Strontium Isotope Stratigraphy: LOWESS Version 3: Best Fit to the Marine Sr‐Isotope Curve for 0–509 Ma and Accompanying Look‐up Table for Deriving Numerical Age
TLDR
An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr record and a revised look-up table (V3:10/99; available from jmcarthur@ucl.ac.uk) is presented in this article.Abstract:
An improved and updated version of the statistical LOWESS fit to the marine 87Sr/86Sr record and a revised look-up table (V3:10/99; available from j.mcarthur@ucl.ac.uk) based upon it enables straightforward conversion of 87Sr/86Sr to numerical age, and vice versa, for use in strontium isotope stratigraphy (SIS). The table includes 95% confidence intervals on predictions of numerical age from 87Sr/86Sr. This version includes the Triassic and Paleozoic record (0509 Ma) omitted from previous versions because of the paucity of adequate data at the time of preparation. We highlight differences between the previous versions of the table and the current version and discuss some aspects of the 87Sr/86Sr record that may have geological significance. We give examples of how the table can be used and where it has proven useful.read more
Citations
More filters
Book ChapterDOI
The Neogene Period
TL;DR: An Astronomically Tuned Neogene Time Scale (ATNTS2012) is presented in this article, as an update of ATNTS2004 in GTS2004, and the numerical ages are identical or almost so.
Journal ArticleDOI
Strontium Isotopes from the Earth to the Archaeological Skeleton: A Review
TL;DR: Strontium isotope analysis of archaeological skeletons has provided useful and exciting results in archaeology in the last 20 years, particularly by characterizing past human migration and mobility as mentioned in this paper.
Journal ArticleDOI
Chemostratigraphy of the Jurassic System: applications, limitations and implications for palaeoceanography
TL;DR: The use of one sedimentary component (marine organic carbon), one divalent transition metal substituted in carbonate (manganese), and two isotopic tracers: strontium-isotope ratios ( 87 Sr/ 86 Sr) and carbon-isotropic ratios (δ 13 C carb and δ 13C org ) in carbonates and in organic matter) has been used for the study of the Jurassic System as mentioned in this paper.
Journal ArticleDOI
COPSE: a new model of biogeochemical cycling over Phanerozoic time
TL;DR: In this article, a new model of biogeochemical cycling over Phanerozoic time is presented, which couples a feedback-based model of atmospheric O2 and ocean nutrients with a geochemical carbon cycle model (Berner, 1991, 1994), a simple sulfur cycle, and additional components.
Journal ArticleDOI
The geochemistry of carbonate diagenesis: The past, present and future
TL;DR: For example, in this article, the authors present a method for interpreting carbonate diagenesis of carbonate rocks by analyzing the δ18O value of any fluid inclusions or by measuring the temperature using a method such as the clumped isotope technique.
References
More filters
Journal ArticleDOI
Robust Locally Weighted Regression and Smoothing Scatterplots
TL;DR: Robust locally weighted regression as discussed by the authors is a method for smoothing a scatterplot, in which the fitted value at z k is the value of a polynomial fit to the data using weighted least squares, where the weight for (x i, y i ) is large if x i is close to x k and small if it is not.
Journal ArticleDOI
Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic
Steven C. Cande,Dennis V. Kent +1 more
TL;DR: An adjusted geomagnetic reversal chronology for the Late Cretaceous and Cenozoic is presented that is consistent with astrochronology in the Pleistocene and Pliocene and with a new timescale for the Mesozoic.
Book ChapterDOI
A revised Cenozoic geochronology and chronostratigraphy
TL;DR: Cande and Kent as mentioned in this paper presented a revised (integrated magnetobiochronologic) Cenozoic time scale (IMBTS) based on an assessment and integration of data from several sources.