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Putzmeister en la Mina de Aguas Teñidas en el Cinturón Pirítico Ibérico

Noticia solo disponible en inglés: Putzmeister Mixkret 4 and SPM 4210 WETKRET working in Aguas Teñidas Mine in Iberian Pyrite Belt in Southern Spain.

Sapshot Aguas Teñidas Mine         

Aguas Teñidas Mine is located in the northern part of Andalusia in the Province of Huelva, Spain. With its volcanogenic massive sulphide deposits on the northernmost limb of the Iberian Pyrite Belt, the mine holds copper and zinc concentrates as principal products, with additional revenues from lead, gold and silver. The main product being copper, the mine was reopened in 2007 when the copper prices went up.

The Iberian Pyrite Belt is a vast geographical area with particular geological features that stretches along much of the south of the Iberian Peninsula, from Portugal to Spain. It is about 250 km long and 30–50 km wide, running northwest to southeast from Alcácer do Sal (Portugal) to Sevilla (Spain). The mining activity in this region goes back thousands of years.

OWNERSHIP

MATSA / Iberian Minerals

MINE TYPE

Underground

STATUS

Production

MINE LOCATION

Spain ( Andalucía Region, Huelva Province)

SIZE

297.51 km 2 total

DEPOSIT TYPE

Volcanogenic Massive Sulphide ("VMS")

END PRODUCT

Copper, Zinc and Lead Concentrates

GEOLOGY

Located in northernmost limb of Iberian Pyrite Belt

MINE LIF

11 years

 

About Aguas Teñidas Mine

The Aguas Teñidas Mine exploits one of an east-west striking chain of volcanogenic massive sulphide (VMS) deposits on the northernmost limb of the Iberian Pyrite Belt. The local mine geology is comprised primarily of heavily tectonised volcano-sedimentary sequences, with cross-cutting thrust faults and shear zones. The main lithological units at the mine comprise a footwall rhyodacitic unit, massive sulphide mineralisation and a hanging wall volcano-sedimentary unit.

The deposit comprises four main mineralisation types: polymetallic Zn/Pb rock, massive cupriferous, barren pyrite and a cupriferous stockwork. The east-west trending Aguas Teñidas massive sulphide deposit has been demonstrated by drilling to have a strike length of approximately 3,500 m, the easternmost 1,200m of this length is represented by the current Mineral Resource. The deposit is generally 100m - 200m wide in a north-south direction and has a thickness of up to 120m. At its eastern extremity, the deposit lies approximately 285m below surface, and at its western extremity approximately 650m below surface. The deposit thickness pinches to the south and thickens to the north, resulting in a wedge-like geometry.

Mine Operation

Minas de Aguas Tenidas S.A. U. (“MATSA”) is a wholly owned Spanish subsidiary of Iberian Minerals Corp., a public Swiss company. The Aguas Tenidas Mine is 100% owned by MATSA. The expected mine life is 11 years, with deposits for exploitation until 2020 and mineral production of 2.2 Mt /year. MATSA 2.031.044 tons of ores in 2011, therefore 1.160.978t copper and 870.066t polymetallic.

The majority of the reserve base comes from a mine plan in which longhole-open-stoping is the primary mining method. The stope layout is dominated by a 20m-wide transverse panel system that extends over the strike length of the deposit. Levels are established at 30m vertical intervals, and on each level a haulage gallery, spaced at about 50m from the ore zones, provides access to a set of perpendicular crosscuts onto each stope panel. After primary stopes are mined out, they are backfilled with cemented pastefill. Secondary stopes later on will be filled with lower strength paste fill or waste rock. The development infrastructure for the mine is dominated by a primary haulage ramp that connects the mine with a portal very close to the processing plant location at the western end of the mine property. A service ramp provides alternative access to the mine at the eastern end.

There are 900 employees working in the mine; 450 of them being MATSA employees and the rest subcontractors like INSERSA. INSERSA is carrying out some of the drilling, earth removal and concrete spraying in various galleries in the Aguas Teñidas Mine. There is another project in planning phase to start in 2013, 35 km away from Aguas Teñidas Mine (Sotiel Project), with an estimated amount of mineral production 1 Mt / year.

INSERSA is the Spanish market leader in the field “drilling for mining” and has achieved a high degree of diversification in recent years by applying its specialized expertise to a wide range of activities, e.g. special foundation and drilling operations or building construction work. In the Aguas Teñidas Mine, besides the older concrete spraying machines WETKRET WKM 103 and SPM 407, INSERSA is working with an SPM 4210 WETKRET to provide roof support of the excavated sections after blasting, and has recently incorporated Putzmeister´s new low-profile concrete mixer for mining, Mixkret 4.

 

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