Provenance of long-travelled dust determined with ultra-trace-element composition : a pilot study with samples from New Zealand glaciers

Auteurs :
MARX, S.K.
KAMBER, B.S.
MCGOWAN, H.A.

Description :
The AA. report high-precision inductively coupled plasma mass spectrometric (ICP-MS) compositional data for 39 trace elements in a variety of dust deposits, trapped sediments and surface samples from New Zealand and Australia. Dusts collected from the surface of alpine glaciers in the Southern Alps, New Zealand, believed to have undergone long-distance atmospheric transport from Australia, are recognizable on account of their overabundances of Pb and Cu with respect to typical upper crustal values. The relative abundance of 25 other elements that are not affected by atmospheric pollution, mineral sorting and weathering/solubility reflects the geochemistry of the dust source sediment.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2005, vol. 30, n°. 6, p. 699-716, nombre de pages : 18, Collation : Illustration, Références bibliographiques : 49 ref.

Date :
2005

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley