University Of Tasmania
129928 - The neodymium isotope fingerprint of Adelie Coast Bottom Water.pdf (1.15 MB)
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The neodymium isotope fingerprint of Adélie Coast Bottom Water

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journal contribution
posted on 2023-05-19, 23:30 authored by Lambelet, M, van de Flierdt, T, Butler, ECV, Andrew BowieAndrew Bowie, Stephen Rintoul, Watson, RJ, Tomas Remenyi, Delphine LannuzelDelphine Lannuzel, Warner, M, Robinson, LF, Bostock, HC, Bradtmiller, LI

Adélie Land Bottom Water (ALBW), a variety of Antarctic Bottom Water formed off the Adélie Land coast of East Antarctica, ventilates the abyssal layers of the Australian sector of the Southern Ocean as well as the eastern Indian and Pacific Oceans. We present the first dissolved neodymium (Nd) isotope and concentration measurements for ALBW. The summertime signature of ALBW is characterized by εNd = −8.9, distinct from Ross Sea Bottom Water, and similar to Weddell Sea Bottom Water. Adélie Land Shelf Water, the precursor water mass for wintertime ALBW, features the least radiogenic Nd fingerprint observed around Antarctica to date (εNd = −9.9). Local geology around Antarctica is important in setting the chemical signature of individual varieties of Antarctic Bottom Water, evident from the shelf water signature, which should be considered in the absence of direct wintertime observations.


Department of Industry, Science, Energy and Resources


Publication title

Geophysical Research Letters










Institute for Marine and Antarctic Studies


Amer Geophysical Union

Place of publication

2000 Florida Ave Nw, Washington, USA, Dc, 20009

Rights statement

Copyright 2018 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

Repository Status

  • Open

Socio-economic Objectives

Measurement and assessment of marine water quality and condition; Expanding knowledge in the earth sciences