Protocols
8 protocols
Accelerator mass spectrometry radiocarbon dating
Measurement of radiocarbon content in bulk sediments and density fractions using accelerator mass spectrometry after acid fumigation pretreatment to remove inorganic carbon.
Cosmogenic ¹⁰Be surface exposure dating
Standard method for determining exposure ages of rock surfaces using in-situ produced cosmogenic ¹⁰Be nuclides measured by accelerator mass spectrometry. Involves sample collection, quartz purificatio...
Geochemical analysis
Chemical analysis of igneous and meta-igneous rock samples to determine composition and petrogenesis. Results presented in tables and geochemical diagrams.
Geospatial data compilation
Integration of new and compiled geologic mapping data with geospatial analysis for neotectonic and hydrologic investigations.
Laser ablation ICPMS U-Pb dating
Laser ablation inductively coupled plasma mass spectrometry used for U-Pb detrital zircon geochronology analysis. Supports mapping and stratigraphic interpretations of Paleozoic sedimentary rocks.
Pollen analysis
Analysis of pollen from archaeological site sediments to reconstruct past vegetation.
SEM-cathodoluminescence
Scanning electron microscopy with cathodoluminescence imaging for characterizing zircon internal structure.
USGS Regional Aquifer System Analysis
Regional assessments of major aquifer systems providing quantitative assessments of water occurrence, movement, and availability. Includes classification of stratigraphic sequences and generation of m...
