 | | Report (issue) | | the cover—Turquois crystals from Lynch Station, Virginia; x ca.; pho tograph by Neal Ycdlin; color plates...C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...of Virginia R. V. DIETRICH* Professor of Geology and Associate Dean of Arts & Sciences, Virginia Polytechnic...Polytechnic Institute Research Division Bulletin 47 Virginia Polytechnic Institute, Blacksburg, Va. 24061 *... © R. V. Dietrich and the Research Division of Virginia Polytechnic Institute, 1970 Printed and bound |  | | Journal (article/letter/editorial) | | R. V. DIETRICH Virginia Polytechnic Institute, Blac^sburg, Virginia P. D. FULLAGAR University of North...Maryland M. L. BOTTINO Ajax Company, Inc., Norfoll^, Virginia K/Ar and Rb/Sr Dating of Tectonic Events in the...the Appalachians of Southwestern Virginia Abstract: To investigate the effect of faulting on isotopic...sedimentary bedrock area near Blacksburg in Southwestern Virginia. Included are "Older Precambrian" gneiss(es);...± 100 m.y. (Rb/Sr, wholerock isochron) for the Grayson and Little River gneiss unit(s); the youngest are |  | | 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 |  | | Journal (article/letter/editorial) | | pegmatite was mined at Barringer Hill in Llano County in the early 1900s but was flooded by Lake Buchanan...on "The Weeks Pegmatite Mine, Wakefield, Carroll County, New Hampshire" (March/April 1991). i i • I...Galveston 41 Garza 42 Gillespie 43 Gonzales 44 Grayson 45 Hall 46 Hardeman 47 Hardin 48 Harris 49 Houston...66, May/June 1991 197 LOCALITIES BY COUNTY Bastrop County KEY mm T * ? — — — — best occurrence..."specimen quality" questionable occurrence Angelina County Lufkin, 1 mile N of Lufkin in railroad cuts, in |  | | 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) | | River allochthons _____ 7 Maryland and northern Virginia Piedmont allochthons_______________________ 8...postorogenic plutons in and adjacent to this belt from Virginia to Georgia yield ages of about 300 m.y. (Fullagar...Precambrian rocks. E3 Silver (1969) reported a U-Pb zircon age of 1,111 m.y. for charnockites of the Ticonderoga...the Nassau has been inter- relative. The name Grayson Granodiorite Gneiss (Di) preted as a graben facies...Fullagar and Odom (1973) for similar rocks in Grayson, County, Va., although Rankin and opening of the lapetus |  | | Journal (article/letter/editorial) | | .................................... 523 T he Virginia Piedmont r e g io n ............................o d u c t io n The general excellence of the Virginia granites as a building and mon umental stone...has been devoted by the writer to a study of the Virginia granites in the field and in the laboratory, and...t R e g io n geology The Piedmont province in Virginia forms a part of the eastern crys talline area...widens southward. Lack of system atic study of the Virginia Piedmont region forbids more than a general description |  | | Journal (issue) | | the Virginia Polytechnic Institute, Engineering Experiment Station Series, dealing with Virginia Mineral...Mineral Localities: Virginia Mineral Localities (1960 Edition) Virginia Mineral Localities (Supplement...(Supplement I) Virginia Mineral Localities (Supplement II) Virginia Minerals and Rocks (3rd Edition) Ex LIBRIS...\I i! II II BULLETIN OF THE ·, I !V I ii VIRGINIA POLYTECHNIC INSTITUTE Engineering Experiment Station...Series No. 151 Ii !I ·1 " ii :c H I I I I ! VIRGINIA MINERAL LOCALITIES ( SUPPLEMENT II ) By Richard |  | | Journal (article/letter/editorial) | | Research68 (1994) 81-95 ELSEVIER Precise U-Pb zircon ages of Neoproterozoic plutons in the southern...Carolina at Chapel Hill, Chapel Hill, NC 27599-3315, USA ReceivedJune l, 1993; revisedversionacceptedDecember...Ridge of Virginia; our age for the Crossnore Complex is 5-20 Ma younger than the U-Pb zircon age reported...reported for the Mount Rogers volcanics in Virginia. Thus, our new data, plus published data, suggest that...places. Available high-precision U-Pb analyses of zircon indicate that this rift-related magmatism occurred |  | | Report (issue) | | Pleare return thie publication to the Virginia Geological Survey when you have ao furthcr uc for it....COMMONWEALTH OF VIRGINIA STATE COMMISSION ON CONSERVATION AND DEVELOPMENT VIRGINIA GEOLOGICAL SURVEY... Bulletin 38 Kyanite in Virginia Geology of the Kyanite Belt of Virginia lrY ANNA I. JONAS Economic...JOEL H. W.ATKINS UNIVERSITY, VIRGINIA t932 COMMONWEALTH OF VIRGINIA STATE COMMISSION ON CONSERVATTON...DEVELOPMENT VIRGINIA GEOLOGICAL SURVEY ARTHUR BEVAN, State Gaolosist Bulletin 38 Kyanite in Virginia Geology |  | | Report (issue) | | Radioactive rare-earth deposit at Scrub Oaks mine, Morris County, New Jersey, by Harry Klemic, A. V. Heyl, Jr.,...deposits of the St. Regis-Superior area, Mineral County, Montana, by Arthur B. Campbell.____________________...mineral deposits of the Carlile quadrangle, Crook County, Wyoming, by M. H. Bergendahl, R. E. Davis, and...GEOLOGICAL SURVEY BULLETIN 1082-A A report on the zircon resources of .^Florida and other areas in the Coastal...the Southeastern Atlantic States; a report on the zircon resources of Florida and other areas in the Coastal |  | | Journal (issue) | | DECORATIVE-ORNAMENTAL STONES OF VIRGINIA D. Allen Penick, Jr. Virginia is noted particularly for beautiful...amazonite, fine moonstone, and topaz. In addition Virginia is well known for staurolite, prehnite, turquoise...minerals, rocks and organic materials found in Virginia, which have been used as gemstones and decora...report. Many of the localities will be familiar to Virginia mineral collectors. Someof the areas mentioned...collect minerals. There has been much written on Virginia mineral localities but no reports are available |  | | Report (volume) | | uranium in the Lassen lavas is concentrated in zircon. 207 208 3 SELECTED BIBLIOGRAPHIES OF URANIUM...proportion of minor accessories (sphene, apatite, and zircon). Part of the uranium and thorium is interstitial...and secondarily by an increase in the amount of zircon. The rocks of the New Hampshire magma series of...certain accessory minerals of granite, such as zircon, allanite, sphene, and apatite. Much of the uranium... particularly in monazite, xenotime, allanite, zircon, apatite, sphene, thorite, and rarer refractory |  | | Report (issue) | | volcanoes were present near Murfreesboro, in Pike County. They found here not ,only the rocks that ~nce..., nud Brnckett, R. N., The I1eridotite of Pike County, Ark.:Am. Sel., 311 sel'., vol. 38, pp. 50-59,...Ross, C. S., Diamond bCllring peridotite in Pike County, Ark.: U. S. Geol. Survey Bull. 735, pp. 291-292...northeastern Texas. In Arkansas and in McCurtain County, Okla., it forms the lower part Miser, H. D., and...Arkansas. The exposures in Arkansas and in McCurtain County, Okla., occur in a strip of high land lying only |  | | Report (issue) | | relations. _____________________ Gossan Lead of Virginia, _______________________ Location and topogra..._ Betty Baker mine...-----------------..---Grayson County sulphide zone. _____________ 58 58 59 59 60... Local descriptions Continued. Gossan Lead of Virginia Continued. Paragenesis of the Gossan Lead ore...______ Nickel-bearing pyrrhotite vein in Floyd County, Va._ Location and topography.__________________...not of the Ducktown type.__________ Virgilina, Virginia-North Carolina.-__-__-_--Arsenic veins, Craigford |  | | Report (volume) | | .........Prof. George H. Perkins, Burlington. Virginia...........Dr. Thomas L. Watson, Charlottesville...Washington....... Prof. Henry Landes, Seattle. West Virginia... .Dr. I. C. White, Morgantown. Wisconsin......See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Journal (article/letter/editorial) | | spinel, staurolite, topaz, tourmaline, tremolite, zircon, zoisite, and others. Although all these have been...the nonopaque, nonmicaceous minerals are common. Zircon and tourmaline, supplemented by some garnet, are...angularity is highly correlated with the angularity of zircon grains, the angularities of the quartz grains of...minerals are stable species and are principally zircon and tourmaline. POLYCRYSTALLINE QUARTZ .062.074...comparison to the Cambrian sandstones it is rather rare. Zircon and tourmaline are the principal heavy minerals |  | | Report (volume) | | North American Geology, 1957 By RUTH REECE KING, VIRGINIA M. JUSSEN, ELISABETH S. LOUD, and GEORGIANNA D...NORTH AMERICAN GEOLOGY 1957 By RuTH REECE KING, VIRGINIA M. JussEN, ELISABETH S. Loun, and GEORGIANNA D...Va. Div. Mineral Res. Bull.; Mineral Res. Circ.-Virginia Division of Mineral Resources Bulletin; Mineral...Va . .Jour. Sci.-Virginia .Journal of Science. Farmville, Va. Va. Minerals-Virginia Minerals. Charlottesville...Montpelier, Vt. W. Va. Geol. Survey Rept. Inv.-West Virginia Geological Survey Report of Investigations. Morgantown |  | | Book (edition) | | mmed at Broken Arrow aud Trout creek, in Sc. Clair county. The strata in this field are more faulted und...prong of Canoe creek, in St. Clair county, to Ha\sop creek, in Bibb county, a distance of 60 miles. Down to...to Helena, in Shelby county, the field has an average width of 5 or 6 miles. Below that point the width...miles being in the latitud" of Blocton, in Bibb county. The south ern end of this field has a greater...Jefferson county; Helena, Montevallo, and Brierfield, Shelby county; and at Blocion. Bibb county. The Warrior |  | | Report (volume) | | further subdivided by geographic areas (State and county) and by subjects, which include general, geology...the White Mountains, Mono County, Calif., and near Hawthorne, Mineral County, Nev. KYANITE Kyanite generally...extending from Virginia to Alabama. They occur at Baker Mountain, Prince Edward County, and Willis Mountain...Mountain, Buckingham County, in Virginia, and at Henry Knob, near Clover, York County, S.C. These are the...which are now being exploited for titanium and zircon. Eventually they may be recovered as byproducts |  | | Report (volume) | | ...... 51 Baltimore County .................................... 51 Howard County.......................CHAPTER III. GRANITES OF VIRGINIA ...................................... The Virginia Piedmont region ......77 77 CONTENTS. 5 CHAPTER III. GRANITES OP VIRGINIA Continued. PageScientific discussion Continued......... Chesterfield County (south of James River)................ Henrico County (north of James River)......................................... Fairfax County area ......................................... |  | | Report (volume) | | ............................................. Virginia......................................................................................... West Virginia.................................................See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities : Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20 S., R. 7 E.; |  | | Journal (article/letter/editorial) | | 24142, United States Department of Geosciences, Virginia Tech, 5041 Derring Hall (0420), Blacksburg, VA...Carolina from Bailey and Rose (1998). B. Uranium-lead zircon CA-TIMS ages of rhyolites from the Mount Rogers...1850 m. Aleinikoff et al. (1995) obtained a U–Pb zircon age of E. McClellan, E. Gazel / Lithos 206–207...al. (2012) reported CA (chemical abrasion)-TIMS zircon ages for all three units, ranging from ~ 750 to...maximum thickness of approximately 300 m. Single zircon CA-TIMS analysis of the Fees yielded an age of |  | | Book | | Geology and Virginia Richard V. Dietrich Professor of Geology and Dean School of Arts and Sciences,...University Press of Virginia Charlottesville Qt z.^.z THE UNIVERSITY PRESS OF VIRGINIA Copyright © 1970...by the Rector and Visitors of the University of Virginia First published 1970 Standard Book Number: 8139-0289-4...America To Frances, Rick, Kurt, Krista, and Virginia 161781 Digitized by the Internet Archive in...natives of Virginia and visitors to the Commonwealth—who are interested in geology and in Virginia. It attempts |  | | Journal (issue) | | ································-··· 345 WEST VIRGINIA UNIVERSI1Y TO DEDICATE NEW MINERAL INDUSTRIES...semi-opal) .................... G ALLIUM FOUND IN VIRGINIA BERYL. By Kent C. Brannock .. COLLECTORS' TALE... Peters in Chester County, and several places west of the point into Berks County. Two of the mining...operation for many years. THE CHESTER-MONTGOMERY COUNTY LEAD, ZINC, AND COPPER MINES All these mines are...Mont• Station in French Creek valley. First gomery County. In each mine the veins opened about 1850 and worked |
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