Regional Maps and Technical Reports by Region

1. Tectonic Maps of the Great Basin and Sierra Nevada

2. Late Cenozoic Faults of the western Great Basin (scale 1:100,000)

3. Regional structure and tectonics of the southern and central Walker Lane, western Great Basin

4. Structure and Tectonics of the North-Central Great Basin

5. Structure and Tectonics of Northern Alaska and Northwestern Canada

Tectonic Maps of the Great Basin and Sierra Nevada

Series of geologic and structural maps compiled from published and unpublished sources at a scale of 1:1,480,000. Maps are suitable for printing as 52x48 inch plates. Available in paper or as pdf. The maps depict the spatial distribution of sedimentary and igneous rocks in the western Great Basin and Sierra Nevada. Emphasis is placed on pre-Cenozoic lithotectonic assemblages, plutonic rocks, and major structural belts and their relationship with major mining districts in the Great Basin.

• Map 1 General Geology

• Map 2 Plutonic Rocks and Crustal Structure

• Map 3 Plutonic Rocks and Radiometric Ages

• Map 4 Mesozoic Lithotectonic Assemblages and Structures

• Map 5 Mesozoic Lithotectonic Assemblages, Structures, and Plutons

• Map 6 Upper Paleozoic Lithotectonic Assemblages and Structures

• Map 7 Lower Paleozoic and Precambrian Lithotectonic Assemblages, Plutons, and Structures

• Map 8 Regional Structures and Major Mining Districts in the Great Basin

Late Cenozoic Faults of the western Great Basin (1:100,000 scale maps)

Series of fault maps derived from published and unpublished sources, space-aerial imagery analysis, and regional and local geologic mapping. Fault maps show the distribution of high-angle and low-angle (where present) faults on a topographic base (1:100,000). Undifferentiated bedrock and Quaternary sediment contacts show the location of deep sedimentary basins. Regional compilations of multiple 30 minute sheets are available upon request.

Mapping completed:

• Late Cenozoic Faults of the Alvord Lake 30 minute sheet, Oregon

• Late Cenozoic Faults of the Battle Mountain 30 minute sheet, Nevada

• Late Cenozoic Faults of the Benton Range 30 minute sheet, Nevada and California

• Late Cenozoic Faults of the Bishop 30 minute sheet, California

• Late Cenozoic Faults of the Cactus Flat 30 minute sheet, Nevada

• Late Cenozoic Faults of the Carson City 30 minute sheet, Nevada

• Late Cenozoic Faults of the Carson Sink 30 minute sheet, Nevada

• Late Cenozoic Faults of the Denio 30 minute sheet, Nevada

• Late Cenozoic Faults of the Excelsior 30 minute sheet, Nevada and California

• Late Cenozoic Faults of the Fallon 30 minute sheet, Nevada

• Late Cenozoic Faults of the Gerlach 30 minute sheet, Nevada

• Late Cenozoic Faults of the Goldfield 30 minute sheet, Nevada

• Late Cenozoic Faults of the High Rock Canyon 30 minute sheet, Nevada

• Late Cenozoic Faults of the Ione Valley 30 minute sheet, Nevada

• Late Cenozoic Faults of the Jackson Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Last Chance Range 30 minute sheet, Nevada and California

• Late Cenozoic Faults of the Pahute Mesa 30 minute sheet, Nevada

• Late Cenozoic Faults of the Saline Valley 30 minute sheet, California

• Late Cenozoic Faults of the Simpson Peak Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Smith Creek Valley 30 minute sheet, Nevada

• Late Cenozoic Faults of the Smith Valley 30 minute sheet, Nevada and California

• Late Cenozoic Faults of the Tonopah 30 minute sheet, Nevada

• Late Cenozoic Faults of the Vya 30 minute sheet, Nevada

• Late Cenozoic Faults of the Walker Lake 30 minute sheet, Nevada

• Late Cenozoic Faults of the Warm Springs 30 minute sheet, Nevada

Mapping In Progress:

• Late Cenozoic Faults of the Adel 30 minute sheet, Oregon

• Late Cenozoic Faults of the Alturas 30 minute sheet, California

• Late Cenozoic Faults of the Beatty 30 minute sheet, Nevada

• Late Cenozoic Faults of the Bluejoint Lake 30 minute sheet, Oregon

• Late Cenozoic Faults of the Bull Run Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Cedarville 30 minute sheet, California

• Late Cenozoic Faults of the Crescent Valley 30 minute sheet, Nevada

• Late Cenozoic Faults of the Darwin Hills 30 minute sheet, California

• Late Cenozoic Faults of the Death Valley Junction 30 minute sheet, California and Nevada

• Late Cenozoic Faults of the Duckwater 30 minute sheet, Nevada

• Late Cenozoic Faults of the Eagle Lake 30 minute sheet, California

• Late Cenozoic Faults of the Edwards Creek Valley 30 minute sheet, Nevada

• Late Cenozoic Faults of the Eugene Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Fish Creek Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Indian Springs 30 minute sheet, Nevada

• Late Cenozoic Faults of the Jordan Valley 30 minute sheet, Oregon

• Late Cenozoic Faults of the Kumiva Peak 30 minute sheet, Nevada

• Late Cenozoic Faults of the Las Vegas 30 minute sheet, Nevada

• Late Cenozoic Faults of the Lake Abert 30 minute sheet, Oregon

• Late Cenozoic Faults of the Louse Canyon 30 minute sheet, Oregon

• Late Cenozoic Faults of the Lovelock 30 minute sheet, Nevada

• Late Cenozoic Faults of the Mount Jefferson 30 minute sheet, Nevada

• Late Cenozoic Faults of the Osgood Mountains 30 minute sheet, Nevada

• Late Cenozoic Faults of the Pahranagat Range 30 minute sheet, Nevada

• Late Cenozoic Faults of the Reno 30 minute sheet, Nevada

• Late Cenozoic Faults of the Steens Mountain 30 minute sheet, Oregon

• Late Cenozoic Faults of the Susanville 30 minute sheet, California

• Late Cenozoic Faults of the Timpahute Range 30 minute sheet, Nevada

• Late Cenozoic Faults of the Tuscarora 30 minute sheet, Nevada

• Late Cenozoic Faults of the Quinn Canyon Range 30 minute sheet, Nevada

• Late Cenozoic Faults of the Quinn River Valley 30 minute sheet, Nevada, Oregon, and Idaho

• Late Cenozoic Faults of the Winnemucca 30 minute sheet, Nevada
  

Regional structure and tectonics of the southern and central Walker Lane, western Great Basin

• Technical Report 1: Regional Setting, Geometry, and Structure of the Northern Fish Lake Valley Basin

The report presents the regional setting and geology of the Fish Lake Valley region through text, geologic maps, structural maps, and gravity anomaly and depth inversion maps used to construct a grid of cross sections (28 figures). The report integrates geologic mapping, stratigraphic and structural analysis, and depth inversion of several thousand gravity points to characterize the geometry and internal stratigraphy of basins underlying Fish Lake Valley.

• Technical Report 2: The Stratigraphy, Structure, and Spatial Distribution of the Fish Lake Valley Assemblage in Northern Fish Lake Valley, Nevada: Implications for Li Brine and Li Mudstone Exploration

The report consists of text and figures, 46 map plates of the northern Fish Lake Valley and adjacent flanks of the basin exposed in the eastern Volcanic Hills and western Silver Peak Range, and 18 plates of interpreted and depth-converted seismic reflection sections along the northwestern flank of northern Fish Lake Valley basin in the eastern Volcanic Hills. This report is an extension of the regional synthesis presented Technical Report 1, and integrates 76 borehole logs (depths of several hundred to over 12 thousand feet) with geologic mapping, gravity depth-inversion, and radiometric age constraints, to refine the understanding of the stratigraphy and structure of Pliocene to Quaternary rocks of the Fish Lake Valley assemblage. The Fish Lake Valley assemblage contains prospective Li-mudstone deposits and in the deepest parts of two structural basin has Li-brine targets. The report characterizes the stratigraphy of the Fish Lake Valley assemblage (3 members) and total thickness of the entire unit and individual members as isopach and structural-contour maps, and illustrates the internal stratigraphy and structure of deep (>6000 feet) basins and outcrops on the basin flanks.

Structure and Tectonics of the North-Central Great Basin

• Technical Report 3: Appraisal of the Regional Framework of Late Paleozoic and Mesozoic Contractional Structures in the Carlin Trend and Adjacent Areas, Northeastern Nevada

The report is a preliminary appraisal of the geometry and timing of superposed folds in and adjacent to the Carlin Trend in northeastern Nevada. Superposed folds and cleavage provide the geometrical constraints for sequential development of five-generations of structures. Timing constraints three periods of regional contractional deformation is established through the measurement of structures in rocks of different ages.

• Technical Report 4: Evolution of Cenozoic Structures in the Crescent Valley Region of North-Central Great Basin

The report integrates geologic mapping, potential field geophysics, seismic reflection profiles, and kinematic analysis of faults to establish the geometric linkage amongst high-angle faults and how the structures evolved during Cenozoic changes in regional extension direction.

• Technical Report: 5 Characterization and Assessment of Mineral Deposit Control by Superposed Phanerozoic Structures in the Northwest and North-Central Great Basin

The report provides regional context for the development of large-scale structural domes that localize mineralization in the northern Great Basin. The geometry and tectonic history of late Paleozoic to Mesozoic thrusts and folds are characterized in text, figures, and a series of tectonic maps for the region.

Structure and Tectonics of Northern Alaska and Northwestern Canada

Technical Report 6: Structural Analysis of the Canning River and Philip Smith Region of the Brooks Range and North Slope, Eastern Arctic Alaska

The report consists of text, 7 well logs from the northeastern North Slope (Arctic National Wildlife Refuge), X seismic reflection profiles, regional geologic map (1:500,000 scale), and restorable cross sections along 3 north-south profiles and 1 east-west profile through the northeastern Brooks Range and North Slope foreland basin. The restorable sections provide constraints for forward models for sequential imbrication of thrust sheets.

Technical Report 8: Structural Analysis of the Porcupine Shear Zone and the Kaltag, Tozitna, and Tintina Fault Zones, Northeastern Alaska and Northwestern Canada

The report contains text, compilation map (1:750,000 scale), kinematic analysis of major strike-slip structures, and timing relations outlining the displacement history on the Porcupine Shear Zone and the Kaltag, Tozitna, and Tintina Fault Zone and their relationship to the opening of the Yukon Flats Basin. Kinematic analysis of folds and faults indicates significant reorganization of displacement directions on the structures through the Mesozoic and Cenozoic.