Filters: Tags: Glacier Bay National Park (X)4 results (139ms)
In 2016, with National Park Service support, several previously undated plutons were sampled in Glacier Bay National Park and Preserve along the west side of Glacier Bay for age determinations. Geochronologic analyses were conducted to determine the ages of the plutonic rocks in the Glacier Bay area. Five samples were collected by Frederic Wilson (USGS Alaska Science Center), from Dundas Bay and Geikie Inlet, and dated by laser ablation-inductively coupled plasma mass spectrometry U-Pb methods. The dates obtained ranged from approximately 112-118 Ma, indicating that these samples are younger than the Saint Elias plutonic suite (ca. 160 Ma-130Ma), which runs along the same trend as the sampled rocks to the south.
This shapefile is the official boundary of the Southeast Alaska Fish Habitat Partnership. The shapefile was developed in 2014 to reflect the boundary as defined by the Southeast Alaska Fish Habitat Partnership, a recognized Fish Habitat Partnership (FHP) of the National Fish Habitat Partnership.
Pre- and post-event digital elevation models generated from high-resolution stereo satellite imagery of the 2016 Lamplugh rock avalanche in Glacier Bay National Park and Preserve, Alaska
The use of high-resolution remotely sensed imagery can be an effective way to obtain quantitative measurements of rock-avalanche volumes and geometries in remote glaciated areas, both of which are important for an improved understanding of rock-avalanche characteristics and processes. We utilized the availability of high-resolution (~0.5 m) WorldView satellite stereo imagery to derive digital elevation data in a 100 km2 area around the 28 June 2016 Lamplugh rock avalanche in Glacier Bay National Park and Preserve, Alaska. We used NASA Ames Stereo Pipeline, an open-source software package available from NASA, to produce one pre- and four post-event digital elevation models (DEMs) of the area surrounding the Lamplugh...
Album caption: Prince William Sound - Port Wells district - Barry Arm. 2:00 P.M., rainy, very dull, 8 stop, 1-5 sec. Panorama of the Barry Glacier front. This view shows junction of Barry and Cascade glaciers. October 5, 1914. Handwritten notes on album caption: Wells, district, Alaska Gulf region. Pl. 6-B, PP 98, 1917. Index card: Johnson, B. L. 589: Cascade Glacier at its junction wiht Barry Glacier. Glaciers are almost separated, and Cascade Glacier has begun to retreat up the fiord wall. From deck of a launch, Prince William Sound, Wells district, Alaska Gulf region, Alaska. October 5, 1914. Published as plate 6-B in U. S. Geological Survey Professional paper 98, 1917. Original index card: Johnson,...