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Geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) Mineral Resources Section conducted four weeks of helicopter-supported mapping and fieldwork from June 26 through July 24, 2013. The Styx River project in the Lime Hills C-1 Quadrangle was part of the State-funded Airborne Geophysical/Geological Mineral Inventory (AGGMI) program as part of the State's Strategic Minerals Assessment Project, an initiative designed to evaluate Alaska's potential for rare-earth elements, PGEs, and other similarly supply-challenged resources. The Styx River project area has active and ongoing mineral exploration for deposit types including porphyry copper/molybdenum/gold, reduced intrusion-related gold, and...
Tags: Alaska Range,
Aluminum,
Antimony,
Arsenic,
Barium, All tags...
Basalt,
Base Metals,
Bedrock,
Beryllium,
Bismuth,
Cadmium,
Calcium,
Cerium,
Cesium,
Chalcopyrite,
Chlorite,
Chromium,
Cobalt,
Copper,
Critical Minerals,
Dysprosium,
Economic Geology,
Erbium,
Europium,
Exploration,
Felsic,
Fluorine,
Gadolinium,
Galena,
Gallium,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geology,
Germanium,
Gold,
Granite,
Greisen,
Hafnium,
Heavy Metals,
Holmium,
Hornfels,
Igneous Rocks,
Iron,
Lime Hills Quadrangle,
Lode,
Lutetium,
Magnesium,
Major Oxides,
Manganese,
McGrath Quadrangle,
Metals,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Resources,
Minor Oxides,
Molybdenum,
Neodymium,
Nickel,
Niobium,
Non-Metals,
Palladium,
Phosphorus,
Platinum,
Platinum Group Elements,
Plutons,
Potassium,
Precious Metals,
Promethium,
Rubidium,
Selenium,
Silica,
Silver,
Sodium,
Sphalerite,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Strontium,
Sulfides,
Sulfur,
Talkeetna Quadrangle,
Tantalum,
Thallium,
Thorium,
Tin,
Titanium,
Tourmaline,
Trace Elements,
Trace Metals,
Tungsten,
Tyonek Quadrangle,
Uranium,
Vanadium,
Volcanic,
Zinc,
Zirconium,
geoscientificInformation, Fewer tags
The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska's statewide potential for strategic and critical mineral resources. The SCM Assessment project is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For the geochemical part of the SCM Assessment project, thousands of geochemical-sample analyses and locations from historical U.S. Bureau of Mines (USBM), U.S. Geological Survey (USGS), Bureau of Land Management (BLM), DGGS, Alaska Territorial Department of Mines, Alaska Division of Mines and...
Tags: Alaska Statewide Quadrangle,
Alaska, State of,
Analyses,
Analyses and Sampling,
Analytical Lab Results, All tags...
Analytical Results,
Base Metals,
Chemistry,
Critical Minerals,
Economic Geology,
Economic Study,
Exploration,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geologic,
Geology,
Lab Methods,
Major Oxides,
Metals,
Methods,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Prospect,
Mineral Resources,
Minerals,
Mining,
Minor Oxides,
Non-Metals,
Ore Deposit,
Ores,
Palladium,
Platinum,
Platinum Group Elements,
Precious Metals,
Prospecting Sites,
Resource Assessment,
Resource Information,
Resources,
Sample Location,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Stream Sediments,
Trace Elements,
Trace Geochemical,
Trace Metals,
geoscientificInformation, Fewer tags
During the 2017 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted geologic mapping and sampling of part of the Richardson Mining District southeast of Fairbanks, including parts of the Big Delta B-4, B-5, and C-5 quadrangles. The project area is about 30 miles west of the Pogo gold mine and covers the currently active Montecristo and Uncle Sam gold-exploration properties. The goal of DGGS's work in this area is to conduct a mineral-resource assessment and to build an improved understanding of the area's geology and controls on gold mineralization to facilitate industry exploration targeting. This report is based on 17 days of fieldwork completed June 23-July 3,...
Tags: Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results,
Base Metals, All tags...
Big Delta Quadrangle,
Chemistry,
Critical Minerals,
Economic Geology,
Economic Study,
Exploration,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geologic,
Geology,
Lab Methods,
Major Oxides,
McCoy Creek,
Metals,
Methods,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Prospect,
Mineral Resources,
Minerals,
Mining,
Minor Oxides,
Minton Creek,
Monte Cristo Creek,
Non-Metals,
Ore Deposit,
Ores,
Precious Metals,
Prospecting Sites,
Resource Assessment,
Resource Information,
Resources,
Richardson Mining District,
Sample Location,
Stream Sediments,
Trace Elements,
Trace Geochemical,
Trace Metals,
Uncle Sam prospect,
geoscientificInformation, Fewer tags
Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a helicopter-supported geological and geochemical resource assessment project in the Beaver, Bettles, Livengood, and Tanana quadrangles from June 23 through August 5, 2012. The objectives of DGGS's resource assessment are to improve the trace-element geochemical coverage of selected watersheds; to obtain modern, quantitative geochemical analyses; to understand the petrogenesis of the granites; and to better document established mineral occurrences. Stream-sediment, pan-concentrate, and rock sampling were conducted as part of the State's Rare Earth Elements and Strategic Minerals Assessment project, which is...
Tags: Aluminum,
Antimony,
Arsenic,
Augen Gneiss,
Barium, All tags...
Basalt,
Base Metals,
Batholith,
Beaver Quadrangle,
Bedrock,
Beryllium,
Bettles Quadrangle,
Bismuth,
Bonanza Creek,
Cadmium,
Calcium,
Caribou Mountain,
Cerium,
Cesium,
Chalcopyrite,
Chlorite,
Chromium,
Coal Creek,
Cobalt,
Copper,
Critical Minerals,
Dall River,
Dalton Highway,
Dysprosium,
Economic Geology,
Erbium,
Europium,
Exploration,
Felsic,
Fish Creek,
Fleshlanana Creek,
Fluorine,
Fort Hamlin Hills,
Gadolinium,
Galena,
Gallium,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geology,
Germanium,
Gishna Creek,
Gneiss,
Gobblers Knob,
Gold,
Granite,
Greisen,
Hafnium,
Halu Creek,
Heavy Metals,
Holmium,
Hornfels,
Igneous Rocks,
Iron,
Ishtalitna Creek,
Kanuti Hot Springs,
Kanuti Kilolitna River,
Kanuti River,
Kilo Hot Springs,
Koyuk Mining District,
Lanthanide Elements,
Lanthanum,
Livengood Quadrangle,
Lode,
Lower Ray Hot Springs,
Lutetium,
Magnesium,
Major Oxides,
Manganese,
McQuesten Creek,
Metabasite,
Metals,
Metamorphic Rocks,
Metasedimentary rocks,
Metavolcanic rocks,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Resources,
Minor Oxides,
Molybdenum,
Monazite,
Mount Henry Eakin,
Mount Tozi,
Neodymium,
Nickel,
Niobium,
No Name Creek,
Non-Metals,
Palladium,
Pan Concentrates,
Phosphorus,
Placer,
Placer Gold,
Platinum,
Platinum Group Elements,
Potassium,
Praseodymium,
Precious Metals,
Promethium,
Prospect Creek,
Rare Earth Elements,
Ray Mountains,
Ray River,
Ray River Hot Springs,
Ree,
Resource Assessment,
Resources,
Rhyolite,
Rubidium,
Samarium,
Scheelite,
Schist,
Selenium,
Silica,
Silver,
Sithylemenkat Lake,
Sodium,
Soil Chemistry,
Soil Sampling,
Sphalerite,
Strategic Minerals,
Stream Sediments,
Strontium,
Sulfides,
Sulfur,
Tanana Quadrangle,
Tantalum,
Thallium,
Thorium,
Tin,
Titanium,
Tokusatatquaten Lake,
Torment Creek,
Tourmaline,
Trace Elements,
Trace Geochemical,
Trace Metals,
Trans-Alaska Pipeline,
Tungsten,
Upper Ray Hot Springs,
Uranium,
Vanadium,
Volcaniclastics,
Ytterbium,
Zeunerite,
Zinc,
Zirconium,
geoscientificInformation, Fewer tags
In 2012, the State of Alaska established its Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), to evaluate Alaska's statewide potential for SCM resources. The project is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For decades, the Ray Mountains area of west-central Alaska has been explored for its potential mineral resources. To further assess the rare-earth-element (REE) potential of the State-selected and top-filed lands in the Ray Mountains area, mineral-resource geologists at DGGS carried out a helicopter-supported geological and...
Tags: Base Metals,
Batholith,
Bedrock,
Bettles Quadrangle,
Cerium, All tags...
Chlorite,
Critical Minerals,
Dalton Highway,
Dysprosium,
Economic Geology,
Erbium,
Europium,
Exploration,
Felsic,
Fluorine,
Fort Hamlin Hills,
Gadolinium,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geology,
Gneiss,
Greisen,
Heavy Metals,
Holmium,
Hornfels,
Igneous Rocks,
Iron,
Lanthanide Elements,
Lanthanum,
Lode,
Lutetium,
Major Oxides,
Metals,
Metamorphic Rocks,
Metavolcanic rocks,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Resources,
Minor Oxides,
Monazite,
Neodymium,
No Name Creek,
Phosphorus,
Placer,
Praseodymium,
Promethium,
Rare Earth Elements,
Ray Mountains,
Ray River,
Ree,
Resource Assessment,
Resources,
Rhyolite,
Rubidium,
Samarium,
Sample Location,
Scheelite,
Schist,
Silica,
Silver,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Thallium,
Thorium,
Tin,
Titanium,
Tourmaline,
Trace Elements,
Trace Geochemical,
Trace Metals,
geoscientificInformation, Fewer tags
Geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) and University of Alaska carried out a two-part geologic mapping and geochemical sampling project in the Tok River area of the Tanacross A-5 and A-6 quadrangles (June 12-26 and July 8-26). The Tok River area is adjacent to the Delta mineral belt volcanogenic massive-sulfide (VMS) district, the Peak gold-silver-copper skarn, and the structurally controlled gold and antimony mineralization in the Stibnite Creek and White Gold areas. The Tok River project area includes the Noah (also called Hona) prospect, an intrusion-related copper prospect. The combination of insufficient detailed geologic mapping, historical and current industry interest...
Tags: Analyses,
Analyses and Sampling,
Analytic Signal,
Analytical Lab Results,
Analytical Results, All tags...
Antimony,
Arsenic,
Bedrock,
Chemistry,
Dall Prospect,
Eagle Prospect,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Gold,
Gold Prospect,
Jacqueline Prospect,
Lab Methods,
Major Oxides,
Massive Sulfide Deposit,
Massive Sulfide Occurrence,
Massive Sulfide Prospect,
Massive Sulfides,
Metallogenesis,
Metals,
Metamorphic Rocks,
Metasedimentary Rocks,
Metavolcanic rocks,
Mineral Assessment,
Mineral Localities,
Mineral Prospect,
Minor Oxides,
Noah Prospect,
Parton Prospect,
Shalosky Prospect,
Tanacross Quadrangle,
Tok,
Tok Mining District,
Tok River,
Trace Elements,
Trace Geochemical,
Volcanogenic Massive Sulfide,
geoscientificInformation, Fewer tags
This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Tags: Aerial Photography,
Aeromagnetic Survey,
Age Dates,
Amphibolite,
Ar-Ar, All tags...
Bibliography,
C14,
CIPW Norms,
Carbonates,
Clastics,
Coal,
Conductivity Survey,
Conodonts,
Electromagnetic Survey,
Faulting,
Faults,
Folding,
Fossils,
Geologic,
Geomorphology,
Geothermometry,
Glacial,
Glacial Processes,
Greenschist,
Igneous Rocks,
Index Minerals,
Isograds,
Isotopes,
K-Ar,
Lode,
Major Oxides,
Metamorphic Grade,
Metamorphic Minerals,
Metamorphism,
Modal Analysis,
Petrography,
Plutonic,
Plutonic Hosted,
Precious Metals,
Reconstructions,
Regional,
Regional Metamorphism,
Resource Assessment,
Rifting,
Sample Location,
Sandstone,
Schist,
Sedimentary,
Shale,
Structure,
Surficial,
Tectonics,
Terranes,
Type Section,
Uplift,
Volcanic,
Yukon River,
geoscientificInformation, Fewer tags
A pilot study using discriminant analysis on major oxide and minor element data from 67 chert samples in the Rampart area, southeastern Tanana and southwest Livengood Quadrangles, western Yukon-Tanana Upland, Alaska, generally indicates a unique geochemical signature for the cherts of a given unit.Chert samples from five known type locales were used as standards of comparison: 1)Livengood Dome Chert (Ordovician), 2)Amy Creek unit (Proterozoic to early Paleozoic), 3)Rampart Group (Mississippian to Triassic), 4)Troublesome Creek unit (Devonian), and 5)Permian-Triassic clastic unit (associated with the Triassic-dated gabbro). Samples from the above units were compared to chert from Tanana B-1 area-units of unknown...
Tags: Barium,
Bedrock Geologic Map,
Chemistry,
Chert,
Geochemical Data, All tags...
Geochemical Surveys,
Geochemistry,
Livengood Quadrangle,
Major Oxides,
Metasedimentary rocks,
Methods,
Phosphorus,
Potassium,
Rampart Mining District,
Rampart-Manley Mining District,
Rare Earth Elements,
Rubidium,
Silica,
Strontium,
Tanana Quadrangle,
Titanium,
Trace Elements,
Vanadium,
Yttrium,
Zirconium, Fewer tags
This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed bedrock, structural, and stratigraphic data. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland of interior Alaska.
Tags: 40Ar/39Ar,
Aerial Photography,
Aeromagnetic Survey,
Age Dates,
Bedrock, All tags...
CIPW Norms,
Cerium,
Conductivity Survey,
Dome,
Economic Geology,
Faults,
Fossils,
Geochemical Surveys,
Geological Process,
Glaciers,
Gold,
Isotopes,
K-Ar,
Major Oxides,
Manley Basin,
Manley Hot Springs,
Modal Analysis,
Niobium,
Permeability,
Petroleum,
Placer,
Production Data,
Resource Assessment,
Rocks,
Silver,
Yukon River,
geoscientificInformation, Fewer tags
The Iniskin-Tuxedni Bay area contains excellent exposures of nearly all of the lower Cook Inlet Mesozoic succession, including most of the stratigraphic sections that define the interval and the petroleum source rocks that comprise the basin. An underdeveloped understanding of the Mesozoic petroleum system has led the Alaska Department of Natural Resources' Division of Geological & Geophysical Surveys and Division of Oil and Gas, and the U.S. Geological Survey to collaborate on a multi-year project that includes two major mapping campaigns. Geologic mapping between Chinitna Bay and the Johnson River during the 2015 field season encompassed volcanic arc rocks northwest of the Bruin Bay fault system, and Mesozoic...
Tags: Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results,
Chemistry, All tags...
Chitina,
Cook Inlet,
Geochemical Data,
Geochemistry,
Geology,
Igneous,
Igneous Rocks,
Iliamna,
Kenai,
Lab Methods,
Magmatic Arc,
Major Oxides,
Minor Oxides,
STATEMAP Project,
Sample Location,
Trace Elements,
Volcanic,
Volcanic Arc,
Volcanic Rocks,
geoscientificInformation, Fewer tags
The rock samples in this publication were collected in 2006 during geologic field mapping within the Council airborne geophysical survey tract. The analyses were acquired to aid interpretation and development of the geologic map and evaluation of the area's mineral potential. To further geologic understanding of the area, igneous and metamorphic rock samples were selected for whole-rock geochemical analysis. Unweathered or minimally weathered rock samples were preferentially selected for analysis. Non-carbonate carbon analyses were obtained to determine the percentage of graphite in metasedimentary rocks. To help evaluate the area's mineral resource potential, rock samples were selected for geochemical analysis;...
Tags: Alaska, State of,
Bluff,
Casadepaga River,
Council,
Council Mining District, All tags...
Geochemistry,
Major Oxides,
Nome Quadrangle,
STATEMAP Project,
Seward Peninsula,
Solomon Quadrangle,
Trace Metals,
geoscientificInformation, Fewer tags
In conjunction with hosting field trips for the Association of American State Geologists 2016 annual meeting in Girdwood, Alaska, Alaska Division of Geological & Geophysical Surveys (DGGS) staff collected rock samples and obtained geochemical analysis from several readily accessible, but relatively unstudied outcrops. Samples were collected from Turnagain Arm (mile 104 Seward Highway), Whittier, Crow Pass, and Panorama Mountain (roughly mile 217 Parks Highway). Mineralized samples from veins and veinlets in granitic rocks from the Crow Pass and Whittier sites contain anomalous levels of gold ranging from 0.129 to 0.650 parts per million (ppm). Although none of the samples are from areas open to mineral entry, geochemical...
Tags: Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results,
Base Metals, All tags...
Bedrock,
Bedrock Geology,
Chemistry,
Economic Geology,
Exploration,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geologic,
Geologic Map,
Geology,
Gold,
Gold Prospect,
Heavy Metals,
Igneous,
Igneous Rocks,
Lab Methods,
Magmatic Arc,
Major Oxides,
Metallogenesis,
Metals,
Mineral Assessment,
Mineral Deposit,
Mineral Development,
Mineral Localities,
Mineral Prospect,
Mineral Resources,
Mineralogy,
Minerals,
Mining,
Minor Oxides,
Ore Deposit,
Ores,
Petrology,
Plutonic,
Plutonic Hosted,
Plutonic Rocks,
Plutons,
Precious Metals,
Resource Assessment,
Resource Information,
Resources,
Sample Location,
Southcentral Alaska,
Trace Elements,
Trace Geochemical,
Trace Metals,
Whittier,
geoscientificInformation, Fewer tags
Jumbo Dome is a hornblende andesite dome of Pleistocene age located in the Healy Quadrangle of central Alaska, about 19 km northeast of Healy, Alaska. Jumbo Dome is approximately 1.6 km long, 1.3 km wide, and 500 m high and intrudes the Devonian Keevy Peak Formation basement (slate, quartz-sericite schist, graphitic schist, calcareous schist, quartz-feldspar metawacke, and conglomerate) and overlying Tertiary Suntrana Formation (sandstone, clay, and coal). Jumbo Dome is not well studied and these samples plus the three analyses from Albanese (1980) represent the known total of published whole-rock geochemical analyses for this volcanic feature. Jumbo Dome lava has the diagnostic arc signature of low ratios of concentrations...
The mineral-resources group from the Alaska Division of Geological & Geophysical Surveys (DGGS) carried out a geologic mapping project in the Talkeetna Mountains C-4, C-3, and B-4 quadrangles from July 23 through August 3, 2014. This project is a part of a multi-year project focusing on improving the publicly-available geological and geochemical data and assessing the mineral potential of the less-explored extension of the western Wrangellia terrane. This program of geologic mapping and rock sampling was conducted as part of the U.S. Geological Survey National Cooperative Geologic Mapping Program and the state of Alaska's Strategic Minerals Assessment project, an initiative designed to evaluate Alaska's potential...
Tags: Copper,
Geochemical Data,
Geochemical Surveys,
Gold,
Greenstone, All tags...
Iron Creek,
Major Oxides,
Mineral Assessment,
Platinum Group Elements,
Rare Earth Elements,
STATEMAP Project,
Silver,
Stephan Lake,
Strategic and Critical Minerals Assessment Project,
Talkeetna Mountains,
Talkeetna Mountains Quadrangle,
Talkeetna River,
Trace Elements,
Tsisi Creek,
geoscientificInformation, Fewer tags
Late Triassic mafic to ultramafic intrusions in the Wrangellia terrane are host to magmatic sulfide nickel-copper-cobalt and platinum-group element (PGE) mineralization. DGGS's mineral-resources group carried out a geologic mapping project in the eastern Denali Highway region between Watana Creek and Paxson from July 29 through August 7, 2015. This project is part of a multi-year effort focusing on improving the publicly available geological and geochemical data and assessing the mineral potential of the less-explored extension of the western Wrangellia terrane; other data resulting from this project include geophysical surveys and several geochemical datasets. This program of geologic mapping and rock sampling...
Tags: Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results,
Basalt, All tags...
Bedrock Geologic Map,
Cobalt,
Copper,
Critical Minerals,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Greenstone,
Lab Methods,
Major Oxides,
Minor Oxides,
Mount Hayes Quadrangle,
Nickel,
Palladium,
Platinum Group Elements,
Sample Location,
Silver,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Sulfur,
Talkeetna Mountains Quadrangle,
Trace Geochemical,
Ultramafic,
geoscientificInformation, Fewer tags
The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project, is designed to evaluate Alaska's statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data throughout Alaska. In 2014 and 2015 DGGS also collected and geochemically analyzed 114 rock samples from mafic and ultramafic rocks to evaluate the Tonsina area's potential for platinum-group elements, nickel, and chromium; analytical results are presented in this report.
Tags: Chugach Mountains,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geology, All tags...
Lab Methods,
Major Oxides,
Metals,
Mineral Assessment,
Mineral Deposit,
Mineral Localities,
Mineral Prospect,
Mineral Resources,
Minerals,
Minor Oxides,
Nickel,
Platinum Group Elements,
Rare Earth Elements,
Ree,
Resource Information,
Resources,
Sample Location,
Strategic Minerals,
Strategic and Critical Minerals Assessment Project,
Tonsina,
Trace Elements,
Trace Geochemical,
Trace Metals,
Ultramafic,
Valdez Quadrangle,
geoscientificInformation, Fewer tags
In conjunction with hosting field trips for the Association of American State Geologists 2016 annual meeting in Girdwood, Alaska, Alaska Division of Geological & Geophysical Surveys (DGGS) staff collected rock samples and obtained geochemical analysis from several readily accessible, but relatively unstudied outcrops. Samples were collected from Turnagain Arm (mile 104 Seward Highway), Whittier, Crow Pass, and Panorama Mountain (roughly mile 217 Parks Highway). Mineralized samples from veins and veinlets in granitic rocks from the Crow Pass and Whittier sites contain anomalous levels of gold ranging from 0.129 to 0.650 parts per million (ppm). Although none of the samples are from areas open to mineral entry, geochemical...
Tags: Analyses,
Analyses and Sampling,
Analytical Lab Results,
Analytical Results,
Base Metals, All tags...
Bedrock,
Bedrock Geology,
Chemistry,
Economic Geology,
Exploration,
Geochemical Data,
Geochemical Surveys,
Geochemistry,
Geologic,
Geologic Map,
Geology,
Gold,
Gold Prospect,
Heavy Metals,
Igneous,
Igneous Rocks,
Lab Methods,
Magmatic Arc,
Major Oxides,
Metallogenesis,
Metals,
Mineral Assessment,
Mineral Deposit,
Mineral Development,
Mineral Localities,
Mineral Prospect,
Mineral Resources,
Mineralogy,
Minerals,
Mining,
Minor Oxides,
Ore Deposit,
Ores,
Petrology,
Plutonic,
Plutonic Hosted,
Plutonic Rocks,
Plutons,
Precious Metals,
Resource Assessment,
Resource Information,
Resources,
Sample Location,
Southcentral Alaska,
Trace Elements,
Trace Geochemical,
Trace Metals,
Whittier,
geoscientificInformation, Fewer tags
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