Seawater Sr isotope variations through time: A procedure for constructing a reference curve to date and correlate marine sedimentary rocks

Field: Earth and Planetary Sciences (Physical Sciences)

Research Article| May 01, 1994 Seawater Sr isotope variations through time: A procedure for constructing a reference curve to date and correlate marine sedimentary rocks P. C. Smalley; P. C. Smalley 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Search for other works by this author on: GSW Google Scholar A. C. Higgins; A. C. Higgins 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Search for other works by this author on: GSW Google Scholar R. J. Howarth; R. J. Howarth 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Search for other works by this author on: GSW Google Scholar H. Nicholson; H. Nicholson 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Search for other works by this author on: GSW Google Scholar C. E. Jones; C. E. Jones 2Department of Geological Sciences, University of Michigan, 1006 C. C. Little, Building, Ann Arbor, Michigan 48109-1063 Search for other works by this author on: GSW Google Scholar N.H.M. Swinburne; N.H.M. Swinburne 3Department of Geology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada Search for other works by this author on: GSW Google Scholar J. Bessa J. Bessa 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Search for other works by this author on: GSW Google Scholar Author and Article Information P. C. Smalley 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom A. C. Higgins 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom R. J. Howarth 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom H. Nicholson 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom C. E. Jones 2Department of Geological Sciences, University of Michigan, 1006 C. C. Little, Building, Ann Arbor, Michigan 48109-1063 N.H.M. Swinburne 3Department of Geology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4M1, Canada J. Bessa 1British Petroleum, Research and Engineering Centre, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1994) 22 (5): 431–434. https://doi.org/10.1130/0091-7613(1994)022<0431:SSIVTT>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation P. C. Smalley, A. C. Higgins, R. J. Howarth, H. Nicholson, C. E. Jones, N.H.M. Swinburne, J. Bessa; Seawater Sr isotope variations through time: A procedure for constructing a reference curve to date and correlate marine sedimentary rocks. Geology 1994;; 22 (5): 431–434. doi: https://doi.org/10.1130/0091-7613(1994)022<0431:SSIVTT>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract A new curve of seawater 87Sr/86Sr variation through the past ∼450 m.y. enables dating and correlation of marine sedimentary rocks with quantifiable uncertainties. We discuss the method by which this curve was constructed. Strictly standardized 87Sr/86Sr ratios and biostrat igraphic data for ∼1300 87Sr/86Sr analyses of marine minerals were input into a data base. Objective criteria were used to assign each data point a reliability score. These scores were used as initial weights in a robust nonparametric regression (LOWESS) to obtain a curve of seawater 87Sr/86Sr variation with rigorous 95% confidence intervals for prediction of age uncertainty. Precise dating and stratigraphic correlation are feasible for much of the Phanerozoic. The main problem with future Sr isotope stratigraphy is likely to be sample quality; we discuss guidelines for sample selection. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.