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PERMFILE60714
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PERMFILE60714
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Entry Properties
Last modified
8/24/2016 11:07:31 PM
Creation date
11/20/2007 6:49:49 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1989074
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
2.04.6(1)(a) GEOLOGY DESCRIPTION-SURFACE MINING
Media Type
D
Archive
No
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Although both holes are slightly beyond the proposed crest of the <br />• hlghwalls, they provided the fullest possible stratigraphic <br />section subject to disturbance. <br />Interpretation of 29-9, without benefit of a geophysical log, <br />suggested that the Engleville Seam horizon had been penetrated. <br />A coal seam at the approximate horizon, and consistent with the <br />Engleville seam structure, Exhibit X, was two feet thick. Either <br />the Engleville is thin at this location or the seam has been <br />mined underground with the Lower Bench/Piedmont remaining intact. <br />The Previous Mining Map, Exhibit HH, indicates that It has not <br />been mined. This, coupled with a lack of water in 29-9 (see <br />Hydrology aspects, below) suggests that the seam may be thin. <br />The data are inconclusive. <br />The need for additional strata and thin or mined out seam <br />conditions in 29-9 dictated that the overburden samples be drawn <br />from both holes, 29-9 for the upper strata, and from 29-4 for the <br />coal and encompassing strata. Hole 29-9 was used as the primary <br />sample hole because it offered the full stratigraphic section. <br />The samples from 29-4 were used to correct the deficiency of <br />29-9. A slight strata overlap may exist in the intervals 29-9, <br />95-100 feet and 29-4, 50-58 feet. If so, it is preferable to an <br />ommision of strata. Exhibit 0 is a composite lithology log of <br />the two holes, it shows the sample composite intervals. <br />Sample Collection, Composlting and Laboratory Analysts <br />• Overburden samples were taken at five foot intervals, with the <br />exception of coal seams. Analysis increment composites were <br />based on an examination of the samples Sn which basic lithology, <br />sand, shale etc were first considered. Also considered was <br />carbonaceous content, as in the 20-25 foot sample. The maximum <br />increment of ten feet was waived for Intervals 50-70 and 70-85 <br />because of the near consistency of the individual samples. <br />The methods of laboratory analysis are provided in the appendix <br />of basic data as a preface to the actual results, Appendix 3. <br />Field Log and Sample Description <br />Original lithologic descriptions were prepared at the time of <br />drilling and sample collection by Rlmrock Coal Company. They <br />reported that rainfall and the need to hurriedly bag the samples <br />interfered with the field descriptions. Consequently, Panorama <br />examined both the descriptions and samples and, as appropriate, <br />re-described the five foot increment samples. A geophysical log <br />was not available for 29-9 but aided the description of the 29-4 <br />strata. <br />Description of Strata <br />• A description of the strata, and the composited analysts <br />increments, are shown on the composite lithology log, Exhibit 0. <br />-6- <br />
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