Martínez, S;
Ramos, MIF;
McArthur, JM;
Del Río, CJ;
Thirlwall, MF;
(2017)
Late Burdigalian (Miocene) age for pectinids (Mollusca-Bivalvia) from the Pirabas Formation (northern Brazil) derived from Sr-isotope (87 Sr/86 Sr) data.
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen
, 284
(1)
pp. 57-64.
10.1127/njgpa/2017/0650.
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Abstract
The faunas of the highly fossiliferous Pirabas Formation belong to the southern part of the biogeographical unit known as "Neogene Tropical America". This unit developed prior to the closure of the Central American Seaway by the Isthmus of Panama. Until now, the age of the Pirabas Formation was inferred only from biostratigraphy. The Sr-isotope (87 Sr/86 Sr) values of pectinid shells from the Pirabas Formation show that most parts of this unit were deposited during the Late Burdigalian (about 16-17 Ma). This result does not contradict biostratigraphic data and it constrains the age of the Pirabas Formation more tightly than do previous estimates of age, it for future, more precise biogeographical comparisons.
| Type: | Article |
|---|---|
| Title: | Late Burdigalian (Miocene) age for pectinids (Mollusca-Bivalvia) from the Pirabas Formation (northern Brazil) derived from Sr-isotope (87 Sr/86 Sr) data |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1127/njgpa/2017/0650 |
| Publisher version: | http://doi.org/10.1127/njgpa/2017/0650 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | 87 SR/86 SR, BRAZIL, MIOCENE, PECTINOIDEA, PIRABAS FORMATION, SIS, STRONTIUM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1554629 |
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