| 词条 | Qaf-Buall mine |
| 释义 |
| name = Qaf-Buall mine | image = | width = | caption = | pushpin_map = Albania | pushpin_label = Qaf-Buall mine | pushpin_map_caption = Location in Albania | coordinates = {{coord|41.4917|N|20.2219|E|region:AL|format=dms|display=inline,title}} | place = Bulqizë | subdivision_type = County | state/province = Dibër County | country = Albania | owner = State owned | stock_exchange = None | stock_code = State owned | official website = | acquisition year = | products = Chromium | financial year = | amount = | opening year = 1942 | closing year = 2006 }} The Qaf-Buall mine is a large mine located in central Albania in Dibër County, {{convert|40|km|mi}} east of the capital, Tirana. Qaf-Buall represents one of the largest chromium reserve in Albania and one of the largest in Europe having estimated reserves of 1.5 million tonnes of ore grading 39.44% chromium metal.[1] The mine is part of the Bulqizë Massif, a {{convert|370|km2|mi2}} area which has a rock thickness between {{convert|4|km|mi}} and {{convert|6|km|mi}} and contains 65 verified chromium deposits and occurrences.[1] The deposit has been explored to depths of up to {{convert|1300|m|ft}} and the geological reserves amount to 12 million tonnes of which 7.5 million tonnes grading over 38% chromium metal.[1] The Qaf-Buall mine began operating in 1983. Between 1983 and 1985 it produced chromium ore only from occurrences.[1] In 1989 production from the mine started. The total combined chromium ore production from the mine between 1989 and 2006 amounted to 6,000 tonnes.[1] The deepest level of the mine is the Level +420 which reaches a depth of {{convert|420|m|ft}}. The chromium ore reserves of the mine are split into two categories above and below Level +420. The proven ore reserves located above the Level +420 amount to 1,500,000 tonnes of ore grading 39.44% chromium metal.[1] The proven ore reserves located below the Level +420 are currently not estimated or calculated but are expected to be grading over 40% chromium metal.[1] The mine's total reserves amount to 1.5 million tonnes of ore grading 39.44% chromium metal.[1] Since 2006 the mine is unoccupied and no economic activity is recorded at the site. The Qaf-Buall mine is one of the eight Albanian chromium mines to have reserves of over 1 million tonnes of chromium ore.[1] References1. ^1 2 3 4 5 6 7 8 {{cite web|url=http://www.mete.gov.al/upload/chrome.pdf|title=Chromium in Albania|year=2010|work=mete.gov.al|accessdate=2010-09-23|deadurl=yes|archiveurl=https://web.archive.org/web/20120313022921/http://www.mete.gov.al/upload/chrome.pdf|archivedate=2012-03-13|df=}} {{Resources in Albania}}{{DEFAULTSORT:Qaf-Buall Mine}} 3 : Chromium mines in Albania|Underground mines in Albania|Bulqizë |
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