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Theodore Present

Senior Scientific Researcher

California Institute of Technology

United States

Research Interests

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Professors in United States Professors in Geochemistry Geochemistry professors in United States

Articles (9)

Year:

2026

Year:

2025

Year:

2025

Year:

2024

Year:

2024

Year:

2024

Year:

2024

Year:

2024

Year:

2023

Collaborators (5)

Catherine Clarke

Associate Professor

Stellenbosch University

SOUTH AFRICA

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Joan Valentine

Distinguished Professor

Ewha Womans University

SOUTH KOREA

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Birger Rasmussen

University of Western Australia

AUSTRALIA

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Manuel Guizar-Sicairos

Group Leader - Computational X-ray Imaging

École polytechnique fédérale de Lausanne Institut de Physique

SWITZERLAND

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Maya Gomes

earth and planetary sciences johns hopkins university baltimore maryland usa

UNITED STATES

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Theodore Present

Research Interests

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Articles (9)

Formation and Alteration of Magnesite Nodules From Kunwarara, Queensland, Australia, as an Analog to Mg‐Carbonate Formation on Mars

Reconciling Archean organic-rich mudrocks with low primary productivity before the Great Oxygenation Event

Cretaceous Chert‐Hosted Microfossils Visualized With Synchrotron Ptychographic X‐Ray Computed Tomography (PXCT)

Rapid growth of a carbonate island over the last millennium

Nondestructive geochemical characterization of fossil hominin taphonomy and burial history

Iron: Life’s primeval transition metal

Primary microfossiliferous chert in the Aptian Barra Velha Formation

Sulfur geochemistry of the Salitre Formation phosphorites: Implications for the role of microbial ecology and sulfur cycling in phosphogenesis on an Ediacaran carbonate platform

Geomorphic and environmental controls on microbial mat fabrics on Little Ambergris Cay, Turks and Caicos Islands

Collaborators (5)

Catherine Clarke

Joan Valentine

Birger Rasmussen

Manuel Guizar-Sicairos

Maya Gomes

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