Foraminifera and Mollusca in surface sediments of the southeastern Labrador Shelf and Lake Melville, Canada

Abstract

Research Article| March 01, 1982 Foraminifera and Mollusca in surface sediments of the southeastern Labrador Shelf and Lake Melville, Canada G. VILKS; G. VILKS 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar B. DEONARINE; B. DEONARINE 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar F. J. WAGNER; F. J. WAGNER 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar G. V. WINTERS G. V. WINTERS 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information G. VILKS 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada B. DEONARINE 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada F. J. WAGNER 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada G. V. WINTERS 1Atlantic Geoscience Centre, Geological Survey of Canada, Dartmouth, Nova Scotia, B2Y 4A2, Canada Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1982) 93 (3): 225–238. https://doi.org/10.1130/0016-7606(1982)93<225:FAMISS>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation G. VILKS, B. DEONARINE, F. J. WAGNER, G. V. WINTERS; Foraminifera and Mollusca in surface sediments of the southeastern Labrador Shelf and Lake Melville, Canada. GSA Bulletin 1982;; 93 (3): 225–238. doi: https://doi.org/10.1130/0016-7606(1982)93<225:FAMISS>2.0.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 The distribution of major species of benthic foraminifera collected from the upper portion of box cores and piston core-tops follows several major trends. Arenaceous assemblages occur in the liquid surface layer of silty mud, which is normally missed by the piston corer. Below this layer, the inner-shelf assemblages are dominated by calcareous species, such as Islandiella helenae Feyling-Hanssen and Buzas and Elphidium excavatum (Terquem) forma alba Feyling-Hanssen. In Lake Melville, the surface and subsurface layers have similar faunas, dominated by Reophax fusiformis (Williamson) and Saccammina atlantica (Cushman).In comparison with other regions, the assemblages show very close affinity with Hudson Bay and Gulf of St. Lawrence faunas. The depth range of foraminiferal and molluscan species on the Labrador Shelf is greater than elsewhere. For example, in the Labrador Shelf waters, Ammotium cassis (Parker) is common in waters as deep as 360 m. It is considered to be a coastal species along the western North Atlantic to the south, and in the Gulf of St. Lawrence, it is found most commonly in depths of < 10 m. The occurrence of A. cassis in deeper water on the Labrador Shelf is associated with the relatively high content of suspended particulate matter along the bottom of the deeper basins. 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.