 | | Journal (article/letter/editorial) | | GEOCHEMISTRY OF TANTALUM IN THE HARDING PEGMATITE, TAOS COUNTY, NEW MEXICO* ge,M assachusetts, Anrnun M oNrcoruBnu...pegmatite,in northern New environ(2) favorable (1) granite, a uniqueiy parental a tantaium-rich due to is...specificabsenceof tantalum-bearingsphenefrom all adjacent granite, (4) longcontinueddeformationacting upon crystallizing...between Santa Fe and Taos and 5 miles due east of Dixon. lt lies 20 miles from Taos, in the far southwest...rock group occupies the northern half. The Dixont granite (Just, 1937, pp.2a-25) borders the southern group |  | | Journal (issue) | | New York Famous Mineral Localities —The Pulsifer Quarry....................... 72 by Wende|| E Wi|son ...Creek Pegmatite: A Rare Earth Pegmatite in Burnet County, Texas...........................................by Anthony Robert Kampf The Harding Mine, Taos County, New Mexico......................... 115 by Richard...apatite H (actually fluorapatite), from the Pulsifer quarry near Auburn, Maine; H 3 x 3.8 x 4.3 cm, on display...newsletter, the Quarry. Some club newsletters are, frank ly, boring but the Quarry is alive and interesting |  | | Report (volume) | | Zone UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1966 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office Washington, D.C, 20402 - Price $13 (paper cover) per set...introduced for use in North America, the Pacific Island possessions of the United States, and the Trust...America, Greenland, the West Indies, the Pacific Island possessions of the United States, and the Trust...Bull. 1060-D, p. 193, 252-253, pl. 7. In Nemaha County, Kans., member is basal unit of Howard limestone |  | | Report (chapter) | | THE DISTRICT. GENERAL •••••••••••••• PIKES PEAK GRANITE PLUTON. General ••••••••••• Structure •••••••••••...Relation of South Platte granitoids to the synthetic granite system Ab-Or-Q...................................Modal composition of South Platte pegmatites and granite......... Location of samples for activation analysis...rocks and adjacent granite ••• Suggested paragenetic sequence of South Platte granite- pegmatite system...the South Platte pegmatite district, Jefferson County, Co 1or ado................................... |  | | Report (issue) | | granodiorite ……………………………………………………………………………..37 Embudo granite ………………………………………………………………………………………………………37 General...…………………………………………………………………………………………………37 Biotite granite ……………………………………………………………………………………………………..38 Distribution...………………………………………………………………………………………………………38 Gneissic granite …………………………………………………………………………………………………...43 Distribution...46 Genetic relations of pegmatites and Embudo granite …………………………………………………………48 Aplites …………………………………...Genetic relations between quartz veins and Embudo granite …………………………………………………48 Diabase dikes ………………………… |  | | Book | | Genetic Problems Associated with the Development of Granite-Hosted Deposits of Tantalum and Niobium. P. J..... . . . . . . . . . . . 263 Exploration for Granite-Hosted Tantalum Deposits: An Approach via District...C.A. Arrhenius observed an unknown minerat in a quarry located at Ytterby, near Stockholm, and worked...apatite, fluorite, titanite, uraninite, vesuvianite, zircon etc, which theoretically are not REE minerals,...fractures in altered greenstones from San Benito County, California, is reported with 20.57 wt.% RE2 0 |  | | Report (issue) | | minerals UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1968 UNITED STATES DEPARTMENT OF THE INTERIOR...of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price 50 cents (paper cover) CONTENTS...rocks_________________ Albitized and greisenized granitic rocks. Granite pegmatites._________________ Nepheline syenite...determinations of niobium and tantalum in standard granite G-l and standard diabase W-l __ Average niobium...mafic and ultramafic rocks, and sodic and alkalic granite. Tantalum generally accompanies niobium with an |
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