Research news on aeroradiometric surveying

Aeroradiometric surveying is a geophysical method that measures natural or induced gamma radiation from rocks and soils using detectors mounted on aircraft, typically fixed-wing or helicopters, to map spatial variations in radioelement concentrations over large areas. High-sensitivity scintillation or semiconductor detectors record gamma-ray spectra in flight, which are corrected for altitude, aircraft background, cosmic and radon contributions, and then spectrally decomposed to estimate equivalent concentrations of potassium, uranium, and thorium. The method is widely used for geological mapping, mineral and uranium exploration, regolith and soil characterization, and environmental radiation assessments due to its high coverage efficiency and ability to detect subtle lithological and alteration contrasts.

Managing risks when intervening to help coral reefs

A new tool to help scientists and reef managers consider the ecological risks of different coral reef interventions around the world has been developed by researchers from the Australian Institute of Marine Science (AIMS). ...

Hornets in town: How top predators coexist

In urban environments, competing hornet species coexist by specializing on different prey species. This finding was made possible by pioneering DNA analysis of hornet larvae's gut contents and shows that cities are fascinating ...