2003 Annual Science Report

Pennsylvania State University Reporting  |  JUL 2002 – JUN 2003

Evolution of Atmospheric O2, Climate, and Biosphere - Kump

Project Summary

Ellen Herman (MS Student) has received some support from the Pennsylvania State Astrobiology Research Center (PSARC) to develop a numerical model of the microbial mat

4 Institutions
3 Teams
0 Publications
0 Field Sites
Field Sites

Project Progress

Ellen Herman (MS Student) has received some support from the Pennsylvania State Astrobiology Research Center (PSARC) to develop a numerical model of the microbial mat. The model is used to evaluate how microbial mats may have differed during Archean and Proterozoic times, when the overlying water may have been O2 poor and/or sulfide rich. Her thesis is now completed and will be published soon.

I’ve collaborated with Bill Seyfried (U. Minn.) on the response of seafloor hydrothermal systems to depressurization during sea-level lowstands. That work is in review with Nature.

Roberta Hotinski (NSF), Michael Arthur (PSU) and I have concluded a study of the Paleoproterozoic biological pump in the Northwest Territories of Canada. The paper is in review in the Bulletin of the Geological Society of America.

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  • PROJECT INVESTIGATORS:
    Lee Kump Lee Kump
    Co-Investigator
  • PROJECT MEMBERS:
    Donald Bryant
    Collaborator

    Roberta Hotinski
    Collaborator

    William Seyfried
    Collaborator

    Julia Maresca
    Doctoral Student

    Ellen Herman
    Undergraduate Student

    Kelsey Johnson
    Undergraduate Student

  • RELATED OBJECTIVES:
    Objective 4.1
    Earth's early biosphere

    Objective 4.2
    Foundations of complex life

    Objective 4.3
    Effects of extraterrestrial events upon the biosphere

    Objective 5.2
    Co-evolution of microbial communities

    Objective 6.1
    Environmental changes and the cycling of elements by the biota, communities, and ecosystems