Underwater coral reef

Biogeochemistry

Our research is aimed at understanding nutrients, trace metals and carbon cycling in the present and past oceans.

science Research area

About

Our research is aimed at understanding nutrients, trace metals and carbon cycling in the present and past oceans, with emphasis on silica and calcium carbonate biomineralising organisms. Our strengths lie in developing and applying trace metal and isotopic analysis techniques to samples collected from nature and grown in controlled laboratory cultures. Our current focus is on:

  • Understanding the mechanisms of trace metal and isotope incorporation into biogenically precipitated  aragonite, calcite and silica;
  • Reconstructing past and current environmental change using natural archives including foraminifera, corals, siliceous sponges and diatoms;
  • Understanding the role trace elements play in regulating phytoplankton physiology and productivity, particularly in the Southern Ocean and seas of the Australian region.

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The marine biogeochemistry group operates a state-of-the-art trace element and isotope analysis facility, equipped with advanced instrumentation.

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The marine biogeochemistry group maintains a range of field-deployable equipment and laboratories.

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The marine culture facilities encompass a range of sophisticated equipment.

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Our publications

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Facilities

We research a wide range of topics relating to the use of carbon-14 in the environment. This includes using carbon-14 for dating purposes in, archaeology and forensics and as a  carbon-14 as a tracer in the global carbon cycle, both in soils and in ocean circulation.

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Projects

Lake Tyrrell is a large salt lake in outback Australia . We aim to make the lake one of the most completely understood hypersaline ecosystems in the world. To achieve this, we are combining environmental genomics where the genome of all predominant microorganism in the lake water are sequenced (>1 billion base...

Today, Earth's oceans are teaming with life, and even deep marine trenches contain enough oxygen to support complex organisms. However, oceans in Earth's distant past were fundamentally different. In the first half of Earth history, ~4.5 to 2.3 billion years (Ga) ago, the world's oceans and atmosphere were almost...

Status

Current

In lakes and oceans, organic matter from dead organisms is usually recycled back into CO 2 and water. However, a small fraction of this dead biomass, particularly pigments and lipids, escapes the remineralization process and accumulates in the bottom sediment. Over millions of years, the lipids will turn into...

Status

Current

Utilize the state of the art AMS and radiocarbon preparation labs at RSES to trace carbon through the environment.

The Early Paleozoic is a critical time for the evolution of life on Earth, deposition of organic-rich rocks and the generation of global petroleum accumulations. Canning Basin Ordovician cores contain the microfossils G. prisca and E. maureeniae, representing a unique opportunity to investigate their molecular fossils

Status

Potential

People

Research supports
The group has funding to support one highly motivated PhD student, based on competition of applicants (academic background, research ideas, etc). Contact me if you are interested.
We also welcome candidates who can raise fund (e.g., China Scholarship Council,...

Members

Researcher

Research Fellow

Honorary Professor

Professor
Associate Director HDR

Research support officer

No photo provided

Technical Officer

Technical officer

Senior Technical Officer - Mineralogy Laboratory

Student

Phd Candidate

PhD Candidate

PhD Candidate

PhD Candidate

PhD Candidate

PhD Candidate

Visitor and affiliate

Honorary Assoc. Prof. (The Australian National University)
Honorary Professor (University of Queensland)