 | | Journal (article/letter/editorial) | | GeologicalSurvey,National Center, Mail Stop 917, Reston,Virginia 22092 Abstract Modalmineralogydeterminedfor 82...82 Fe-Ti oxideand apatiterocksfrom localitiesin Virginia, New York, Quebec,Norway,and Swedenlargelysupportsthe...Roselandanorthositeand associated rocksof the Roseland-Piney River districtof Virginiais explainedby...dikelike bodiesof ilmenite-apatiterock in the Roseland-Piney River districtof Nelsonand Amherstcounties...thisstudyconcernsnelsoniteof the Roseland-Piney River district,in addition to a smallbodyof magnetite-ilmenite-apatite |  | | Report (issue) | | VIRGINIA GEOLOGICAL SURVEY UNIVERSITY OF VIRGINIA Tnour.s Lnorvanp Warsow, Pn. D. DIRECTOR Bulletin...Geology of the'Titanium and Apatite Depositrs of Virginia Bv Tnorues LuoNeno Wersow eNo Srrpnex Tannp ...Vrncrnre I9I3 ,//l' ,4 BULLE'I'IN III-A VIRGINIA GEOLOGICAI, SUITVEY. Piney Rir-er near Rose's...occurrence. Chemical characters. Norms'of Amherst-Nelson counties Mineralogical characters. Quartz ......lrn L Map of rutile area in Amherst and Nelson Counties, Virginia ' ' in pocket " ' X'rontispiece IL Piney |  | | Report (issue) | | Geology and Mineral Deposits of the Roseland District of Central Virginia U.S. GEOLOGICAL SURVEY PROFESSIONAL... Geology and Mineral Deposits of the Roseland District of Central Virginia By NORMAN HERZ and ERIC R. FORCE...titanium-mineral deposits in Nelson and Amherst Counties in the Blue Ridge of Virginia UNITED STATES GOVERNMENT...1923Geology and mineral deposits of the Roseland district of central Virginia. (U.S. Geological Survey professional...16:1371 1. Geology-Virginia-Roseland Region. 2. Mines and mineral resourcesVirginia-Roseland Region. I. Force |  | | Journal (article/letter/editorial) | | Geology, College of William and Mary, Williamsburg, Virginia 23187 Abstract We report field, petrographic... Urbain massifs in Quebec; from the Roseland massif in Virginia; and from the Carthage massif in New...fully contained within anorthosite, whereas at Roseland, nelsonite occurs as dikelike bodies within country...of anorthosite massifs and contain ilmenite ± magnetite, apatite, orthopyroxene + clinopyroxene, and plagioclase...data on nelsonites from the type area at Roseland, Virginia, and from the anorthosite massifs at Labrieville |  | | Report (volume) | | Ilmenite Placer Deposits Roseland District, Nelson and Amherst Counties, Virginia By NORMAN HERZ, L. E....panned concentrates of heavy minerals from the Roseland district indicate the possibility of valuable...channels, Roseland district________________________._ In pocket FIGURE 1. Index map of Virginia showing...showing the Roseland district__-__ F2 2. Geologic sketch map of the Roseland district-.._._____ 6 TABLES TABLE...deviations for rutile, zircon, ilmenite, and magnetite in heavy-mineral concentrates in each sieve fraction |  | | Report (issue) | | iron titanate (ilmenite), and in iron ferrate (magnetite) as intergrown ilmenite. Of these three forms...known deposits in the United, States only those in Virginia are of commercial importance. These have been...made the subject of a special report 2 by the Virginia Geological Survey, which was preceded by a preliminary...preliminary paper on the rutile deposits of Amherst and Nelson counties.3 1 Clarke, F. W., U. S. Geol. Survey...Geology of the titanium and apatite deposits of Virginia: Virginia Geol. Survey Bull. 3-A, 308 pp., 1913. 3 |  | | Report (issue) | | THE INTERIOR TITANIUM DEPOSITS OF NELSON AND AMHERST COUNTIES VIRGINIA GEOLOGICAL SURVEY PROFESSIONAL PAPER...ORIGIN OF THE TITANIUM DEPOSITS OF NELSON AND AMHERST COUNTIES, VIRGINIA BY CLARENCE S. ROSS UNITED STATES..._________________________ Quartz monzonite____ _____ ________ Roseland anorthosite____. __________ Primary andesine anorthosite..._________________________ Sphene (leucoxene)________________ Magnetite- _-_-__-___-__-_-_______ Apatite ___________________________...sphene_____---------_---_ 2 FIGURE 1 . Map of the Virginia titanium region._____________________________ |  | | Report (issue) | | biotite in some gneisses from Mason Mountain, Macon County, N.C --------------------8. ~mong minerals of some...the presence of intergrowths with hematite and magnetite and to solid solution with hematite (low values)...rock Ti02 in each mineral Olivine Serpentine Magnetite 0.134 .073 .00 .017 .080 47.4 22.2 16.3 11.0...-------------- Diopside Enstatite Olivine Serpentine Magnetite .105 .070 .00 .027 .087 42.8 32.3 12.5 10.9...-------------- Diopside Enstatite Olivine Serpentine Magnetite .102 .080 .00 .060 .108 22.0 13.3 44.4 18.3 |  | | Report (issue) | | ALL UVIAL ILMENITE PLACER DEPOSITS, CENTRAL VIRGINIA GEOLOGICAL SURVEY PROFESSIONAL PAPER 959~H COVER...Carolina Alluvial Ilmenite Placer Deposits, Central Virginia By J.P. MINARD, E. R. FORCE, and G. W. HAYES ...in alluvial deposits along streams draining the Roseland Anorthosite and nearby areas, and their economic...James P Alluvial ilmenite placer deposits, central Virginia. (Geology and resources of titanium) (Geological...Bibliography: p. 1. Ilmenite._Virginia. 2. Placer deposits-Virginia. I. Force, E.ric R., joint author. II. Hayes, |  | | Report (issue) | | Center Reston, Virginia 22092 A. Krishna Sinha Department of Geological Sciences Virginia Polytechnic Institute...Institute and State University Blacksburg, Virginia 24061 Norman Herz Department of Geology The University...core of the Blue Ridge anticlinorium in northern Virginia James W. Clarke Geology and age of the Robertson...8 Rb-Sr age for the Robertson River pluton in Virginia and its implication on the age of the Catoctin...Evolution of the Grenville terrane in the central Virginia ee ee eee ORNS eee i FVein.) A. K. Sinha and M |  | | Journal (article/letter/editorial) | | PETROLOGY OF THE MONTPELIER AND ROSELAND POTASSIC ANORTHOSITES, VIRGINIA BRENT E. OWENS§ Department of...Geology, College of William and Mary, Williamsburg, Virginia 23187, U.S.A. ROBERT F. DYMEK* Department of...Missouri 63130, U.S.A. ABSTRACT The Montpelier and Roseland plutons are the southernmost, and among the youngest...which Ba levels exceed those of Sr. Montpelier and Roseland are the most potassic of all massif anorthosites...cooccurring plagioclase and pyroxene in Montpelier and Roseland (%An versus %En) lie well off trends defined for |  | | Report (issue) | | of the rare-earth metals at Baringer Hill, Llano County, Tex., by F. H. Hess, in C~ntr ibutions to Economic...Geology, 1907, pp. 286-294, 1908. (4) *430d The Virginia rutile deposits, by T. L. Watson and Stephen Taber...Emmons, 260 pp., 1913. (6) *540h Titaniferous magnetite beds on the Blackfeet .Indian Reservation, Mont... 1917. (10) *735g General features of the magnetite ores of western North Carolina and eastern Tt:mnessee...940d Vanadium-bearing magnetite-ilmenite deposits near Lake Sanford, Essex County, N. Y. , by .r. R. Balsley |  | | Journal (issue) | | February 1987 No.1 VIRGINIA MINERAL LOCALITY INDEX D. Allen Penick, Jr. This Virginia mineral locality...world-wide locality index The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R. V. Dietrich. Although...of the index. Some of the famous localities in Virginia, such Updated from Rocks and Minerals, Vol. 60...pegmatite in Amelia County and the Lynch Station locality (turquoise crystals) in Campbell County, are now closed |  | | Report (issue) | | is located in the Plomosa mining district, Yuma County, Ariz., in the southern part of the Dome Rock Mountains...vicinity in that it contains small crystals of magnetite scattered throughout the rock in large quantities...silver in ores from this deposit. The presence of magnetite near the vein is a feature worthy of note; its...secondary metamorphic minerals observed are calcite, magnetite (or ilmenite) and epidote, which are present only...creek and wagon road cross the Pima-Santa Cruz county line, a short distance above White House, as indicated |  | | Journal (issue) | | OF THE HORSESHOE MOUNTAIN QUADRANGLE, NELSON COUNTY, VIRGINIA William Mark Bailey' 4D - The Horseshoe...the Blue Ridge Physiographic Province of central Virginia (Figure 1). The study area is the northern half...half of the quadrangle and is part of the Roseland titanium mining district. The area is mountainous with...to late Paleozoic age for this event in central Virginia, based on isotopic studies conducted elsewhere...intensity (U, Th, K) aeroradiometric contour maps (Virginia Division of Mineral Resources, 1976) for the Horseshoe |  | | Journal (article/letter/editorial) | | (1908), the firstdeapatiteandthe Fe-Ti oxides--magnetite, ilmenite,or rutfie reportwasmadeby Miller(1910...in whichthe ore wasdescribed 50% quartz, 45% magnetite and pyrite, and 5% badly decom1991,forsummary)...1973;Roelandts andDuchesne, 1979; more, in addition to magnetite, the ore contains significant Kolker,1982;Bolsover...al.,1986; quantities of ilmenite. This unusual magnetite-apatite-ilmenForce and Carter, 1986; Herz and...1991),(2) the RemsenandOhioquadrangles, southeast (Nelson, 1968), and (3) the Antwerp quadrangle try at Port |  | | Journal (article/letter/editorial) | | Larsen. Jr.). The R and S molybdenum mine, Taos County, New Mexico: Ecoz. Geol..,15, 567-573, (1920).... D. Miser). Diamond-bearing peridotite in Pike County, Arkansas: Econ. GeoI., 17, 662-674, illus., (1922)... D. Miser). Diamond-bearing peridotite in Pike County, Arkansas: U. S. Geot. Swaey BulI. 735, 279-322... (with H. D. Miser). Peridotite dikes in Scott County, Arkansas: (L S. GeoL suraey Bull. 735, 271-278...and associated minerals from near Challis, Custer County, Idaho: t/. S. Natl. Mus. Proc.,64, art. 79,19 |  | | Report (issue) | | Acting Director U.S. Geological Survey, Reston, Virginia: 2017 For more information on the USGS—the Federal...Lac Tio hemo-ilmenite deposit; and titaniferous magnetite and ilmenite from the magmatic La Blache iron-titanium-oxide...crystals. Titaniferous magnetite, which is a complex oxide made up primarily of magnetite (Fe3O4) with iron-titanium-oxide...Maryland; Minn., Minnesota; N.Y., New York; Va., Virginia] Deposit class Deposit type1 Typical mineralogy...Albititic/metasomatized Rutile 3 Kragerø, Norway; Roseland, Va. (in part) I–6 Alkalic/metasomatized Perovskite |  | | Journal (article/letter/editorial) | | MINERALOGIST, VOL 5I, SEPTEMBER OCTOBER. 1966 VIRGINIA NIETAI,IICT }IINERALS: PERRIERITE AND CHEVKINITE...(Jniaersity oJ Virginia, Charlottesville,Vtrginia. Ansrn,lcr Perrierite occurs several piaces in Virginia, especially...and Nelson counties. chevkinite is found only at a previously unknown iocality in Nelson county. All...chevkinite reported earlier from Amherst, Bedford, and Nelson counties is actually perrierite. rndexed r-ray...chevkinite. Both minerals contain thorium. Most of the Virginia specimens are only slightly metamict. Heat treatment |  | | | | Geological Survey, 956 National Center, Reston, VA 20192, USA 4 Camborne School of Mines, School of Geography,...presented of chevkinite-group minerals from Canada, USA, Guatemala, Norway, Scotland, Italy and India. The...cation in the A site. Patchilyzoned crystals from Virginia and Guatemala contain both perrierite and chevkinite... Pegmatitic Bearpaw Mts, Montana Burley Farm, Virginia Bjørkedalen, Norway Mt Charles, East Antarctica...the Sierra Nevada, California, pegmatites from Virginia, and metacarbonates from Golden Lake, Ontario |  | | Journal (article/letter/editorial) | | with syenite (andesine anorthosite) of Nelson County, Virginia..........................................topographic divisions of the Appalachian ranges. In Virginia the Blue Eidge Mountains form a fairly continuous...feet above sealevel; but southwestward through Virginia the ridge becomes broader and higher, and attains...above the sea are reached at several points in Virginia. The Blue Eidge is composed of a central core...the adjacent portions of the Piedmont Plateau in Virginia one of the dominant igneous rocks of granitoid |  | | Journal (article/letter/editorial) | | VIRGINIA MINERAL LOCAL INDEX Although perhaps best known for its turquoise crystals, apophyllite on...kyanite, Virginia has, in fact, over 150 mineral species. and D. A L L E N P E N I C K , JR. Virginia Division...Mineral Resources P. O. Box 3667 Charlottesville, Virginia 22903 T H I S V I R G I N I A M I N E R A L L...world-wide locality index. The localities are listed by county, followed by a listing of the most prominent minerals...source of information in this Virginia index was Minerals of Virginia (1970) by R . V . Dietrich. A l |  | | Book | | held in Blacksburg, Virginia, U .S.A., June 1997 Edited by A. KRISHNA SINHA Virginia Polytechnic Institute...Institute arul State Vniversity, Blacksburg, Virginia, V.SA. SPRINGER SCIENCE+BUSINESS MEDIA, B.V. A C...of the Grenville basement in the Blue Ridge of Virginia (from Sinha and Bartholomew, 1984 in The Grenville...Interpretations for the Precambrian, Midcontinent USA M.P. Car/son, S.B.Treves, R.J. Goble, A. Xu ......the Grenvillian Event of the Hudson Highlands, NY, USA A.E. Gates .... ............................... |  | | Report (volume) | | Proc.-Virginia Academy of Science Proceedings. Charlottesville, Va. Va. Geol. Survey Bull., County ser...ser.; Repr. ser.-Virginia Geological Survey Bulletin, County series; Reprint series. Charlottesville, Va...Va. Univ. Pubs.; Philos. Soc. Bull., Sci. ser.-Virginia University Publications; Philosophical Society...Peterson, R. G., 1952, Treatment of titaniferous magnetite ore from Iron Mountain, Wyo.: U.S. Bur. Mines...magnetit~-ilmenite deposits near Lake Sanford, Essex County, N. Y.: U.S. Geol. Survey Bull. 940-D, p. 99-123 |  | | Journal (issue) | | COMMONWEAL TH OF VIRGINIA DEPARTMENT OF MINES, MINERALS AND ENERGY Richmond, Virginia Published quarterly...GRENVILLE-AGE ULTRAMAFIC PLUTONS IN THE NORTHERN VIRGINIA BLUE RIDGE Stephen W. Kline, Arkansas Mining &...the Grenvillegranitoid basement terrane of the Virginia Blue Ridge, age granitoid basement terrane in...northern Middleburg quadrangle, Virginia. Primary magmatic textures Virginia~ The first documentation of...pseudoby Ho{1/atd (1981) on a geologic map of Loudoun County, morphic after magmatic phases. Rock types include |
|
