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Found 661 dataset(s) matching "Age determinations".
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Measurement of skull ossification patterns is a standard method for aging various mammalian species and has been used to age Russian, Californian, and Alaskan sea otter populations. Cementum...
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Gene array data files compared gene expression profiles in liver samples from young (21-45 years) and old (69+ years) men and women to determine changes in the expression of xenobiotic metabolism...
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Data on breeding status of adult common murre specimens collected at sea near colonies in the Gulf of Alaska and Bering Sea during summers of 1991-1996. Adult age status determined from plumage...
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This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida, Colorado. The valley is structurally...
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These data are derived from the Pleistocene Sacarosa tephra-fall deposit (TFD) which erupted from Misti volcano, Arequipa, southern Peru. The deposit represents a major eruption of Misti and...
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The Mississippi River Valley alluvial aquifer (MRVA) overlies and is bounded by several regional aquifers that make up the Mississippi embayment aquifer system (MEAS) in the central United States....
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Faults in the study area are commonly coated with synkinematic calcite, and we use laser ablation inductively-coupled mass spectrometry (LA-ICP-MS) U-Pb geochronology to determine the timing of...
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From 2017-2023, a total of 934 Grass Carp were removed from the Lake Erie basin and tributaries, and 159 were captured in the Mississippi, Missouri, and Lamine Rivers within the state of Missouri...
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This U.S. Army Corps of Engineers (USACE)-funded study that began in 2005 compares the SARs of PIT tagged juvenile hatchery Snake River fall Chinook that are split into two groups, released above...
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<p>This data package was produced by researchers working on the Shortgrass Steppe Long Term Ecological Research (SGS-LTER) Project, administered at Colorado State University. Long-term datasets...
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Garnet Lu-Hf ages of the schist of Moores Station Formation (112.8 ± 6.9 Ma) and a cross-cutting garnetiferous felsic dike (99.3 ± 2.0 Ma) are the main contributions of this dataset. Ages are...
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This dataset comprises three tables containing infrared stimulated luminescence (IRSL) ages and related data from samples collected at seven terrace sites along the Totatlanika River in central...
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This dataset contains major and trace element geochemical data and 40Ar/39Ar isotopic data and ages for rock samples collected during 2016 fieldwork in Glacier Bay National Park and Preserve. The...
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This dataset contains the samples from the posterior distribution for the parameters that relate Pacific cod (Gadus macrocephalus) length-at-age 1.5 (L1.5) to sea surface temperature, and...
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This dataset is comprised of two tables with age data along the Fairweather Fault in Glacier Bay National Park. The tables are: (1) radiocarbon dates analyzed at the National Ocean Sciences...
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We analyzed historical aerial photography and used dendrochronology to quantify long-term spatial and temporal patterns of narrowing and vegetation expansion, including native cottonwood (Populus...
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This dataset contains polygons representing deposits of hyaloclastic debris that were generated between about 3.5 and 3.0 million years ago when a series of basaltic lava flows entered the canyon...
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Radiogenic isotopes of strontium and uranium (87Sr/86Sr and 234U/238U) are useful tracers of water-rock interactions. Sr isotopic signatures in groundwater are derived by dissolution or exchange...
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This dataset is associated with a journal article "The Role of Organic Matter Diversity on the Re-Os Systematics of Organic-rich Sedimentary Units: Insights into the Controls of Isochron Age...
