Open WL Archief (OWA)

Over het archief

Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

Basisinformatie over ‘Open Access to scholarly information'.

[ meld een fout in dit record ]

mandje (1): toevoegen | toon

---

one publication added to basket [220968]

The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain Schmitz, B.; Pujalte, V.; Eustoquio, M.; Monechi, S.; Orue-Etxebarria, X; Speijer, R.P.; Alegret, L.; Apellaniz, E.; Arenillas, I.; Aubry, M.P.; Baceta, J.I.; Berggren, W.A.; Bernaola, G.; Caballero, F.; Clemmensen, A; Dinarès-Turell, J.; Dupuis, C.; Heilmann-Clausen, C.; Hilario Orús, A.; Knox, R.; Martín-Rubio, M.; Ortiz, S.; Payros, A.; Petrizzo, M.R.; Sprong, J.; Steurbaut, E.; Thomsen, E. (2011). The Global Stratotype Sections and Points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages at Zumaia, Spain. Episodes 34(4): 220-243 In: Episodes. International Union of Geological Sciences: Ottawa, Ont.. ISSN 0705-3797, meer

---

Beschikbaar in	Auteurs
VLIZ: Open access 268988 [ download pdf ]

---

Trefwoord

Marien/Kust

Author keywords

Chronostratigraphy, Cyclostratigraphy, pelagic succession, sea-level fall

---

Auteurs		Top
Schmitz, B. Pujalte, V. Eustoquio, M. Monechi, S. Orue-Etxebarria, X Speijer, R.P., meer Alegret, L. Apellaniz, E. Arenillas, I.	Aubry, M.P. Baceta, J.I. Berggren, W.A. Bernaola, G. Caballero, F. Clemmensen, A Dinarès-Turell, J. Dupuis, C., meer Heilmann-Clausen, C.	Hilario Orús, A. Knox, R. Martín-Rubio, M. Ortiz, S. Payros, A. Petrizzo, M.R. Sprong, J., meer Steurbaut, E., meer Thomsen, E.

---

Abstract

The global stratotype sections and points for the bases of the Selandian (Middle Paleocene) and Thanetian (Upper Paleocene) stages have been defined in the coastal cliff along the Itzurun Beach at the town of Zumaia in the Basque Country, northern Spain. In the hemipelagic section exposed at Zumaia the base of the Selandian Stage has been placed at the base of the Itzurun Formation, ca. 49 m above the Cretaceous/ Paleogene boundary. At the base of the Selandian, marls replace the succession of Danian red limestone and limestone-marl couplets. The best marine, global correlation criterion for the basal Selandian is the second radiation of the important calcareous nannofossil group, the fasciculiths. Species such as Fasciculithus ulii, F. billii, F. janii, F. involutus, F.pileatus and F. tympaniformis have their first appearance in the interval from a few decimetres below up to 1.1 m above the base of the Selandian. The marker species for nannofossil Zone NP5, F. tympaniformis, first occurs 1.1 m above the base. Excellent cyclostratigraphy and magnetostratigraphy in the section creates further correlation potential, with the base of the Selandian occuring 30 precession cycles (630 kyr) above the top of magnetochron C27n. Profound changes in sedimentology related to a major sea-level fall characterize the Danian-Selandian transition in sections along the margins of the North Atlantic. The base of the Thanetian Stage is placed in the same section ca. 78 m above the Cretaceous/Paleogene boundary. It is defined at a level 2.8 m or eight precession cycles above the base of the core of the distinct clay-rich interval associated with the Mid-Paleocene Biotic Event, and it corresponds to the base of magnetochron C26n in the section. The base of the Thanetian is not associated with any significant change in marine micro-fauna or flora. The calcareous nannofossil Zone NP6, marked by the first occurrence of Heliolithus kleinpelli starts ca. 6.5 m below the base of the Thanetian. The definitions of the global stratotype points for the bases of the Selandian and Thanetian stages are in good agreements with the definitions in the historical stratotype sections in Denmark and England, respectively.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs

IMIS is ontwikkeld en wordt gehost door het VLIZ.