 | | Report (issue) | | To Our Readers: Pakistan is a mineralogically-rich and interesting country. The quantity of Pakistani...us by surprise when people began to ask, "Why Pakistan; why now?" It has never been our intention to...the mineral deposits of the high mountains of Pakistan and Afghanistan. Once into the project, however...justice to neither. We decided to limit our focus to Pakistan, though even focused on a single country, a comprehensive...aquamarine); 19.6 cm high Shigar Valley, Skardu district, Northern Areas, Pakistan P hoto by Jeff Scovil |  | Vazquez, Jorge A., Velasco, Noel O., Schmitt, Axel K., Bleick, Heather A., Stelten, Mark E. (2014) 238 U– 230 Th dating of chevkinite in high-silica rhyolites from La Primavera and Yellowstone calderas. Chemical Geology, 390. 109-118 doi:10.1016/j.chemgeo.2014.10.020 | Journal (article/letter/editorial) | | elsevier.com/locate/chemgeo 238 U–230Th dating of chevkinite in high-silica rhyolites from La Primavera and...online 29 October 2014 Editor: K. Mezger Keywords: Chevkinite Uranium-series geochronology Ion microprobe Yellowstone...magma within the framework of absolute time. Chevkinite, a Th-rich accessory mineral that occurs in peralkaline...melt. Ion microprobe 238U–230Th dating of single chevkinite microphenocrysts from pre- and post-caldera La...corresponding K–Ar ages of ca. 125 ka to 85 ka, while chevkinite microphenocrysts from a post-caldera Yellowstone |  | | Journal (issue) | | Museum Toronto, Ontario Steven R. Morehead Green Valley, AZ Donald R. Peacor University of Michigan Ann...by quoting from a history of the Bristol school district written by Mrs. H. S. Bartholomew, daugh ter-in-law...copper. The Triassic arkose of the Connecticut River Valley, as well as occurrences in New Jersey and Pennsylvania...Rocks, near New Haven, as well as elsewhere in the Valley, the arkose is overlain by later volcanics, which... BARTHOLOMEW, H. S. (1907) History of School District No. 9. In Norton, M. L., ed., Bristol, Connecticut |  | | Journal (issue) | | Gruppenname, trotzdem heißen die im kalifornischen Pala-District gelegenen „Turmalin King Mine" und „Turmalin Queen...phantastischen Chevkinite-(Ce). die von mehreren Händlern angeboten wurden. Chevkinit-(Ce) hat die nicht...Ein neues Vorkommen in Pakistan (Arondu, Haramosh im oberen Industal. Baltistan) liefert aber nun große...vorn stand dabei nicht immer eine Eins!). Chevkinit-(Ce) fand sich in diesem neuen Vorkommen in guten, maximal...Teil liegt das an kleinen, auf den Flächen der Chevkinite aufgewachsenen Schörlkristallen, andere, gelegentlich |  | | Journal (issue) | | Benitoite, Gold L.A. County Paterson (NJ), Brumado district Museum, Himalaya mine $10 (Brazil), Bosch Collection...16/#5 Tourmaline Issue! (112 p.) Elba, Maine, Pakistan, Nepal, California, etc. $10 v (Australia), Mauldin...Axinites (CA). El Dragon mine (Bolivia), Silver District (AZ), Goldschmidt $10 v.21/#3 American Amethyst...Prospect Intrusion $10 v.25/#4 Blowpipe Analysis, Amo Valley (Italy), Widgiemooltha (Australia), Laurium (Greece)...$10 v.28/#3 Western Union mine (AZ), Utahite, Pakistan Locality Guide! $10 v.28/#4 Mines and Minerals |  | | Book (edition) | | Prague Printedin Czech Republicby Finidr.u.o .. Ce,ky Te~in 14/02/03/0 I All rights reserved•• ·o pan...dominant rareearth element (REE). e.g. monazite-(Ce), monazite(Nd), etc. In a few cases a similar procedure...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....= 99°37' Z = 4. Stable by <173°C, Abenakiite-(Ce) a26(Ce,Nd)c,[Ol(C?,,)61all argentite specimens are actually...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |
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Arondu, Basha Valley, Shigar district, Gilgit-Baltistan, Pakistan