GSSP for Lutetian Stage
Definition:The base of the Lutetian Stage is located at 167.85m in the Gorrondatxe sea-cliff section, Basque Country, northern Spain. The GSSP is defined in a dark marly level and coincides with the first appearance of calcareous nannofossil Blackites inflatus.
Location:The GSSP is located at 167.85m in the Gorrondatxe sea-cliff section, Basque Country, northern Spain, just northwest of Bilbao, at a latitude of 43Â°22â€™46.47â€™â€™N and a longitude of 3Â°00â€™51.61â€™â€™W.
Sedimentology:The base of the Lutetian Stage lies in a sequence of alternating pelagic limestones and marls, with turbidites commonly being just a few millimeters thick. The GSSP is defined in a dark marly level, 2.15 m below a prominent 15 cm thick turbidite at meter 170.
Primary Markers:The first appearance of calcareous nannofossil Blackites inflatus.
Secondary Markers:Calcareous nannofossils:
The first occurrence of Nannotetrina cristata is 115 kyr younger than the GSSP level.
The C22/C21r magnetic reversal is 39 precession-related mudstone-marl couplets below the GSSP.
Correlation Events:Calcareous nannofossil FAD of Blackites inflatus
Notes on Derivation of Age:Calibrated magnetic anomaly scale relative to base-Miocene and C24n
Molina, E., Alegret, L., Apellaniz, E., Bernaola, G., Caballero, F., Dinarès-Turell, J., Hardenbol, J., Heilmann-Clausen, C., Larrasoanã, J.C., Luterbacher, H.P., Monechi, S., Ortiz, S., Orue-Etxebarria, X., Payros, A., Pujalte, V., Rodríguez-Tovar, F.J., Tori, F., Tosquella, J., Uchman, A., 2011. The Global Stratotype Section and Point (GSSP) for the base of the Lutetian Stage at the Gorrondatxe section, Spain. Episodes 34, 86-108.
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