Biogeochemistry of Extreme Terrestrial Ecosystems

Quantifying chemical-microbe interfaces across diverse geological settings to inform our understanding of elemental cycles in extreme high-Andean environments.

Research Interests

Interdisciplinary Framework

Field Geology: Salar de la Isla, Atacama Region (June, 2026)

Energetic Convergence Nodes (ECN)

  • My recent research identifies Energetic Convergence Nodes in Altiplano hydrothermal systems.

  • In these specific zones, reduced atmospheric pressure fundamentally alters biogeochemical dynamics.

  • Thermodynamic modeling demonstrates that microbial communities in these extreme environments prioritize metabolic flexibility over energy yield maximization.

  • This work establishes quantitative markers of metabolic transitions, identifying where anoxic carbon and sulfur reaction pathways achieve equivalent thermodynamic yields.

Research Focus and Field Expeditions

As a postdoctoral researcher, my trajectory focuses on the biogeochemical processes within high-altitude hydrothermal ecosystems in the Chilean Andes. By integrating thermodynamic modeling with isotopic analyses and molecular microbiology, my work investigates how extreme environmental conditions shape microbial metabolic strategies.

Field Geology: Vulcano, Eolic Islands, Sicily, Italy (July, 2025)

Field Geology: Campanario Hydrothermal System, Maule Region, Chile (April 2023)

Iron-Mediated Metabolisms and Mineral Interactions

  • My future research expands upon metabolic flexibility to investigate iron-mediated anaerobic metabolisms.

  • This work will explore how redox-active minerals influence electron transfer efficiency within coupled iron-sulfur biogeochemical cycles.

  • The goal is to understand the mechanisms underlying anaerobic transformations coupled to metal cycling.

Field Geology: Lirima Hydrothermal System, Tarapacá Region (November, 2023)

Volcanic Environments of Sicily

  • In July 2025, I conducted field-based training and volcanic fieldwork at Vulcano Island, Sicily, Italy.

  • This expedition included marine sampling specifically focused on quantifying microbial and geochemical processes in active hydrothermal systems.

Workflow

From Field to Data

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Field Sampling

Laboratory Analysis

Data Integration

Systematic collection of geological, aqueous, and biological samples from extreme high-Andean environments, maintaining strict protocols for anoxic and trace-element integrity.

Execution of aqueous geochemistry procedures, stable isotope measurements, and DNA extraction for next-generation sequencing.

Statistical computing, thermodynamic speciation modeling, and bioinformatics to reconstruct metabolic pathways and community assembly constraints.

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