"was der Artikel verschweigt:
Glecore hat in den letzten paar Jahren rund 5 Mrd $ in die Infrastruktur der Mine investiert... Förderung soll jetzt erst langsam anfahren - und weitere Milliarden sind notwendig...
also defakto wurde die Mine mit einem Wert von "0" angesetzt - einzig die Infrastrukturausgaben hat Glencore ersetzt bekommen!
Die 5 Mrd $ wären dann aber ultraschnell in Infrastrukturen "verbraten" worden. ;-)))
Las Bambas:
The Las Bambas district is located in the centralpart of the skarn porphyry belt in south
-
central Peru
.
Skarn
-
related alteration and mineralisation is associated
with a suite of intrusives that are in contact wi
th carbonate
rocks. The porphyry style mineralisation occurs in quartz
-
monzonite to granodiorite rocks. Hypogene copper
sulphides are the main copper bearing minerals with
minor occurrence of supergene copper oxides and
carbonates near surface. The major v
ariations from the 31
December 2012 published resource declaration are due
to the inclusion of the Ore Reserves as part of the
Statement. As of the end of 2012, Ore Reserves had not
been declared at the Las Bambas project, only Mineral
Resources had been d
eclared.
Between years 2005 and 2010, 1,098 holes have been
drilled at the Las Bambas project (Ferrobamba,
Chalcobamba and Sulfobamba deposits) for a total
335,000m. No additional exploration drilling was carried
out since the end of 2010. The Resource B
lock Model
was constructed using Ordinary Kriging and inverse
weighted distance interpolation techniques within
geological constraints from an assay database comprising
some 338,000m of diamond drilling. No reverse
circulation drilling information has been
used in this
estimation.
Identified Mineral Resources are generated from pit
optimisation studies using possible future technical and
economic scenarios, to define mineralisation which might
in whole or in part become economically extractable.
Identifi
ed Mineral Resources are reported using a cut
-
off
grade of 0.20% total copper. Ore Reserves are based on
a pit optimization performed on the resource block model
by using Lerch Gorssman optimization methods, and are
reported using a cut
-
off grade of 0.20%
total copper. This
cut
-
off is based on appropriate metallurgical recoveries.
2013 pit Reserves were optimised on the same resource
block model using Measured and Indicated blocks only,
no additional resources have been identified inside or
outside previous
pit shell limits.
Las Bambas has a life of mine plan that extends for 23
years (2015
-
2037). As of December 31 2013, all
construction and pre
-
stripping permits and documents
have been granted by the Peruvian Authorities, therefore
the Competent Person con
siders appropriate to state the
Ore Reserves. The only relevant pending permit is the
EIA update and related documents, which will be
submitted during 2014.
Las Bambas Resources & Reserves figures were audited
in September 2013 by Mintec Arizona Inc.
Mein MULTIBAGGER Favorit B?C ;-)))))