Isotopic composition of nitrate from the temperate and sub-polar North Atlantic

Emilie Le Roy; Debany Fonseca Pereira Batista; Arnout Roukaerts; François Fripiat; Florian Deman; Natacha Brion; Frank Dehairs

Isotopic composition of nitrate from the temperate and sub-polar North Atlantic

Emilie Le Roy, Debany Fonseca Pereira Batista, Arnout Roukaerts, François Fripiat, Florian Deman, Natacha Brion, Frank Dehairs

Research output: Chapter in Book/Report/Conference proceeding › Meeting abstract (Book)

Abstract

One of the aims of the GEOVIDE expedition in the North-
Atlantic (May–July 2014; Lisbon, Portugal – St John, Canada)
is to understand the role of the biological carbon pump on the
distribution of trace elements and their isotopes (TEI). In this
study we determined the natural nitrogen and oxygen isotopic
composition of nitrate to trace the impact of biogeochemical
processing and watermasses mixing on this nutrient. The N, O
isotopic composition of nitrate was determined using the
denitrifier method (Sigman et al., 2001), whereby nitrate is
converted into nitrous oxide, using denitrifying bacteria. We
will present results from contrasted biogeochemical regions of
the North Atlantic: the Iberian margin, the West European
Basin, Reykjanes Ridge, the Irminger Sea, the Greenland
margin and the Labrador Sea. These regions strongly differ in
terms of deep water ventilation and are presently still poorly
documented regarding their nitrate isotopic composition.

Original language	English
Title of host publication	Goldschmidt 2015 Prague CZ August 16-21
Publication status	Published - Aug 2015
Event	Goldschmidt 2015 - Prague, Czech Republic Duration: 16 Aug 2015 → 21 Aug 2015

Conference

Conference	Goldschmidt 2015
Country/Territory	Czech Republic
City	Prague
Period	16/08/15 → 21/08/15

Keywords

Nitrate dual isotopic composition north atlantic

SRP2: Strategic Research Programme: Tracing and Modelling of Past & Present Global Changes
Claeys, P., Elskens, M., Huybrechts, P., Gao, Y., Kervyn De Meerendre, M., Claeys, P., Baeyens, W. & Dehairs, F.
1/11/12 → 31/10/24
Project: Fundamental

Cite this

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title = "Isotopic composition of nitrate from the temperate and sub-polar North Atlantic",

abstract = "One of the aims of the GEOVIDE expedition in the North-Atlantic (May–July 2014; Lisbon, Portugal – St John, Canada) is to understand the role of the biological carbon pump on the distribution of trace elements and their isotopes (TEI). In this study we determined the natural nitrogen and oxygen isotopic composition of nitrate to trace the impact of biogeochemical processing and watermasses mixing on this nutrient. The N, O isotopic composition of nitrate was determined using the denitrifier method (Sigman et al., 2001), whereby nitrate is converted into nitrous oxide, using denitrifying bacteria. We will present results from contrasted biogeochemical regions of the North Atlantic: the Iberian margin, the West European Basin, Reykjanes Ridge, the Irminger Sea, the Greenland margin and the Labrador Sea. These regions strongly differ in terms of deep water ventilation and are presently still poorly documented regarding their nitrate isotopic composition.",

keywords = "Nitrate dual isotopic composition north atlantic",

author = "{Le Roy}, Emilie and {Fonseca Pereira Batista}, Debany and Arnout Roukaerts and Fran{\c c}ois Fripiat and Florian Deman and Natacha Brion and Frank Dehairs",

year = "2015",

month = aug,

language = "English",

booktitle = "Goldschmidt 2015 Prague CZ August 16-21",

note = "Goldschmidt 2015 ; Conference date: 16-08-2015 Through 21-08-2015",

}

TY - CHAP

T1 - Isotopic composition of nitrate from the temperate and sub-polar North Atlantic

AU - Le Roy, Emilie

AU - Fonseca Pereira Batista, Debany

AU - Roukaerts, Arnout

AU - Fripiat, François

AU - Deman, Florian

AU - Brion, Natacha

AU - Dehairs, Frank

PY - 2015/8

Y1 - 2015/8

N2 - One of the aims of the GEOVIDE expedition in the North-Atlantic (May–July 2014; Lisbon, Portugal – St John, Canada) is to understand the role of the biological carbon pump on the distribution of trace elements and their isotopes (TEI). In this study we determined the natural nitrogen and oxygen isotopic composition of nitrate to trace the impact of biogeochemical processing and watermasses mixing on this nutrient. The N, O isotopic composition of nitrate was determined using the denitrifier method (Sigman et al., 2001), whereby nitrate is converted into nitrous oxide, using denitrifying bacteria. We will present results from contrasted biogeochemical regions of the North Atlantic: the Iberian margin, the West European Basin, Reykjanes Ridge, the Irminger Sea, the Greenland margin and the Labrador Sea. These regions strongly differ in terms of deep water ventilation and are presently still poorly documented regarding their nitrate isotopic composition.

AB - One of the aims of the GEOVIDE expedition in the North-Atlantic (May–July 2014; Lisbon, Portugal – St John, Canada) is to understand the role of the biological carbon pump on the distribution of trace elements and their isotopes (TEI). In this study we determined the natural nitrogen and oxygen isotopic composition of nitrate to trace the impact of biogeochemical processing and watermasses mixing on this nutrient. The N, O isotopic composition of nitrate was determined using the denitrifier method (Sigman et al., 2001), whereby nitrate is converted into nitrous oxide, using denitrifying bacteria. We will present results from contrasted biogeochemical regions of the North Atlantic: the Iberian margin, the West European Basin, Reykjanes Ridge, the Irminger Sea, the Greenland margin and the Labrador Sea. These regions strongly differ in terms of deep water ventilation and are presently still poorly documented regarding their nitrate isotopic composition.

KW - Nitrate dual isotopic composition north atlantic

M3 - Meeting abstract (Book)

BT - Goldschmidt 2015 Prague CZ August 16-21

T2 - Goldschmidt 2015

Y2 - 16 August 2015 through 21 August 2015

ER -

Isotopic composition of nitrate from the temperate and sub-polar North Atlantic

Abstract

Conference

Keywords

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Projects

SRP2: Strategic Research Programme: Tracing and Modelling of Past & Present Global Changes

Cite this