Open AccessSphalerite from transgressive and regressive sediments of the Cambro-Silurian supercycle, Baltic Shield
Author(s) -
M. Lindstrom,
W. Vortisch
Publication year - 1978
Publication title -
bulletin of the geological society of denmark
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.674
H-Index - 28
eISSN - 2245-7070
pISSN - 0011-6297
DOI - 10.37570/bgsd-1978-27-04
Subject(s) - geology , pyrite , sedimentary rock , sphalerite , sediment , geochemistry , sedimentation , geomorphology , petrology
A sedimentary micro-vent in Lower Cambrian sandstone, and spar filled cephalopod shells in uppermost Wenlockian barite and dolomite carrying silty pelmicrosparite contain well-developed macroscopic ZnS0mineralization and very little pyrite. As controlling factors are suggested, good permeability, avail- ability in underlying sediment of finely dispersed organic matter with sorbed Zn, and low s2-- activity in the percolating water. Sedimentation was temporarily rather rapid.