Civil Engineering and Geosciences

civil engineering and geosciences

people

	Dr Tatiana Goldberg Guest Member of Staff Phone: tatiana.goldberg@ncl.ac.uk
previous positions
2005 - 2007 Postdoctoral Researcher, School of Earth Sciences, James Cook University, Australia.
memberships
Member of the Geochemical Society
main expertise/research interests
My primary research interest is the evolution of the ocean-atmosphere system through time. By applying geochemical proxies to sedimentary rocks I aim to trace past ocean chemistry and biogeochemical evolution. This involves looking at modern sedimentary environments, as well as reconstructing geochemical conditions in the laboratory, which can then be compared to ancient settings. Specific topics of interest include: - Identification and examination of ocean redox chemistry and its connection with biological and climatic evolution by looking at sulphur, carbon and oxygen cycling (concentrations and isotopes), trace and rare earth element compositions, Fe speciation, and applying other novel paleoenvironmental indicators, such as Mo. - Fluctuation of seawater sulphate concentrations and sulphate sulphur isotope compositions through time (with focus on the Proterozoic and Cambrian) and their relationship to the history of atmospheric oxygen, by analysing phosphorite and carbonate rocks. - Oxygen isotopes in sulphate: causes for their fluctuation and how they may be used to understand the S-cycle.
current work
Aim of my current project is to contribute to the understanding of Mo isotopes and Mo cycling, in order to develop Mo isotopes as a robust tool for paleoenvironmental reconstruction. In addition, paleoenvironmental indicators, such as Fe-speciation, S, C, O and Fe isotopic compositions and trace elements, are utilised to trace the depositional environment. I apply this to enlarge understanding to the Archean and Proterozoic sedimentary record, in order to trace key aspects of the chemical evolution of Earths early biosphere.
sample publications

Papineau D; Purohit R; Goldberg T; Pi D; Shields GA; Bhu H; Steele A; Fogel ML. High primary productivity and nitrogen cycling after the Paleoproterozoic phosphogenic event in the Aravalli Supergroup, India. Precambrian Research 2009, 171(1-4), 37-56.
Fischer WW; Schroeder S; Lacassie JP; Beukes NJ; Goldberg T; Strauss H; Horstmann UE; Schrag DP; Knoll AH. Isotopic constraints on the Late Archean carbon cycle from the Transvaal Supergroup along the western margin of the Kaapvaal Craton, South Africa. Precambrian Research 2009, 169(1-4), 15-27.
Goldberg T; Archer C; Vance D; Poulton SW. Mo isotope fractionation during adsorption to Fe (oxyhydr)oxides. Geochimica et Cosmochimica Acta 2009, 73(21), 6502-6516.
Mazumdar A; Goldberg T; Strauss H. Abiotic oxidation of pyrite by Fe(III) in acidic media and its implications for sulfur isotope measurements of lattice-bound sulfate in sediments. Chemical Geology 2008, 253(1-2), 30-37.
Canfield DE; Poulton SW; Knol AH; Narbonne GM; Ross G; Goldberg T; Strauss H. Ferruginous conditions dominated later neoproterozoic deep-water chemistry. Science 2008, 321(5891), 949-952.
Guo Q; Strauss H; Liu C; Goldberg T; Zhu M; Pi D; Heubeck C; Vernhet E; Yang X; Fu P. Carbon isotopic evolution of the terminal Neoproterozoic and early Cambrian: Evidence from the Yangtze Platform, South China. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 254(1-2), 140-157.
Goldberg T; Strauss H; Guo Q; Liu C. Reconstructing marine redox conditions for the Early Cambrian Yangtze Platform: Evidence from biogenic sulphur and organic carbon isotopes. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 254(1-2), 175-193.
Guo Q; Shields GA; Liu C; Strauss H; Zhu M; Pi D; Goldberg T; Yang X. Trace element chemostratigraphy of two Ediacaran–Cambrian successions in South China: Implications for organosedimentary metal enrichment and silicification in the Early Cambrian. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 254(1-2), 194-216.
Goldberg T; Mazumdar A; Strauss H; Shields GA. Insights from stable S and O isotopes into biogeochemical processes and genesis of Lower Cambrian barite-pyrite concretions of South China. Organic Geochemistry 2006, 37(10), 1278-1288.
Goldberg T; Poulton SW; Strauss H. Sulphur and oxygen isotope signatures of late Neoproterozoic to early Cambrian sulphate, Yangtze Platform, China: Diagenetic constraints and seawater evolution. Precambrian Research 2005, 137(3-4), 223-241.