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The occurrence of gold in Usnea auratiaco-atra
Entry ID: 110-88_03


Summary
Abstract: In Usnea aurantiaco-atra (Jacq)- Bory, a lichen species collected in the
Antarctica, the gold content was determined by the cupellation methods, 317 ppb
and 1089 ppb dry weight were found in the lichen samples.

Geographic Coverage
 N: -62.03 S: -62.03  E: -58.15  W: -58.15

Temporal Coverage
Start Date: 1993-11-01
Stop Date: 1993-11-18


Location Keywords
OCEAN > SOUTHERN OCEAN > SOUTH SHETLAND ISLANDS > KING GEORGE ISLAND
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOSPHERE >ECOSYSTEMS >TERRESTRIAL ECOSYSTEMS >ALPINE/TUNDRA    [Definition]
BIOLOGICAL CLASSIFICATION >FUNGI >LICHENS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOTOXICOLOGY >TOXICITY LEVELS    [Definition]


ISO Topic Category
BIOTA


Quality
The analytical procedure used to determine the gold content, cupellation or
fire assay, in samples selected randomly are in accordance with those described
previously. Analysis were carried out in GEOLAB Laboratory, Santiago, Chile.


Access Constraints
Public access


Use Constraints
Public use


Keywords
Antarctic lichens
Usnea aurantiaco-atra
gold content
Au
cupellation method
King George Island
Base Frei


Data Set Progress
COMPLETE


Data Center
Centro Nacional de Datos Antarticos, Instituto Antartico Chileno, Chile    [Information]
Data Center URL: http://www.inach.cl/

Data Center Personnel
Name: RICARDO JANA
Phone: ++56 /61/ 298135
Fax: ++56 /61/ 298149
Email: rjana at inach.cl
Contact Address:
Plaza Munoz Gamero 1055
XII Region
City: Punta Arenas
Country: Chile


Personnel
DORIS NATHALIE JORQUERA
Role: DIF AUTHOR
Email: djorquer at inach.cl
Contact Address:
Luis Thayer Ojeda 814
Providencia
City: Santiago
Country: Chile


WANDA QUILHOT
Role: TECHNICAL CONTACT
Phone: (32) 28 19 52
Email: wquilhot at uv.cl
Contact Address:
Universidad de Valparaiso
Casilla 5001
City: Valparaiso
Country: Chile


Publications/References
Quilhot, W. (1988), Presencia de oro en Usnea aurantiaco-atra., Ser. Cient, INACH 37, 117-119

Bouyle, R.W. (1979), The geochemistry of gold and its deposits, Geological Survey of Canada, 280, 79-83, Energy, Mines and Resources Canada

Seaward, M.R.D. (1974), Some observation on heavy metal toxicity and tolerance in lichens, Lichenologist, 6, 158-164

Creation and Review Dates
DIF Creation Date: 2005-03-11
Last DIF Revision Date: 2016-01-27



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