magnetite ore alaska

  • Different Types of Iron Ore - Mineral Processing & Metallurgy

    Iron formation consists of iron ore such as siderite, magnetite, and hematite, with silica in the form of chert, jasper, etc., generally in bands, but sometimes not distinctly so. The bands of iron ore are at times high-grade, but are often mixed with a good deal of silica, the whole making an ore too lean for use without concentration.

  • Se Alaska

    iron ore deposits of the usa, puerto rico, mexico and central america, in survey of world iron ore resources: n.y., united nations dept. econ. and social affairs, p. 411-477. Reference Category: Deposit

  • Ultramafic intrusives and associated magnetite deposits at ...

    Ruckmick, John Christian (1957) Ultramafic intrusives and associated magnetite deposits at Union Bay, southeast Alaska. Dissertation (Ph.D.), California Institute of Technology. Abstract. An intrusive body of ultramafic rocks, which crops out over an area of 7 square miles at Union Bay, southeast Alaska, has been mapped and studied petrographically.

  • AMIT 135: Lesson 1 Introduction – Mining Mill Operator ...

    Iron Ore on a conveyor [image 135-1-1] Digging ore from the earth is only half the battle. Often just as challenging and costly is the processing of the ore, which takes place in mills, smelters and refineries. Processing requires crushing and grinding to liberate the minerals.

  • Arrowstar Proposed Program on Alaska Iron Ore Property

    The Snettisham Iron Ore (magnetite) Deposit is located on the Snettisham Peninsula on the south side of Port Snettisham and west of Gilbert Bay, about 30 miles southeast of Juneau, Alaska. The ...

  • Types of Iron Ore: Hematite vs ... - Investing News Network

    Magnetite ore and hematite ore are among the four types of iron ore deposits found in this area. In Minnesota, this type of iron ore is mined mainly in the Mesabi Range, one of the four ranges that make up the Iron Range of Minnesota. In Canada, Labrador is home to the majority of magnetite ore mining.

  • Snettisham Iron Prospect, Juneau Mining ...

    The magnetite is titaniferous. The body is cut by numerous thrust and normal faults (Redman and others, 1989). Although there are several episodes of the intrusion of Alaska-type complexes in southeastern Alaska, the Snettisham body is probably 100-118 million years old (Brew and Morell, 1983; Himmelberg and Loney, 1995).

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  • Magnetite - Wikipedia

    Due to its high iron content, magnetite has long been a major iron ore. It is reduced in blast furnaces to pig iron or sponge iron for conversion to steel. Magnetic recording. Audio recording using magnetic acetate tape was developed in the 1930s. The German magnetophon utilized magnetite powder as the recording medium.