Interpretation of aeromagnetic data in the Jameson Land Basin, central East Greenland: Structures and related mineralized systems

Anaïs Brethes, Pierpaolo Guarnieri, Thorkild Maack Rasmussen, Tobias Erich Bauer

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

This paper provides a detailed interpretation of several aeromagnetic datasets over the Jameson Land Basin in central East Greenland. The interpretation is based on texture and lineament analysis of magnetic data and derivatives of these, in combination with geological field observations. Numerous faults and Cenozoic intrusions were identified and a chronological interpretation of the events responsible for the magnetic features is proposed built on crosscutting relationships and correlated with absolute ages. Lineaments identified in enhanced magnetic data are compared with structures controlling the mineralized systems occurring in the area and form the basis for the interpretations presented in this paper. Several structures associated with base metal mineralization systems that were known at a local scale are here delineated at a larger scale; allowing the identification of areas displaying favorable geological settings for mineralization. This study demonstrates the usefulness of high-resolution airborne magnetic data for detailed structural interpretation and mineral exploration in geological contexts such as the Jameson Land Basin.

Original languageEnglish
Pages (from-to)116-136
Number of pages21
JournalTectonophysics
Volume724-725
DOIs
Publication statusPublished - 31 Jan 2018

Keywords

  • Aeromagnetic data
  • East Greenland
  • Jameson Land Basin
  • Mineralization
  • Structures

Programme Area

  • Programme Area 4: Mineral Resources

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