SAMPLE: Peak List: Pos. [ 2Th.] Rel. Int. [%] FWHM [ 2Th.] d-spacing [Å] Height [cts]

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Elijah Chase
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1 APPENDIX A XRD DATA

2 SAMPLE: A sample of weakly altered, by decalcification and silicification, limestone inter-bedded with siliceous carbonaceous mudstone. The limestone is still weakly reactive with 10% HCl. Formerly gray to dark gray the limestone is not bleached to white to light gray in color. Locally in the area of alteration there is of realgar mineralization, minor. Sample comes from just above a strongly mineralized zone in the cross section B, sampled by drill hole 07-GC-007. The sample comes from a three foot section averaging oz/t. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

3 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Quartz Calcite

4 SAMPLE: A sample of argillaceous mudstone which has been heavily altered by Carlin-type ore fluids. The typical maroon/brown color of the biotite hornfels has been bleached to gray to tan in color. The sample contains abundant fine pyrite locally concentrated along fractures and bedding planes. The sample is taken from above the strongly mineralized zone in drill hole 07-GC-020. The sample itself comes from a five foot section averaging oz/t Au. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

5 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Kaolinite \ITA\RG Marcasite Orthoclase Quartz

6 SAMPLE: A sample of limestone inter-bedded with siliceous carbonaceous mudstone. The limestone has been weakly altered by Carlin ore fluids resulting in minor decalcification and silicification. The sample also contains some minor realgar mineralization. The sample is still reactive with 10% HCl. The sample is from a five foot section averaging oz/t. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

8 Identified Patterns List: (Bookmark4) Ref. Code Score Compound Name Displacement Scale Factor Calcite Realgar Quartz Orthoclase

9 SAMPLE: A sample of ore grade mineralization in strongly decalcified and silicified limestone inter-bedded with siliceous carbonaceous mudstone. The limestone has been altered to black locally vuggy jasperoid. The sample has minor realgar mineralization, typically filling small voids and fractures. There are also areas of tan to white clay locally filling voids and fractures in the sample. The five foot section from which the sample was taken averages oz/t Au. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

10 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Quartz Realgar Kaolinite 2\ITM\RG

11 SAMPLE: A sample of heavily calc-silicate altered limestone inter-bedded with siliceous carbonaceous mudstone. The mudstone bed is bleached near the calc-silicate alteration. The sample is not reactive with 10% HCl. The sample comes from the calc-silicate altered limestone bed. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

13 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Calcite Wollastonite Quartz Vesuvianite

14 SAMPLE: A sample of strongly calc-silicate altered limestone from a contact zone between the argillaceous assemblage and a siliceous carbonaceous clast. Locally there are areas which still react with 10% HCl. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

16 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Calcite Prehnite Wollastonite Diopside Quartz

17 SAMPLE: a A sample from a section of inter-bedded argillaceous mudstone and limestone with weak calc-silicate alteration in rinds around the edges of the limestone beds. This sample is from a limestone bed. Peak List: a Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

19 Identified Patterns List: a Ref. Code Score Compound Name Displacement Scale Factor Calcite Diopside Orthoclase Anorthite

20 SAMPLE: b A sample from a section of inter-bedded argillaceous mudstone and limestone with weak calc-silicate alteration in rinds around the edges of the limestone beds This sample is from a mudstone bed. Peak List: b Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

22 Identified Patterns List: b Ref. Code Score Compound Displacement Scale Factor Name Orthoclase Mg-hornblende Labradorite Quartz

23 SAMPLE: A sample of mineralized, decalcified, and silicified limestone inter-bedded with siliceous carbonaceous mudstone. The limestone has been altered to very porous, dark gray to black, jasperoid with abundant sooty pyrite. There is weak to moderate realgar mineralization, and local areas of white to tan clay in voids. The 2.8 foot section containing the sample grades oz/t Au. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

24 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Quartz Realgar Kaolinite Marcasite

25 SAMPLE: A sample of weakly decalcified and silicified limestone from a section of limestone interbedded with siliceous carbonaceous mudstone Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

26 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Quartz Calcite Orthoclase

27 SAMPLE: A A sample of weakly decalcified and silicified limestone from a section of limestone interbedded with siliceous carbonaceous mudstone. Peak List: A Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

28 Identified Patterns List: A Ref. Code Score Compound Displacement Scale Factor Name Quartz Calcite Orthoclase

29 SAMPLE: A sample of strongly decalcified and silicified limestone inter-bedded with siliceous carbonaceous mudstone. The limestone has been altered to black locally vuggy jasperoid. The sample has minor realgar mineralization, typically filling small voids and fractures. There are also areas of tan to white clay locally filling voids and fractures in the sample. The five foot section from which the sample was taken averages oz/t Au. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

30 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Quartz low, Kaolinite \ITA\RG Realgar Marcasite

31 SAMPLE: A sample of argillaceous mudstone inter-bedded with limestone which has been heavily calc-silicate altered. The sample comes from below the mineralized zone in drill hole 08- GC-037, but shows no visible alteration. Most of the sample is fine grained and green/brown in color. Locally there are areas of coarsely recrystalized calcite, as well as locally a coarse red-brown mineral identified as garnet. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

33 Identified Patterns List: Ref. Code Score Compound Displacement Scale Factor Name Grossular, Calcite Diopside Mg-hornblende

34 SAMPLE: A sample of strongly decalcified and silicified limestone inter-bedded with siliceous carbonaceous mudstone. The limestone has been altered to black vuggy jasperoid. The sample has moderate realgar mineralization filling small voids and fractures in the vuggy jasperoid. Locally filling the voids along with the realgar is a sliver mineral likely stibnite. The five foot section from which the sample was taken averages oz/t Au. Peak List: Pos. Height [cts] FWHM d-spacing [Å] Rel. Int. [%] Tip width

Petrological Studies by Terry Leach at the North Carlin Trend, Nevada. Keith Bettles October 17, 2008

Petrological Studies by Terry Leach at the North Carlin Trend, Nevada Keith Bettles October 17, 2008 North Carlin Trend From 1999 to 2003 Terry Leach studied the Betze and Meikle ore bodies for Barrick