Abstract
Research Article| November 01, 1990 Early Cambrian coastal dunes at Vassbo, Sweden BILL WALLIN BILL WALLIN 1Department of Geology and Geochemistry, Stockholm University, S-106 91 Stockholm, Sweden Search for other works by this author on: GSW Google Scholar Author and Article Information BILL WALLIN 1Department of Geology and Geochemistry, Stockholm University, S-106 91 Stockholm, Sweden Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1990) 102 (11): 1535–1543. https://doi.org/10.1130/0016-7606(1990)102<1535:ECCDAV>2.3.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation BILL WALLIN; Early Cambrian coastal dunes at Vassbo, Sweden. GSA Bulletin 1990;; 102 (11): 1535–1543. doi: https://doi.org/10.1130/0016-7606(1990)102<1535:ECCDAV>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Coastal eolian deposits have been distinguished in the Gröveldalen Member of the Vassbo Formation (Lower-Middle Cambrian) at Vassbo, Sweden. The sandstone is characterized by abundant cross-bedding and is divided into two parts, a lower medium-grained part (lower facies) and an upper fine-grained part (upper facies). The lower part, which is dominated by trough cross-bedding, is interpreted as a nearshore aqueous deposit of a seaward-prograding beach. The upper part, containing large-scale planar cross-bedding, translatent climbing ripples, and sandflow toes, represents eolian deposits. Compared to the medium-grained facies, the fine-grained facies is characterized by negative skewness and better sorting. Additional evidence supporting an eolian origin of the upper facies is a wind-abraded pattern, characterized by "upturned plates," which have been observed on the quartz grain surfaces from the same facies. Structural as well as textural parameters, together with the uniform paleocurrent pattern, suggest deposition of coastal dunes within the interpreted Cambrian trade-wind belt in a Southern Hemisphere position of the Baltic Shield. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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