Los Pelambres mine: Difference between revisions
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{{Infobox Mine |
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[[File:Copper mines in Chile - 1.PNG|thumb| Location of the Los Pelambres and [[El Teniente]] copper mines in Chile]] |
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'''Los Pelambres mine''' is a [[mining|copper mine]] located in the north-central of [[Chile]] in [[Coquimbo Region]]. It is one of the largest copper reserves in the world, having estimated reserves of 4.9 billion tonnes of ore grading 0.65% copper.<ref name="Iacobeni">{{cite web|url=http://www.mining-technology.com/projects/minera_los/ |title=Minera Los Pelambres, Chile|year=2012|publisher=mining-technology.com|language=Romanian |accessdate=2013-06-12}}</ref> |
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The deposit was first recognized by Willian Burford Braden in 1920. Production in 2012 was forecast at 390 tons of copper and 28,000 ounces of gold.<ref name=Hawley>{{Cite book |author=Charles Caldwell Hawley |title=A Kennecott Story |publisher=The University of Utah Press |year=2014 |page=109,111}}</ref> The mine is served by [[Los Pelambres Airport]], and by a water [[desalination]] facility at Los Vilos. A billion-dollar expansion project is underway.<ref>{{cite web |title=Expansion of Chile's Los Pelambres copper mi... |url=https://www.bnamericas.com/en/news/expansion-of-chiles-los-pelambres-copper-mine-delayed-6-months |date=20 August 2020 |website=BNamericas.com}}</ref> |
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==Geology== |
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The [[Upper Miocene]] [[tonalite]] [[stock (geology)|stock]] is a north-south oriented oval, 4.5 by 2.4 km in size, which has undergone [[hydrothermal alteration]]. The stock [[intruded]] into [[andesite|andesitic]] host rocks. [[Glaciation]] during the [[Pleistocene]] carved the [[U-shaped valley|U-shaped]] Los Pelambres valley. The head of the valley has the highest concentration of [[ore]] in a [[roche moutonnee]]. A core of potassium silicate alteration contains the economic copper-molybdenum [[mineralization (geology)|mineralization]]. [[Sulfide minerals]] include [[chalcopyrite]], [[bornite]], [[pyrite]] and [[molybdenite]].<ref name="Sillitoe">{{cite journal|last1=Sillitoe|first1=Richard|title=Geology of the Los Pelambres Porphyry Copper Deposit, Chile|journal=Economic Geology|date=1973|volume=68|issue=1|pages=1–10|doi=10.2113/gsecongeo.68.1.1}}</ref> |
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==See also== |
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*[[Antofagasta PLC]] |
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*[[Chuquicamata]] |
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*[[El Teniente]] |
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*[[El Salvador mine]] |
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*[[Potrerillos, Chile]] |
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*[[Chanarcillo]] |
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*[[Escondida]] |
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== References == |
== References == |
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{{reflist}} |
{{reflist}} |
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[[Category:Copper mines in Chile]] |
[[Category:Copper mines in Chile]] |
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[[Category:Mines in Coquimbo Region]] |
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[[Category:Surface mines in Chile]] |
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Latest revision as of 09:02, 2 May 2024
.jpg) | |
| Location | |
|---|---|
| Coquimbo Region | |
| Country | Chile |
| Coordinates | 31°43′00″S 70°29′26″W / 31.716691°S 70.490446°W |
| Production | |
| Products | Copper |
| History | |
| Opened | 1990 |
Los Pelambres mine is a copper mine located in the north-central of Chile in Coquimbo Region. It is one of the largest copper reserves in the world, having estimated reserves of 4.9 billion tonnes of ore grading 0.65% copper.[1]
The deposit was first recognized by Willian Burford Braden in 1920. Production in 2012 was forecast at 390 tons of copper and 28,000 ounces of gold.[2] The mine is served by Los Pelambres Airport, and by a water desalination facility at Los Vilos. A billion-dollar expansion project is underway.[3]
Geology
[edit]The Upper Miocene tonalite stock is a north-south oriented oval, 4.5 by 2.4 km in size, which has undergone hydrothermal alteration. The stock intruded into andesitic host rocks. Glaciation during the Pleistocene carved the U-shaped Los Pelambres valley. The head of the valley has the highest concentration of ore in a roche moutonnee. A core of potassium silicate alteration contains the economic copper-molybdenum mineralization. Sulfide minerals include chalcopyrite, bornite, pyrite and molybdenite.[4]
See also
[edit]References
[edit]- ^ "Minera Los Pelambres, Chile" (in Romanian). mining-technology.com. 2012. Retrieved 2013-06-12.
- ^ Charles Caldwell Hawley (2014). A Kennecott Story. The University of Utah Press. p. 109,111.
- ^ "Expansion of Chile's Los Pelambres copper mi..." BNamericas.com. 20 August 2020.
- ^ Sillitoe, Richard (1973). "Geology of the Los Pelambres Porphyry Copper Deposit, Chile". Economic Geology. 68 (1): 1–10. doi:10.2113/gsecongeo.68.1.1.