Name of state geological survey: nevada bureau of mines and geologyproposal title: nevada bureau of mines and geology 2025 statemap proposalproject period: 09 18 2025 09 17 2027PURPOSE: the nevada…

The Nevada Bureau of Mines and Geology (NBMG) received a $1,345,520 Cooperative Agreement from the U.S. Geological Survey (USGS) under the National Cooperative Geologic Mapping Program (NCGMP, CFDA 15.810) for the STATEMAP component. The award, announced on September 18, 2025, with a performance period through September 17, 2027, will fund detailed geologic mapping activities across Nevada and the preparation of geologic map publications and digital datasets for public release. Primary deliverables include new bedrock and surficial geologic maps produced through field mapping using GPS-enabled technology, aerial photography, high-resolution satellite imagery, and LiDAR data, supplemented by laboratory analyses to establish geologic context.

The award will support personnel costs for NBMG geologic mapping staff, including field geologists, GIS analysts, cartographers, and project managers, as well as travel and laboratory expenses necessary to complete the mapping work. Mapping activities will emphasize Quaternary fault characterization and relative age dating of displaced deposits to support seismic hazard analyses, along with detailed documentation of structural geology including faults, folds, and shear zones. Deliverables will be produced in standards-compliant digital geologic database formats consistent with USGS Geologic Map Information System (GEMS) Level 3 specifications and will be accompanied by technical reports and cross-sections.

Name of state geological survey: nevada bureau of mines and geologyproposal title: nevada bureau of mines and geology 2025 statemap proposalproject period: 09 18 2025 09 17 2027PURPOSE: the nevada bureau of mines and geology (nbmg) statemap 2025 award willsupport geologic mapping activities across the state of nevada as well as the preparation ofgeologic map publications and data sets for public release. Much of this award will fund salariesfor nbmg personnel focused on geologic mapping projects including field geologists, gisanalysts cartographers, and project managers. The award will also support travel expenses forfield work and laboratory analyses to understand the geologic context of map units.activities: detailed geologic mapping of bedrock and surficial materials will be done in the fieldusing GPS-enabled tablet computers, hand-held GPS, and aerial photographs. Digital fieldmapping and office digitization will use the best available base data, including high-resolutionsatellite imagery and lidar where available. Bedrock mapping in areas with a well constrainedstratigraphic framework will focus on distinguishing geologic units that are consistent and easilycorrelated with adjacent map areas. In areas with poor stratigraphic control or locally distinctgeology, the bedrock units will be subdivided in such a way to best capture the depositional andintrusive history of the area and constrain the timing and magnitude of tectonic deformation.quaternary mapping will subdivide surficial units based on deposit type and relative agedetermined through the examination of soil profiles, geomorphology, and age dating. Most mapareas in nevada contain quaternary fault traces, and mapping will emphasize the division ofdisplaced surficial deposits into relative age units that document the recency of faulting, aidingseismic hazard analyses. The structural geology of each map area will be documented withdetailed mapping of deformation structures (i.e., faults, folds, and shear zones) and fieldmeasurement of bedding, foliations, and lineations. During mapping, samples of bedrock will becollected as necessary for petrographic, geochemical, and geochronologic analyses. In the office, field observations will be entered into an GIS software using the USGS gemsschema. Once the geologic map is complete, one or more topographic profiles are digitallygenerated, and geologic cross-sections are constructed. The final steps of the map productioninclude matching colors for formal map units, selecting visually optimal colors for informalstratigraphic units, merging polygons with DEM hillshades, and cartographic refinement of theoverall map layout. All maps undergo a cartographic review and a geologic review prior topublication. Map publications are available for public download at the nbmg website.deliverables and outcomes: the nbmg statemap 2025 award will support the publication ofnine 1:24,000 scale 7.5 quadrangle geologic maps and one 1:24,000 scale range area geologic map. Thelong-range geologic mapping plan of the nevada bureau of mines and geology (nbmg) has two majorgoals: 1. To facilitate the growth of nevadas urban centers and statewide infrastructure by providinginformation on geological hazards, resources, and environmental protection and, 2. To assist in theenvironmentally responsible economic development of mineral and energy resources.intended beneficiary(IES): nbmg geologic maps are used by state, county, and localgovernment agencies as well as the private sector and academic research for the assessment ofgeologic hazards, mineral and energy exploration, groundwater assessments, geotechnical andengineering geology applications, and to better understand the geologic framework of the stateand region