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t <br />• <br />11 /1 /2003 <br />34000 '-- - ~-' <br />f-~ ~ ~a ~:..u~ <br />(~U6'L. <br />l <br />/ ` .. <br />32000 { ? ~, a ,,~" ~- <br />26000 I <br />24000 ' <br />32000 <br />34000 <br />36000 <br />38000 <br />40000 <br />Horizontal Displacement Vectors, Cover Depth Contours, and Subsidence <br />tF <br />Subsidence (tl) <br />(2 ft) <br />Horizontal <br />Displacement (ft) <br />---~. <br />Fault <br />Figure 7. 1 lorixontal displacement vector, suhsidence and overburden thickness tier ~Ut) <br />survey cimducted during the extraction ut' D9 panel. <br />\lalrkt 1 riltnc~lrt~ic'~, Inr. I'a~r i6 <br />