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<br />;Z'~'~'; spoils weze there before you cane out with estimates en <br />revegetation? <br />A It is important for me to know how to take a <br />tree count a:.d I;ow to count the rings on a Pinon and from <br />this I can get an estimate of the minimum period of time <br />that the substrate w.as present, I do not know the maximum <br />period but I do have some figure for the minimum period of <br />time which would be the estimated age of the tree found <br />growing on it. <br />~ i~i ~ Q Tl~e estimated ere of the tree found growing, plus <br />that error you indicated? <br />It i'ius tl;at error as well as whatever period ray <br />have transpired between the 6eposit cf the spoils and the <br />Growth of tl~c t±-ee to t2:at pent ~r!-,icl; I sampled an6 ghat <br />is a crucial period, <br />Q Ko ore told you that that quarry was worked <br />around the turn of the century? <br />A Roughly, seventy years ago. <br />~ i ~i <br />n weren't you told that by sameonel <br />A Z recall just discussing in a general way something <br />a'.~out it but I do not krovr the precise date it eras cuarrie@. <br />4 It was at the turn of the century about 1900, <br />does that sound like the information that was given to ycvl <br />A i:o specific iniorniation, to use that kordir,g, was <br />given to me regarding the date of the quarrying. <br />n Hotc long do you t?;ink those spoils were there? <br />I. Again, I as. just -- I would say that the spo~_ls <br />have probably been there between, oh, thirty to forty ~~ears, <br />1~E5 <br />