Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-26T07:24:09.763Z Has data issue: false hasContentIssue false
  • English
  • Français

Pliocene foraminifera and environments, Limon Basin of Costa Rica

Published online by Cambridge University Press:  19 May 2016

David T. Cassell  and
Barun K. Sen Gupta
David T. Cassell
Affiliation:
Department of Geology and Geophysics, Louisiana State University, Baton Rouge 70803
Barun K. Sen Gupta
Affiliation:
Department of Geology and Geophysics, Louisiana State University, Baton Rouge 70803
Get access Rights & Permissions [Opens in a new window]

Abstract

The sandstone facies of the Pliocene Rio Banano Formation of eastern Costa Rica contains benthic foraminifera indicative of an open marine, current-swept, neritic depositional environment. These sandstones and associated siltstones are placed in Zone N18 on the basis of overlapping ranges of planktonic foraminifera, particularly Globigerinoides obliquus extremus and G. ruber, and a short-ranging ostracode species, Radimella ovata. One hundred and eight species of benthic foraminifera have been identified from the formation. A multiple-group-component factor analysis of abundance distributions of several dominant or common species (Amphistegina gibbosa, Articulina mayori, Cassidulina laevigata, C. subglobosa, Cibicidoides floridanus, Elphidium discoidale, Hanzawaia concentrica, Pararotalia sarmientoi, Pseudononion basispinata, Quinqueloculina lamarckiana, Rosalina globularis, and Trifarina angulosa) in the type section aided in the recognition of three benthic foraminiferal assemblages related to environmental parameters. An open marine, shallow, sandy continental shelf environment is suggested by the first assemblage. This is considered the typical depositional environment of the unit. The second and the third assemblages, suggesting an inner littoral environment and the proximity to a reef, respectively, also indicate introduction of significant amount of transported material into the thanatotopes.

Type
Research Article
Information
Journal of Paleontology , Volume 63 , Issue 2 , March 1989 , pp. 146 - 157
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderberg, M. R. 1973. Cluster Analysis for Applications. Academic Press, New York, 359 p.Google Scholar
Anderson, T. W. 1984. An Introduction to Multivariate Statistical Analysis, 2nd ed.John Wiley and Sons, New York, 675 p.Google Scholar
Bold, W. A. Van Den. 1967. Miocene Ostracoda from Costa Rica. Micropaleontology, 13:75–86.Google Scholar
Bold, W. A. Van Den. 1988. Neogene paleontology in the northern Dominican Republic. Pt. 7. The Ostracoda. Bulletins of American Paleontology, 94(329), 105 p.Google Scholar
Bolli, H. M., and Saunders, J. 1985. Plankton Stratigraphy. Cambridge University Press, Cambridge, 1,032 p.Google Scholar
Cassell, D. T. 1986. Neogene foraminifera of the Limon Basin of Costa Rica. Unpubl. Ph.D. dissertation, Louisiana State University, Baton Rouge, 323 p.Google Scholar
Cassell, D. T., and Sen Gupta, B. K. 1989. Foraminiferal stratigraphy and paleoenvironments of the Tertiary Uscari Formation, Limon Basin, Costa Rica. Journal of Foraminiferal Research, 19:52–71.Google Scholar
Ellis, B. F., and Messina, A. R. 1940. Catalogue of Foraminifera. American Museum of Natural History, New York, 1940 and supplements.Google Scholar
Galli-Oliver, C. 1979. Ophiolite and island-arc volcanism in Costa Rica. Geological Society of America Bulletin, 90:444–452.Google Scholar
Harman, H. H. 1954. The square root method and the multiple group methods of factor analysis. Psychometrika, 19:39–55.Google Scholar
Harman, H. H. 1976. Modern Factor Analysis, 3rd ed.University of Chicago Press, Chicago, 487 p.Google Scholar
Loeblich, A. R. Jr., and Tappan, H. 1987. Foraminiferal Genera and Their Classification. Van Nostrand Reinhold, New York, 970 + 212 p.Google Scholar
Olsson, A. A. 1922. The Miocene of northern Costa Rica with notes on its general stratigraphic relations. Bulletins of American Paleontology, 39, 309 p.Google Scholar
Rivier, F. 1973. Contribución estratigrafica sobre la geología de la Cuenca de Limon, zona de Turrialba, Costa Rica. Publicaciones Geológicas del ICAITI, Guatemala City, 4:149–159.Google Scholar
Sandoval, L. F., Saenz, R., Acuna, J., Castro, J. F., Gomez, M. A., Lopez, A., Mederos, B., Monge, A., Vargas, J. E., Fernandez, T., Ulate, R. A., and Ramirez, C. L. 1982. Mapa geológico de Costa Rica, Escala 1:200.000. Dirección de Geología, Minas y Petróleo, Ministerio de Industria, Energía y Minas, San José, Costa Rica, 9 sheets.Google Scholar
SAS Institute Inc. 1985. User's Guide: Statistics. SAS Institute Inc., Cary, North Carolina, 956 p.Google Scholar
Sprechmann, P. 1984. Manual de geología de Costa Rica. Volumen 1. Estratigrafía. Editorial, Universidad de Costa Rica, San Jose, 320 p.Google Scholar
Taylor, G. 1975. The geology of the Limon area of Costa Rica. Unpubl. Ph.D. dissertation, Louisiana State University, Baton Rouge, 116 p.Google Scholar
Weyl, R. 1980. Geology of Central America. Gebruder Borntraeger, Berlin, 317 p.Google Scholar