The GEOTEK multi-sensor core logger (MSCL) is a non-destructive method for high-resolution geophysical and geochemical data from sediment cores.
Among other sensors this instrument has a gamma detector for bulk density and porosity, utilizing a radioactive Cs-137 source.
These high-resolution scans help map paleoclimate variations and oceanography data through Earth's history by analyzing ocean floor beds to better understand past depositional environments and stratigraphy.