Author Archives: Roisin Moriarty

About Roisin Moriarty

Postdoctoral Research Fellow with the Isotope Geochemistry and Cosmochemistry group at the School of Earth, Atmospheric and Environmental Science at the University of Manchester, UK. I work with noble gases and tritium in seawater samples from the south Atlantic and the Southern Ocean. I participate in research cruises in order to collect the seawater samples that I analyse. I am now working as a chemical oceanographer/noble gas geochemistry but I have a background in ocean biogeochemical modelling and zoology.

Successful Cruise UKGEOTRACES 40ºS

Posted on February 7, 2012
Outlook

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      Latest news on the successful completion of GA10 UKGEOTRACES 40ºS Just back from the south Atlantic and a successful research expedition. For the offical update click the link above.

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Location, location, location – UKGEOTRACES 40°S

Posted on January 4, 2012
Figure 2: Natural phytoplankton boom

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I promised a while ago that I would give some background to the research expedition that I was preparing for – UKGEOTRACES 40°S. I have been at sea, on the RRS James Cook, for the past week, setting of from … Continue reading →

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How to pack for a cruise – with a twist

Posted on November 9, 2011
UKGEOTRACES

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When I tell people I go on cruises I always have to preface it with the words ‘scientific research’. However, when my boss tells says ‘get packing you are off on a cruise’ there is, of course, some excitement, even … Continue reading →

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The Lure of the Unknown

Posted on October 21, 2011
The Royal Research Ship the James Cook

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“Probably the greatest enticement for those who today are devoting their lives to the study of the sea is the lure of the unknown, the challenge of the undiscovered, the thrill of discovery on what is truly the last frontier … Continue reading →

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Helium-3 as a Source Tracer for Micronutrients

Posted on March 1, 2011
New Fe concentration data in the Southern Ocean showing a doubling in Fe content in the <0.2micron dissolved fraction close to the MAR on the zero Meridian (Klunder et al, in press) illustrating the significance of the volcanic micronutrient sources to the ocean.

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Using noble gases and tritium to identify trace metal sources and scavenging in the oceans Trace metals include elements such as zinc, lead, nickel, manganese, iron, copper, cobalt, chromium and aluminium. They are also known as micronutrients as they are … Continue reading →

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