Cement materials and industry in the state of Washington

9781236016331: Cement materials and industry in the state of Washington

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...the strike is north about 10 east, and the dip to the north at an angle of about 45. The slate and limestone appear to be comformable with the slate above the limestone. The limestone is very coarsely crystalline and almost black in color. Other deposits are found in section 19, township 31 north, range 39 east, and in sections 24 and 25, township 31 north, range 38 east. Pink is a very common color in these deposits. They are coarsely crystalline and very hard. Slates having a light gray color are also very common in this locality. Laboratory Examination.--A number of samples have been examined from these various deposits and it is found that they are very similar in their general characters. They dissolve but slowly in cold dilute acids, are all rather coarsely crystalline, and are harder than most limestones. The following analyses show the chemical composition of some of these deposits: ANALYSES OP LIMESTONE8 FROM WEST OF VALLEY, STEVENS COUNTY.' I. Light gray In color. Sees. 30 and 31, T. 32 N., R. 40 E. A. A. Hammer, Analyst. II. Pinkish in color. Sees. 1 and 12, T. 31 N., R. 39 E., and Sees. 6 and 7, T. 31 N., R. 40 E. R. W. Thatcher, Analyst. III. Dark, coarsely crystalline. Sees. 8 and 9, T. 31 N., R. 39 E. R. W. Thatcher, Analyst. IV. Pink, coarsely crystalline. Sec. 19, T. 31 N., R. 39 E., and Sees. 24 and 25, T. 31 N., R. 38 E. R. W. Thatcher, Analyst. II.-IV. Washington Geological Survey, Vol. II, pp. 91, 98, 102. The above analyses show a very high percentage of magnesia in all of these samples and this makes them valueless as materials from which to manufacture Portland cement. Shales are very common in many places in this part of Washington, but no samples of them have been analyzed for this report. About two miles east of Valley, in the NW1...

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