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RV Investigator Voyage Summary: HEOBI – Heard Earth-Ocean-Biosphere Interactions

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posted on 2023-05-25, 04:04 authored by Mike CoffinMike Coffin
Iron supply limits oceanic primary production in the Southern Ocean as well as elsewhere in the global ocean. We aim to test the hypothesis that hydrothermal activity driven by active submarine magmatism fertilises surface waters with iron, thereby enhancing biological productivity. Heard and McDonald islands on the Kerguelen Plateau are among the world’s most active hotspot volcanoes, and are type examples sourced from a particular geochemical component in the Earth’s mantle (enriched mantle 1, or EM1). Existing data indicate that fields of submarine volcanoes extend for several hundred kilometres away from the islands.

History

Commissioning body

Marine National Facility; CSIRO

Number

IN2016_V01

Pagination

99

Department/School

Institute for Marine and Antarctic Studies

Publisher

Marine National Facility; CSIRO

Place of publication

Hobart, Tasmania

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the earth sciences

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