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eroded volcanic complex, E Greenland
Aerial view of eroded Kap Broer Ruys, a volcanic center of early Eocene age (55-53Ma) at the southeast corner of Hold with Hope –near Myggbukta, east Greenland (230910-7)
Download Imagerock chip to thin section (pan)
Rock chip, thin section, and photomicrograph of a piece of sidewalk concrete. Note the myriad plagioclase crystals in the volcanic pebbles. (sidewk2412)
Download ImageDiscarded concrete and lake, Oregon
Discarded block of concrete on the shoreline of Dorena Reservoir, Oregon (IP2412-7131)
Download Imagephotomicrograph of basalt
photomicrograph of basalt pebble in concrete. Note the myriad plagioclase crystals and the brown-colored cement. (IP2412-7117c)
Download ImageAggregate and cement in concrete
Aggregate and cement in sidewalk concrete, Eugene, Oregon. (IP2406-5351)
Download ImageWestern and High Cascades, Oregon
Aerial view of Hills Creek Reservoir in Oregon’s deeply eroded western Cascades. Active volcanoes of the High Cascades on the horizon. (190925-273)
Download Imageflowing water on salt pan, Death Valley, CA
Small streams on salt flats, Death Valley National Park, California (240504-12)
Download Imagespit, made of salt, Death Valley, CA
Salt spit, consitructed of recently precipitated halite on the floor of Death Valley, flooded during Hurricane Hilary, August, 2023, Photo taken in January, 2024. The resulting lake was often called “Modern Lake Manly”. Death Valley National Park, California. (240108-102)
Download ImageFlooded salt pan, Death Valley, CA
Recently precipitated salt and flooded salt flats, Death Valley National Park, California. “Modern Lake Manly” –one of the effects of Hurricane Hillary of August, 2023. Photo taken in January, 2024. (240108-78)
Download ImageIsoclinal fold and cleavage, Alaska
Upright Isoclinal fold and slaty cleavage, SE Alaska (150617-37)
Download ImageIsoclinal fold and cleavage, Alaska
Upright horizontal Isoclinal fold and slaty cleavage, SE Alaska (150617-35)
Download ImageDeath Valley, CA
View south into Death Valley of Death Valley National Park, California. Note antiform on left side of photo. Keane Wonder Mine area (241117-62)
Download ImageLake-bed deposits
Tilted lake bed deposits of the Miocene-Pliocene Furnace Creek Formation, Death Valley National Park, California (241115-47)
Download ImageFacies change, alluvial fan to lake
Tilted Miocene-Pliocene sedimentary rock of the Furnace Creek Formation showing a facies change from lakebeds (center, bottom) upwards into alluvial fan deposits. Death Valley National Park, California (241115-46)
Download ImageFacies change, alluvial fan to lake (vertical)
Facies change in tilted sedimentary rock: lakebeds grading into alluvial fan deposits. Death Valley National Park, California (241115-41)
Download ImageDebris flow deposits
Tilted debris flow deposits in Miocene-Pliocene Furnace Creek Fm., Death Valley National Park, California. (241115-19)
Download ImageInverse grading in debris flow deposits
Tilted sheetflood and fine-grained debris flow deposits of the Miocene-Pliocene Furnace Creek Formation, Death Valley National Park, California. Note the inverse grading in some of the debris flow deposits. (241115-14)
Download ImageGraded bed
Graded bed in Miocene-Pliocene Furnace Creek Formation, Death Valley National Park, California. (241115-8)
Download ImageWineglass Canyon, Death Valley, CA
Wineglass canyon behind a fault-controlled mountain front at the Badwater Turtleback, Death Valley National Park, California. (241114-36)
Download ImageDepositional contact: ss on conglomerate
Sandstone deposited on conglomerate. Miocene Eagle Mountain Formation, Amargosa Valley, California. (241114-31)
Download ImageDepositional contact: ss on conglomerate
Sandstone deposited on conglomerate. Miocene Eagle Mountain Formation, Amargosa Valley, California. (241114-24)
Download Image
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