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Explore Search: volcanic rock

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Chemical analyses and C.I.P.W. norms of nineteen volcanic rocks of the Ironwood area, Michigan

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Aeromagnetic anomalies related to remanent magnetism in volcanic rocks, Nevada Test Site

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Palaeomagnetism and potassium-argon ages of some volcanic rocks from the Galapagos Islands

Topic
Photograph of basalt rock

Igneous and metamorphic-rock aquifers

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Geology of the Precambrian rocks and rocks of the northern Harrat Hutaymah volcanic field, Baq'a quadrangle, sheet 27F, Kingdom of Saudi Arabia

Research
Mount Konocti viewed from Cinder Cone, Clear Lake Volcanic Field.

Geologic history of the Clear Lake region in the Northern California Coast Ranges

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Collage of USGS Maps.

Geologic map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon

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High-resolution 40Ar 39Ar chronology of Oligocene volcanic rocks, San Juan Mountains, Colorado

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Post-Early Miocene silicic volcanism in the northern Mojave Desert, California

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Modal analyses of selected Tertiary volcanic rocks from Nye and Lincoln counties, Nevada

map
Collage of USGS Maps.

Geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington

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Preliminary geochemistry of volcanic rocks from the McHugh Complex and Kachemak Terrane, southern Alaska

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Analytical results and sample locality map of volcanic rocks from the Pedregosa Mountains, Arizona

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Geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington

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Preliminary map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon

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Database for the geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington

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Magnetotelluric study of the thickness of volcanic and sedimentary rock in the Pullman-Moscow basin of eastern Washington

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Petrochemistry of rocks from the Mohon Mountains volcanic field, Yavapai and Mohave counties, Arizona

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Geophysical, geochemical, mineralogical, and enivronmental data for rock samples collected in a mineralized volcanic environment, upper Animas River watershed, Colorado

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Uranium- and thorium-rich volcanic rocks of the Sischu Creek area, Medfra Quadrangle, Alaska

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Dual-porosity analysis of conservative tracer testing in saturated volcanic rocks at Yucca Mountain in Nye County, Nevada

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Volcanic rocks and processes of the Mid-Atlantic Ridge rift valley near 36 ° 49′ N

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Post-Paleocene Tertiary rocks and Quaternary volcanic ash of the Wet Mountain Valley, Colorado

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Lead isotopes in volcanic rocks and possible ocean-floor thrusting beneath island arcs

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Zircon ages of felsic volcanic rocks in the upper Precambrian of the Blue Ridge, Appalachian mountains

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Petrography and petrology of volcanic rocks in the Mount Jefferson area, High Cascade Range, Oregon

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Selenium content of some volcanic rocks from western United States and Hawaiian Islands

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Igneous activity and related ore deposits in the western and southern Tushar Mountains, Marysvale volcanic field, west-central Utah

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Osmium isotope constraints on lower crustal recycling and pluton preservation at Lassen Volcanic Center, CA

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Effects of structure and volcanic stratigraphy on groundwater and surface water flow: Hat Creek basin, California, USA

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