 | | Journal (article/letter/editorial) | | com/locate/lithos The Homestead kimberlite, central Montana, USA: mineralogy, $ xenocrysts, and upper-mantle...Geological Survey, 954 National Center, Reston, VA 20192, USA Received 27 June 2003; accepted 25 February 2004...and siltstone in the Grassrange area of central Montana. The Grassrange area includes aillikite, alnoite...as xenocrysts and phenocrysts in a matrix of phlogopite, monticellite, diopside, serpentine, chlorite...and the presence of phlogopite-bearing veins and disseminated phlogopite. Phlogopite-bearing veins may |  | O'Brien, Hugh E., Irving, Anthony J., McCallum, I.S., Thirlwall, Matthew F. (1995) Strontium, neodymium, and lead isotopic evidence for the interaction of post-suhduction asthenospheric potassic mafic magmas of the Highwood Mountains, Montana, USA, with ancient Wyoming craton lithospheric mantle. Geochimica et Cosmochimica Acta, 59 (21) 4539-4556 doi:10.1016/0016-7037(95)99266-j | Journal (article/letter/editorial) | | potassic mafic magmas of the Highwood Mountains, Montana, USA, with ancient Wyoming craton lithospheric mantle...Sciences, University of Washington, Seattle, WA 98195, USA *Department of Geology, Royal Holloway University...potassic malic rocks of the Highwood Mountains in Montana, USA, share many petrographic, major element, and...voluminous Eocene mafic magmatism throughout central Montana may have been triggered by foundering and southwestward...melting within convectively upwelling portions of phlogopite-bearing asthenospheric wedge that had been metasomatized |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal |  | MACDONALD, R., UPTON, B. G. J., COLLERSON, K. D., HEARN, B. C. H., JAMES, D. (1992) Potassic Mafic Lavas of the Bearpaw Mountains, Montana: Mineralogy, Chemistry, and Origin. Journal of Petrology, 33 (2) 305-346 doi:10.1093/petrology/33.2.305 | Journal (article/letter/editorial) | | Potassic Mafic Lavas of the Bearpaw Mountains, Montana: Mineralogy, Chemistry, and Origin by R. MACDONALD...rocks of the Bearpaw Mountains are part of the Montana high-potassium province, emplaced through Archaean...assemblage forsterite + Cr-spinel + diopside ± phlogopite. More evolved rocks are olivine-free, with an...assemblage of either salite + phlogopite + pseudoleucite or salite + phlogopite + analcime. The analcime is...generated at 30 kb from an oli vine + diopside + phlogopite-bearing source. The primary magmas evolved dominantly |  | Griffin, W.L., O'Reilly, Suzanne Y., Doyle, B.J., Pearson, N.J., Coopersmith, H., Kivi, K., Malkovets, V., Pokhilenko, N. (2004) Lithosphere mapping beneath the North American plate☆. Lithos, 77 (1) 873-922 doi:10.1016/j.lithos.2004.03.034 | Journal (article/letter/editorial) | | Diamond Co., PO Box 1916, Fort Collins, CO 80522, USA e Kennecott Canada Exploration Inc., Thunder Bay...Attawapiskat Cobalt Colorado Plateau Elliot County Grass Range James Bay lowland Kansas Kirkland...thickness, from 180– 200 km to ca. 80 km under NE USA. Similarly, the western margin of the root as drawn...Attawapiskat Cobalt Colorado Plateau S.D. median Elliot County 86 average S.D. median Grass Range 236 average...4. Drybones The Snap Lake kimberlite is a large sill in the southern part of the craton, with an age |  | | Book | | J. Wyllie, (California Institute of Technology, USA). Preface In this book the author attempts to...also true in the Highwood Mountains region of the USA. Such occurrences may be understood with reference...are discussed in Chap. 11. The P-T stability of phlogopite can be understood from the study of the system...determine how presence of F affects stability of phlogopite. His studies are also included in this chapter...(with or without excess water on the stability of phlogopite has been discussed in Chap. 12. Trones (2002) |
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