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$IVER, HENRICH & NEWRERRY <br />L. D. $IVER, THE GEOLOGY OF TAE ASPEN, COLO., ORE DEPOSITS II, 9rj ENGINEERING <br />& MINING JOURNAL 212 ( 1888) . <br />This is a continuation of Siver's general description of the <br />Aspen district, with comments concerning similar deposits in <br />Leadville, Red Cliff, Kokomo, and Fremont Pass. <br />General discussion of exposures and SmuaQler ores, p. 212. <br />"Bold" exposures of "Archean," Cambrian, "Silurian," and <br />Lower Carboniferous rocks [occur on Smuggler mountain]. <br />Extensive sulfide ore deposits [are contained within these <br />rocks]. "The railroads have rendered the mines of Smuggler <br />mountain extensive shippers of a $40 ore, considered low <br />grade." <br />C. HENRICH, NOTES OF THE GEOLOGY AND ON $OME OF THE MINES OP ASPEN MGUNTAIN, <br />PITKIN CG., CGLG., 17 AMERICAN INSTITUTE OF MINING ENGINEERS <br />TRANSACTIONS 156-206 (1889). <br />Henrich's paper presents an early history, general <br />geological report, and detailed description of Aspen <br />mountain mines. The author was a major technical witness <br />for the "sideliners" in the apex lawsuits. Henrich <br />concludes that there is no relationship between silver and <br />lead content in ores, and that the ores are discontinuous, <br />occurring only at intersections of faults and favorable <br />sedimentary rocks, not as a continuous "contact" vein." <br />J. S. NEWBERRY, NOTES ON THE GEOLOGY OF TAE ASPEN MINING DISTRICT (COLORADO), <br />18 AMERICAN INSTITUTE OF MINING ENGINEERS TRANSACTIONS 273-278 <br />(1890). <br />" This was the crux of the apex suits; see HYMAN MEMOIRS, Part IV, <br />post p. 65, and GLOSSARY. <br />Bruce A. Collins - 12 - BIBLIOGRAPHY <br />