Samples taken off Jamestown, Saint Helena Island (South Atlantic Ocean)
Three dredgings samples taken off the coast of Saint Helena, reveal two micropalaeontological associations. One is an infralittoral association, characterized by Miliolina (essentially Quinqueloculina), and by Rotaliina with various species of Amphistegina. The other is a circalittoral association,...
| Published in: | Journal of Micropalaeontology |
|---|---|
| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
GSL Publishing
1989
|
| Subjects: | |
| Online Access: | https://doi.org/10.1144/jm.8.1.1 https://noa.gwlb.de/receive/cop_mods_00038446 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00038124/jm-8-1-1989.pdf https://jm.copernicus.org/articles/8/1/1989/jm-8-1-1989.pdf |
| Summary: | Three dredgings samples taken off the coast of Saint Helena, reveal two micropalaeontological associations. One is an infralittoral association, characterized by Miliolina (essentially Quinqueloculina), and by Rotaliina with various species of Amphistegina. The other is a circalittoral association, in which the following changes in family distribution may be observed: a decrease in Miliolina and others littoral species, and an increase in Discorbidae, Eponididae, Cibicididae, and Anomalinidae which indicate an increase in sea depth. The presence of relict Amphisteginidae might point to a Holocene stillstand of the transgressive sea. |
|---|