Premium
Exploration of Iron ore deposits in Patagonia. Insights from gravity, magnetic and SP modelling
Author(s) -
Christiansen Rodolfo,
Kostadinoff José,
Bouhier Julia,
Martinez Patricia
Publication year - 2018
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/1365-2478.12678
Subject(s) - geology , hematite , iron ore , outcrop , geochemistry , economic geology , mineralogy , earth science , geophysics , paleontology , metamorphic petrology , tectonics , geography , archaeology
The Sierra Grande region in northern Patagonia is considered the largest iron ore reserve in Argentina; however, the extension of the non‐outcropping deposits as well as the depth of the basins that contain them remains unknown. Utilizing 3D litho‐constrained inversion of gravity and magnetic data, we delimited an area with good prospects for iron ore deposits. In this region, high‐resolution magnetic and self‐potential profiles were acquired over the most important anomalies. Correlating both methodologies, it was possible to specify the possible existence of iron oxides (martite–hematite) in the form of 2D inclined sheets.