Mariana Resources Ltd Releases Its 3rd Quarter Financial Report and the Quarterly Management Discussion & Analysis for the Period Ended 30 September 2012

VANCOUVER, BRITISH COLUMBIA -- (Marketwire) -- 11/13/12 -- Mariana Resources Ltd (TSX: MRY)(AIM: MARL) ('Mariana' or 'the Company') the AIM and TSX quoted exploration and development company focused in Argentina and Chile, today released its unaudited 3rd Quarter Financial Report to 30 September 2012 and its Management Discussion & Analysis for the quarter ended 30 September 2012.

The full report and MD&A can be accessed at the following links to the Mariana Resources Ltd website:

http://www.marianaresources.com/pdf/2012/120930_Mariana_Quarterly_Report.pdf

http://www.marianaresources.com/pdf/2012/120930_Mariana_MDA.pdf

or on SEDAR on the Company's profile at www.sedar.com.

For further information please visit website at www.marianaresources.com.

About Mariana Resources

Mariana Resources Ltd is an AIM and TSX quoted exploration and development company with an extensive portfolio of gold, silver and copper projects in South America. In southern Argentina, the Company's core gold-silver projects are Las Calandrias (100%), Sierra Blanca (100%), Los Amigos JV (49%) and Aguila-Picadero (100%). These projects are part of a 200,000+ Ha land package in the Deseado Massif epithermal gold-silver district in mining-friendly Santa Cruz Province. In Chile, Mariana has a joint venture with US based international mining and natural resources company Cliffs Natural Resources Inc., to explore for iron oxide-copper-gold deposits in a 92,000 km2 area in north-central Chile along the highly prospective Atacama Fault Zone. In Peru, Mariana has an option to earn a 51% interest in highly prospective copper-gold and copper-silver porphyry targets in the Cordillera del Condor of northern Peru.

On 19 December 2011, Mariana announced that AngloGold had completed a strategic placement whereby AngloGold was issued 45,000,000 shares in Mariana at a price of 12 pence per share. AngloGold has the right to maintain its equity of 19.9% in Mariana in further issues by Mariana.

Safe Harbour

This press release contains "forward-looking information" within the meaning of Canadian securities legislation ("forward-looking statements"). These forward-looking statements are made as at the date of this press release and include, without limitation, statements regarding discussions of future plans, the realization, cost, timing and extent of mineral resource estimates, estimated future exploration expenditures, costs and timing of the development of new deposits, success of exploration activities, permitting time lines, and requirements for additional capital. The words "plans", "expects", "budget", "scheduled", "estimate", "forecasts", "intend", "anticipate", "believe", "may", "will", or similar expressions or variations of such words are intended to identify forward-looking statements. Forward-looking statements are subject to known and unknown risks, uncertainties, assumptions and other factors that may cause actual results to vary materially from those expressed or implied by such forward-looking statements, including, but not limited to: the effects of general economic conditions; the price of gold and silver; misjudgments in the course of preparing forward-looking statements; risks associated with international operations; the need for additional financing; risks inherent in exploration results; conclusions of economic evaluations; changes in project parameters; currency and commodity price fluctuations; title matters; environmental liability claims; unanticipated operational risks; accidents, labour disputes and other risks of the mining industry; delays in obtaining governmental approvals or in the completion of development or construction activities; political risk; and other risks and uncertainties described in the Company's annual information form and MD&A for the most recently completed financial year available on SEDAR. Although we believe that the expectations reflected in such forward-looking statements are based upon reasonable assumptions and have attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such forward-looking statements. Accordingly, readers are cautioned not to place undue reliance on forward-looking statements. We do not undertake to update any forward-looking statements, except in accordance with applicable securities laws.

NEITHER THE TSX NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE.

Contacts:

In Australia:

Mariana Resources Ltd

John Horsburgh

Chairman

+61 2 9437 4588


Mariana Resources Ltd

Ray Angus

COO

+61 2 9437 4588


Mariana Resources Ltd

Glen Parsons

CFO

+61 2 9437 4588


RFC Ambrian Limited (Nomad)

Rob Adamson

+61 2 9250 0041


RFC Ambrian Limited (Nomad)

Will Souter

+61 2 9250 0050


In U.K.:

RFC Ambrian Limited (Co UK Broker)

Klara Kaczmarek

+44 20 7634 4725


Fox Davies Capital (Co UK Broker)

Jonathan Evans

+44 20 3463 5000


In Canada:

Mariana Resources Ltd (Vancouver Office)

Kathryn Witter

+1 604 669 9336
www.marianaresources.com