 | | Report (volume) | | Stratigraphy in the Northern Part of the Culpeper Basin, Virginia and Maryland GEOLOGICAL SURVEY BULLETIN 1422-C...Stratigraphy in the Northern Part of the Culpeper Basin, Virginia and Maryland By K. Y. LEE CONTRIBUTIONS TO GEOLOGICAL...stratigraphy in the northern part of the Culpeper Basin, Virginia and Maryland. (Contributions to stratigraphy)...1. Geology, Stratigraphic Triassic. 2. Geology Virginia. 3. Geology Maryland. I. Title. II. Series. III...Group in the northern part of the Culpeper basin, Virginia and Maryland ___________________________ In pocket |  | | Report (volume) | | of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia Prepared in cooperation with the...Survey, the National Park Service, and the 1oudoun County Department of Environmental Resources Cover:...Harpers Ferry. West Virginia, from the Loudoun Heights trail on Blue Ridge in Virginia. Photograph taken...of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia By Scott Southworth and David K...Survey, the National Park Service, and the Loudoun County Department of Environmental Resources Structure |  | | Report (issue) | | JL / Culpfeper and B arbour sville Basins, Virginia and Maryland C7 ll.S. / PAPER Triassic-Jurassic...Stratigraphy of the Culpeper and Barboursville Basins, Virginia and Maryland By K.Y. LEE and AJ. FROELICH U.S...stratigraphy of the Culpeper and Barboursville basins, Virginia and Maryland. (U.S. Geological Survey professional...Geology Culpeper Basin (Va. and Md.) 4. Geology Virginia Barboursville Basin. I. Froelich, A.J. (Albert...stratigraphy of the Culpeper and Barboursville basins, Virginia and Maryland. ......................... .....In |  | | Journal (article/letter/editorial) | | 1955 GEOLOGY OF CATOCTIN MOUNTAIN, MARYLAND AND VIRGINIA BY JOHN C. WHITAKER ABSTRACT Detailed mapping...of Catoctin Mountain in Maryland and northern Virginia indicates that the area is not a syncline as previously...revision of the stratigraphy. Strata mapped as Loudoun along the eastern border of Catoctin Mountain constitute...Cambrian-Precambrian boundary. .. 439 Introduction 456 Loudoun formation 441 Map pattern 457 General 441 Structure...General 442 Mica orientation 460 Banded quartzite 443 Quartz orientation 460 Thin-bedded quartzite 443 Conclusions |  | | 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 (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 (issue) | | NOVEMBER 1992 VOL. 38 INTERESTING USES OF STONE IN VIRGINIA - PART I Harry W. Webb' and Palmer C. Sweet e...and soapstone have been or are being quarried in Virginia. Some 350 interesting uses of dimension stone...rock types quarried for dimension stone uses in Virginia include amphibolite schist, conglomerate, diabase...soapstone. The quarrying of most dimension stone in Virginia is uneconomical today because of the relatively...and uses of various types of dimension stone in Virginia. Architectural terms are defied in the Appendix |  | | Report (issue) | | Shale and Sandstone in Fairfax, Loudoun,and Prince William Counties, Virginia GEOLOGICAL SURVEY CIRCULAR...Shale and Sandstone in Fairfax, Loudoun, and Prince William Counties, Virginia By Paul M. Johnston GEOLOGICAL...ILLUSTRATIONS Figure 1. The Triassic rocks of Northern Virginia------------------------------------- Page IV...Triassic rocks of Fairfax, Loudoun and Prince William Counties, Virginia _----__-------_------------III...northern Virginia >A' DISTRICT \ Ground-Water Supplies in Shale and Sandstone in Fairfax, Loudoun, and |  | | Report (volume) | | Geology of the Waterford Quadrangle, Virginia and Maryland, and the Virginia Part of the Point of Rocks Quadrangle...Ridge province and Culpeper basin in northern Virginia and Maryland UNITED STATES GOVERNMENT PRINTING...Geology of the Waterford quadrangle, Virginia and Maryland, and the Virginia part of the Point of Rocks quadrangle...references. Supt. of Docs. no.: I 19.3:2095 l. Geology-Virginia. 2. Geology-Maryland. I. Burton, William C. (William............................................. .. Loudoun Formation .................................... |  | | Report (issue) | | Geology of the Northern Part of the Culpeper Basin, Virginia and Maryland by K. Y. Lee U.S. Geological Survey...Geology of the Northern Part of the Culpeper Basin, Virginia and Maryland; by K, Y, Lee Introduction The Culpeper...here, cover about 1060 km , of which 82% is in Virginia and the remainder is in Maryland (Fig. 1). Figure...subdivided the red bed sequence of sedimentary rocks m Virginia which he thought to be entirely of Triassic age...000, in the Northern Part of the Culpeper Basin,Virginia and Maryland lowest stratigraphic unit of the |  | | Report (issue) | | Geologic map of the Loudoun County portion of the Middleburg quadrangle, Virginia by Stephen W. Kline1...accompanies J~~" Prepared in cooperation with Loudoun County Department of Natural Resources This report...or the Loudoun County Department of Natural Resources. George Mason University Fairfax, Virginia 22030...22030 2U.S. Geological Survey Reston, Virginia 22092 The Culpeper basin portion of this map is based on...Mountains and consists of subrounded quartzite, vein quartz, greenstone and phyllite. Streams draining the |  | | Journal (article/letter/editorial) | | CONGLOMERATE NEAR CULPEPER,VIRGINIA RonBnr O. Broouon, (Jniaersity of Virginia. Stilbite has been collected...opened about 1920 on the southern edge of Culpeper, Virginia, near U. S. Highway 15. Its occurrence is not...Quarry, Virginia. glomerate, described by Roberts in 7928.r The entire Triassic series of Virginia, as far...member varies in composition in various parts of Virginia. In the vicinity of Leesburg, the pebbles and...been altered to epidote. Occasional pebbles of quartz are found in the conglomerate. This member of the |  | | Journal (article/letter/editorial) | | Bull Run Quarry Loudoun County, Virginia H O W A R D R. F R E E L A N D 10340 Hollyberry Drive Richmond...Richmond, Virginia 23234 Most collectors are familiar with fine prehnite, apophyl lite, and zeolite specimens...1977), and at the Fairfax quarry near Centreville, Virginia (Medici, 1972; Mitchell, 1977). There are several...several other "trap" quarries in northern Virginia which have yielded beautiful and sometimes rare minerals...environments. Bull Run quarry located in Loudoun County, Virginia, is one such quarry. To date, nearly twenty |  | | 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 |  | | 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 |  | | Journal (article/letter/editorial) | | the type locality in Goose Creek quarry, Loudoun County, Virginia. The structure was further characterized...determination (Rouse and Peacor1986). Samples from Loudoun County occur in vugs in altered seams that cut diabase...from two sources: the type locality in Loudoun County, Virginia, U.S.A. (kindly provided by the Smithsonian...from both Loudoun County and Jalgaon Quarries were mounted in open 0.2 mm diameter quartz glass capillaries...sample names indicates Indian goosecreekite). The Loudoun sample was first measured at room temperature, |  | | Journal (issue) | | Run Quarry Loudoun County, Virginia Brander Robinson P.O. Box 76 1 Midd lesburg, Virginia 20 11 8 Harold...a co llecting trip to the Bull Run Quarry, Loudoun County, Vi rgini a. This quarry has been in operation...with minor stilbite , Bull Run Quarry, Loudoun County, Virginia collected by Brander Robinson, July 1998...than 1 mm long from the Blackbird District, Le mhi County, Idaho, photo by the author. and gives me something...from the Blac k Cloud Mine, Lead ville, La ke ~ County, Colorado, photo by the auth o r. W, anglesite |  | | Journal (issue) | | that the average natural radiation background for Virginia is 125 mrem. Natural background sources account...aspects of radon and radioactivity published in Virginia Minerals are by Lasch (1988), Johnson (1979),... and Johnson, Gathright,and Henika (1979). VIRGINIA DIVISION OF MINERAL RESOURCES Vol. 37 Table 1... 1.5 5.6 - 1.0 1.4 - .46 - 7.3 - (I VIRGINIA MINERALS. URANIUM-THE ELEMENT Uranium was first...the other two are nitrogen and phosphorus. 12 VIRGINIA DIVISION OF MINERAL RESOURCES URANIUM, THORIUM |  | | Report (issue) | | Montgomery County and Prince Georges Counties, Maryland, and Arlington and Fairfax Counties, Virginia, by A...cooperation with the University of Maryland Baltimore County, the U.S. Bureau of Census, and others. Further...Washington-Baltimore Urban Area PROCEEDINGS RESTON, VIRGINIA APRIL 23, 1997 Edited by J. Wright Horton, Jr...Washington-Baltimore Urban Area: proceedings, Reston, Virginia, April 23,1997 / edited by J. Wright Horton and...Geological Survey (MGS), with assistance from the Virginia Division of Mineral Resources. It was convened |  | | Report (issue) | | ^ Anne Arundel County 43 Baltimore County 45 Howard County - Montgomery County 88 Prince Georges...Georges County Virginia 74 . 120 129 Arlington County 129 Fairfax County 131 Fauquier County 139...139 Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS...forming a ridge north of Route 7 near Dranesville, Virginia. Figure 7. Locations of mineral deposits in...mines in the Soldiers Delight region, Baltimore County, Maryland. Adapted from Pearre and Heyl , 19.60 |  | | Report (issue) | | SITES IN THE VIRGINIA-WASHINGTON, D.C.-MARYLAND METRO AREA TO OBSERVE OR COLLECT BACTERIA THAT PRECIPITATE...gov/publications/text/Norriemicrobes. html > SITES IN THE VIRGINIA-WASHINGTON, D.C.-MARYLAND METRO AREA TO OBSERVE...PRECIPITATE IRON AND MANGANESE OXIDES VIRGINIA VA Site 1A. Fairfax County, Huntley Meadows Park: From the Beltway...first glance, to be an nil-film VA Site IB. Fairfax County, Huntley Meadows Park, back entrance: BOOTS ARE...from the manganese oxide coats. VA Site 2. Fairfax County, South Kings Highway retaining wall: This site |  | | Journal (article/letter/editorial) | | quarry, Goose Creek, Loudoun County, Virginia. Massive epidote associated with quartz and andradite garnet...Hill, Calaveras County, California. Rockhounds of North Carolina and southern Virginia have been making...of green epidote, flesh colored orthoclase, and quartz. Epidote should be represented in every collection |  | | Journal (article/letter/editorial) | | North America; the rare earth pegmatitesb of Llano County (Texas), Minas Geraes(BraziI), Ytterby (Sweden)...to the Late Ordovician (Taconic revolution).e Virginia and the Carolinas a Landes, Kenneth K., Origin...pp. 11-13, 1933 8 Bastin, Edson S., Feldspar and quartz deposits of southeastern New York: U. S. Geol.Straey...1lBoth tin and tungsten minerals occur in pegmatitic quartz veins accompanying the Paleozoic granites of western...of the Amelia, Goochland, and Ridgeway areas, Virginia: Am Jour. Scr. (5), vol. 17, pp. 543-547,1929 |  | | Report (issue) | | diabase and basalt of the northern Culpeper basin, Virginia by K. I. Lee1 , B.D. Leavy2 , and David Gottfried1...nomenclature. U. S. Geological Survey Reston, Virginia %ew Mexico Institute of Mining and Technology...diabase and basalt of the northern Culpeper basin, Virginia by K. Y. Lee, B. D. Leavy, and David Gottfried...Gottfried Geology of the Culpeper basin, Virginia The Culpeper basin (fig. 1) is a north-northeast-trending faulted...in the northern part of the Culpeper basin in Virginia (Appendix 1A, IB, and fig. 2). Sampling and analysis |  | Aleinikoff, John N, Burton, William C, Lyttle, Peter T, Nelson, Arthur E, Southworth, C.Scott (2000) U–Pb geochronology of zircon and monazite from Mesoproterozoic granitic gneisses of the northern Blue Ridge, Virginia and Maryland, USA. Precambrian Research, 99 (1) 113-146 doi:10.1016/s0301-9268(99)00056-x | Journal (article/letter/editorial) | | gneisses of the northern Blue Ridge, Virginia and Maryland, USA John N. Aleinikoff a, *, William C. Burton...963, Denver, CO 80225, USA b US Geological Survey, MS 926A, Reston, VA 22092, USA c US Geological Survey...Survey, MS 908, Reston, VA 22092, USA Received 29 March 1999; accepted 23 July 1999 Abstract Mesoproterozoic...of the northern Blue Ridge geologic province in Virginia and Maryland. Lithology, structure, and U–Pb geochronology...groups: (1) garnetiferous metagranite (1077±4 Ma) and quartz-plagioclase gneiss (1077±4 Ma); (2) white leucocratic |
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New Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA