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Owens R Gorge and Bishop Tuff, CA
Owens River Gorge, SE California, eroded through the 767,000 year old Bishop tuff. Note the talus cone that partially blocks the river. (241109-57)
Download ImageBishop Tuff, California
Bishop Tuff exposed in the walls of the Owens River Gorge. The tuff erupted 767,000 years ago from the Long Valley Caldera, California. Note the rock fall deposit that partially blocks the river. Note also the radial columnar jointing and the small hill on the rim that marks a fossil steam vent! (241109-55)
Download ImageRockfall mitigation on highway, California
Fencing to protect a highway from rockfall, eastern California (241109-12)
Download ImageAltered volcanic rock, Nevada
Iron-oxide staining in altered volcanic rock, NW Nevada (241108-16)
Download ImageKlamath River and Mt. McLoughlin, OR
Mount McLoughlin, a Cascade stratovolcano, and Klamath River, southern Oregon (241108-7)
Download ImageAlluvial fan deposits, DV, CA (Vertical)
Tilted alluvial fan deposits of the Miocene-Pliocene Furnace Creek Formation and moon, Death Valley National Park, California. Most of the beds are debris flow deposits. (241117-3)
Download ImageAlluvial fan deposits, Death Valley, CA
Tilted alluvial fan deposits of the Miocene-Pliocene Furnace Creek Formation and moon, Death Valley National Park, California. Most of the beds are debris flow deposits. (241117-2)
Download ImageCross-bedding in Triassic sandstone
Cross-bedding in Triassic New Haven Arkose, Connecticut (230819-10)
Download ImageNew Haven Arkose
Close-up image of Triassic sandstone: New Haven Arkose, Connecticut (230819-17)
Download ImageNew Haven Arkose
Close-up image of Triassic sandstone: New Haven Arkose, Connecticut (230819-24)
Download ImageTriassic New Haven Arkose
Triassic sandstone: New Haven Arkose, Connecticut (230819-26)
Download ImageStream erosion of granitic rock, New Hampshire
Stream erosion of granitic rock: the Basin along the Pemigewasset River, Franconia Notch State Park, New Hampshire. The granite is part of the Jurassic Conway Granite. (IP2409-6447)
Download ImageDevonian-age granite, Vermont
Close-up of Devonian granite from near Barre, Vermont (241006-7)
Download Image241004-62
Migmatite gneiss and pegmatite bodies in Devonian Littleton Formation, New Hampshire (241004-62)
Download ImageIntruded migmatite (vertical)
Pegmatite intruding migmatite gneiss, New Hampshire. Migmatite was originally the Silurian Rangeley Formation (241004-54)
Download ImageFolded migmatite gneiss, N Hampshire
Folded migmatite gneiss, New Hampshire. Migmatite was originally the Silurian Rangeley Formation (241004-51)
Download Imagepegmatite intruding migmatite, N Hampshire
Pegmatite dikes intruding migmatite gneiss, New Hampshire. Migmatite was originally the Silurian Rangeley Formation. (241004-42)
Download ImageJackson Falls and granitic rock, New Hampshire
Jackson Falls, New Hampshire. Bedrock is Mesozoic granitic rock (241004-27)
Download ImageMegacrystic granite, New Hampshire
Large feldspar crystals in Jurassic granite (Conway Granite), New Hampshire (241004-21)
Download Image
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