Litchfield syenite

Region East, Northeast
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area REE anomalies reported from analyses by West and others (2016). Presence of the Nb-rich mineral pyrochlore reported by Barker (1965).
Identified resources Unknown.
Production Unknown.
Status Unknown.
Estimated resources Unknown.
Geologic maps West and Ellenberger (2010), scale 1:24,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Alkalic intrusive complex.
Deposits None.
Evidence from mineral occurrences Potential from mineral system/deposit type.
Geochemical evidence Whole rock geochemistry (West and others, 2016).
Geophysical evidence Unknown.
Evidence from other sources Sweden produces REE from several cancrinite-bearing nepheline plutons.
Comments This pluton is known from glacial float and only a few outcrops. The edges are only poorly defined by airborne mag surveys.
Cover thickness and description Glacial till covers nearly 100% if the pluton.
Authors Dwight C. Bradley.
New data needs Airborne high resolution geophysical surveys to assist mapping.
Geologic mapping and modeling needs Geologic mapping after geophysics.
Geophysical survey and modeling needs Airborne high resolution mag and radiometric surveys to assist mapping.
Digital elevation data needs Lidar complete.