 | | Journal (article/letter/editorial) | | District LARIMER COUNTY, COLORADO MARK I. JACOBSON 1350 E . Easter Avenue Littleton, Colorado 80122 B...This is one of the few pegmatite districts in Colorado where nei ther all the pegmatites have been studied...map of the Crystal Mountain district, Larimer County, Colorado. Location The Crystal Mountain district...Collins and Loveland within the Front Range of Colorado. Most of the district's pegmatites are found north...north of Drake in the Big Thomp son Canyon and south of Buckhorn Creek. This area can be located on |  | | Report (issue) | | Mountain Quadrangle, Grand and Jackson Counties, Colorado By James C. Cole, William A. Braddock, and Theodore...Mountain quadrangle, Grand and Jackson Counties, Colorado: U.S. Geological Survey OpenFile Report 2011–1111...Mountain Quadrangle, Grand and Jackson Counties, Colorado By James C. Cole, William A. Braddock, and Theodore...to bottom of well 4 All data reported to the Colorado Oil and Gas Commission. Brooks EB Jr #1 (1973;...flank of the Front Range in the Thompson Canyon, Poudre Canyon, and Virginia Dale areas, in Ethridge, F |  | | Report (issue) | | in the Big Narrows Area, northern Front Range, Colorado 3y Jeffrey T. Abbott Open-file report 1970 70-1...in the Big Narrows Area, northern Front Range, Colorado E&r Jeffrey T. Abbott U.S. Geological Survey,...quadrangles located in the northern Front Range of Colorado are Precambrian metasedimentary and metaigneous...a major period of plastic deformation (Fp)> sillimanite-microcline grade regional metamorphism, migmatization...118 Microcline-sillimanite-muscovite assemblages. ....... 120 Andalusite-sillimanite-cordiGrite assemblages |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Report (issue) | | DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY COLORADO SCIENTIFIC SOCIETY FALL FIELD TRIP September...PROTEROZOIC VOLCANOGENIC SEQUENCES IN CENTRAL COLORADO John C. Reed, Jr. U.S. Geological Survey Trip...Leader K. Lee Shropshire University of Northern Colorado Chairman, Field Trip Committee Open-File Report...Geological Survey editorial standards Denver, Colorado 1991 INTRODUCTION1 Precambrian crystalline...exposed in the Laramide and post-Laramide uplifts in Colorado and southern Wyoming include Early Proterozoic |  | | Report (issue) | | METAMORPHIC ROCKS OF THE CENTRAL FRONT RANGE. COLORADO By Dolores J. Gable ' Edited bv William. D............................................ 11 Sillimanite-Free Biotite Gneiss ................................................................... 13 Sillimanite-biotite gneiss.................................................................. 13 Garnet-sillimanite-biotite gneiss.............................................................. 14 Cordierite-sillimanite-biotite gneiss ............................. |  | | Report (volume) | | Geology California Div. Mines and Geology County Rept. Geology County Report. San Francisco, Calif. California...Notes. Colorado School Mines Mineral Industries Bull. Industries Bulletin. Golden, Colo. Colorado School...Golden, Colo. Colorado School Mines Quart. Colo. Florida State University. Colorado School of Mines...Professional Contributions of the Colorado Quarterly of the Colorado School of Mines. Golden, Com. Internat...Ky. Kentucky .Geol. Survey County Rept. - Kentucky Geological Survey County Report. University of Kentucky |  | | Report (volume) | | Bull. 1060-D, p. 193, 252-253, pl. 7. In Nemaha County, Kans., member is basal unit of Howard limestone...Aarde farm, sec. 4, T. 26 S., R. 11 E., Greenwood County. Aaron Slatet Precambrian or Paleozoic: Central...Central Railroad, sees. 5-7, T. 11 S., R. 5 E., Pope County. Named for Abbott Station. Abbyville Gabbrol Precambrian...map. Occurs in vicinity of Abbyville, Mecklenburg County. Abercrombie Formationl Middle Cambrian: Western...named for Abercrombie Peak, on ridge south of Dry Canyon, in Gold Hill district. Aberdeen Sandstone (in |
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