Abstract
Dark organic-rich concretions and bands occur in the white-grey sandstones, usually 1.5-2m below the copper-bearing shale, often in one horizon, spatially related to the discontinuous finer-grained, clay- and organic-rich dark bed. Three major types of the concretions (I – black and dark-gray; II – transitional two-colored: dark-gray and red;, III – red) have been described and their origin presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
