Talk:Open-pit mining

message: How do pits like Telfer and the Super Pit gold mine in Western Australia compare in size to those listed? Htaccess 05:29, 19 November 2005 (UTC)
thread_title:  Size of Australian gold mines 

message: I put the following disambiguation line at the top of the article:
: This is an article about a specific type of surface mining. For a more general treatment, see that article.
However, it seems to me that a better solution might be to just merge the two articles. However, the surface mining article does state that open-pit mining is a kind of surface mining. --Smithfarm 09:48, 30 March 2006 (UTC)
replies: text: I think that the articles should be merged. Upon reading the other article, I noticed that some of the criticisms I’ve had about this article (such as my suggestion to add more about the environmental impacts) can also be applied to the surface-mining article as well. If the articles were merged, the environmental impact section could encompass many types of mining, since the impacts may be very similar in all cases.Falcanta (talk) 04:27, 8 November 2017 (UTC)
thread_title:  Disambiguation (merge?) 

message: I've never heard of the term 'open cast'. I live in a region which contains a very large number of open cut coal mines, and I have worked in and around mines. I had never heard of open cast until I saw what I thought was a typo in the description of a photo in the Australia article.
Is open cast really a valid term, and if so, what is the etymology of 'cast'? This sounds remarkably as if someone has mis-heard 'open cut' and taken it from there. --Athol Mullen 23:06, 29 November 2006 (UTC)
replies: text: Opencast is the term used in British English. I believe it means the same thing as 'open cut' or 'open-pit'.62.31.12.18 01:03, 13 March 2007 (UTC)
replies: text: I think you are right.  As a Brit the only term I had heard for this type of mine, before looking up this entry, was 'opencast'.  Usually written as one word, I think.  —Preceding unsigned comment added by 62.232.250.50 (talk) 17:47, 19 January 2011 (UTC)
thread_title:  Open cast or open cut? 

message: The photo of the coal mine in Germany looks to me like a strip mine rather than an open pit mine.  Perhaps it should be put instead in the Surface mining article under "area strip mining."  Anyone know about this mine?Plazak 23:35, 25 March 2007 (UTC)
replies: text: Image work done. Unfortunately, from the best I can tell it seems the German word "Tagebau" was mistranslated, as the term is used more accurately for surface mining than for just open-pit mining (I don't read german well, but there is a clear link to "Appalachian Mountaintop Removal" in it. It's quite possible the distinction between open-pit and strip mining does not exist in other languages, or as it may be the case, variants of English. And as a result, all instances of Tagebau in titles were at some point mistranslated as "open-pit", rather than "surface" (or in this case, "strip mine"). I do read Spanish, and the Spanish wikipedia does have words for each type BUT it seems all the links for surface mining lead to open pit, not surface! Morgan Riley (talk) 15:13, 20 February 2013 (UTC)
thread_title: Open Pit versus strip mine

message: It says on the page that the BigHole reached a depth of more than 1,000 meters. Is that correct? As far as I know the actual OPEN MINE at Kimberley reached a depth of less than 300 meters. The parts that did reach deeper were underground mining efforts and not open mining.  —Preceding unsigned comment added by 130.75.103.73 (talk) 09:35, 26 September 2007 (UTC)
thread_title: Depth of the Big Hole in Kimberley

message: There appears to be lots of claims about the size of mines, largest, second largest etc. Very few of these have any referencing to back up these claims. I would suggest that unless these claims are substantiated the statement is removed for the sake of NPOV.  —Preceding Comment added by Nshimbi (talk • contribs) 09:55, 10 February 2009 (UTC)
replies: text: The list almost warrants a list in itself, List of open-pit mines.--kelapstick (talk) 17:12, 10 February 2009 (UTC)
thread_title:  Claims about mine sizes 

message: is out  —Preceding unsigned comment added by 222.155.243.148 (talk) 09:00, 6 May 2009 (UTC)
thread_title:  open pit 

message: Hi. Does anyone know what are the top open pit mining companies that are publicly traded in the U.S., Canada or Europe? Preferribly industrial minerals, but I could use ANY open pit mining company, irrespective of the mineral (or metal). The important criteria is that a significant or major part of the company's business be from open pit mining. Any insight would be very helpful.--Mr. DASS (talk) 03:23, 29 July 2010 (UTC)
thread_title:  Publicly-traded mining companies 

message: Sorry I´m not a regular contributor, but I noticed a factual error in the Extraction section.
"Ore which has been processed is known as tailings, and is generally a slurry." is incorrect.
Tailings are the waste material left over as described in the Wikipedia section for tailings: http://en.wikipedia.org/wiki/Tailings
Sorry I don´t have time to edit myself.  —Preceding unsigned comment added by 190.222.24.170 (talk) 18:02, 8 December 2010 (UTC)
thread_title:  Description error 

message: What about the Carajás Mine? It is the biggest mine in the world and the article says it's open pit, shouldnt it be added? 189.61.4.232 (talk) 14:21, 27 May 2012 (UTC)
thread_title: Addition

message: List of open-pit mines perhaps, or List of large open-pit mines. Relevant columns could include the mineral, location, year it opened, year closed (where applicable), peak extraction rate, volume etc. There's plenty of mines to list . Stevage 07:32, 4 June 2012 (UTC)
thread_title:  Someone should create a list 

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thread_title:  Blacklisted Links Found on the Main Page 

message: I noticed that the article touches upon some kinds of contamination due to the use of open-pit mines including the pollution of groundwater and the acid-mine drainage. However, there is information lacking in this article about several other negative environmental impacts including: the mechanistic change in landscape, air pollution attributed to the release of dust, and the effect of these mines on the abundance and diversity of both fauna and flora. I can site this review article as proof that the environmental impacts are significant enough for discussion in this topic. 
In order to more clearly and thoroughly represent this topic I suggest adding a section for the environmental impacts of open pit mines. Falcanta (talk) 04:22, 8 November 2017 (UTC)
replies: text: I think it is important to discuss this issue in a new subtitle of pollutants. I think the environmental issues and the effect on the miners and surrounding areas should only be briefly touched on maintain neutrality of the article. Jennacarleton (talk) 16:45, 4 April 2019 (UTC)
thread_title:  Environmental Impacts 

message: There is a broken link - it leads to a blog page that does not exist anymore (see Reference 8). I think the link was trying to prove that rehabilitated landfills could prove to be safe residential and commercial zones. However, the source was an “environmental and design altelier” and not a regulatory, environmental, or urban planning organization that could scientifically prove that these sites could be safe for human use. There is research to prove that scientifically designed sanitary landfills can be rehabilitated with some success through the use of phytoremediation, although I am having trouble finding cases where this has been implemented in open-pit mines. Maybe we can delete it and add verfiable source? Falcanta (talk) 04:25, 8 November 2017 (UTC)
thread_title:  Broken Links 

message: Do you all think that an economic importance section should be added to this page? Open-pit mines may have many several negative environmental impacts but are they also important in supplying economies with precious metals and ores. Maybe adding the amounts of products produced and the economic worth of these mines would be important to explaining why they exist. Falcanta (talk) 04:28, 8 November 2017 (UTC)
replies: text: I agree that this is a section that should be added, however, I think it should simply be added to description as economic value can vary depending on the ore being mined, the area being mined, and the size of the mine. Jennacarleton (talk) 16:37, 4 April 2019 (UTC)
thread_title:  Economic Value 

message: In the description, I think it is important to explain how these types of mines are created to prove they are different from other forms of mines. Furthermore, I think it is beneficial to mention the reasoning the position of the mine. E.g., the grade and economic value of the discovered ore. Jennacarleton (talk) 16:36, 4 April 2019 (UTC)
thread_title:  How they are made