Preface
New research on the development of high-resolution
palaeoenvironmental proxies from geochemical properties of
biogenic carbonates
A.L. Prendergast
a
, E.A.A. Versteegh
b
, B.R. Schöne
c
a
School of Geography, University of Melbourne, Melbourne Australia
b
School of Education, Rotterdam University of Applied Sciences, The Netherlands
c
Institute of Geosciences, University of Mainz, Germany
abstract article info
Available online 31 May 2017 Geochemical signatures from biogenic carbonates are being increasingly employed as palaeoenvironmental proxies.
In turn, many of these proxy archives including mollusc shells, corals, and otoliths have periodic growth structures,
which allow the reconstruction of chronologically constrained records of palaeoenvironmental variability at unpar-
alleled high temporal resolution. Studying the growth and chemistry of these periodic growth structures is known as
sclerochronology. Biogenic hard parts accumulate in geological or archaeological deposits, and can be directly dated
using radiometric and racemisation methods. They therefore offer the opportunity for high-resolution
palaeoenvironmental reconstructions across many time intervals, all over the globe. Such data are important for sev-
eral reasons: (1) understanding past climate and environmental change provides a means of contextualising current
and future climate change and ecological disturbance; (2) high-resolution palaeoenvironmental records are essen-
tial for constraining, testing and validating global and regional numerical climate models; (3) palaeoenvironmental
records from biogenic carbonates can provide an environmental framework from which to understand the behav-
ioural changes and interactions of peoples with their environment. However, inter and intra-species differences in
growth rate, physiology, and environmental response can cause variations in the chemical profiles of biogenic car-
bonates. Before geochemical data is employed for palaeoenvironmental reconstructions, it is thus necessary to ex-
amine modern specimens of the target species, or related taxa, to understand how geochemical variations are
influenced by local environmental conditions, kinetic and vital effects. This allows the generation of quantitative
and more reliable proxy records of environmental change.
This special issue brings together the latest research on palaeoenvironmental proxy development and validation in
biogenic carbonates. It includes studies on marine, freshwater and estuarine organisms (molluscs, corals and echi-
noderms), and on traditional as well as novel geochemical proxies. The papers presented here include in situ field
calibration studies, laboratory growth experiments as well as methodological studies into the effects of sampling
and pre-treatment. The geographical scope is broad, encompassing both the northern and southern hemispheres in-
cluding South Africa, South America, Australia, Asia, the Mediterranean Sea and the North Atlantic.
© 2017 Published by Elsevier B.V.
Keywords:
Sclerochronology
High-resolution proxy records
Mollusc
Bivalve
Gastropod
Echinoderm
Otolith
Coral
1. Palaeoenvironmental records from biogenic carbonate archives
Climate and environmental change is an increasingly pressing issue in
today's world, yet instrumental records of past climate are short, rarely
stretching back beyond 1860 CE (Jones et al., 2001, 2009). The analysis
of palaeoenvironmental proxies, preserved in various natural archives,
enables the reconstruction of climate and environmental conditions
prior to the instrumental record. The development of a broad range of
proxy records of climatic and environmental change is crucially important
for understanding patterns of past climate and environmental change at
various spatial and temporal scales (IPCC, 2013). Robust, quantitative
and high-resolution palaeoclimate and palaeoenvironmental data from
varied regions of the globe are needed to provide a framework of past
changes, to form baselines for environmental monitoring, and provide
data for numerical simulations that will allow climate modellers to better
predict anthropogenic impacts on the natural climate system (McCarroll,
2010; Schmidt et al., 2014; IPCC, 2013).
It is becoming increasingly evident that understanding past climate
and environmental change at high-resolution timescales (annual to
Palaeogeography, Palaeoclimatology, Palaeoecology 484 (2017) 1–6
E-mail addresses: amy.prendergast@unimelb.edu.au (A.L. Prendergast),
e.a.a.versteegh@hr.nl (E.A.A. Versteegh), schoeneb@uni-mainz.de (B.R. Schöne).
http://dx.doi.org/10.1016/j.palaeo.2017.05.032
0031-0182/© 2017 Published by Elsevier B.V.
Contents lists available at ScienceDirect
Palaeogeography, Palaeoclimatology, Palaeoecology
journal homepage: www.elsevier.com/locate/palaeo