A revised and improved age model for the middle Miocene part of IODP Site U1318 (Porcupine Basin, offshore southwestern Ireland)

Integrated Ocean Drilling Program Leg 307 Site U1318 is one of the few relatively complete middle Miocene drillcores from the North Atlantic (Porcupine Basin, offshore southwestern Ireland). Using benthic foraminiferal stable carbon and oxygen isotopes, the existing age model for Site U1318 was impr...

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Bibliographic Details
Published in:Geological Magazine
Main Authors: Quaijtaal, Willemijn, Tesseur, Steven, Donders, Timme H, Claeys, Philippe, Louwye, Stephen
Format: Article in Journal/Newspaper
Language:English
Published: 2018
Subjects:
Earth and Environmental Sciences
North Atlantic
isotope stratigraphy
magnetostratigraphy
dinoflagellate cysts
Neogene
GLOBAL SEA-LEVEL
DINOFLAGELLATE CYST
OCEAN CIRCULATION
CARBON ISOTOPES
OXYGEN
SEQUENCES
HISTORY
RECORDS
EVENTS
Online Access:https://biblio.ugent.be/publication/8507028
http://hdl.handle.net/1854/LU-8507028
https://doi.org/10.1017/s0016756816001278
https://biblio.ugent.be/publication/8507028/file/8577325
Description
Summary:Integrated Ocean Drilling Program Leg 307 Site U1318 is one of the few relatively complete middle Miocene drillcores from the North Atlantic (Porcupine Basin, offshore southwestern Ireland). Using benthic foraminiferal stable carbon and oxygen isotopes, the existing age model for Site U1318 was improved. The stable isotope record displays globally recognized isotope events, used to revise the existing magnetostratigraphy-based age model. Two intervals contained misidentified magnetochrons which were corrected. The sampled interval now has a refined age of 12.75-16.60 Ma with a temporal resolution of c. 29 ka.

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