Artha Resources Corporation: Argentina-New Rare Earth Property Staked
23 Février 2011 - 6:45PM
Marketwired
Artha Resources Corporation (TSX VENTURE: AHC) is pleased to
announce that the company has continued to add to its large and
strategic rare earth property portfolio in northern Argentina (Map
1) through the recent staking of 60,000 hectares of ground in
Jasimampa area in the Sierra Norte de Cordoba of Argentina Santiago
del Estero Province. The new property lies directly east of a
number of known small rare earth deposits. This new project is
considered highly prospective for rare earth mineralization related
to carbonatites, plus hydrothermal precious and base metal
mineralization. Target generation work is planned to begin as soon
as possible.
Artha now controls over 1,500 km(2) of properties in northern
Argentina prospective for a variety of styles of rare earth
mineralization, plus over 500 km(2) of properties highly
prospective for gold, silver and base metals. Very little modern
exploration has ever been done in this new area, with historical
records suggesting that the last serious exploration completed
dates back to 1968. The project is well located in the province
with good road access to the east of the properties (Map 2).
A research paper(1) dated 2005 which focussed on the rare earth
mineralization in the immediate vicintity, describes the area as
follows;
The Jasimampa area in the Sierra Norte de Cordoba of Argentina
contains light rare earth element (LREE: Th-Nb) mineralization
associated with several stages of carbonates and widespread
fenitization of marble, granite (496 +/- 2.9 Ma), and alkaline and
siliceous igneous comendite dikes (U/Pb zircon age of 390 Ma)
derived from fractionation of oceanic island basalts. This is the
third discovery of LREE mineralization in Argentina and marks a new
alkaline intracontinental magmatic event of Devonian age.
... Subsequent hydrothermal stages with carbonates, hematite,
pyrolusite monazite, and subordinate celestine and barite caused
alteration of marble that was accompanied by an increase in
absolute REE abundance, up to 15.45 wt percent, and high Sr (10.5
wt %), Th (4,390 ppm), and Ba (1.8 wt %).
Alteration and mineralization at Jasimampa are the result of
late-stage carbonatitic magma fractionation and fluid exsolution.
This is indicated by the strongly alkaline character of early
alteration, the composition of the hydrothermal carbonates,
apatite, and LREE-Sr- and Ba-rich minerals, the
chondrite-normalized REE patterns showing strong LREE enrichment
without an Eu anomaly, and the replacement of marble by assemblages
with very high Ba, Th, LREE, and Sr, and strong K, Zr, and Ti
depletions. The alteration style and mineralization at Jasimampa
are similar to the giant Fe-LREE-Nb deposit Bayan Obo (the world's
largest deposit and producer of rare earth elements, located in
Inner Mongolia) and other hydrothermal LREE deposits hosted in
carbonatites of China.
The Bayan Obo Fe-REE-Nb deposit is the world's largest rare
earth element (REE) resource with estimated reserves of up to 1500
Mt of iron ore (35% wt Fe), 48 Mt REE (6% wt RE 2 O 3 ) and 1 Mt Nb
(0.13% Nb). The Bayan Obo Mine produced 55,300 tons of RE 2 O 3 in
2005, accounting for 47% of the total rare earth production of
China and 45% of that of the world (in 2006)(2).
Artha will provide a detailed update on its exploration programs
in the coming week.
(1) Franchini. M. et al , 200. Na-Fe-Ca Alteration and LREE
(Th-Nb) Mineralization in Marble and Granitoids of Sierra de
Sumampa, Santiago del Estero, Argentina. ECONOMIC GEOLOGY, v. 100,
p. 733-764.
(2) Chengyu Wu, Bayan Obo Controversy: Carbonatites versus Iron
Oxide-Cu-Au-(REE-U). RESOURCE GEOLOGY Vol. 58, No. 4: 348 -
354.
Charles Straw, B.Sc., is the qualified person under NI 43-101
responsible for the technical information in this news release.
About Artha
Artha Resources is a mineral exploration company lead by a team
of mining industry professionals with a proven track record in
project generation, exploration, mining and finance. One of the
Company's principle exploration projects adjoins Silver Standard's
Pirquitas Mine, one of the largest primary silver mines in the
world. Artha is one of the largest mineral explorers in the region
with over 1,500 square km of properties highly prospective for
silver, gold, base metals and rare earths.
On Behalf of the Board of Directors,
Todd McMurray
To view Map 1 please visit the following link:
http://media3.marketwire.com/docs/Arthamap1.pdf
To view Map 2 please visit the following link:
http://media3.marketwire.com/docs/Arthamap2.pdf
Neither TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
Contacts: Artha Resources Corporation Todd McMurray President,
Director 1 604 648 1530 todd@artharesources.com
www.artharesources.com
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