Placer scheelite and gold from alluvial sediments as indicators of the primary mineralization – examples from SW Poland

Authors

  • Stanisław Zbigniew Mikulski PIG-PIB
  • Jan Wierchowiec University of Warsaw

DOI:

https://doi.org/10.7306/gq.1107

Keywords:

gold, scheelite, placer, prospecting, Lower Silesia, Sudetes

Abstract

Detailed morphologic studies of detrital scheelite and gold grains from clastic Cenozoic sediments (alluvial and eluvial-colluvial) in two selected areas of the Lower Silesia region allowed to describe their specific features (size, roundness, lustre, and lack or remnants of primary intergrowths with other minerals). It allows estimating length of hydrodynamic transport and distance from the source area. Such features are also an important tool in determining the source of ore mineralization and to establish the parent area for detrital accumulations. Moreover, electron microprobe (EMPA) investigation of detrital gold allowed to recognized internal structure and chemical composition of placer gold grains. The grains commonly revealed zonal structures due to chemical supergene gold mobility recognized nearly in all studied pan-concentrate samples.

Author Biographies

Stanisław Zbigniew Mikulski, PIG-PIB

Mineral Resources Program

Jan Wierchowiec, University of Warsaw

Faculty of Geology

Downloads

Published

2013-06-27

Issue

Vol. 57 No. 3 (2013)

Section

Articles

License

Authors who publish with this journal agree to the following terms:
  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as this can lead to productive exchanges and earlier and more frequent citation of the published work (See The Effect of Open Access).