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Reserve Estimation and Placer Valuation. A. Block method B. Triangle method C. Polygonal method D. Cross section method E. Method of diamonds ... The only time fire assaying is acceptable is to determine the fineness of the gold. Reserve Estimation And Placer Valuation. ... Find the volume of the polygons by multiplying the area of the polygon ...

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Gold Samples and Placer Evaluation (Part 2) - Bedrock Dreams

 · Here's the second installment in my series of posts on placer gold sampling and valuation and in it I'll be directing my attention toward placer evaluation methods, including the block and triangle methods, so read on. Block Method In the block method, placer samples are taken from test pits having the same lengths, widths, and depths.

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A LLUVIAL EXPLORATION & MINING - Mining Directory

RESERVE ESTIMATION AND PLACER VALUATION. After samples have been collected, washed, and assayed, reserves for a deposit can be estimated. There are many placer reserve estimation methods available. Some of these are the block, triangle, polygonal, traverses, and diamond methods. Block Method. The value using the block method is calculated as ...

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Exploration and Evaluation Methods to find gold in ...

Exploration and Evaluation Methods to find gold in Alluvial deposits I. ... The estimation of reserves and valuation placer: Methods that can be used for reserve estimation and valuation are: (1) the method of block (2) the triangle method (3) the polygonal method (4) the method section

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How to Evaluate a Gold Deposit - Comparing Two Deposits ...

 · How to Evaluate a Gold Deposit - Comparing Two Deposits San Francisco Hard Assets Investment Conference 2011 Online Preview. By Brent Cook. October 12, 2011 • Reprints. Major precious and base metal mining companies are having a difficult time replacing their metal production with new reserves. For instance, current global mine production is ...

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A LLUVIAL EXPLORATION & MINING - Mining Directory

Methods that can be used for reserve estimation and placer valuation are (1) block method (2) triangle method (3) polygonal method (4) cross-section method (5) method of diamonds SAMPLING. The sampling methods outlined previously vary from simple grab samples on existing exposures to sophisticated drilling methods. The disposition and density ...

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Different methods of Surveying Final - Durban

DIFFERENT METHODS OF SURVEYING M. Seedat, S. Thusi, M.Zaca, L. Mnembe, N. Ndaba – Survey and Land Information Dept. (June 2012) Introduction Most people have an understanding that surveying is only restricted to field work on construction sites.

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Gold Placer Valuation Methods Trianglepolygonblock

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Computer Aided Ore Body Modelling and Mine Valuation

Computer Aided Ore Body Modelling and Mine Valuation 347 Fig. 1. Mine valuation work flow. 2. Database processes ... Classical methods (triangle, polygon) b. Inverse distance methods c. Geostatistical methods ... Computer Aided Ore Body Modelling and Mine Valuation 1 (,) 1 (,) ...

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Different methods of Surveying Final - Durban

DIFFERENT METHODS OF SURVEYING M. Seedat, S. Thusi, M.Zaca, L. Mnembe, N. Ndaba – Survey and Land Information Dept. (June 2012) Introduction Most people have an understanding that surveying is only restricted to field work on construction sites.

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Exploration and Evaluation Methods to find gold in ... The estimation of reserves and valuation placer: Methods that can be used for reserve estimation and valuation are: (1) the method of block (2) the triangle method (3) the polygonal method (4) the method section (5) the method of diamonds. TESTS.

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