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SEDIMENTARY ROCK ALTERATION IN THE SLICK ROCK DISTRICT D35 <br /> TABLE 22.-Average chemical compositions, in weight percent, of major components of rocks from Mesozoic formations in the Slick <br /> Rock district <br /> [Determined by calculations of semiquantitative spectrographic data given in tables 7,8,to.13.14,and 16,1..--1.not determined.Number of samples in parentheses) <br /> Sandecones Siltstones, mudstones. and clayscones <br /> Navajo Entrada Sandstone Morrison Formation Burro Dakota Morrison Formation Burro Dakota Marcos <br /> Sandstone Dewey Slick Salt Brushy Canyon Sandstone Salt Brushy Canyon Sandecone Shale <br /> Bridge Rock Wash Basin Wash Basin <br /> Member Member Member Member Formation Member Member Formation <br /> (3) (5) (9) (26) (12) (3) (3) (5) (8) (5) (1) (4) <br /> SLOr--- US 76 86 85 85 93 90 58 68 64 68 49 <br /> AL,O,-- 4.7 5.7 3.8 2.8 3.2 1.5 4.3 8.7 17.2 15.9 18.9 15.1 <br /> Fe,O,-- 1.1 1.7 I .9 1.7 1.4 3.3 2 4.3 4.3 4.3 4.3 <br /> Mao---- 1 3.3 1.2 1.3 .8 .2 .3 1.2 1.7 1.3 1.7 1.7 <br /> CaO---- 1.8 1.5 1.7 3.4 3.4 1.5 .3 12.6 L 4.2 .4 14. <br /> Na,O--- .2 .5 .4 .4 .8 .1 .3 1.3 1.9 1.1 1.3 1.3 <br /> g,0---- 3 3.1 2.2 1 .8 ---- ---- 3.6 2-9 3.6 3.6 1.2 <br /> TLO,--- .l .4 .2 .2 .2 .03 .2 .4 .5 .5 .5 .5 <br /> MnO---- .04 .08 .01 .o3 .06 .03 .01 .04 .03 .01 .004 .01 <br /> CO,---- 2.5 5.5 2.7 4.1 3.5 1.4 .5 11.3 1.6 4.7 .6 12.9 <br /> TABLE M.-Average chemical compositions,in weight percent,of minor components of rocks from Mesozoic formations in the Stick Rock <br /> district <br /> [Based on semiquantitative spectrographic data given in tables 7,8,10,1B,14,and 15.Tr.tram.Number of samples in pareathmesi <br /> Sandatonee Siltacane e, mudetones, and claystones <br /> Navajo Entrada Sandstone Morrison Formation Burro Dakota tlorriean Formation Burro Dakota Mancos <br /> Sandstone Dewey Slick Salt Brushy Canyon Sandstone Salt Brushy Canyon Sendecone Shale <br /> Bridge Rock Wash Basin Wash Basin <br /> .Member Member Member Member Formation Member Member Formation <br /> (3) (5) (9) (261 (12) (3) (3) (5) (8) (5) (1) (4) <br /> AF,---- 0 0 0,00001 0 <0.00001 <0.00001 0.00001 <0.00003 0 0 0.00001 0.00001 <br /> As---- <.0 0 <.01 0 <.01 .01 .01 0 <.Ol <.Ol 0 0 <br /> 8----- .003 .006 .003 .002 .002 .003 .003 .007 .006 .01 .01 .01 <br /> Be---- .1 .07 .07 .Ol .1 .OJ .04 .07 .OS .O] .07 .O] <br /> ee---- 0 <.00015 0 0 0 0 0 0 d.000l .0001 .0001 .0001 <br /> Co---- <,DOL .001 <.0007 <.0007 <.001 0 0 .001 .002 .001 .003 .003 <br /> Cr---- .002 .004 .002 .002 .002 .002 .002 .009 .008 .008 .03 .02 <br /> Cu---- .002 .002 .001 .002 .002 .002 .002 .008 .003 .002 .003 .003 <br /> Os---- Tr .0006 <.001 <.001 tool 0 .001 .001 .003 .003 .003 .003 <br /> L---- 0 0 0 0 <.01 0 0 0 <.01 0 .01 .01 <br /> Mo---- 0 0 0 <.0015 0 0 0 0 0 0 0 <.001 <br /> Nb---- <.0015 <,0015 <.00LS <.0015 0 0 0 0 0 0 0 0 <br /> NL---- .003 .003 <.001 .0005 <.001 .002 .002 .003 .003 .002 .01 .01 <br /> Pb---- <.0015 .001 .001 .002 <.001 0 <.001 <.001 .002 <.001 .001 .001 <br /> Sc---- 0 .0008 0 <.0007 <.001 0 .001 .002 .003 .003 .003 .003 <br /> Sn---- 0 0 0 <.OL 0 0 0 0 0 0 0 0 <br /> Sr---- .004 .007 .005 .007 .02 .02 .005 .03 .03 .03 .03 .03 <br /> V----- .004 .003 .005 .004 .004 .001 0 .004 .005 .008 .01 .01 <br /> r----- <,0015 .003 <.0013 .001 .001 .001 .001 .003 .003 .003 .01 .003 <br /> Tb---- <.00015 .0003 <.000LB .0001 .0001 .0001 .0001 .0002 .0003 .0003 .0003 .0003 <br /> 2r---- .02 .03 -'.02 .03 .01 .OL .03 .02 .01 .02 .03 .02 <br /> Comparisons of Chemical Compositions of Morrison formation rocks <br /> with other rocks exposed on or near C-SR-11 Lease (Ike #1 Mine) <br /> (from Shawe, 1976) . <br />