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Open cut mine depletion excel formulaDescription : Financial reporting in the mining industry* - pwcfacing mining companies is unlikely to be available for some years. ....
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Financial reporting in the mining industry* - PwC
facing mining companies is unlikely to be available for some years. .... stripping costs in an open-pit mine where removal of ... either when the ore body is depleted or when the mine is closed for ...... calculation of deferred stripping adjustments.
IC-MinEval User Manual - EduMine
values can be suggested using empirical formulae. Once the .... Whilst in Excel open the file IC-MinEval.xls in the installation directory. Although ..... density, mining recovery, dilution and stripping ratio of open pit operations. ..... The wshtReserves worksheet calculates the depletion of the orebody using the mining rate. The.
Valuation of Metals and Mining Companies - Basinvest
Open pit mining is a method of extracting rock or minerals from the earth by their .... that ore is mined out the deposit is depleted, no matter what one does or .... A function of the amount of knowledge on a mineral resource/property and the.
OPEN-PIT MINING - ARM
Aug 27, 2007 ... ... at 330m centres and the data captured in Excel spreadsheets. ..... Mining operations are all open pit, based on the conventional ..... 2007 MINERAL RESOURCES, NKOMATI MINE & PHASE 2 EXPANSION PROJECT (with depletion ..... equation was derived at to re-cast the original Pb-collection data as...
Financial Reporting in the Global Mining Industry - IAS Plus
clients and our people excel. Our global mining ..... “Capital development for open pit mines includes both the ... “Stripping ratios are a function of the quantity of ore mined .... “Reserve quantities used to calculate depreciation, depletion.
Kylylahti Resource Increased 260314.pdf - Altona Mining
Mar 26, 2014 ... Contained copper up 17% from June 2013 after mine depletion. • Copper equivalent metal ... expressed as copper revenue; the calculation is explained on page 8. .... tonnes per annum Little Eva open pit copper-gold mine and concentrator. ..... Primary data is collected on the logging sheets in Excel format.
A New Mine Planning Tool for Sub Level Caving Mines - GEOVIA
Conventional mine planning software tools are not well suited .... can be depleted and when sufficiently depleted, it needs to be replenished. ... If the ore zone is located close to the surface or below an open pit, only a ... a selection of rings to get full details of the calculation behind, in this case the .... Full schedule in Excel.
Reserve and Resource Update - Atlas Iron
Aug 13, 2014 ... All Mineral Resources and Ore Reserves are quoted after depletion .... CaFe% is calcined Fe calculated by Atlas using the following formula (Fe%/(100-LOI%))*100. ..... logging at 1m intervals using Microsoft Excel Templates. ..... large scale open pit mining method and proposed processing methodology to...
19 February 2015 - Impact Minerals
Feb 19, 2015 ... resource consultants Optiro at a 0.5 g/t gold cut off is: ... This is very encouraging for the possible future development of an open pit mine given that .... The estimate has been depleted for previous historic mining. ... metallurgical recoveries have been incorporated into the gold equivalent calculation. This is.
Atmospheric Fuzzy Risk Assessment of Confined Space ... - InfoMine
A confined space accident that occurred in 2006 at the Sullivan Mine in Kimberley, ... The direct reason for these fatalities was the collection of oxygen-depleted .... The results and input values are stored in an Excel spreadsheet as well as ..... waste rock dump from an open-cut mine, Water Air and Soil Pol., 15, 405-423.
Mine Planning & Software | - International Mining
Nov 1, 2010 ... The collapse in the San José mine occurred on August 5 and on August 11 .... This is further enhanced with a robust calculation engine that enables ... also integrated to Microsoft Excel and pivotally a business process Template .... sequencing of large open-pit mines where mine planners frequently need...
Information Circular 95: Reconnaissance Investigation of ... - DNR
The location of active mines, borrow pits, some depleted mines, and ..... erage permitted gravel pit in the Cowlitz River ﬂood plain is per- mitted to ..... Based on this calculation, these sand and gravel pits ... U.S. Geological Survey Open-File Report 90—63 1, 40 p., 1 plate. ..... Granite and closely related rocks can make excel-.
Lecture 4: Underground Mining - SlideShare
Nov 2, 2011 ... 1)Bench and Fill (B & F) stoping 2)Cut and Fill (C & F) stoping 3)Stull ... An Underground Stope IAEA An open stope MPI Mines Fig.12: A narrow vein ...... Repeat until orebody is depleted. ... Excel Data-Mining Fundamentals.
New Ketogains Macro Calculator V3 - Now with moar ketones! - Reddit
Sep 8, 2014 ... You have to set manually if you are on a "CUT / MAINTAIN ... For anyone that doesn't have Excel / Office installed, save the ... and right-click to open with Google Sheets (thanks /u/tahoelager). .... out as unreasonably high body fat because glycogen depletion. ..... haha mine are miles off apart from bench.
Gaining Basic Knowledge in Mine Ventilation ; Calculation and Design of Mine ... Lecture: Overview, basics and methods of open pit mining and computer aided .... Depreciation and depletion, being non-cash costs, will have to be calculated using ... Using the model in Excel the student should now be able to determine the...
A Study on Mining Industry Pollution in Chapagaon, Nepal
Sep 9, 2013 ... and stone mines because of lots of open spaces and availability of stones. Streams .... This function is celebrated twice a year, one on the Astami (Note 4) of ..... Excel Stone Crusher ... general flow of streams and rivers that causes river and stream bank cutting in the rainy season. .... Depletion of available.
Omissions of new forest planning rule - Mining Law Reform
Hardrock, pit mining causes even greater devastation than logging; a devastation that cannot .... and grasslands,; Provide and sustain benefits to the American people,; Conserve open space, ... Water Depletion .... xanthate salt; Nalco 7873—no chemical formula given; Alcohol/hydrocarbon blend ... Summary on Excel sheet
Update of Estimated Methane Emissions from UK ... - UK-Air
May 25, 2011 ... mine flooding rates, and a long-term gas reserve decay function. A total of ... depletion of methane reserves and reduction in the number of newly abandoned mines in future years. ... presented in an Excel model which facilitates future updating. ... emissions from deep and open-cast mines were found to be...
KANMANTOO COPPER MINE ORE RESERVE 25% INCREASE IN ...
Nov 1, 2013 ... Mined areas have been depleted to the end of month survey shells as at the month commencing ... 4. There were no changes to the cut-off grade, mining methodology or mining costs. .... Drill type (e.g. core, reverse circulation, open-hole ... Excel spread sheet templates and visually validated before being...
Aggregate Mining Unit Reclamation Plan - Arizona Rock Products ...
UU2.3.4UU. UUPost-Mining Plan for Excavations, Pits, and Rock FacesUU . ..... advantage of post-mining reclamation is that there is complete depletion of the resource. The ... (Adapted from Open Pit Mine Planning and Design) ... State of Nevada has developed an Excel workbook to help estimate reclamation costs, it can.
Fossil Fuels and Water Quality - The World's Water
brought to the surface through mining or drilling, called “produced water,” can ... region are a function of multiple factors, including the amount and type of ..... open pit mining. ..... Depletion or contamination of water resources can lead .... “Natural Gas Production” and “Historical Data” Excel workbooks. .
Water quality effects of lignite strip mining in Texas
Once the target layer is exposed at the surface of the open pit or rolling .... function to isolate an image of the map of Texas lignite mines (Figure 3). ... I downloaded this information as ASCII text files, converted them to Microsoft Excel .... buried in the region of Three Oaks Mine that they were in a reducing (oxygen depleted).