowing of spirit and a deep concern for human rights. Like all his writings, the journals concentrate on his observations in the wilderness. His devotion to his family, his many warm friendships, and his many-sided public life are hardly mentioned. Very little is said about the quarter-century battle for national parks and forest reserves. The notebooks record, in language fuller and freer than his more formal writings, the depth of his love and transcendental feeling for the wilderness. The rich heritage of his native Scotland and the unconscious music of the poetry of Burns, Milton, and the King James Bible permeate the language of his poetic fancy. In his later life, Muir attempted to sort out these journals and, at the request of friends, published a few extracts. A year after his death in 1914, his literary executor and biographer, William Frederick Badè, also published episodes from the journals. Linnie Marsh Wolfe set out to salvage the best of his writings still left unpublished in 1938 and has thus added to our understanding of the life and thought of a complex and fascinating American figure.

Download or read book Tectonic Setting of Faulted Tertiary Strata Associated with the Catalina Core Complex in Southern Arizona written by William R. Dickinson and published by Geological Society of America. This book was released on 1991 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mid-Tertiary strata exposed as tilted homoclines along the flanks of the San Pedro trough and across broad uplands north of the Catalina core complex are assigned to the following formations, each of which includes informal local members and facies: (a) Mineta Formation, mid-Oligocene redbeds including both conglomeratic fluvial and finer-grained lacustrine deposits; (b) Galiuro Volcanics, including lavas and domes, air-fall and ash-flow tuffs, and intercalated volcaniclastic strata of late Oligocene to earliest Miocene age; (c) Cloudburst Formation, also of late Oligocene and earliest Miocene age but including a sedimentary upper member of conglomeratic strata as well as a volcanic lower member correlative with part of the Galiuro Volcanics; and (d) San Manuel Formation, composed of lower Miocene alluvial fan and braidplain deposits that display contrasting clast assemblages in different areas of exposure. Generally correlative Oligocene-Miocene strata exposed south of the Catalina core complex are assigned to the Pantano Formation, which contains similar lithologic components. Less-deformed Neogene strata of post-mid-Miocene basin fill are assigned to the Quiburis Formation along the San Pedro trough, but stratigraphic equivalents elsewhere lack adequate nomenclature. High benchlands mantled by paleosols mark the highest levels of Neogene aggradation. Successive stages of subsequent erosional dissection are recorded by multiple terrace levels incised into basin fill. Key exposures of syntectonic mid-Tertiary sedimentary sequences in several local subareas reveal typical structural and stratigraphic relationships. Multiple fault blocks expose pre-Tertiary bedrock overlain by tilted mid-Tertiary strata confined to intervening half-grabens. Bounding syndepositional faults dip southwest and associated homoclines dip northeast. Fanning dips and buttress unconformities reflect progressive tilt and burial of eroding fault blocks. Dips of block-bounding faults are inversely proportional to the ages of the faults. Steeper dips for younger faults suggest either progressive erosion of successive listric faults or progressive rotation of successive planar faults. Uniformly moderate to steep dihedral angles between fault surfaces and offset homoclinal bedding imply that the faults dipped more steeply near the surface when syntectonic mid-Tertiary strata were subhorizontal. Although the inference of listric faulting best links apparent strands of the Catalina detachment system, the alternate interpretation of rotational normal faulting is compatible with local structural relationships including tilt of porphyry copper orebodies. Within the San Pedro trough, multiple homo clines of mid-Tertiary strata are exposed locally in tilt-blocks exhumed by Neogene erosion from beneath nearly flat-lying basin fill of the Quiburis Formation. Faults bounding the mid-Tertiary exposures include backtilted strands of the Catalina detachment system, somewhat younger listric or rotational normal faults, and steeper basin-range normal faults that display offsets both synthetic and antithetic to the flanks of the San Petro trough. In Cienega Gap, flanking the Tucson Basin, multiple tilt-blocks of the Pantano Formation form part of the upper plate of the Catalina detachment system. Initial construction of alluvial fans by generally westward paleoflow was followed by ponding of lacustrine environments along the foot of secondary breakaway scarps that also generated massive megabreccia deposits. In summary, syntectonic Oligocene to Miocene sedimentation succeeded a prominent pulse of polymodal mid-Tertiary volcanism and was coeval with mylonitic deformation and detachment faulting along the flank of the Catalina core complex. The headwall rupture for the detachment system migrated westward from an initial position along the range front of the Galiuro Mountains. After mid-Miocene time, accumulation and subsequent dissection of essentially undeformed basin fill was accompanied by basin-range block faulting. The most challenging structural issue is whether fault strands of the Catalina detachment system are interconnected or are disconnected rotational segments.

Download or read book Earth and Mind II written by Kim A. Kastens and published by Geological Society of America. This book was released on 2012 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Articles refer to teaching at various different levels from kindergarten to graduate school, with sections on teaching: geologic time, space, complex systems, and field-work. Each section includes an introduction, a thematic paper, and commentaries.

Download or read book Atlas of Meteorites written by Monica M. Grady and published by Cambridge University Press. This book was released on 2014-11-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete visual reference for meteorite classification, this atlas combines high resolution optical microscope images with detailed descriptions. It provides a systematic account of meteorites and their most important classification parameters, making it an essential resource for meteorite researchers. Each chapter starts with a description of the meteorite class, with a summary of the mineralogical, chemical and isotopic characteristics of the group. The full-color images are taken in plane- and cross-polarized light and reflected light, and arranged to highlight textural variations in meteorites. Specimens are grouped to show the effects of increasing thermal alteration and shock, as well as variations in chondrule size and type. Chapters on iron meteorites, pallasites and mesosiderites are included, photographed as mounts in reflected light, to show the range of textural variations that accompany these meteorites. Images from the book can be downloaded from www.cambridge.org/9780521840354.

Download or read book Dry Washing for Gold written by James Klein and published by . This book was released on 1994 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated edition with more on modern electronic prospecting and current equipment. Describes dry washing, a profitable means of extracting gold in regions where water sources are not available. Illustrated.