Gunnison Complex

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Series: DNAG, Centennial Field Guides
Published: 01 January 1987
DOI: 10.1130/0-8137-5402-X.325
EISBN: 9780813754086
... Abstract The carbonatite complex at Iron Hill is located southeast of the town of Powderhorn along Cebolla Creek, Deldorado Creek, and Beaver Creek in Gunnison County, Colorado. To reach the complex, travel 9 mi (14.5 km)west of Gunnison on U.S. 50 to the intersection with Colorado 149, turn...
Sketch map of southwestern United States showing Paleoproterozoic tectonic ...
Published: 01 July 2008
area (after Karlstrom, 1988 ). Inset: Map of Gunnison-Salida area showing distribution of Dubois succession, Cochetopa succession, and major plutons. CC—monzonite of Cochetopa Canyon; FgG—fine-grained granite near Powderhorn; GB—tonalite of Gold Basin; GIC—Gunnison Igneous Complex; GS—granite near
Journal Article
Published: 01 June 2017
Rocky Mountain Geology (2017) 52 (1): 17–106.
... and zircon supports the contention that this granite was produced in a magmatic arc environment and, therefore, is likely an extension of the older Dubois Greenstone Belt of the Gunnison Igneous Complex (GIC) and the Needle Mountains (1,770–1,755 Ma). Rocks of the younger Cochetopa succession of the GIC...
FIGURES | View All (48)
Journal Article
Journal: Economic Geology
Published: 01 June 1965
Economic Geology (1965) 60 (4): 672–692.
...A. K. Temple; R. M. Grogan Abstract The pear-shaped outcrop of the alkalic rock complex at Powderhorn, Gunnison County, covers approximately 12 square miles. About 70 percent is underlain by pyroxenite which is intruded and/or replaced by concentric suites of nepheline and melilite-bearing rocks...
Journal Article
Journal: GSA Bulletin
Published: 01 November 1985
GSA Bulletin (1985) 96 (11): 1364–1372.
...E. E. LARSON; P. E. PATTERSON; G. CURTIS; K. DRAKE; F. E. MUTSCHLER Abstract A west-northwest–trending dike swarm consisting of at least 50 mafic dikes cuts Precambrian basement rocks in the area in and south of the Black Canyon of the Gunnison, Colorado, and in Unaweap Canyon near the Colorado...
Journal Article
Journal: AAPG Bulletin
Published: 01 November 1965
AAPG Bulletin (1965) 49 (11): 2041–2075.
.... The eastern and northern boundaries of the basin are a complex fault zone along the western margin of the Sangre de Cristo uplift which merges, around the northern end of the basin, with the Sawatch and Gunnison uplifts. Much of the San Luis basin is filled with middle to upper Tertiary and Quaternary...
FIGURES | View All (12)