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BIBLIOGRAPHY <br />(SUMMARIZED AND ANNOTATED) <br />of <br />Geology and Developmental History <br />of <br />Aspen Mining District <br />Aspen, Colorado <br />with <br />Particular Emphasis on the Smuggler Mine' <br />Part I <br />Early Works (1886 - 1909) <br />J. E. SPURR, GEGLGGY OF THE ASPEN MINING DISTRICT, OLO O, U.S. GEOL. SURVEY <br />MONOGRAPH 3l ( 1898 ~ ( "SPURR MONOG ) . <br />D `~ <br />Spurr's monograp i n a ut still definitive work on <br />the geology of h~AS e ining district, primarily from <br />Tourtellot~Pa to ado. The most detailed descriptions <br />are of Asp nun i operations, at the time of Mr. Spurr's <br />field work n 8 5 the more fully developed. More general <br />description o the Mollie Gibson, Smuggler, and other mines <br />of Smuggler ountain are also included. Spurr notes in the <br />introduction that by the time of his work freight rates for <br />low-grade ores had dropped to as low as $5/ton, indicating <br />that these materials were being shipped, not discarded as <br />waste, the crash of silver prices in 1893 notwithstanding. <br />mountain, p. 49. The porphyry` that is so dominant on Aspen <br />mountain is cut off more and more by a fault to the north, <br />' Most metric units, if used in the original reference, have been <br />converted to English units in the following annotations. Temperature <br />units have been retained as used. A HARVARD BLUe BooK citation style rather <br />than scientific format was used for citations at request of counsel. <br />I Aspen mountain Slll; see R. J. $TEGEN, D. W. BEATY, S T. B. THOMPSON, THE <br />ORIGIN OP THE AG-PB-ZN-BA DEPOSITS AT ASPEN, COLORADO, BASED ON GEOLOGIC AND GEDCHEMICAL <br />STUDIES OP THE SMUGGLER OREBODY, ~ ECONOMIC GEOLOGY MONOGRAPH 266-300 (1990) <br />(hereinafter the "$TEGEN REPORT"), Part III, post p. 35. <br />Bruce A. Collins - 1 - BIBLIOGRAPHY <br />