Protocols

Measurement of radiocarbon content in bulk sediments and density fractions using accelerator mass spectrometry after acid fumigation pretreatment to remove inorganic carbon.

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...

Field mapping of volcanic rocks in thirteen 7.5-minute quadrangles combined with petrologic studies and high-resolution age determinations. Includes several hundred new chemical analyses and age deter...

Laser ablation inductively coupled plasma mass spectrometry used for U-Pb detrital zircon geochronology analysis. Supports mapping and stratigraphic interpretations of Paleozoic sedimentary rocks.

Regional assessments of major aquifer systems providing quantitative assessments of water occurrence, movement, and availability. Includes classification of stratigraphic sequences and generation of m...

Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. This dataset presents latitude, longitude, altitude, and magnetic-f...