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Figure caption: Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked "columnar" or "towery" manganese-calcite crystals lining a cavity at 40.3 m. April 28, 1978. No index card. Published as Figure 14-A in U.S. Geological Survey. Professional Paper 1054-B. 1984.
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Figure caption: Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked manganese-calcite crystals lining a cavity at 40.6 m. March 5, 1959. No index card. Published as Figure 14-B in U.S. Geological Survey. Professional Paper 1054-B. 1984.
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Figure caption: Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked rounded aggregate of rhombic manganese-calcite crystals from 40.6 m. No index card. Published as Figure 14-C in U.S. Geological Survey. Professional Paper 1054-B. 1984.
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Figure caption: Spring MHS-24. Pencil above small stick (circled) protruding from lower part of deposit is about 15 cm long. When first observed in September 1972, the height of the spring was exactly equal to the level of the stick. In September 1973, the cone was about 74 cm high, and by the following May, the date of this photograph, it had grown to a heigh of nearly 94 cm. Reddish-brown color is due to algae. Yellowish fibrous material surrounding the orifice of the spring is bacteria. No index card. Published as Figure 25 in U.S. Geological Survey. Bulletin 1444. 1978. Note: Markings on photograph described in the figure caption are on published photo only.
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Figure caption: Norrow Gauge Terrace. This feature is a fissure ridge that is intermittently active. No index card. Published as Figure 24 in U.S. Geological Survey. Bulletin 1444. 1978.
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Album caption and index card: Orange Spring Mound. The small cone-shaped deposit behind and to the right of the mound is Tangerine Spring. Yellowstone National Park, Wyoming. n.d. Published as Figure 16, U.S. Geological Survey. Bulletin 1444. 1978.
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Figure caption: Scanning electron micrograph showing a closer view of an acicular aggregate of parallel twinned bladed crystals of dachiardite from 98.1 m in drill core Y-6. Fibrous mordenite (m) and smectite (s) are later deposits (after Bargar and Beeson 1984). No index card. Published as Figure 6 in Dachiardite from Yellowstone National Park, Wyoming. Canadian Minerologist; 25: 475-483.
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Album caption and index card: Dense vertically-banded travertine. Specimen lines an old channel in a partially collapsed fissure ridge of the Highland Terrace area. Coin is 1.8 cm across. Yellowstone National Park, Wyoming. n.d. Published as Figure 6, U.S. Geological Survey. Bulletin 1444. 1978.
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Figure caption: Scanning electron micrograph showing granular cavity filling from core Y-6 at 40.3 m. Subhedral dipyramidal quartz grains are coated by smectite (identified by X-ray diffraction). December 3, 1981. No index card. Published as Figure 4 in U.S. Geological Survey. Professional Paper 1054-B. 1984.
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Figure caption: Scanning electron micrograph of analcime crystals from about 28 m in drill hole Y-3. A few scattered clusters of montmorillonite platelets were deposited later. Scale bar is 10 microns. No index card. Published as Figure 14 in Zeolites in Yellowstone National Park. The Mineralogical Record; 12: 29-38. Published as Figure 4 in Calcium zeolites in rhyolitic drill cores from Yellowstone National Park Wyoming. Zeolites '93 Conference Volume, D.W. Ming and F.A. Mumpton, (editors), International Committee on Natural Zeolites, Brockport, NY, 1995: 3-20.
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Figure caption: Photomicrograph of altered glass from 14.2 m depth in drill hole Y-2 (plane light). Perlitic texture is preserved by deposition of montmorillonite along concentric hydration cracks. Subsequent alteration consists of blocky or tabular intermediate heulandite crystals oritented perpendicular to clay-filled hydration cracks. No index card. Published as Figure 4 in Hydrothermal alteration in research drill hole Y-2, Lower Geyser Basin, Yellowstone National Park, Wyoming. American Mineralogist; 66 (5-6): 473–490. Published as Figure 2 in Zeolites in Yellowstone National Park. The Mineralogical Record; 12: 29-38. Published as Figure 2 in Calcium zeolites in rhyolitic drill cores from Yellowstone...
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Figure caption: Scanning electron micrograph of blocky stillbite (?) crystals (St) intergrown with tabular yugawaralite (y) and later smectite (s)L on a fracture surface at 73.2 m in drill core Y-3 (after Bargar and others, 1981). (Graphics on published photograph). No index card. Published as Figure 13 in U.S. Geological Survey. Professional Paper 1054-C. 1985.
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Figure caption: Scanning electron micrograph of broken surface of obsidian grain from 26.2 m in drill hole Y-2. Surface and interior of grain contain numerous shallow vesicles partly filled by clinoptilolite and montmorillonite. Scale bar is 30 microns. No index card. Published as Figure 3 in Hydrothermal alteration in research drill hole Y-2, Lower Geyser Basin, Yellowstone National Park, Wyoming. American Mineralogist; 66 (5-6): 473–490.
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Album caption and index card: One of the Grottos along the northwest flank of White Elephant Back Terrace. Yellowstone National Park, Wyoming. n.d. Published as Figure 18, U.S. Geological Survey. Bulletin 1444. 1978.
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Figure caption: Liberty Cap is a 14 m high extinct cone-shaped hot spring travertine deposit at Mammoth Hot Springs. Photograph by Keith E. Bargar. No index card. Published as Photograph 10 on the back cover of U.S. Geological Survey. Open-File Report 86-573. 1986.
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Photo caption: Bath Lake and Y-10 on map by Bargar and Muffler, 1975. MM00709 Collection description: Mammoth Hot Springs and location of thermal springs, 1972-May 1974. Yellowstone National Park, Wyoming. No index card.
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Figure caption: Scanning electron micrographs of bastnaesite spheres at 36. m. Montmorillonite coating bastnaesite sphere. Break in montmorillonite coating reveals bastnaesite (?) with minute granular appearance. No index card. Published as Figure 9-B in Hydrothermal alteration in research drill hole Y-11 from a vapor-dominated geothermal system at Mud Volcano, Yellowstone National Park, Wyoming in Wyoming Geological Association Guidebook. Thirty-Third Annual Field Conference. 1982.
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Album caption and index card: Step-like travertine terraces in the Mammoth Hot Springs area. Several large flat travertine deposits lie between Prospect Terrace on the right and Opal and Hymen Terraces on the left. Yellowstone National Park, Wyoming. n.d. (Photo by D.E. White). (Aerial view?). Published as Figure 1 in U.S. Geological Survey. Bulletin 1444. 1978.
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Figure caption: Liberty Cap. This feature is a prominent travertine cone (about 14 m high) deposited by a prehistoric spring. Devil's Thumb, a similar cone-shaped deposit is partly obscurred by tree in left background. No index card. Published as Figure 8 in U.S. Geological Survey. Bulletin 1444. 1978.
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Photo caption: Pinyon Terrace vapor vent area on map by Bargar and Muffler, 1975. MM00709 Collection description: Mammoth Hot Springs and location of thermal springs, 1972-May 1974. Yellowstone National Park, Wyoming. No index card.


map background search result map search result map Step-like travertine terraces in the Mammoth Hot Springs area. Yellowstone National Park, Wyoming. No date. Dense vertically-banded travertine. Yellowstone National Park, Wyoming. No date. The small cone-shaped deposit behind and to the right of Orange Spring Mound is Tangerine Spring. Yellowstone National Park, Wyoming. No date. One of the grottos along the northwest flank of White Elephant Back Terrace. Yellowstone National Park, Wyoming. No date. View of Liberty Cap in Mammoth Hot Springs. Yellowstone National Park. No date. Scanning electron micrograph of blocky stillbite crystals intergrown with tabular yugawaralite 73.2 m in drill core Y-3. Lower Geyser Basin, Yellowstone National Park, Wyoming. No date. Pinyon Terrace vapor vent area. Mammoth Hot Springs, Yellowstone National Park, Wyoming. Circa 1972-1974. Bath Lake and Y-10. Mammoth Hot Springs, Yellowstone National Park, Wyoming. Circa 1972-1974. View of Liberty Cap, a prominent travertine cone. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. No date. Narrow Gauge Terrace. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. No date. Spring MHS-24. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. 1974. Scanning electron micrograph showing granular cavity filling from core Y-6 at 40.3 m. Upper Firehole River, Yellowstone National Park, Wyoming. 1981. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked "columnar" or "towery" manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. 1978. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. 1959. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. No date. Scanning electron micrographs of bastnaesite spheres at 36. m. Montmorillonite coating bastnaesite sphere. Mud Volcano, Yellowstone National Park, Wyoming. No date. Photomicrograph of altered glass from 14.2 m depth in drill hole Y-2. Lower Geyser Basin, Yellowstone National Park, Wyoming. No date. Scanning electron micrograph of broken surface of obsidian grain from 26.2 m in drill hole Y-2. Yellowstone National Park, Wyoming. No date. Scanning electron micrograph showing a closer view of an acicular aggregate of parallel twinned bladed crystals of dachiardite. Yellowstone National Park, Wyoming. No date. Scanning electron micrograph of analcime crystals from about 28 m in drill hole Y-3. Yellowstone National Park, Wyoming. No date. View of Liberty Cap in Mammoth Hot Springs. Yellowstone National Park. No date. Step-like travertine terraces in the Mammoth Hot Springs area. Yellowstone National Park, Wyoming. No date. Dense vertically-banded travertine. Yellowstone National Park, Wyoming. No date. The small cone-shaped deposit behind and to the right of Orange Spring Mound is Tangerine Spring. Yellowstone National Park, Wyoming. No date. One of the grottos along the northwest flank of White Elephant Back Terrace. Yellowstone National Park, Wyoming. No date. Scanning electron micrograph of blocky stillbite crystals intergrown with tabular yugawaralite 73.2 m in drill core Y-3. Lower Geyser Basin, Yellowstone National Park, Wyoming. No date. Pinyon Terrace vapor vent area. Mammoth Hot Springs, Yellowstone National Park, Wyoming. Circa 1972-1974. Bath Lake and Y-10. Mammoth Hot Springs, Yellowstone National Park, Wyoming. Circa 1972-1974. View of Liberty Cap, a prominent travertine cone. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. No date. Narrow Gauge Terrace. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. No date. Spring MHS-24. Mammoth Hot Springs area, Yellowstone National Park, Wyoming. 1974. Scanning electron micrograph showing granular cavity filling from core Y-6 at 40.3 m. Upper Firehole River, Yellowstone National Park, Wyoming. 1981. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked "columnar" or "towery" manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. 1978. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. 1959. Photomicrograph and scanning electron micrographs of drill core Y-6 showing stacked manganese-calcite crystals. Upper Firehole River, Yellowstone National Park, Wyoming. No date. Scanning electron micrographs of bastnaesite spheres at 36. m. Montmorillonite coating bastnaesite sphere. Mud Volcano, Yellowstone National Park, Wyoming. No date. Photomicrograph of altered glass from 14.2 m depth in drill hole Y-2. Lower Geyser Basin, Yellowstone National Park, Wyoming. No date. Scanning electron micrograph of broken surface of obsidian grain from 26.2 m in drill hole Y-2. Yellowstone National Park, Wyoming. No date. Scanning electron micrograph showing a closer view of an acicular aggregate of parallel twinned bladed crystals of dachiardite. Yellowstone National Park, Wyoming. No date. Scanning electron micrograph of analcime crystals from about 28 m in drill hole Y-3. Yellowstone National Park, Wyoming. No date.