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Iron isotopes as a tool in oceanography.

Publication: M2 Presswire
Publication Date: 31-JUL-09 		Format: Online
Delivery: Immediate Online Access

Article Excerpt
M2 PRESSWIRE-31 July 2009-National Oceanography Centre: Iron isotopes as a tool in oceanography(C)1994-2009 M2 COMMUNICATIONS

RDATE:31072009

New research involving scientists from the National Oceanography Centre, Southampton (NOCS) highlights the potential utility of iron isotopes for addressing important questions in ocean science. The findings are published in the August edition of the journal Geology.

Large regions of the world's oceans have low primary production despite having plenty of macronutrients such as phosphate, nitrate and silicate. This is due a shortage of the essential micro-nutrient iron, which is needed for the growth of phytoplankton. These tiny, plant-like organisms sit at the base of the marine food chain and collectively draw vast amounts of the greenhouse gas carbon dioxide down from the atmosphere through the process of photosynthesis. A proportion of the carbon is exported to the deep ocean, making...

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