Get AGI Data Sheets: For Geology in the Field Laboratory and PDF

By J. Thomas Dutro Jr., Richard Vincent Dietrich, Richard M. Foose

ISBN-10: 0922152012

ISBN-13: 9780922152018

One of many best-kept secrets and techniques in geology is that this convenient compilation of geological info. even if pocket-sized, this spiral-bound and easy-to-read e-book bargains an excessive amount of beneficial info comparable to geologic map symbols, actual standards graphs and charts, projection nets, checklists, and knowledge on approximately a hundred themes. excellent for speedy reference within the box, lab, and place of work.

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Extra resources for AGI Data Sheets: For Geology in the Field Laboratory and Office

Example text

848398 of an acre = = NOTE: In some places, lots were added to the north tier of sections 1n a township to adjust ~rregularit1es in surveys Tracts (irregular surveys) are common in the West along stream courses where homesteading preceded off1c•ai surveys, ownership was fitted to the later surveys. In Canada. the sec~1on numbering system is the reverse of that 1n the United States. and fract1onal sections are termed legal subdivisions (lsd). 1 Stadia Tables compiled by R. L. Threet, San Diego State College COMPUTATION OF VERTICAL DISTANCE Multiply the stadia table value (factor), for the measured vertical angle, by the full stadia Intercept on a plumb rod.

51 57 51 47 157 141 94 117 257 235 567 514 470 8. 0 8. 3 6. 1 6. 9 4. 3 19 18 951 814 401 174 373 349 163 327 154 308 145 290. 65 62 137 130 123 270 260 247 59 56 117 112 53 107 235 225 214 51 102 204 39 37 36 49 47 45 98 94 196 188 180 35 33 32 31 43 41 40 86 38 77 30 37 29 28 35 34 74 71 143 69 138 66 133 55 52 49 47 45 43 90 8. 7 2. 6 6. 5 6. 7 1. 4 II 83 80 173 166 160 154 148 To f1nd the contour spacing for a slope or dip angle of 24 degrees. with a contour interval of 20ft. locate line 24 in the left column and number 20 on the top line.

1 I I ~I Jl 40 ACRES ~I I """/4post : [AST ! 848398 of an acre = = NOTE: In some places, lots were added to the north tier of sections 1n a township to adjust ~rregularit1es in surveys Tracts (irregular surveys) are common in the West along stream courses where homesteading preceded off1c•ai surveys, ownership was fitted to the later surveys. In Canada. the sec~1on numbering system is the reverse of that 1n the United States. and fract1onal sections are termed legal subdivisions (lsd). 1 Stadia Tables compiled by R.

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AGI Data Sheets: For Geology in the Field Laboratory and Office by J. Thomas Dutro Jr., Richard Vincent Dietrich, Richard M. Foose


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