Geologic map of the Circle mining district, Alaska
type: Dataset
description: This report provides detailed (1:63,360-scale) mapping of portions of U.S. Geological Survey Circle B-2 (1955), B-3 (1955), B-4 (1952), C-2 (1955), C-3 (1955), and C-4 (1952) quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. 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.
keyword: aereal
keyword: aerial-photography
keyword: aeromagnetic-survey
keyword: age-dates
keyword: alaska
keyword: alluvial-deposits
keyword: alluvium
keyword: amerigeo
keyword: amerigeoss
keyword: amphibolite
keyword: ar-ar
keyword: bedrock
keyword: bibliography
keyword: birch-creek
keyword: c14
keyword: carbonates
keyword: circle-hot-springs
keyword: circle-mining-district
keyword: circle-quadrangle
keyword: ckan
keyword: clastics
keyword: coal
keyword: colluvial-deposits
keyword: colluvium
keyword: conductivity-survey
keyword: conodonts
keyword: cretaceous
keyword: crooked-creek
keyword: electromagnetic-survey
keyword: fan
keyword: faulting
keyword: faults
keyword: fluvial
keyword: folding
keyword: fossils
keyword: geo
keyword: geologic
keyword: geomorphology
keyword: geoss
keyword: glacial
keyword: glacial-deposits
keyword: glacial-drift
keyword: granite
keyword: holocene
keyword: hornblende
keyword: hornfels
keyword: igneous-rocks
keyword: k-ar
keyword: magnetite
keyword: major-oxides
keyword: mammoth-creek
keyword: mastodon-dome
keyword: metamorphic-grade
keyword: metamorphic-minerals
keyword: metamorphism
keyword: mineralogy
keyword: modal-analysis
keyword: national
keyword: north-america
keyword: paleozoic
keyword: petrography
keyword: pleistocene
keyword: plutonic
keyword: plutonic-hosted
keyword: porphyry
keyword: precious-metals
keyword: quartz
keyword: quaternary
keyword: regional
keyword: regional-metamorphism
keyword: sample-location
keyword: sandstone
keyword: schist
keyword: sedimentary
keyword: state-of
keyword: structure
keyword: surficial

US Migrating
type: Agent

SHP
type: Distribution
description: CSDGM IMPORT ERROR: No digtinfo/formcont
access URL: http://dx.doi.org/10.14509/2514
issued: 2020-11-10T16:16:03.077737
modified: 2025-11-20T16:56:17.441082

PDF
type: Distribution
description: CSDGM IMPORT ERROR: No digtinfo/formcont
access URL: http://dx.doi.org/10.14509/2514
issued: 2020-11-10T16:16:03.077744
modified: 2025-11-20T16:56:17.441517

Web Resource
type: Distribution
access URL: http://dx.doi.org/10.14509/2514
issued: 2020-11-10T16:16:03.077746
modified: 2025-11-20T16:56:17.441928

Web Resource
type: Distribution
access URL: http://dx.doi.org/10.14509/1625
issued: 2020-11-10T16:16:03.077749
modified: 2025-11-20T16:56:17.442336