 | | Journal (article/letter/editorial) | | WITHIN THE ALBITE-EPIDOTE HORNFELS FACIES. FREMONT COUNTY. cor6nnoo CuRnrBs A. Salorrr, The Uniaersi...quartzalbite metasedimentary rocks in western Fremont County, Colorado. The metamorphic grade of these albitic...Idaho Springs metamorphic rocks, and the name Mitchell Gulch formation is proposed for them. The occurrence...of the Arkansas River between Howard and Cotopaxi in southcentral Colorado,discloseda well-exposedisolated...metasedimentary rock group, three miles northeast of Howard (Salotti, 1962). These metasedimentsexhibit a markedly |  | | Report (volume) | | dark shale and sandstone of the Colorado Formation. North of Johnny Gulch in the southeastern part of the...the Elkhorn Mountains Volcanics. South of Johnny Gulch, outside the study area, the Elkhorn Mountains Volcanics...Phenocrysts of quartz, K-feldspar, and sodic plagioclase are present but sparse. Topaz is commonly found...crop out along and near Crow Creek from Sagebrush Gulch eastward in the southeastern corner of the study...uplift occurred after deposition of the Cretaceous Colorado Formation and prior to the deposition of the Elkhorn |  | | Report (issue) | | Kootenai Formation ____________ -1- ______________ _ Colorado Formation ____________ Lower unit ________________...____ _ Frequency diagrams of composition of plagioclase crystals in Cretaceous intrusive rocks __ Sketches...I I I I TABLE 1. Correlation b~tween the Colorado Formation as used in the Elkhorn Mountains and...top. The Koote-nai Formation is overlain by the Colorado Formation of Early and Late Cretaceous age-an...nonmarine quartz-chert sandstone and siltstone. The Colorado Formation is overlain by the Slim Sam Formation |  | | Report (issue) | | ore during the study. Jefferson and Broadwater County records show that 1,106 lode and 275 placer claims...interbedded with shale or mudstone. North of Johnny Gulch in the eastern part of the area, the epiclastic...Elkhorn Mountains Volcanics. However, south of Johnny Gulch the Elkhorn Mountains Volcanics rest with angular...Phenocrysts of quartz, K-feldspar, and sodic plagioclase are present but sparse. Topaz is commonly found...crop out along and near Crow Creek from Sagebrush Gulch eastward. The basalt flows locally rest on sedimentary |  | | Report (volume) | | Mines. 11312 Hessler Road, Cleveland, Ohio. Aspen, Colorado. BOYLSTON, Herbert M., Consulting Metallurgical...Mexico. BUTCHART, W. A., Ore Concentration, Denver, Colorado. BUTLER, G. M., Mining Engineer and Geologist...Denver. Liberty Bell Gold Mining Co., Telluride, Colorado. COLE & CO., Assayers, Chemists, Ore Buyers, Box...Metallurgist, 804 Equitable Building, Denver, Colorado. GARDNER, James H., Geologist, 121 E. 6th St....Engineer and Geologist, 824 Vine St., Denver, Colorado. RUTHERFORD, Forest, Consulting Engineering. Mining |  | | Journal (volume) | | , at the front door of the Court House of Iron County, in the City of Parowan , Utah , on the 26th day...situated in the State Line Min- ing District , Iron County, State of Utah , located , recorded and known under...State Line Mining Dis Sand Aqua , trict , Iron County, Utah , viz : Gravel Bar and Big Locust ; and also...Jennie No. 6 Lode Mining Claim ; townsite, Iron County, Utah: The Jennie No. 7 Lode Mining Claim ; The...situated in the Eagle Valley Mining District , Lincoln County , State of Nevada, located , recorded and known |
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