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DISSOLUTION SUSCEPTIBILITY OF SOME PALEOGENE PLANKTONIC FORAMINIFERA FROM ODP SITE 1209 (SHATSKY RISE, PACIFIC OCEAN)

2008; Cushman Foundation for Foraminiferal Research; Volume: 38; Issue: 4 Linguagem: Inglês

10.2113/gsjfr.38.4.357

1943-264X

Maria Rose Petrizzo, Giovanni Leoni, Robert P. Speijer, Bianca De Bernardi, F. Felletti,

Geology and Paleoclimatology Research

Research Article| October 01, 2008 DISSOLUTION SUSCEPTIBILITY OF SOME PALEOGENE PLANKTONIC FORAMINIFERA FROM ODP SITE 1209 (SHATSKY RISE, PACIFIC OCEAN) Maria Rose Petrizzo; Maria Rose Petrizzo 3 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. 3Correspondence author. E-mail: mrose.petrizzo@unimi.it Search for other works by this author on: GSW Google Scholar Greta Leoni; Greta Leoni 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Search for other works by this author on: GSW Google Scholar Robert P. Speijer; Robert P. Speijer 2Department of Earth and Environmental Sciences, K.U.Leuven, Celestijnenlaan 200E, 3001 Leuven, Belgium. Search for other works by this author on: GSW Google Scholar Bianca De Bernardi; Bianca De Bernardi 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Search for other works by this author on: GSW Google Scholar Fabrizio Felletti Fabrizio Felletti 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Search for other works by this author on: GSW Google Scholar Author and Article Information Maria Rose Petrizzo 3 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Greta Leoni 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Robert P. Speijer 2Department of Earth and Environmental Sciences, K.U.Leuven, Celestijnenlaan 200E, 3001 Leuven, Belgium. Bianca De Bernardi 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. Fabrizio Felletti 1Department of Earth Sciences "Ardito Desio", University of Milano, via Mangiagalli 34, 20133 Milano, Italy. 3Correspondence author. E-mail: mrose.petrizzo@unimi.it Publisher: Cushman Foundation for Foraminiferal Research Received: 26 Feb 2008 Accepted: 30 Jun 2008 First Online: 03 Oct 2017 Online ISSN: 1943-264X Print ISSN: 0096-1191 © 2008 Journal of Foraminiferal Research Journal of Foraminiferal Research (2008) 38 (4): 357–371. https://doi.org/10.2113/gsjfr.38.4.357 Article history Received: 26 Feb 2008 Accepted: 30 Jun 2008 First Online: 03 Oct 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Maria Rose Petrizzo, Greta Leoni, Robert P. Speijer, Bianca De Bernardi, Fabrizio Felletti; DISSOLUTION SUSCEPTIBILITY OF SOME PALEOGENE PLANKTONIC FORAMINIFERA FROM ODP SITE 1209 (SHATSKY RISE, PACIFIC OCEAN). Journal of Foraminiferal Research 2008;; 38 (4): 357–371. doi: https://doi.org/10.2113/gsjfr.38.4.357 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 SocietyJournal of Foraminiferal Research Search Advanced Search Abstract A detailed, quantitative analysis of planktonic foraminiferal composition and shell fragmentation is presented for samples from Ocean Drilling Program Site 1209 (Leg 198, Shatsky Rise, Pacific Ocean) in a stratigraphic interval from the Paleocene/Eocene boundary, which is characterized by enhanced carbonate dissolution, to the base of the middle Eocene where no distinct dissolution layers are recorded. The aims are to evaluate whether the composition of the fossil Paleogene assemblage is representative of the original assemblage and to what extent it is influenced by carbonate dissolution. By comparing the absolute abundances of whole specimens and fragments of the three most common Paleogene genera (Morozovella, Acarinina and Subbotina), it is demonstrated that the percentage of foraminiferal fragments, identified to genus, is helpful in interpreting the paleoenvironment of fossil planktonic foraminiferal assemblages affected by marked carbonate dissolution. In addition, the absolute abundance of whole specimens and fragments of the three Paleogene genera collected at the Paleocene/Eocene boundary and in the Eocene reveal that, contrary to earlier suggestions, the spinose, asymbiotic, deep-dweller Subbotina is less resistant to dissolution than the muricate, symbiont-bearing, surface-dwellers Morozovella and Acarinina. Distinguishing between primary and taphonomic signals in Paleogene planktonic foraminiferal assemblages will be an important challenge to overcome in order to better constrain paleoecologic and paleoclimatic signals of global significance. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.