Michael Diggles
Michael Diggles is a Bureau Approving Official in the Office of Science Quality and Integrity.
Science and Products
Mineral resource potential map of the South Sierra Wilderness and the South Sierra Roadless Area, Inyo and Tulare Counties, California
There are five areas with mineral resource potential and one area with geothermal energy potential in the South Sierra Wilderness and the South Sierra Roadless Area. The area south of Summit Meadows and the area south of Hogback Creek have moderate resource potential for tungsten and molybdenum in small skarn deposits. The area between Summit meadow and Hogback Creek and the area from south of Jac
Map and interpretation of geochemical anomalies in the White Mountains, Blanco Mountain, Birch Creek, and Black Canyon Roadless Areas, White Mountains, California and Nevada
The geochemical results show the most anomalous part of the study area to be the White Mountain Fault zone along the northwestern range front. Silver, lead, and zinc mineralization in calcareous rocks, porphyry copper in dikes, gold-arsenic quartz vein deposits, tungsten and molybdenum tactite mineralization, and argillic alteration zones are indicated. Titanium and molybdenum were detected in J
Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California
On the basis of geologic, geochemical, and geophysical investigations and a survey of mines and prospects, the mineral resource potential for gold, silver, lead, zinc, tungsten, and barite of the Blanco Mountain and Black Canyon Roadless Areas is judged to be low to moderate, except for one local area that has high potential for gold and tungsten resources.
A geochemical survey detected moderately
Maps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California
A geochemical survey of the John Muir Wilderness was conducted by the U.S. Geological Survey between 1969 and 1978. The 755-mi2 (1,956-km2) wilderness is located in the central Sierra Nevada, Calif. (fig. 1). Stream-sediment samples were collected at 1,434 sites in the wilderness and immediately adjacent areas. Analytical data for these samples and a map of smapling sites are presented by du Bra
Filter Total Items: 24
The saltiest springs in the Sierra Nevada, California
The five saltiest springs in the Sierra Nevada in California are found between 38.5° and 38.8° N. latitude, on the South Fork American River; on Caples Creek, a tributary of the Silver Fork American River; and on the North Fork Mokelumne River. The springs issue from Cretaceous granitic rocks in the bottoms of these major canyons, between 1,200- and 2,200-m elevation. All of these springs were wel
Authors
James G. Moore, Michael F. Diggles, William C. Evans, Karin Klemic
Hand-Hewn Granite Basins at Native American Saltworks, Sierra Nevada, California
This site in the northern Sierra Nevada contains about 369 circular basins carved in fresh, glaciated granodioritic bedrock, with 325 basins crowded together in an area of 2,700 m2 on the main terrace. These terrace basins have a median average diameter of 125 cm (80 percent between 100 and 160 cm) and a median depth of 75-80 cm. They show a strong congruity to similar granitic basins in the south
Authors
James G. Moore, Michael F. Diggles
Geographic information systems (GIS) spatial data compilation of geodynamic, tectonic, metallogenic, mineral deposit, and geophysical maps and associated descriptive data for northeast Asia
This is the online version of a CD-ROM publication. It contains all of the data that are on the disc but extra files have been removed: index files, software installers, and Windows autolaunch files.
The purpose of this publication is to provide a high-quality spatial data compilation (Geographical Information System or GIS) of geodynamic, mineral deposit, and metallogenic belt maps, and descri
Authors
Vera V. Naumova, Mikhail I. Patuk, Marina Yu. Kapitanchuk, Warren J. Nokleberg, Alexander I. Khanchuk, Leonid M. Parfenov, Sergey M. Rodionov, Robert J. Miller, Michael F. Diggles
Digital files for northeast Asia geodynamics, mineral deposit location, and metallogenic belt maps, stratigraphic columns, descriptions of map units, and descriptions of metallogenic belts
This is the online version of a CD-ROM publication. It contains all of the data that are on the disc but extra files have been removed: index files, software installers, and Windows autolaunch files.
This publication contains a a series of files for Northeast Asia geodynamics, mineral deposit location, and metallogenic belt maps descriptions of map units and metallogenic belts, and stratigraph
Authors
Warren J. Nokleberg, Gombosuren Badarch, Nikolai A. Berzin, Michael F. Diggles, Duk-Hwan Hwang, Alexander I. Khanchuk, Robert J. Miller, Vera V. Naumova, Alexander A. Obolensky, Masatsugu Ogasawara, Leonid M. Parfenov, Andrei V. Prokopiev, Sergey M. Rodionov, Hongquan Yan
Selected Images of the Pu'u 'O'o-Kupaianaha Eruption, 1983-1997
The 100 images in this CD?ROM have been selected from the collections of the Hawaiian Volcano Observatory as enduring favorites of the staff, researchers, media, designers, and the public over time. They represent photographs of a variety of geological phenomena and eruptive events, chosen for their content, quality of exposure, and aesthetic appeal. The number was kept to 100 to maintain the high
Authors
Taeko Jane Takahashi, Christina C. Heliker, Michael F. Diggles
Preliminary publications book 2 from project on mineral resources, metallogenesis, and tectonics of northeast Asia
This is the Web version of a CD-ROM publication. This report consists of summary major compilations and syntheses accomplished in the six-year project through April 2003 for the study on the Mineral Resources, Metallogenesis, and Tectonics of Northeast Asia (Eastern and Southern Siberia, Mongolia, Northeastern China, South Korea, and Japan). The major scientific goals and benefits of the project a
Authors
Warren J. Nokleberg, Robert J. Miller, Vera V. Naumova, Alexander I. Khanchuk, Leonid M. Parfenov, Mikhail I. Kuzmin, Tatiana M. Bounaeva, Alexander A. Obolenskiy, Sergey M. Rodionov, Zhan V. Seminskiy, Michael F. Diggles
Sediment-hosted copper deposits of the world: Deposit models and database
Introduction
This publication contains four descriptive models and four grade-tonnage models for sediment hosted copper deposits. Descriptive models are useful in exploration planning and resource assessment because they enable the user to identify deposits in the field and to identify areas on geologic and geophysical maps where deposits could occur. Grade and tonnage models are used in resour
Authors
Dennis P. Cox, David A. Lindsey, Donald A. Singer, Barry C. Moring, Michael F. Diggles
Volcanoes of the Wrangell Mountains and Cook Inlet region, Alaska: selected photographs
Alaska is home to more than 40 active volcanoes, many of which have erupted violently and repeatedly in the last 200 years. This CD-ROM contains 97 digitized color 35-mm images which represent a small fraction of thousands of photographs taken by Alaska Volcano Observatory scientists, other researchers, and private citizens. The photographs were selected to portray Alaska's volcanoes, to document
Authors
Christina A. Neal, Robert G. McGimsey, Michael F. Diggles
Preliminary publications Book 1 from Project on Mineral Resources, Metallogenesis and Tectonics of Northeast Asia
This report consists of preliminary data tables, maps, and interpretative articles compiled in late 1997 and early 1998 for a new project on the Mineral Resources, Metallogenesis, and Tectonics of Northeast Asia (Eastern and Southern Siberia, Mongolia, North-eastern China, South Korea, and Japan).
Authors
Sodov Ariunbileg, Gombosuren Badarch, Nikolai A. Berzin, Alexander N. Bulgatov, Noosoi Chimed, Aleksey V. Deikunenko, Gunchin Dejidmaa, Michael F. Diggles, Elimir G. Distanov, Dangindorjiin Dorjgotov, Ochir Gerel, Ivan V. Gordienko, Ayurzana Gotovsuren, Duk-Hwan Hwang, Alexander I. Khanchuk, Richard D. Koch, Robert J. Miller, Warren J. Nokleberg, Alexander A. Obolenskiy, Masatsugu Ogasawara, Demberel Orolmaa, Vladimir S. Oxman, Leonid M. Parfenov, Ludmila I. Popeko, Andrey V. Prokopiev, Alexander P. Smelov, Vitaliy I. Sotnikov, Sadahisa Sudo, Vladimir F. Timofeev, Felix F. Tret'yakov, Valery A. Vernikovsky, Mao Ye, Alexander P. Zadgenizov
Teaching earth science
This CD-ROM contains 17 teaching tools: 16 interactive HyperCard 'stacks' and a printable model. They are separated into the following categories: Geologic Processes, Earthquakes and Faulting, and Map Projections and Globes. A 'navigation' stack, Earth Science, is provided as a 'launching' place from which to access all of the other stacks. You can also open the HyperCard Stacks folder and launch
Summary terrane, mineral deposit, and metallogenic belt maps of the Russian Far East, Alaska, and the Canadian Cordillera
This report is part of a project on the major mineral deposits, metallogenesis, and tectonics of the Russian Far East, Alaska, and the Canadian Cordillera. The project is to provide critical information for collaborators and customers on bedrock geology and geophysics, tectonics, major metalliferous mineral resources, metallogenic patterns, and crustal origin and evolution of mineralizing systems
Authors
Warren J. Nokleberg, Timothy D. West, Kenneth M. Dawson, Vladimir I. Shpikerman, Thomas K. Bundtzen, Leonid M. Parfenov, James W. Monger, Vladimir V. Ratkin, Boris V. Baranov, Stanislauv G. Byalobzhesky, Michael F. Diggles, Roman A. Eremin, Kazuya Fujita, Steven P. Gordey, Mary E. Gorodinskiy, Nikolai A. Goryachev, Tracey D. Feeney, Yuri F. Frolov, Arthur Grantz, Alexander I. Khanchuk, Richard D. Koch, Boris A. Natal'in, Lev M. Natapov, Ian O. Norton, William W. Patton, George Plafker, Anany I. Pozdeev, Ilya S. Rozenblum, David W. Scholl, Sergei D. Sokolov, Gleb M. Sosunov, David B. Stone, Rowland W. Tabor, Nickolai V. Tsukanov, Tracy L. Vallier
Science and Products
- Maps
Mineral resource potential map of the South Sierra Wilderness and the South Sierra Roadless Area, Inyo and Tulare Counties, California
There are five areas with mineral resource potential and one area with geothermal energy potential in the South Sierra Wilderness and the South Sierra Roadless Area. The area south of Summit Meadows and the area south of Hogback Creek have moderate resource potential for tungsten and molybdenum in small skarn deposits. The area between Summit meadow and Hogback Creek and the area from south of JacMap and interpretation of geochemical anomalies in the White Mountains, Blanco Mountain, Birch Creek, and Black Canyon Roadless Areas, White Mountains, California and Nevada
The geochemical results show the most anomalous part of the study area to be the White Mountain Fault zone along the northwestern range front. Silver, lead, and zinc mineralization in calcareous rocks, porphyry copper in dikes, gold-arsenic quartz vein deposits, tungsten and molybdenum tactite mineralization, and argillic alteration zones are indicated. Titanium and molybdenum were detected in JMineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California
On the basis of geologic, geochemical, and geophysical investigations and a survey of mines and prospects, the mineral resource potential for gold, silver, lead, zinc, tungsten, and barite of the Blanco Mountain and Black Canyon Roadless Areas is judged to be low to moderate, except for one local area that has high potential for gold and tungsten resources. A geochemical survey detected moderatelyMaps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California
A geochemical survey of the John Muir Wilderness was conducted by the U.S. Geological Survey between 1969 and 1978. The 755-mi2 (1,956-km2) wilderness is located in the central Sierra Nevada, Calif. (fig. 1). Stream-sediment samples were collected at 1,434 sites in the wilderness and immediately adjacent areas. Analytical data for these samples and a map of smapling sites are presented by du Bra - Publications
Filter Total Items: 24
The saltiest springs in the Sierra Nevada, California
The five saltiest springs in the Sierra Nevada in California are found between 38.5° and 38.8° N. latitude, on the South Fork American River; on Caples Creek, a tributary of the Silver Fork American River; and on the North Fork Mokelumne River. The springs issue from Cretaceous granitic rocks in the bottoms of these major canyons, between 1,200- and 2,200-m elevation. All of these springs were welAuthorsJames G. Moore, Michael F. Diggles, William C. Evans, Karin KlemicHand-Hewn Granite Basins at Native American Saltworks, Sierra Nevada, California
This site in the northern Sierra Nevada contains about 369 circular basins carved in fresh, glaciated granodioritic bedrock, with 325 basins crowded together in an area of 2,700 m2 on the main terrace. These terrace basins have a median average diameter of 125 cm (80 percent between 100 and 160 cm) and a median depth of 75-80 cm. They show a strong congruity to similar granitic basins in the southAuthorsJames G. Moore, Michael F. DigglesGeographic information systems (GIS) spatial data compilation of geodynamic, tectonic, metallogenic, mineral deposit, and geophysical maps and associated descriptive data for northeast Asia
This is the online version of a CD-ROM publication. It contains all of the data that are on the disc but extra files have been removed: index files, software installers, and Windows autolaunch files. The purpose of this publication is to provide a high-quality spatial data compilation (Geographical Information System or GIS) of geodynamic, mineral deposit, and metallogenic belt maps, and descriAuthorsVera V. Naumova, Mikhail I. Patuk, Marina Yu. Kapitanchuk, Warren J. Nokleberg, Alexander I. Khanchuk, Leonid M. Parfenov, Sergey M. Rodionov, Robert J. Miller, Michael F. DigglesDigital files for northeast Asia geodynamics, mineral deposit location, and metallogenic belt maps, stratigraphic columns, descriptions of map units, and descriptions of metallogenic belts
This is the online version of a CD-ROM publication. It contains all of the data that are on the disc but extra files have been removed: index files, software installers, and Windows autolaunch files. This publication contains a a series of files for Northeast Asia geodynamics, mineral deposit location, and metallogenic belt maps descriptions of map units and metallogenic belts, and stratigraphAuthorsWarren J. Nokleberg, Gombosuren Badarch, Nikolai A. Berzin, Michael F. Diggles, Duk-Hwan Hwang, Alexander I. Khanchuk, Robert J. Miller, Vera V. Naumova, Alexander A. Obolensky, Masatsugu Ogasawara, Leonid M. Parfenov, Andrei V. Prokopiev, Sergey M. Rodionov, Hongquan YanSelected Images of the Pu'u 'O'o-Kupaianaha Eruption, 1983-1997
The 100 images in this CD?ROM have been selected from the collections of the Hawaiian Volcano Observatory as enduring favorites of the staff, researchers, media, designers, and the public over time. They represent photographs of a variety of geological phenomena and eruptive events, chosen for their content, quality of exposure, and aesthetic appeal. The number was kept to 100 to maintain the highAuthorsTaeko Jane Takahashi, Christina C. Heliker, Michael F. DigglesPreliminary publications book 2 from project on mineral resources, metallogenesis, and tectonics of northeast Asia
This is the Web version of a CD-ROM publication. This report consists of summary major compilations and syntheses accomplished in the six-year project through April 2003 for the study on the Mineral Resources, Metallogenesis, and Tectonics of Northeast Asia (Eastern and Southern Siberia, Mongolia, Northeastern China, South Korea, and Japan). The major scientific goals and benefits of the project aAuthorsWarren J. Nokleberg, Robert J. Miller, Vera V. Naumova, Alexander I. Khanchuk, Leonid M. Parfenov, Mikhail I. Kuzmin, Tatiana M. Bounaeva, Alexander A. Obolenskiy, Sergey M. Rodionov, Zhan V. Seminskiy, Michael F. DigglesSediment-hosted copper deposits of the world: Deposit models and database
Introduction This publication contains four descriptive models and four grade-tonnage models for sediment hosted copper deposits. Descriptive models are useful in exploration planning and resource assessment because they enable the user to identify deposits in the field and to identify areas on geologic and geophysical maps where deposits could occur. Grade and tonnage models are used in resourAuthorsDennis P. Cox, David A. Lindsey, Donald A. Singer, Barry C. Moring, Michael F. DigglesVolcanoes of the Wrangell Mountains and Cook Inlet region, Alaska: selected photographs
Alaska is home to more than 40 active volcanoes, many of which have erupted violently and repeatedly in the last 200 years. This CD-ROM contains 97 digitized color 35-mm images which represent a small fraction of thousands of photographs taken by Alaska Volcano Observatory scientists, other researchers, and private citizens. The photographs were selected to portray Alaska's volcanoes, to documentAuthorsChristina A. Neal, Robert G. McGimsey, Michael F. DigglesPreliminary publications Book 1 from Project on Mineral Resources, Metallogenesis and Tectonics of Northeast Asia
This report consists of preliminary data tables, maps, and interpretative articles compiled in late 1997 and early 1998 for a new project on the Mineral Resources, Metallogenesis, and Tectonics of Northeast Asia (Eastern and Southern Siberia, Mongolia, North-eastern China, South Korea, and Japan).AuthorsSodov Ariunbileg, Gombosuren Badarch, Nikolai A. Berzin, Alexander N. Bulgatov, Noosoi Chimed, Aleksey V. Deikunenko, Gunchin Dejidmaa, Michael F. Diggles, Elimir G. Distanov, Dangindorjiin Dorjgotov, Ochir Gerel, Ivan V. Gordienko, Ayurzana Gotovsuren, Duk-Hwan Hwang, Alexander I. Khanchuk, Richard D. Koch, Robert J. Miller, Warren J. Nokleberg, Alexander A. Obolenskiy, Masatsugu Ogasawara, Demberel Orolmaa, Vladimir S. Oxman, Leonid M. Parfenov, Ludmila I. Popeko, Andrey V. Prokopiev, Alexander P. Smelov, Vitaliy I. Sotnikov, Sadahisa Sudo, Vladimir F. Timofeev, Felix F. Tret'yakov, Valery A. Vernikovsky, Mao Ye, Alexander P. ZadgenizovTeaching earth science
This CD-ROM contains 17 teaching tools: 16 interactive HyperCard 'stacks' and a printable model. They are separated into the following categories: Geologic Processes, Earthquakes and Faulting, and Map Projections and Globes. A 'navigation' stack, Earth Science, is provided as a 'launching' place from which to access all of the other stacks. You can also open the HyperCard Stacks folder and launchSummary terrane, mineral deposit, and metallogenic belt maps of the Russian Far East, Alaska, and the Canadian Cordillera
This report is part of a project on the major mineral deposits, metallogenesis, and tectonics of the Russian Far East, Alaska, and the Canadian Cordillera. The project is to provide critical information for collaborators and customers on bedrock geology and geophysics, tectonics, major metalliferous mineral resources, metallogenic patterns, and crustal origin and evolution of mineralizing systemsAuthorsWarren J. Nokleberg, Timothy D. West, Kenneth M. Dawson, Vladimir I. Shpikerman, Thomas K. Bundtzen, Leonid M. Parfenov, James W. Monger, Vladimir V. Ratkin, Boris V. Baranov, Stanislauv G. Byalobzhesky, Michael F. Diggles, Roman A. Eremin, Kazuya Fujita, Steven P. Gordey, Mary E. Gorodinskiy, Nikolai A. Goryachev, Tracey D. Feeney, Yuri F. Frolov, Arthur Grantz, Alexander I. Khanchuk, Richard D. Koch, Boris A. Natal'in, Lev M. Natapov, Ian O. Norton, William W. Patton, George Plafker, Anany I. Pozdeev, Ilya S. Rozenblum, David W. Scholl, Sergei D. Sokolov, Gleb M. Sosunov, David B. Stone, Rowland W. Tabor, Nickolai V. Tsukanov, Tracy L. Vallier - Multimedia
No results found.