Project personnel

Wells, Ray E., Project Chief

Blakely, Richard J.,
Cox, Brett F.
Evarts, Russell C.
Fleck, Robert J.
Hagstrum, Jonathan T.
Haugerud, Ralph A.
Mahan, Shannon
McDougall, Kristin
Sawlan, Michael G.
Spritzer, John
Tabor, Rowland W.
Thoms, Evan
Wheeler, Karen L.

Project cooperators
Booth, Derek B.
Niem, Alan R.
Niem, Wendy A.
Tolan, Terry
Troost, Kathy Goetz

Russell C. Evarts Research Geologist U.S. Geological Survey Western Region Earth Surface Processes Team 345 Middlefield Road, MS 973 Menlo Park, CA Telephone- (650) 329-4929 Fax- (650) 329-5490 Email- revarts@usgs.gov

SPECIALTIES:

Geologic mapping, southwestern Washington geology and mineral resources, petrologic and structural evolution of the Cascade volcanic arc in space and time.

CURRENT WORK:

Russell's current work includes

PUBLICATIONS

Evarts, R.C., 1978, The Del Puerto ophiolite complex, California: a structural and petrologic investigation [Ph.D. dissertation], Stanford, California, Stanford University, 409 p.

Hunt, G.R., and Evarts, R.C., 1981, The use of near-infrared spectroscopy to determine the degree of serpentinization of ultramafic rocks: Geophysics, v. 46, p. 316-321.

Csejtey, Béla, Jr., Cox, D.P., Evarts, R.C., Stricker, G.D., and Foster, H.L., 1982, The Cenozoic Denali fault system and the Cretaceous accretionary development of southern Alaska: Journal of Geophysical Research, v. 87, p. 3741-3754.

Evarts, R.C., and Schiffman, Peter, 1983, Submarine hydrothermal metamorphism of the Del Puerto ophiolite, California: American Journal of Science, v. 283, p. 289-340.

Evarts, R.C., Frisken, J.G., Bishop, K.R., and Benham, J.R., 1983, Mineral resource potential map of the Long Swamp Roadless Area, Okanogan County, Washington: U.S. Geological Survey Miscellaneous Field Studies Map MF-l550, scale 1:50,000.

Evarts, R.C., Church, S.E., and Mosier, E.L., 1983, Mineral resource potential of the Tatoosh Roadless Area, Lewis County, Washington: U.S. Geological Survey Open-File Report 83-471, 16 p.

Evarts, R.C., Mosier, E.L., Church, S.E., and Barnes, D.J., 1983, Mineral resource potential of the Glacier View Roadless Area, Pierce County, Washington: U.S. Geological Survey Open-File Report 83-501, 17 p.

Schiffman, Peter, Williams, A.E., and Evarts, R.C., 1984, Oxygen isotope evidence for submarine hydrothermal alteration of the Del Puerto ophiolite, California: Earth and Planetary Science Letters, v. 70, p. 207-220.

Lawson, W.A., and Evarts, R.C., 1984, Map showing mineral resource potential of proposed wilderness areas, Washington: U.S. Geological Survey Open-File Report 84-347, scale 1:1,000,000.

Evarts, R.C., Ashley, R.P., and Smith, J.G., 1987, Geology of the Mount St. Helens area: Record of discontinuous volcanic and plutonic activity in the Cascade arc of southern Washington: Journal of Geophysical Research, v. 92, p. 10155-10169.

Swanson, D.A., Cameron, K.A., Evarts, R.C., Pringle, P.T., and Vance, J.A., 1989, Cenozoic Volcanism in the Cascade Range and Columbia Plateau, southern Washington and northernmost Oregon, in 28th International Geological Congress Field Trip Guidebook T106: American Geophysical Union, 60 p.

Ashley, R.P., and Evarts, R.C., 1990, Lithology, petrography, and geochemistry of three cores from the Goldfield mining district, Nevada: U.S. Geological Survey Open-File Report 90-62, 142 p.

Evarts, R.C., and Ashley, R.P., 1990, Preliminary geologic map of the Cougar quadrangle, Cowlitz and Clark Counties, Washington: U.S. Geological Survey Open-File Report 90-631, scale 1:24,000

Evarts, R.C., and Ashley, R.P., 1990, Preliminary geologic map of the Goat Mountain quadrangle, Cowlitz County, Washington: U.S. Geological Survey Open-File Report 90-632, scale 1:24,000

Koski, R.A., Hein, J.R., Bouse, R.M., Evarts, R.C., and Pickthorn, L.B., 1990, K-Ar and fission-track ages of tuff beds at the Three Kids Mine, Clark County, Nevada: Implications for manganese mineralization: Isochron West, no. 56, p. 30-32.

Schiffman, P., Evarts, R.C., Williams, A.E., and Pickthorn, W.J., 1991, Hydrothermal metamorphism in oceanic crust from the Coast Range ophiolite of California: Fluid-rock interaction in a rifted island arc, in Peters, Tj., Nicolas, A., and Coleman, R. G., eds., Ophiolite Genesis and Evolution of Oceanic Lithosphere: Dordrecht, Kluwer Academic Publishers, p. 399-425.

Evarts, R.C., and Ashley, R.P., 1991, Preliminary geologic map of the Lakeview Peak quadrangle, Cowlitz County, Washington: U.S. Geological Survey Open-file Report 91-289, scale 1:24,000.

Evarts, R.C., and Ashley, R.P., 1992, Preliminary geologic map of the Elk Mountain quadrangle, Cowlitz County, Washington: U.S. Geological Survey Open-file Report 92-362, scale 1:24,000.

Evarts, R.C., and Ashley, R.P., 1993, Geologic Map of the Spirit Lake East quadrangle, Skamania County, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-1679, scale 1:24,000.

Evarts, R.C., and Ashley, R.P., 1993, Geologic Map of the Vanson Peak quadrangle, Lewis, Cowlitz, and Skamania Counties, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-1680, scale 1:24,000.

Evarts, R.C., and Ashley, R.P., 1993, Geologic Map of the Cowlitz Falls quadrangle, Lewis and Skamania Counties, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-1682, scale 1:24,000.

Evarts, R.C., and Ashley, R.P., 1993, Geologic Map of the Spirit Lake West quadrangle, Skamania and Cowlitz Counties, Washington: U.S. Geological Survey Geologic Quadrangle Map GQ-1681, scale 1:24,000.

Evarts, R.C., Gray, L.B., Turrin, B.D., Smith, J.G., and Tosdal, R.M., 1994, Isotopic and fission-track ages of volcanic and plutonic rocks and hydrothermal alteration in the Spirit Lake quadrangle and adjacent areas: Isochron West, no. 61, p. 25-47.

Evarts, R.C., and Bishop, K.R., 1994, Chemical data for Tertiary volcanic and intrusive rocks of the Spirit Lake 15-minute quadrangle, southern Washington Cascade Range: U.S. Geological Survey Open-File Report 93-686, 24 p..

Evarts, R.C., and Swanson, D.A., 1994, Geologic transect across the Tertiary Cascade Range, southern Washington, in Swanson, D.A., and Haugerud, R.A., eds., Geologic field trips in the Pacific Northwest: 1994 Geological Society of America Annual Meeting, v. 2, p. 2H1-2H31.

Brookstrom, A.A., Zientek, M.L., Box, S.E., Derkey, P.D., Elliott, J.E., Frishman, David, Ashley, R. P., Evarts, R.C., Stoeser, D. B., Moyer, L.A., Cox D.P., and Ludington Steve, 1997, Status and metal content of significant metallic mineral deposits in the Pacific Northwest; a contribution to the Interior Columbia Basin Ecosystem Management Project: U.S. Geological Survey Open-File Report 95-688, 99 p.

Evarts, R.C., Coleman, R.G., and Schiffman, Peter, 1999, The Del Puerto ophiolite: Petrology and tectonic setting, in Wagner, D.L., and Graham, S.A., eds., Geologic field trips in northern California: California Division of Mines and Geology Special Publication 119, p. 136-149.

Hagstrum, J.T., Swanson, D.A., and Evarts, R.C., 1999, Paleomagnetism of an east-west transect across the Cascade arc in southern Washington: Implications for regional tectonism: Journal of Geophysical Research, v. 104, p. 12,853-12,863.

Evarts, R.C., 2001, Geologic map of the Silver Lake quadrangle, Cowlitz County, Washington, U.S. Geological Survey Miscellaneous Field Studies Map MF-2371, scale, 1:24,000.

Evarts, Russell C., 2002, Geologic map of the Deer Island 7.5' quadrangle, Columbia County, Oregon and Cowlitz County, Washington, U.S. Geological Survey Miscellaneous Field Studies 2392, scale 1:24,000, http://geopubs.wr.usgs.gov/map-mf/mf2392/.

Evarts, Russell C., 2004, Geologic map of the Ariel quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific Investigations Map 2826, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2826).

Evarts, Russell C., 2004, Geologic map of the Ridgefield 7.5' quadrangle, Washington: U.S. Geological Survey Scientific Investigations Map 2834, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2844).

Evarts, Russell C., 2004, Geologic map of the Saint Helens quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific Investigations Map 2834, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2834).

Evarts, Russell C., 2004, Geologic map of the Woodland quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific
Investigations Map 2827, scale 1:24,000.
(http://pubs.usgs.gov/sim/2004/2827).

Evarts, Russell C., 2005, Geologic map of the Amboy quadrangle, Clark and Cowlitz Counties, Washington: U.S. Geological Survey Scientific Investigations Map 2885, scale 1:24,000.
(http://pubs.usgs.gov/sim/2005/2885).

Evarts, R.C., 2006, Geologic map of the Lacamas Creek quadrangle, Clark County, Washington: U.S. Geological Survey Scientific Investigations Map 2924, scale 1:24,000 [available on the World Wide Web at URL http://pubs.usgs.gov/sim/2006/2924/ ].

Evarts, R.C., 2006, Geologic map of the Yacolt quadrangle, Clark County, Washington: U.S. Geological Survey Scientific Investigations Map 2901, scale 1:24,000 [available on the World Wide Web at URL http://pubs.usgs.gov/sim/2006/2901/ ].

Evarts, Russell C., and O'Connor, Jim E., 2008, Geologic map of the Camas quadrangle, Clark County, Washington, and Multnomah County, Oregon: U.S. Geological Survey Scientific Investigations Map 3017, scale 1:24,000, 31 p. [http://pubs.usgs.gov/sim/3017/].

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