 | | Report (issue) | | C. A. Michael. COLD NUGGET FROM SPOTSYLVANIA COUNTY: Longest dimension approximately 13 cm., photograph...during the preparation of the "Virginia Mineral Localities" series of bulletins v 1 Introduction This...This eighth publication in the Virginia Aimeral Localities series is comprehensive in that it includes the...last (fourth) supplement to Virginia Mineral Localities, 1960 Edition. The additional data include nearly...updated “check list” just alluded to, (2) a county-by-county listing of the minerals, and (3) resumes of |  | | Report (issue) | | minerals, especially the accessory minerals such as zircon, apatite, and monazite, and part is deposited as...in 1874 at Mauch Chunk (now Jim Thorpe), Carbon County, Pa. ('Genth, 1875, p. 144B). In 1898 a deposit...vanadiferous sandstone was found at Roc Creek, Montrose County, Colo. This deposit was soon exploited for the...Uranium minerals Sources of data ARIZONA Apache County Jerome Chee prospect_ __________ Morrison 1_____...and limy Carbonized logs and other Sab Tab, and unnamed sandstone and greenishplant remains abundant. mines |  | Pritchard, Adam C., Turner, Alan H., Nesbitt, Sterling J., Irmis, Randall B., Smith, Nathan D. (2015) Late Triassic tanystropheids (Reptilia, Archosauromorpha) from northern New Mexico (Petrified Forest Member, Chinle Formation) and the biogeography, functional morphology, and evolution of Tanystropheidae. Journal of Vertebrate Paleontology, 35 (2) doi:10.1080/02724634.2014.911186 | Journal (article/letter/editorial) | | author. New data on small reptiles come from localities with higher preservation potential for small...preserve fossil vertebrates and include three major localities: the Canjilon, Snyder, and Hayden quarries (Irmis...stratigraphy). Radioisotopic work yielded a detrital zircon chemical abrasion–thermal ionization mass spectrometry...Forest Member of the Chinle Formation, Rio Arriba County, New Mexico, U.S.A. Downloaded by [UQ Library]...(Bremer D 4, GC [Frequency Difference] D 88) Unnamed Clade (Amotosaurus C Tanystropheus) C (Langobardisaurus |  | | Report (issue) | | Counties in northwestern New Mexico; and San Juan County in southeastern Utah (fig. 1). The Hopi Indian...Accessory n1inerals are apatite, titanite, and zircon. Navajo Mountain is a high slightly elliptical...Boundary Butte. Near Boundary Butte and unnamed localities Dikes Same material as the neck; wallrock...angles to Comb monocline. Garnet Ridge and unnamed localities Diatremes Breccia consisting of fragments...Monument Valley-Navajo Mountain region, San Juan County, Utah: U.S. Geol. Survey Bull. 865, 106 p. 1 j |  | | Journal (article/letter/editorial) | | Alberta Canada T3B 4T7 mmenzies@shaw.ca Jefferson County, Montana P erched high on the south-facing side...described a number of these historic localities, all in Jefferson County. Present-day collectors are continuing...No. C24308 filed by E. E. DeSnell with Jefferson County on 26 November 1918 for “The Gemstone Claim.” References...lustrous microcrystals with typical dipyramidal habit. Zircon, ZrSiO4, has been sight identified as a single...subhorizontal, layered pegmatite-aplite dikes in San Diego County, California, as described by London (2008) and |  | | Report (issue) | | 31 University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs... Majuba Hill Mine, Antelope district, Pershing County. N. Prenn collection. Photograph by J. Scovil.... PART 3 6 2 Joseph V. Tingley Nevada Type Localities II MINERAL COLLECTING A Personal Nevada Collecting...Goodsprings (Yellow Pine) Mining District, Clark County John C. Kepper 91 References 467 Contributors...from the top 30 Nevada mining districts 8 Type localities in Nevada 42 Minerals in Carlin-type deposits |  | | Report (issue) | | volcanoes... = «esac. tsa cae einen le ele eee ie ee Unnamed volanoes® oc. sei atin cine 4 cieios «oes wines...Asia shown in black. Numbers correspond to the localities described in Part 1 of this paper. Note that...system. This has not been possible for all the localities; those are therefore appended with question marks...60 km in length and apparently erupted from an unnamed Late Pleistocene shield volcano. Another flow is...centered at approximately 44.25°N, 130°E. 16. Unnamed (45 N, 130.5 E). A lava plateau extending approximately |  | | Journal (issue) | | AMBL YGONITE COLUMBITE RUTILE ILMENITE BERYL ZIRCON AND OTHER MINERALS BUYERS OF MINERALS ORES CONCENTRATES...is normally white to pale grey, bu,t in most localities it contains numerous nodules and veins of pink...River mouth; and at a number of other but unnamed, localities along the south-western and southern shoreline...Tertiary limestones of White Cliffs and other localities. LATER PHYSIOGRAPHIC DEVELOPMENT OF SAN ... It is covered largely by limestone, in some localities resulting in kaarst-like topography and, although |  | | Report (issue) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference |  | Miller, Marti L., Tucker, Robert D., Layer, Paul W., Bundtzen, Thomas K. (2000) Isotopic ages from intrusive rocks near the Stuyahok gold placer deposits, south-central Holy Cross quadrangle, Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180437 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | Bradley, Dwight C., Parrish, Randall, Clendenen, William, Lux, Daniel R., Layer, Paul W., Heizler, Matthew, Donley, D. Thomas (2000) New geochronological evidence for the timing of early Tertiary ridge subduction in southern Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180636 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | Farmer, G. Lang, Goldfarb, Richard J., Lilly, Michael R., Bolton, Bob, Meier, Allen L., Sanzolone, Richard F. (2000) The chemical characteristics of ground water near Fairbanks, Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180667 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | Muhs, Daniel R., Ager, Thomas A., Been, Josh M., Rosenbaum, Joseph G., Reynolds, Richard J. (2000) An evaluation of methods for identifying and interpreting buried soils in late Quaternary loess in Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180665 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | Kelley, Karen D., Leach, David L., Johnson, Craig A. (2000) Sulfur-, oxygen-, and carbon-isotope studies of Ag-Pb-Zn vein-breccia occurrences, sulfide-bearing concretions, and barite deposits in the north-central Brooks Range, with comparisons to shale-hosted stratiform massive sulfide deposits: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180671 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | Wanty, Richard B., Wang, Bronwen, Vohden, Jim, Briggs, Paul H., Meier, Allen L. (2000) Regional baseline geochemistry and environmental effects of gold placer mining operations on the Fortymile River, eastern Alaska: A section in Geologic studies in Alaska by the U.S. Geological Survey, 1998. Professional Paper Vol. 1615. US Geological Survey doi:10.3133/70180645 | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference | | | Report (volume) | | Donley Abstract We present new U/Pb (monazite, zircon) and 40Ar/39Ar (biotite, amphibole) ages for 10...pluton of Sanak Island yielded ages of 61.1±0.5 Ma (zircon) and 62.7±0.35 (biotite). The Shumagin pluton of...of Big Koniuji Island yielded a U/Pb zircon age of 61.1±0.3 Ma. Two biotite ages from the Kodiak batholith...Geological Survey of Canada, obtained U/Pb ages on zircon and monazite separates from two of Clendenen’s...Chugach-Prince William composite terrane, and localities mentioned in text. Numbers along dashed reference |  | | Journal (volume) | | specimens was recorded at Nkalonje Hill and at other localities in altered gneisses in the vicinity of vents...particularly in B15, is allanite ( orthite ) . Zircon has not been observed in any specimen of syenite...apatite, and, in another grain , was a zircon—the only zircon observed in the whole collection . The...they describe ( Dixey at al . , 1937 ) come from localities at the Northern foot of the Mlanje Mountains...Crab Hill Point, Portland , but at none of these localities have the gigantic forms been found . A collection |
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