 | | Report (issue) | | is composed of quartz, orthoclase, and biotite; zircon, sphene, and allanite are common accessories (Moxham...FIGURE I ILimestone Dl '}~~ and dolomite > ~ wul- <(0::: 1-w Silicified rImestone . copper mmerals...including a strong set of normal faul.ts striking about north to N. 15Ā°-20Ā° E., cut the thrust plates and, locally...Humboldt Creek (fig. 2) flows northeastward from the north peak of Ā·Midnight Mountain, and joins the Goodhope...to some other placer tin deposits of the world (Nigeria, for example) that contain economic amounts of |  | Wulff-Pedersen, E., Neumann, E. -R., Vannucci, R., Bottazzi, P., Ottolini, L. (1999) Silicic melts produced by reaction between peridotite and infiltrating basaltic melts: ion probe data on glasses and minerals in veined xenoliths from La Palma, Canary Islands. Contributions to Mineralogy and Petrology, 137 (1) 59-82 doi:10.1007/s004100050582 | Journal (article/letter/editorial) | | (1999) 137: 59 Ā± 82 Ć Springer-Verlag 1999 E. WulĀ-Pedersen Ć” E.-R. Neumann Ć” R. Vannucci P. Bottazzi...interdiĀusion proĀ®les in olivine porphyroclasts adjacent E. WulĀ-Pedersen Ć” E.-R. Neumann (&) Mineralogical-Geological...1994; Neumann and WulĀ-Pedersen 1995; Schiano et al. 1995; Zinngrebe and Foley 1995; WulĀ-Pedersen et al...metasomatic transport agents (Zinngrebe and Foley 1995; WulĀPedersen et al. 1996a; Draper and Green 1997). Mantle...Whitehouse and Neumann 1995; WulĀ-Pedersen et al. 1996a; Neumann and WulĀ-Pedersen 1997; E.-R. Neumann |  | | Journal (article/letter/editorial) | | muscovite, green epidote, pinkish garnet, colorless zircon which fl. orange under the Mineralight, and some...from the H.L. Haralson morphite, wulfenite and zircon sands. The galena sand is medium grained Salmon...commercial Minerals in it. You will note there is some zircon as well as other mineThis is a dark red, coarse...Oval, New York net with minor amounts of orange wul- 62, N.Y. fenite, colorless cerussite, colorless...consists chiefly of quartz (colorless, smoky) with Zircon Sand from Loudville, Mass. This is a fine grained |  | | Journal (article/letter/editorial) | | Baltica, rotating anticlockwise, began to move to the north and west leading to an equatorial position in the...in clear contrast to the generally westerly or north-westerly trends of the metallogenic belts in the...Cook et al. 1998). The Mofjell deposit further north, hosted mainly by metapelitic quartz-micafeldspar...described by Juve (1967). Similar deposits occur on the north side of the fjord at SkogĆ¹y (Torgersen 1935), Villdalsfjell...and Vokes 1963), as well as at Gamvik, further north. The lead isotope abundances of the stratabound |  | Ayuso, R. A., Kelley, K. D., Leach, D. L., Young, L. E., Slack, J. F., Wandless, J. F., Lyon, A. M., Dillingham, J. L. (2004) Origin of the Red Dog Zn-Pb-Ag Deposits, Brooks Range, Alaska: Evidence from Regional Pb and Sr Isotope Sources. Economic Geology, 99 (7) 1533-1553 doi:10.2113/gsecongeo.99.7.1533 | Journal (article/letter/editorial) | | e-mail, rayuso@usgs.gov *Present address: 12015 North Fairwood Drive, Spokane, Washington 99218. 036...former passive continental margin of ancestral North America that collided with a southern oceanic terrane...Dog are arranged broadly in a trend from south to north: Qanaiyaq, Main, Aqqaluk, and Paalaaq (Fig. 1)....Cr Weasel Creek Red Dog deposits Ferric Cr Tak Wul Lightning Deadlock Creek Mtn Robinson Creek 707...2004). Abundant carbonate turbidites are present north of the Paalaaq deposit at Anarraaq, and calcareous |  | | Journal (article/letter/editorial) | | GINNY CREEK ANARRAAQ SUDS GULL SU MOIL RED DOG WUL HUSKY LAKEVIEW SAFARI CREEK AHNOWAY STORY CREEK...Gull, Lakeview, Moil, Nimiuktuk, Red Dog, Su, Tuck, Wul, Wulik Anarraaq, Drenchwater, Red Dog, Su-Lik, Ferric...g., Anarraaq), some are barite only (Moil, Gull, Wul), and some are sulfide only (Su-Lik). Scale is approximate...significant. Fission-track analyses of apatite and zircon in the Red Dog area indicate burial depths of about...analysis of gravity anomalies, and drill indications north of the Main deposit resulted in the discovery of |  | | Journal (article/letter/editorial) | | Finero harzburgite, 11 Ā“ 1 km wide, is the most north-easterly lens of the peridotite bodies occurring...interacted with alkaline melts (Zinngrebe and Foley 1995; WulĀ-Pedersen et al. 1996), but it is uncommon, as far...1995). The alkaline dykes at Finero have a Triassic zircon age (225 Ā 13 Ma) and initial 87Sr/86Sr(225) Ā...Kober B, Michard A, Puchelt H, Scheider W (1990) Zircon syenite pegmatites in the Finero peridotite (Ivrea...Cosmochim Acta 59: 1763Ā±1771 Vannucci R, Bottazzi P, WulĀ-Pedersen E, Neumann ER (1998) Partitioning of REE |  | Beaty, David W., Cunningham, Charles G., Rye, Robert O., Steven, Thomas A., Gonzalez-Urien, Eliseo (1986) Geology and geochemistry of the Deer Trail Pb-Zn-Ag-Au-Cu manto deposits, Marysvale District, west-central Utah. Economic Geology, 81 (8) 1932-1952 doi:10.2113/gsecongeo.81.8.1932 | Journal (article/letter/editorial) | | 557) estimated transition between the Colorado Plateau and the bathat between then and 1917, about 10...andesitc lava flows. In the northern Tushar Mountains north and northwest of Deer Trail Moun- tain, the Bullion...Trail anticline(Fig. 3), a few feet either to the north or south,and hasnotable a relationshipthat was usedto...The of a group of individual mantosthat flank a north- mantoore is typicallythickestat its intersectionwith...that trend east-northeast and dip steeply to the north are exposedin the mine workingsin the 8600 area |  | Ren, Yunfei, Chen, Danling, Hauzenberger, Christoph, Liu, Liang, Liu, Xiaoming, Zhu, Xiaohui (2016) Petrology and geochronology of ultrahigh-pressure granitic gneiss from South Dulan, North Qaidam belt, NW China. International Geology Review, 58 (2) 171-195 doi:10.1080/00206814.2015.1058729 | Journal (article/letter/editorial) | | ultrahigh-pressure granitic gneiss from South Dulan, North Qaidam belt, NW China a a b a a Yunfei Ren...ultrahigh-pressure granitic gneiss from South Dulan, North Qaidam belt, NW China, International Geology Review...ultrahigh-pressure granitic gneiss from South Dulan, North Qaidam belt, NW China Yunfei Rena, Danling Chena...chemistry, metamorphic PāT path modelling, and zircon UāPb dating was conducted on a granitic gneiss...gneiss and enclosed eclogite from South Dulan, North Qaidam UHP (ultrahigh-pressure) belt. The result shows |  | | Book | | mind: and other de- 4 Berks!Li1'C Iiistoriml wul ScientĀ·ific: Sol'iety. of college. P:irtlllent....found-to tltc ,;urpri Ā·c of om gcolorri:at Ā·-j11st north in the slate of Po11gl1kccpsic, and 1n:111r . more...cnstcrn De1Ā·kshi1Ā· i part of an elevated plateau-the plateau of the G reen :Mo1111t:iins. The most prominent...1110 t common along the ascent of the ca tcl'll plateau, 1 m l it a l Ā·u u<:Ā cms in places over it.,;...'on the land of ofr. G)]Json. five or si x mileĀ· north of "Wil liams College," and attributed its Ol'igin |  | Masuda, A., Shimizu, H., Nakai, S., Makishima, A., Lahti, S. (1988) 138La Ī²-decay constant estimated from geochronological studies. Earth and Planetary Science Letters, 89 (3) 316-322 doi:10.1016/0012-821x(88)90119-7 | Journal (article/letter/editorial) | | REI:" Microanalysi.~, D~Tartment of ('hemist O, f~wul O, Ā¢~[Sctence, Universi O" e~f Tok.vo. Ilongo, Tokvo...monzonite and associated granitic varieties; the U-Pb zircon age of the monzonite is reported to be 1887 + 16...surrounding Pernit5 granite, for which the U-Pb zircon age of 1,840 -+_8 Myr is obtained [13]. The third...consistent with field observation and the U-Pb zircon age [10,13] of the surrounding rocks in each case |  | | Journal (article/letter/editorial) | | must depend upon the det.erminatlon of two monds, zircon, topaz, quartz in several varieties, chromite,...unusual hardness dropping between the jaws. water wUl escape through the valve, and breakage Of the machlne |  | | Journal (article/letter/editorial) | | must depend upon the det.erminatlon of two monds, zircon, topaz, quartz in several varieties, chromite,...unusual hardness dropping between the jaws. water wUl escape through the valve, and breakage Of the machlne |  | | Report (issue) | | Stop 954, Denver, Colorado 80225 GEOLOGY OF THE NORTH END OF THE SALT VALLEY ANTICLINE, GRAND COUNTY,...Jurassic Rocks f aY^T/^T* V^diljr wiik f T^/^MtT^ V71. WUL/ 17 Ā«Ā»Ā«Ā«Ā«Ā»^^ Ā« Ā« Ā« ^^ Wingate Sandstone ITa...drainage, and roads at north end of Salt Valley anticline 5 3. Geologic map of the north end of the Salt Valley...Cenozoic sedimentary rock formations exposed at the north end of the Salt Valley ant ic J.me ^' '' iii...Stop 954, Denver, Colorado 80225 GEOLOGY OF THE NORTH END OF THE SALT VALLEY ANTICLINE, GRAND COUNTY, |  | Wang, Xinyu, Wang, Shulai, Zhang, Huiqiong, Wang, Yuwang, Zhu, Xinyou, Yang, Xing (2022) Geochemical Characteristics of the Mineral Assemblages from the Niukutou Pb-Zn Skarn Deposit, East Kunlun Mountains, and Their Metallogenic Implications. Minerals, 13 (1) 18 doi:10.3390/min13010018 | Journal (article/letter/editorial) | | East Kunlun Mountains, on the northern Tibetan Plateau (Figure 1a; [1ā7]). Skarn deposits in the QMB can...CuāPbāZn deposit, East Kunlun Mountains, NW China: Zircon chronology and tectonic implications. Ore Geol...deposit, East Kunlun Mountains, northern Tibetan Plateau. Ore Geol. Rev. 2018, 93, 19ā37. [CrossRef] Gao...window to the crustal evolution in northern Tibetan Plateau. Earth Sci. Rev. 2017, 167, 103ā123. [CrossRef]...NW China: Constraints from accessory minerals (zircon and apatite). Miner. Depos. 2018, 53, 855ā870. |  | Waight, Tod E., Wiebe, Robert A., Krogstad, Eirik J., Walker, Richard J. (2001) Isotopic responses to basaltic injections into silicic magma chambers: a whole-rock and microsampling study of macrorhythmic units in the Pleasant Bay layered gabbro-diorite complex, Maine, USA. Contributions to Mineralogy and Petrology, 142 (3) 323-335 doi:10.1007/s004100100292 | Journal (article/letter/editorial) | | poikilitic olivine crystals. Large corroded apatite and zircon crystals (Ā³600 lm), which probably grew at the...1993a). Accessory phases include opaques, apatite, zircon and allanite. The most maĀ®c rocks in the intrusion...basaltic and rhyolitic magma beneath the Yellowstone Plateau volcanic Ā®eld. J Petrol 32:63Ā±138 Hogan JP, Sinha...Indies. Geophys Res Lett 25:3433Ā±3436 Neumann E-R, WulĀ-Pedersen E, Simonsen SL, Pearson NJ, MartĆµĆ J, Mitjavila... Maas R, Eby GN (1998) The Hohonu Batholith of North Westland, New Zealand: granitoid compositions controlled |  | | Journal (article/letter/editorial) | | Middle Kalgoorlie Group, are 2,708 Ā± 7 Ma old (UāPb zircon; Nelson 1997). The Williamstown gabbro sill separating...tholeiitic pillow basalts is dated at 2,696Ā±5 Ma (UāPb zircon; Fletcher et al. 2001) and the Golden Mile Dolerite...were mined within the oxide zone, and the Hannanās North Lode is the only one recording significant underground...offset dykes dated at 2,674Ā±6 to 2,669Ā±6 Ma (UāPb zircon). Fuchsites from D2 lodes in the Mt Charlotte area...Boulder-Lefroy (BLF) strike-slip faults. The Hannanās North (HNL), Mystery (MSL), Golden Dream (GDL), Hidden |  | | Journal (article/letter/editorial) | | elsevier.com/locate/gr Destruction of the eastern North China Craton in a backarc setting: Evidence from...direction The eastern North China Craton Oceanic plate motion a b s t r a c t The eastern North China Craton...It is now well documented that the part of the North China Craton (NCC) east of the NNE-trending Taihang...the NCC and the SiberianāMongolian blocks at the north (e.g. Zhai et al., 2007), ā Corresponding author...China Craton Bengbu Shou-Din g Fault Lujang North Dabie MCC(142 Ma) Mongolia 34Ā° 00ā Sulu Xiangshui |  | | Journal (issue) | | Handcrafted Jewellery BELL GROVE ARENA AT SCIENCE NORTH 100 Ramsey Lake Road, Sudbury Sudbury Rock an d...L-- - -_;:...:;,;;_:__ _ _ _ _ _ _ _ _ __ _ __ NORTH ~i''.ll'.',~ NORD 4 Cab & Crystal Mayflunc 1988...ours ln all its many facets is worth it. SCIENCE NORTH GOES ON A DINOSAUR DIG Science Nonh has planned...'Badlands' where the Voodoos are locaied. Science North is looking for 12 volunlcer workers who are interested...Bancroft tents. We hope some of the original organizers wUl be with "The rocks of t h e Grenville m ay mean your |  | | Report (issue) | | Kokkilai Lagoon and KokkHai village as seen looking north from th~ northern end of Pulmoddai placer-----...of Pulmoddai placer--------------------B. Rocky north shore of Arisama l i in foreground; south end of...of Pleistocene ferruginous conglomerate on the north shore of Ari.samali---------------------- B. 27...continues offshore into Bay of Bengal; view looking north about 2 miles south of Kokkilai Lagoon------Ā·Ā·-...about 75 percent is ilmenite and 20 percent is zircon and rutile, is chiefly quartz. The balance This |  | | Journal (article/letter/editorial) | | Alaska LORNE E. YOUNGā Consulting Geologist, 12015 North Fairwood Drive, Spokane, Washington 99218 Abstract...Abstract The Brooks Range is a 950-km-long north-vergent fold and thrust belt, which was formed during Mesozoic...extensional sags or half-grabens in the subsurface north of the Brooks Range. Climate, terrestrial ecosystems...physiographic elements (Fig. 1a), from south to north: the Yukon-Koyukuk borderlands, Brooks Range, and...Arctic foothills and Arctic coastal plain of the North Slope (Patton and Box, 1989; Grantz et al., 1990a) |  | Liu, Junlai, Ji, Mo, Ni, Jinlong, Shen, Liang, Zheng, Yuanyuan, Chen, Xiaoyu, Craddock, John P. (2021) Inhomogeneous thinning of a cratonic lithospheric keel by tectonic extension: The Early Cretaceous Jiaodong PeninsulaāLiaodong Peninsula extensional provinces, eastern North China craton. GSA Bulletin, 133 (1). 159-176 doi:10.1130/b35470.1 | Journal (article/letter/editorial) | | PeninsulaāLiaodong Peninsula extensional provinces, eastern North China craton Junlai Liu1,ā , Mo Ji2, Jinlong Ni3...provinces (JEP and LEP, respectively) of the eastern North China craton are typical areas where the cratonic...of tectonic extension of contiguous areas of the North China craton and the remobilization of other cratons...studies, however, reveal that some cratons (e.g., the North China, Wyoming, and Brazilian cratons; Kusky et...totally lose their lithospheric roots (e.g., the North China craton: Wu et al., 2008; the Indian craton: |  | | Report (issue) | | divided into three physio- Er^jfcic provinces Ā£raĀ«: north to scittu: thĀ« .Arctic Coastal /Main prvvinco,...tJirust faults trith resultant displacements to tho north produce a eot^&ox structure within tho laountains...v#!c -v.'v\ ' ~ , i. i . ' t ' i ! > ; ; Zoned zircon i 1 cxj ? ^c ! v> '8 > i "-J"' Jt""JI " "...H f "" I Zoned aircon Zoned Ā«lrcon Zoned zircon H1 NO c Zoned sircon be authigonic Zoned aircon....... . o' O c* Zoned zircon lal ftlrcon Garnet grains etched 4s 1 zircon Garnet grains etched liil |  | | Journal (issue) | | FOOTE , WARREN M . FOOTE , Manager . 1224 - 26 - 28 NORTH FORTY - FIRST STREET , ( After Nov . 25th address...molecule of iron or steel is supposed to have its own north and south poles. These molecules are originally...on the Serpentines. Mr. Julius Bernstein and Mr. Jos. Cauffman were elected active members. Meeting of...MICROSCOPICAL MINERALS. Barite, Anglesite, Azurite, Wul- 3g fenite, Malachite from Perkio- Ā«ā Ā» men, Pa....Wulfenite, Nev., Aust 1 00 2 00 Zincite. N. J 05 1 50 Zircon, Canada, N. C 05 150 Zoicite, R. I., Ct 15 100 |  | | Report (issue) | | 2 0.5 0.1 2.9 1.2 0.8 0.2 0.4 Cancrinite Zircon 12.8 Muscovite Biotite 0.4 0.7 Garnet- 1.6...2.1 0.3 0.5 Biotite 0.3 Muscovite 15.3 tr Zircon 0.1 0.3 Ferric oxide aggregate Total counts...5 0-2 Apatite 0.7 1.2 0.6 0.7 0.3 0-1 Zircon Sulfides 2.1 1.7 Garnet Magnetite Total counts...Apatite 1.0 0.2 1.2 0.8 0.5 3.4 Chlorite tr Zircon tr Mermykite tr Total counts 1157 0.1 tr...0.8 8.2 tr tr 2.3 Clinopyroxene Sphene tr Zircon 0.2 Magnetite 0.1 Apatite 0.8 Epidote 0 |
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