HIGH RESOLUTION VS. STANDARD RESOLUTION: How an increase in spectral resolution using a field portable spectrometer affects quality of data – a case study on Nickel exploration

Shelton Pieniazek, Lori1

1Spectral Evolution, United States

Standard resolution of a field portable spectrometer at 3nm (UV), 8nm (VIS) and 6nm(NIR) has been used successfully in the geological remote sensing and mining industry for a variety of applications. Alteration mapping has been key for finding different mineral assemblages that indicate an area of interest. Using a higher resolution field spectrometer has proven to be beneficial in understanding and identifying new features in a variety of different mineral groups and subgroups.

A study was conducted using three different field spectrometers, each with different resolutions. As you increase resolution, features that are not visible with a standard resolution spectrometer appear in all three ranges (UV,VIS,NIR) thus yielding a better understanding of alteration changes and geochemical conditions


Mrs. Lori Shelton Pieniazek is the Geologist for Spectral Evolution. She received her degree in Geosciences from Tennessee Technological University. Her main focus is on applying spectral geology applications to the mining and geological remote sensing industries.

About the GSA

The Geological Society of Australia was established as a non-profit organisation in 1952 to promote, advance and support Earth sciences in Australia.

As a broadly based professional society that aims to represent all Earth Science disciplines, the GSA attracts a wide diversity of members working in a similarly broad range of industries.