Alexandra S. Rodler

Alexandra S. Rodler
Austrian Academy of Sciences (OeAW) | ÖAW · Austrian Archaeological Institute (OeAI)

PhD
MSCA Fellow at OeAI/OeAW & Research Fellow at the Dept. of Lithospheric Research/U Vienna

About

19
Publications
3,578
Reads
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490
Citations
Additional affiliations
March 2019 - August 2020
Vrije Universiteit Brussel
Position
  • PostDoc Position
May 2018 - February 2019
University of Copenhagen
Position
  • PostDoc Position
March 2016 - June 2017
Ny Carlsberg Glyptotek
Position
  • PostDoc Position
Description
  • Lead and copper isotope-based evaluation of provenance of synthetic siliceous minerals and ancient vitreous materials
Education
September 2011 - March 2016
University of Copenhagen
Field of study
  • Geochemistry, experimental metal isotope sorption, carbonate mineralogy and sedimentology, Proterozoic ocean oxygenation
September 2009 - October 2011
University of Copenhagen
Field of study
  • Environmental management, metal contamination, soil remediation, biogeochemical cycling, experimental mineralogy
November 2008 - July 2010
University of Natural Resources and Life Sciences Vienna
Field of study
  • Biogeochemistry, soil microbiology, plant physiology, rhizosphere

Publications

Publications (19)
Article
Full-text available
Interest in chromium (Cr) isotope incorporation into carbonates arises from the observation that Cr isotopic composition of carbonates could be used as a paleoclimate proxy to elucidate past fluctuations of oxygen contents in atmosphere and hydrosphere. The use of Cr isotopes to track paleoenvironmental changes, for example related to the rise of o...
Article
Chromium isotopes constitute a powerful paleoenvironmental tracer recording fluctuations of atmospheric oxygenation and continental weathering thus facilitating the reconstruction of the redox state of ancient seawater. We use the δ⁵³Cr signature coupled with REE+Y patterns and redox-sensitive trace elements to monitor environmental changes recorde...
Article
The Yangtze Platform in South China is considered a key site for studying Neoproterozoic ocean oxygenation. Comprehensive Cr concentration and isotopic signatures are presented from cap dolostones of the Doushantuo Formation from a deep water and a shallow marine carbonate section, that have previously been used to constrain the redox evolution of...
Article
Full-text available
Soil microbial communities mediate the decomposition of soil organic matter (SOM). The amount of carbon (C) that is respired leaves the soil as CO(2) (soil respiration) and causes one of the greatest fluxes in the global carbon cycle. How soil microbial communities will respond to global warming, however, is not well understood. To elucidate the ef...
Presentation
Over the last decades, archaeometric research has provided insight into the rich variety of materials that composed the ancient Mediterranean palette, including minerals, rocks, earths, metal oxides, lakes, and pyrotechnological products. Even though polychromy is today considered an important aspect of ancient Greek and Roman art, the organization...
Article
The Neoproterozoic witnessed several low latitude glaciations (i.e., the Sturtian, Marinoan and Gaskiers glaciations) and the geodynamic reorganization of cratonic blocks after the breakup of Rodinia. Trace element and stable isotope geochemistry from approximately coeval carbonate deposits on continental marginal sea and foreland basins (Yangtze P...
Preprint
Book chapter on the raw materials, production technology, places of production and trade of Egyptian blue in Egypt, Italy, and Greece. This chapter builds on archaeological evidence, literary sources and recent archaeometric research on Egyptian blue in Graeco-Roman antiquity to propose future directions in the reconstruction of the production and...
Article
Full-text available
Strontium isotope ratios (87 Sr/ 86 Sr) are commonly used in archeological and forensic studies to assess if humans and fauna are local to the place they were found or not. This approach is largely unexplored for wooden artifacts recovered in archeological contexts, as wood-in the rare instances it does survive-is often poorly preserved. One of the...
Article
Egyptian blue is a copper-based blue pigment that was widely used across the Mediterranean from ca. 3300 BC up to late antiquity and even later. For this case study, we analyzed the provenance of Egyptian blue from a Campana relief from the collection of the Ny Carlsberg Glyptotek, Denmark. Campana reliefs are terracotta plaques, which were named a...
Article
Full-text available
Sr isotopes represent a potential means to trace the provenance of archaeological timber. Such tracing allows us to examine the transport, by past people, of wooden objects and of wood and timber as a raw material. However, issues exist with the mobility of Sr and addition of exogenous Sr during waterlogging. This paper presents a systematic assess...
Article
Full-text available
Changes in stable chromium isotopes (denoted as δ53Cr) in ancient carbonate sediments are increasingly used to reconstruct the oxygenation history in Earth’s atmosphere and oceans through time. As a significant proportion of marine carbonate older than the Cambrian is microbially-mediated, the utility of δ53Cr values in ancient carbonates hinges on...
Conference Paper
Full-text available
The Neoproterozoic witnessed several low latitude glaciations and geochemical and paleontological evidence hint at vast environmental changes that led to the evolution of multicellular life along with deep ocean oxygenation. Recent findings from trace element and novel stable isotope geochemistry argue for rather fluctuating than step-wise oxygenat...
Article
The polychrome glazes from the Processional Way and the Ishtar Gate of Babylon are among the best preserved from antiquity. Yet, little is known about the logistical choices involved in their production. Variations in isotope ratios can be useful for complementing an archaeological investigation of potential geological sources of raw materials. Con...
Article
While the use of Egyptian blue (EB) as the earliest artificial pigment was common amongst ancient Mediterranean cultures throughout Egypt, Mesopotamia, Greece, and the Roman Empire, little is known about ancient production centres and the sources of raw materials. Variations in lead isotope (LI) ratios can be useful for fingerprinting the geologica...
Article
Chromium isotopes are powerful in recording redox fluctuations in marine environments, potentially tracing past atmospheric oxygenation and continental weathering. We present δ⁵³Cr signals with ⁸⁷Sr/⁸⁶Sr, δ¹³C and δ¹⁸O, and element abundances in carbonates of two shallow marine successions of the Otavi Group, Namibia, stretching over four stages fr...
Article
Since soil respiration is a major flux in the global carbon cycle, potential global warming effects have received great attention. Field soil warming studies focused on the difference in soil respiration under actual and elevated soil temperatures. Accordingly, we warmed the topsoil of a mature spruce-beech forest by 4°C compared to the actual soil...

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Projects

Projects (3)
Project
Archaeometry project on ancient polychromy, cultural and technological (ex)change and transformation in the Roman periphal province of Noricum
Project
Provenance of raw materials using various isotope systems, structural and chemical composition of ancient synthetic minerals and glass/glazes.