eprintid: 10095852
rev_number: 20
eprint_status: archive
userid: 608
dir: disk0/10/09/58/52
datestamp: 2022-04-12 13:38:19
lastmod: 2022-04-12 13:38:19
status_changed: 2022-04-12 13:38:19
type: book_section
metadata_visibility: show
creators_name: McArthur, J
creators_name: Howarth, RJ
title: Strontium isotope stratigraphy
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F57
note: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
abstract: The 87Sr/86Sr value of Sr dissolved in the world's oceans has varied though time, which allows one to date and correlate sediments. This variation and its stratigraphic resolution is discussed and graphically displayed. INTRODUCTION The ability to date and correlate sediments using Sr isotopes relies on the fact that the 87Sr/86Sr value of Sr dissolved in the world's oceans has varied though time. In Fig. 7.1, we show this variation, plotted according to the time scale presented in this volume. More detail is given in Fig. 7.2, on which we plot both the curve of 87Sr/86Sr through time and the data used to derive it. Comparison of the measured 87Sr/86Sr of Sr in a marine mineral with a detailed curve of 87Sr/86Sr through time can yield a numerical age for the mineral. Alternatively, 87Sr/86Sr can be used to correlate between stratigraphic sections and sequences by comparison of the 87Sr/86Sr values in minerals from each (Fig. 7.3). Such correlation does not require a detailed knowledge of the trend through time of 87Sr/86Sr, but it is useful to know the general trend in order to avoid possible confusion in correlation near turning points on the Sr curve. Strontium isotope stratigraphy (SIS) can be used to estimate the duration of stratigraphic gaps (Miller et al., 1988), estimate the duration of biozones (McArthur et al., 1993, 2000, 2004) and stages (Weedon and Jenkyns, 1999), and to distinguish marine from non-marine environments (Schmitz et al., 1991; Poyato-Ariza et al., 1998).
date: 2005-01-01
date_type: published
publisher: Cambridge University Press
official_url: https://doi.org/10.1017/CBO9780511536045.008
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 56152
doi: 10.1017/CBO9780511536045.008
isbn_13: 9780521781428
lyricists_name: Howarth, Richard
lyricists_name: McArthur, John
lyricists_id: RJHOW29
lyricists_id: JMMCA98
actors_name: Howarth, Richard
actors_id: RJHOW29
actors_role: owner
full_text_status: public
place_of_pub: Cambridge, UK
pagerange: 96-105
isbn: 0521786738
book_title: A Geologic Time Scale 2004
edition: 1st
editors_name: Gradstein, F
editors_name: Ogg, J
citation:        McArthur, J;    Howarth, RJ;      (2005)    Strontium isotope stratigraphy.                    In: Gradstein, F and Ogg, J, (eds.) A Geologic Time Scale 2004. (pp. 96-105).   Cambridge University Press: Cambridge, UK.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10095852/6/Howarth_strontium-isotope-stratigraphy.pdf