Filters: Tags: {"type":"collection"} (X) > partyWithName: Oscarson, Robert (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts U.S. Geological Survey Categories Image (4) Tags (with Type=collection ) mount st. helens collection (4) View Results as: JSON ATOM CSV

Scanning electron microscope photograph of hypersthene crystal showing effects of abrasion. Washington. 1980. Album caption: Scanning electron microscope (SEM) photograph of hypersthene crystal showing effects of abrasion. Washington. 1980. Portion published as figure 327 in U.S. Geological Survey. Professional paper 1250. 1981. Handwritten notes on album caption: (Photo by Robert Oscarson) Index card unavailable. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Mount St. Helens Collection, Photographers, Volcanoes, Washington (WA), photo print Scanning electron microscope photograph of coating of a pure silica phase on a plagioclase feldspar grain. Washington. 1980. Album caption: Scanning electron microscope (SEM) photograph of coating of a pure silica phase (crystobalite or amorphous silica) on a plagioclase feldspar grain. Photographed using energy-dispersive X-ray fluorescence spectrometer. Washington. 1980. Published as figure 329 in U.S. Geological Survey. Professional paper 1250. 1981. Handwritten notes on album caption: (Photo by Robert Oscarson) Index card unavailable. Categories: Image; Tags: Mount St. Helens Collection, Photographers, Volcanoes, Washington (WA), photo print Scanning electron microscope photograph of unsized May 18 ash collected at Moscow, Idaho. Latah County, Idaho. 1980. Album caption: Scanning electron microscope (SEM) photograph of unsized May 18 ash collected at Moscow, Idaho. Latah County, Idaho. 1980. (Photo by Robert Oscarson) Published as figure 389 in U.S. Geological Survey. Professional paper 1250. 1981. Index card unavailable. Categories: Image; Tags: Latah County, Idaho, Mount St. Helens Collection, Photographers, Volcanoes, photo print Scanning electron microscope photograph of unsized May 18 ash, showing broken vesicle wall and adhering fine material. 1980. Album caption: Scanning electron microscope (SEM) photograph of unsized May 18 ash, showing broken vesicle wall and adhering fine material. Many fragments are less than 1μm across. 1980. Published as figure 390 in U.S. Geological Survey. Professional paper 1250. 1981. Handwritten notes on album caption: (Photo by Robert Oscarson) Index card unavailable. Categories: Image; Tags: Mount St. Helens Collection, Photographers, Volcanoes, photo print