United States Geological Survey Professional Paper

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Professional Paper - United States Geological Survey

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Author by : Geological Survey (U.S.)
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : STANFORD:36105001393110
Release : 1902
Publisher by : no defined
Category : Geology
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Professional Paper - United States Geological Survey

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Author by : Geological Survey (U.S.)
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : STANFORD:36105001393110
Release : 1902
Publisher by : no defined
Category : Geology
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Professional paper - United States Geological Survey

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Author by : Geological Survey (U.S.)
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : STANFORD:36105001393466
Release : 1906
Publisher by : no defined
Category : Geology
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United States Geological Survey Professional Paper

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Author by : no defined
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : UOM:39015001631467
Release : 1903
Publisher by : no defined
Category : Geology
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Critical Mineral Resources of the United States Economic and Environmental Geology and Prospects for Future Supply

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Author by : K. J. Schulz
Languange Used : English, France, Spanish, Italia and chinese
Page : 797
Isbn : 9781411339910
Identifier : 1411339916
Release : 2018-07-27
Publisher by : Geological Survey
Category : Industrial minerals
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Description : Read Now Critical Mineral Resources Of The United States by K. J. Schulz and you can download with pub, pdf, txt, doc, and more file format with free account. as the importance and dependence of specific mineral commodities increase, so does concern about their supply. the united states is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. mineral commodities that have important uses and face potential supply disruption are critical to american economic and national security. however, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. the u.s. geological survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. for each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the united states and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. the volume describes u.s. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the united states will always rely on global mineral commodity supply chains. this volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the united states has a secure and sustainable supply of mineral commodities.

Brackish Groundwater in the United States

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Author by : Jennifer S. Stanton
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn : 9781411341265
Identifier : 1411341260
Release : 2017
Publisher by : no defined
Category : Aquifers
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USGS

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Author by : Geological Survey (U.S.)
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : MINN:31951T00157944J
Release : 1988
Publisher by : no defined
Category : Geology
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Geological Association of Canada Special Paper

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Author by : no defined
Languange Used : English, France, Spanish, Italia and chinese
Page : 233
Isbn :
Identifier : PSU:000010501955
Release : 1984
Publisher by : no defined
Category : Geology
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The Orphan Tsunami of 1700 Japanese Clues to a Parent Earthquake in North America

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Author by : Brian F. Atwater
Languange Used : English, France, Spanish, Italia and chinese
Page : 144
Isbn : 0295998512
Identifier : 9780295998510
Release : 2016-04-18
Publisher by : University of Washington Press
Category : Nature
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Description : Read Now The Orphan Tsunami Of 1700 by Brian F. Atwater and you can download with pub, pdf, txt, doc, and more file format with free account. a puzzling tsunami entered japanese history in january 1700. samurai, merchants, and villagers wrote of minor flooding and damage. some noted having felt no earthquake; they wondered what had set off the waves but had no way of knowing that the tsunami was spawned during an earthquake along the coast of northwestern north america. this orphan tsunami would not be linked to its parent earthquake until the mid-twentieth century, through an extraordinary series of discoveries in both north america and japan. the orphan tsunami of 1700, now in its second edition, tells this scientific detective story through its north american and japanese clues. the story underpins many of today�s precautions against earthquake and tsunami hazards in the cascadia region of northwestern north america. the japanese tsunami of march 2011 called attention to these hazards as a mirror image of the transpacific waves of january 1700. hear brian atwater on npr with renee montagne http://www.npr.org/templates/story/story.php?storyid=4629401

GAC Special Paper

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Author by : no defined
Languange Used : English, France, Spanish, Italia and chinese
Page : 315
Isbn : 9780919216235
Identifier : 0919216234
Release : 1984
Publisher by : no defined
Category : Geology
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The Geologic History of the Moon

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Author by : U S Department of the Interior
Languange Used : English, France, Spanish, Italia and chinese
Page : 336
Isbn : 9781495919855
Identifier : 1495919854
Release : 2014-02-12
Publisher by : CreateSpace
Category : Science
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Description : Read Now The Geologic History Of The Moon by U S Department of the Interior and you can download with pub, pdf, txt, doc, and more file format with free account. the moon held little interest for most scientists after its basic astronomic properties had been determined and before direct exploration appeared likely. speculations about its internal structure, composition, and origin were only broadly constrained by cosmochemical data from meteorites and solar spectra, and by astronomic data about its size, shape, motions, and surficial properties. most investigators who were active before the space age began in 1957 believed that significant new advances in lunar knowledge required acquisition of additional data. one analytical technique, however, was insufficiently exploited before the 1960's. few scientists since the geologist gilbert had studied the lunar surface systematically from the historical point of view. those who did immediately obtained important new insights about the moon's postaccretion evolution. then, the pioneering work of e.m. shoemaker and r.j. hackman focused the powerful methods of stratigraphy on lunar problems. stratigraphy is the study of the spatial distribution, chronologic relations, and formative processes of layered rocks. its application to the moon came relatively late and met resistance, but the fundamental stratigraphic approach was, in fact, readily transferable to the partly familiar, partly exotic deposits visible on the lunar surface. stratigraphic methods were applied systematically during the 1960's in a program of geologic mapping that aimed at reconstructing the evolution of the moon's nearside. order was discovered among the seemingly diverse and random landforms of the lunar surface by determining the sequence in which they were emplaced. the stratigraphic sequence and the emplacement processes deduced therefrom provided a framework for exploration by the apollo program and for the task of analyzing the returned samples. during the 19703, the sophisticated labor of hundreds of analysts was brought to bear on the wealth of material returned by the american apollo and the soviet luna spacecraft. our present perception of the moon has emerged from the interplay between sampling studies and stratigraphically based photogeology. these two approaches are complementary: photogeology contributes a historical context by viewing the whole moon from a distant vantage point, whereas the samples contain information on rock types and absolute ages unobtainable by remote methods. neither approach by itself, even the most elaborate program of direct surface exploration, could have yielded the current advanced state of knowledge within the relatively short time of two decades. this volume presents a model for the geologic evolution of the moon that has emerged mainly from this integration of photogeologic stratigraphy and sample analysis. other aspects of the vast field of lunar science are discussed here only insofar as they pertain to the evolution of visible surface features. chemical data obtained by remote sensing supplement the photogeologic interpretations of some geologic units, and geophysical data obtained both from lunar orbit and on the surface constrain hypotheses of the origin of many internally generated structures and deposits. studies of the same data that treat the moon as a whole, including speculations about the intriguing but unsolved problem of its origin, have been adequately covered in other reviews. this volume is written primarily for geoscientists and other planetologists who have examined some aspect of lunar or planetary science and who want a review of lunar science from the viewpoint of historical geology. it should also provide a useful summary for the advanced student who is conversant with common geologic terms. it may, furthermore, interest the geologist who has not studied the moon but who wishes to see how his methodology has been applied to another planet.

A Study of Global Sand Seas

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Author by : Edwin D. McKee
Languange Used : English, France, Spanish, Italia and chinese
Page : 440
Isbn : 9781410214577
Identifier : 1410214575
Release : 2004-06-01
Publisher by : no defined
Category : Science
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Description : Read Now A Study Of Global Sand Seas by Edwin D. McKee and you can download with pub, pdf, txt, doc, and more file format with free account. early descriptions and considerations of the characteristics of modern eolian sand deposits, mostly in the great sand seas of the world, date back to the 1880's and 1890's, when pioneer geologists and explorers wrote their classic papers on desert dunes. one or two decades later, interest in eolian processes greatly increased when wind-formed deposits were recognized in ancient sandstones in many parts of the world and in rocks of many ages. throughout the 20th century, as the science of geology has expanded and the programs of the u.s. geological survey have proliferated to keep pace, dune studies have had a similar growth. work was initially concentrated mostly on the description of dune forms or morphology and on analysis of textural features; by midcentury, however, major contributions had been made to the physics of eolian sand by detailed studies and interpretations of minor eolian structures, by statistical analyses of cross-strata dip directions, and by the development of systems for dune classification. most recently, interest has been renewed in detailed grain studies, in the study of cross-strata, and in interpretation of dune patterns by means of aerial photographs and landsat imagery. a major feature of this report on global sand seas is the compilation and comparison of available data based on many different methods of investigation. the application of these studies to economic problems, which is described in one chapter, clearly illustrates the importance of eolian deposits to our present culture and to human welfare. h. william menarddirector, u.s. geological survey