Data

This data package contains four tables related to helminths and bacteria identified in the guts of North American shrews (Genus: Sorex). Tables include: two tables of specimen information about each shrew, such as species, museum collection identification, and NCBI accession IDs; one table of NBCI GenBank accession numbers of previously identified DNA sequences used in this study to design the hel

This data set contains 40Ar/39Ar isotopic data and ages for rocks from the Yukon-Tanana upland of eastern Alaska and the northern Aleutian Range of south-central Alaska. The entire sample suite was collected as part of geological mapping and supporting geochemical and geochronological analysis were conducted from 2013 to 2019 by the Mineral Resources Program of the U.S. Geological Survey (USGS). L

These data describe an exercise in which known age and sex class of 100 Barrow's goldeneyes (Bucephala islandica), determined by expert examination bursa and plumage, was contrasted with age and sex classes estimated from photos by trained observers.

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 G

This data set provides low-temperature thermochronometric data from 16 rock samples collected from the Revelation Mountains area in western Alaska Range. These data are from three different analyses used to estimate cooling ages: 1) apatite (U-Th)/He, 2) zircon (U-Th)/He, and 3) apatite fission-track.

This data set contains 3 tables containing uranium-lead (U-Pb) isotopic data and crystallization ages of zircon and titanite from igneous, metamorphic, and sedimentary rocks collected from the Yukon-Tanana upland of eastern interior Alaska between 2013 and 2019. Bulk samples of igneous and metamorphic rocks were processed into concentrated mineral separates of zircon and (or) titanite in USGS labo

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 20 satellite transmitters attached to Thick-billed murres on their breeding range in arctic and western Alaska, 1995-1996. Five data files are included in the "rawData" folder of this data package. Two data files (with identical co

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 28 satellite transmitters attached to Common murres on their breeding range in arctic and western Alaska, 1994-1996. Five data files are included in the "rawData" folder of this data package. Two data files (with identical content)

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 2 satellite transmitters attached to Red-faced cormorants on Attu Island Alaska, 2006. Five data files are included in the "rawData" folder of this data package. Two data files (with identical content) contain the raw Argos DIAG (D

This metadata document describes the data contained in the "rawData" folder of this data package. This data package contains all data collected by the Argos System from 8 satellite transmitters attached to Pelagic cormorants on Middleton and Attu Islands, Alaska, 2000-2006. Five data files are included in the "rawData" folder of this data package. Two data files (with identical content) contain th

This dataset presents boundaries and attributes of mapped geomorphic features in the lower 7.5 kilometers of the Taiya River valley bottom in and near Klondike Gold Rush National Historical Park near Skagway, Alaska. Geomorphic surfaces and off-main-stem channels were delineated from 2003 lidar elevation data and updated using 2017 and 2018 aerial orthophotographs at eroding riverbanks, such that

This dataset includes soil data collected from various landscapes adjacent to thaw ponds on the North Slope of Alaska between 2012 and 2018. The landscapes include ice-rich polygonal ground found on basin uplands, as well as bluffs and lake edges. At each site a visual description of soil type and texture was performed, and a permafrost probe was used to determine a 'depth to refusal'. Given that