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3 edition of Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States found in the catalog.

Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States

United States Geological Survey

Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States

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Published by USGS Information Services .
Written in English


Edition Notes

SeriesU.S. Geological Survey digital data series
The Physical Object
FormatUnknown Binding
ID Numbers
Open LibraryOL10947524M
ISBN 100607920742
ISBN 109780607920741


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Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States by United States Geological Survey Download PDF EPUB FB2

Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States: Series title: Data Series: Series number: ISBN: DOI: ds Edition: Release 2: Year Published: Language: ENGLISH: Publisher: USGS Information Services, Description: 3 computer laser optical discs:col. ;4 34 in.in plastic box 13 x 15 x 3 cm.

1 manual. Profiles of gamma-ray and magnetic data for aerial surveys over parts of the Western United States from longitude to degrees W.

and from latitude 34 to 49 degrees N. Series title: Data Series: Series number: ISBN: DOI: ds31rel1: Edition: Release 1: Year Published: Language: ENGLISH: Publisher.

Profiles of gamma-ray and magnetic data from aerial surveys over the conterminous United States [electronic resource] U. Department of the Interior, U. Geological Survey ; by Joseph S. Duval and Frederic E. Riggle. United States. Department of Energy. Grand Junction Office.

Aerial Gamma Ray and Magnetic Survey, Raton Basin Project, Flagstaff Quadrangle of Arizona: Final Report, Volume 2, report, ; Washington D.

Aerial Gamma-ray Data. The gamma-ray data collected as part of the aerial survey were processed by the contractor to produce estimates of the concentrations of potassium, uranium, and thorium in the upper 30 cm of the rocks and soils (Duval, Cook, and Adams, ).

The potassium concentrations are based upon the measurement of gamma-rays emitted by the radioactive isotope potassium (K 40) and. From introduction: This report details the airborne spectrometer survey performed in covering the Grand Canyon quadrangle located in north-western Arizona.

The survey consisted of 23 traverse lines and 10 tie lines totaling 3, line miles. Duval, J.in press, Profiles of gamma-ray and magnetic data for aerial surveys over parts of the western United States from to degrees west longitude and 34 to 49 degrees north latitude: U. Geological Survey Digital Data Series DDS.

Aerial gamma-ray surveying reflects the geochemical variations of potassium, uranium and thorium in the upper 30 cm of the Earth's surface. This thin layer is subject to the effects of weathering. CHAPTER 10 AVAILABILITY OF GEOSPATIAL DATA THROUGH LIBRARIES IN THE UNITED STATES MARY LYNETTE LARSGAARD Map and Imagery Laboratory, Davidson Library University of California Santa Barbara, California USA Introduction So-called "map" libraries actually hold many other media, all the way from air photographs to globes to gazetteers, and indeed encompass any sort of geospatial data.

Book Chapter: Title: Application of aerial gamma-ray spectrometric and magnetic surveys in geologic mapping: a case study in southern Virginia and northern North Carolina: Year Published: Language: English: Publisher: Carolina Geological Society: Contributing office(s) Eastern Geology and Paleoclimate Science Center: Description: 8 p.

Larger Work Type: Book. Gamma rays are the most penetrating radiation from natural and man-made sources, and gamma ray spectrometry is a powerful tool for the monitoring and assessment of the radiation environment.

Gamma ray surveys are carried out from aircraft, field vehicles, on foot, in boreholes, on the sea bottom and in laboratories. Ground and airborne gamma ray. SURVEY EXAMPLES Case 1: Magnetic and Gamma Ray Spectrometry (MAG-GRS) Survey - Mineral Exploration This exploration survey was flown in over an area with investigation permits that are granted to Lundin Mining Corporation.

The survey comprises a total of 2, line km. Da ta was acquired along survey lines with nominal spacing of. X-Ray Attenuation and Absorption for materials of Dosimetric Interest.

Hubbell and S. Seltzer Tables and graphs of computed photon mass attenuation coefficients and mass energy-absorption coefficients from 1 keV to 20 MeV are presented for all of the elements (Z 1 to 92) and for 48 compounds and mixtures of radiological interest.

Aerial gamma-ray survey An aerial gamma-ray survey was conducted over the area in using a litre Nal detector with an average m flight line spacing and m ground clearance.

The survey data were corrected by the geophysical contractor for. gamma ray survey data to produce maps of the natural radiation environment. The manual is the work of three consultants; Dr. Duval of the United States Geological Survey, Dr. Anders Linden of the Swedish Geological Company, and Dr.

Milan Matolin of Charles University in. Gamma ray surveys are used in several fields of science. They are used for geological, geochemical, and environmental mapping, and allow the interpretation of regional features over large areas.

Gamma ray surveys are used in soil mapping and for mineral exploration. gamma ray detectors attached NSTec Aerial Gamma Ray Survey(5) Satellite Image Figure 3: On the left is an aerial gamma ray survey of our area in north central Arizona known as the Navajo Mines area, on the right is a satelite image of the same area.

The yellow arrow indicates the similarity between the blue shape in the aerial gamma ray. Aerial gamma-ray data covering the 48 contiguous states of the United States have been compiled to produce maps showing the distributions of equivalent uranium, equivalent thorium, and potassium.

adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A. The Publications warehouse contains overpublications that cover the year history of the USGS. Inthe U. Geological Survey initiated a low-density (1 site per 1, square kilometers, 4, sites) geochemical and mineralogical survey of soils of the conterminous United States as.

Aerial gamma surveys are carried out using both fixed-wing and helicopter aircraft depending on the size of the survey area, the required degree of detail, and the survey costs. Figures 1 and 2 show. Proximal gamma surveys of soil were used to validate aerial gamma patterns in the United States.

Proximal gamma relationships with clay and calcium carbonate were strong and site-specific. Aerial gamma predictions of clay content often depended on accurately geo-positioned aerial data.

article{osti_, title {Airborne gamma-ray spectrometer and magnetometer survey: Weed quadrangle, California. Final report}, author {}, abstractNote {Volume II contains the flight path, radiometric multi-parameter stacked profiles, magnetic and ancillary parameter stacked profiles, histograms, and anomaly maps for the Weed Quadrangle in California.

}, doi {}, url. Summary. This data release includes estimates of potassium (K), equivalent uranium (eU), and equivalent thorium (eTh) for the conterminous United States derived from the U. Geological Survey's national airborne radiometric data compilation (Duval and others, ).

Airborne gamma ray spectrometry (AGRS) measures the gamma-rays that are emitted from naturally. Map of K distribution for the conterminous USA based on a low-density (1 sample per km 2) soil geochemical survey reported by Shacklette Boerngen () and mapped by Gustavsson et al.

Pair production is a gamma-ray that turns into an electron-positron pair. This occurs when the gamma-ray is in the intense electric eld near the nuclei of the absorbing material.

There is a minimum amount of gamma-ray energy that is required for this process to take place. This minimum energy is the mass of the electron-positron pair, 2m 0c2. Publication_Information: Publication_Place: Denver, CO. Publisher: U. Geological Survey. Description: Abstract: Aeromagnetic and aeroradiometric data were collected along flight lines by instruments in an aircraft that recorded magnetic-field and radiometric values and locations.

The magnetic data set presents latitude, longitude, altitude, and magnetic-field values. Radioactivity surveys have been used since the late 's in the exploration for uranium and uranium- bearing rocks.

From the early 's the airborne technique has progressed from the simple geiger counter and similar type instruments used in "anom- aly hunting" to the highly sophisticated gamma-ray.

Because uranium, thorium, and potassium concentration data are useful in geologic studies and because the NURE data are the only nationwide database on the natural radiation environment, the U.

Geological Survey reprocessed the aerial gamma-ray data to produce maps showing surface concentrations of potassium, uranium, and thorium for the conterminous United States.

Digital Data Series DDS-9 (CD-ROM) contains gridded radiometric geophysical data. Aeromagnetic and aeroradiometric data for the ConterminousUnited States and Alaska from the National Uranium ResourceEvaluation (NURE) Program of U. Department of Energy.

Geological Survey Open-File ReportOFR Denver, COU. Geological SurveyAeromagnetic and aeroradiometric data were collected along flight lines byinstruments in an aircraft that recorded magnetic-field and. Recon Exploration Pty. Ltd. has successfully completed initial testing of a new method for processing and interpretation of AGSO's (Australian Geological Survey Organization, formerly Bureau of Mineral Resources) aerial gamma-ray spectrometer data for petroleum exploration in the Canning Basin, Western Australia and the Otway Basin, Victoria.

aeromagnetic andor aeroradiometric data have been compiled for each state. These state indexes have been grouped together to form six open-file reports: four for the conterminous United States (see index map below), one for Alaska and Hawaii, and one for Puerto Rico and large areas of the United States.

The element data and the ratios of the element data are used to help map surficial geology and to detect concentrations of radioactive minerals. The U. Department of Energy through Bendix Corp. contracted numerous airborne surveys over a period from to covering most of the conterminous United States and much of Alaska.

development of gamma ray spectrometric techniques. A brief review of the planning and stages of a uranium exploration program using gamma ray spectrometry, and disposition of costs is given as a background to the more technical considerations.

To obtain the fUllest advantage of the use of a gamma ray spectrometer for uranium exploration. Aerial radioactivity data used in this report are from the equivalent uranium map of the conterminous United States compiled from NURE aerial gamma-ray surveys (Duval and others, ).

These, data indicate the gamma radioactivity from approximately the upper 30 cm of rock and soil, expressed in units of ppm equivalent uranium. Airborne Mobile Gamma-Ray Spectrometry Pico provides spectrometer systems that can be installed on Helicopter or fixed-wing platform.

Depending on the survey requirements andor budget, the spectrometers can be used as a stand-alone unit or it can be combined with Data Acquisition system and other ancillaries to make it a complete survey system. Aerial radioactivity data used in this report are from the equivalent uranium map of the conterminous United States compiled from NURE aerial gamma-ray surveys (Duval and others, ).

These data indicate-the gamma radioactivity from approximately the upper 30 cm of rock and soil, expressed in units of ppm equivalent uranium. Aerial radioactivity data used in this report are from the equivalent uranium map of the conterminous United States compiled from NURE aerial gamma-ray surveys (Duval and others, ).

These data indicate the gamma radioactivity from approximately the upper 30 cm of rock and soil, expressed in units of ppm equivalent uranium.

A gamma ray, also known as gamma radiation (symbol γ or), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy.

Paul Villard, a French chemist and physicist, discovered gamma radiation in while studying radiation emitted by radium. Gamma-ray astronomy is the astronomical observation of gamma rays, the most energetic form of electromagnetic radiation, with photon energies above ion below keV is classified as X-rays and is the subject of X-ray astronomy.

In most known cases, gamma rays from solar flares and Earth's atmosphere are generated in the MeV range, but it is now known that gamma rays in the GeV.Aerial radioactivity data used in this report are from the equivalent uranium map of the conterminous United States compiled from NUKE aerial gamma-ray surveys (Duyal and others, ).

These data indicate the gamma radioactivity from approximately the upper 30 cm of rock and soil, expressed in. units of ppm equivalent uranium.