Oxfordian magnetostratigraphy of Britain and its correlation to Tethyan regions and Pacific marine magnetic anomalies

Ogg, James G.; Coe, Angela L.; Przybylski, Piotr A. and Wright, John K. (2010). Oxfordian magnetostratigraphy of Britain and its correlation to Tethyan regions and Pacific marine magnetic anomalies. Earth and Planetary Science Letters, 289(3-4) pp. 433–448.

DOI (Digital Object Identifier) Link:	http://dx.doi.org/10.1016/j.epsl.2009.11.031

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Abstract

A suite of 11 sections through the Oxfordian (Upper Jurassic) strata in the Dorset and Yorkshire regions of England and the Isle of Skye in Scotland yielded magnetic polarity patterns directly calibrated to the ammonite biostratigraphy of the Boreal and the Subboreal faunal provinces. The sections include the leading candidate for the global stratotype (GSSP) for the Callovian–Oxfordian stage boundary. The mean Oxfordian paleomagnetic pole derived from the Dorset and Yorkshire sections is 71.3°N, 172.6°E (δp = 4.2°, δm = 6.1°). The integrated magneto-biostratigraphic scale is consistent with results from the Sub-Mediterranean faunal province and extends the polarity pattern to the base of the Oxfordian. After adjusting for the estimated durations of ammonite subzones from cycle stratigraphy, the magnetostratigraphy confirms models for marine magnetic anomalies M30 through to M37, including some of the short-duration features recorded by deep-tow magnetic surveys in the western Pacific. The Callovian–Oxfordian boundary (base of Quenstedtoceras mariae Zone) occurs in a normal-polarity zone that is correlated to the youngest part of polarity chron M37n of this extension to the M-sequence.

Item Type:

Journal Article

2010 Elsevier

ISSN:

0012-821X

Project Funding Details:

Funded Project Name	Project ID	Funding Body
Not Set	Not Set	NERC
Not Set	Not Set	Elf Enterprise UK
Not Set	EAR-0719078	National Science Foundation
Not Set	Not Set	Amoco
Not Set	Not Set	Vastar
Not Set	Not Set	Conoco
Not Set	Not Set	Saga Petroleum