 | | Journal (article/letter/editorial) | | canal a few miles north of Covington, Fountain County, in wet peat. The teeth were in good preservation...found six miles north-west from Hoopston, Iroquois County, 111., which goes far to settle definitely- that...lithological and geological examination of the trachytic district of Hungary. The first question to be solved was...determination of the different species of this group in rocks. One of the first results of these investigations...viz.:—anorthite-trachyte, labrador-trachyte, oligoclase-trachyte, and orthose-trachyte* To define these |  | | Report (issue) | | J<~XPANSION 0}, PROFESSIONAL PAPER 14 i ) BY HENRY STEPHENS WASHINGTON VvASHINGTON GOVERNl\:IENT PRINTING.............. : . .............................. . 30 Index to normative names ..........................Constituents: .................................. . 30 Specific gravity ..................................RNEGlE INSTITUTION O.F' "\iVA$HINGTON, November 30, 1916. CHEMICAL ANALYSES OF IGNEOUS ROCKS. By...1nany systematists fir1nly in -its grasp. For about· 30 years after Abich's publication chemical analyses |  | | Journal (article/letter/editorial) | | crystal-poor phonolite and ca 100 km3 of slightly zoned trachyte were erupted 39 ka during the Campanian Ignimbrite... Fig. 1) lies within the Campanian Plain, a 80 9 30 km2 Pliocen graben in southern Italy, which is affected...different compositions ranging from trachyte to alkali-trachyte to phonolite that flowed in both variable...sea cliff and in the valleys of the Apennine Mountains, as well as in several quarries in the Volturno...exposed at Acquamorta beach, Monte di Procida trachyte (S. Nicola la Strada section near Caserta town; |  | | Report (issue) | | Porphyritic Trachyte (b) Nakuru Lake Syndicate Quarry Phonolite .. (c) Mbaruk Basalt.. (d) Gilgil Trachyte (e)...escarpment south-east of Lake Hannington Plate H—(a) Rubble bands in streaky trachyte, Lion's Head, Menengai...river, Arus. (b) The 2,000 foot escarpment south-east of Lake Hannington. Hot springs are situated on'...II (a) Rubbly auto-breccia layers in streaky trachyte, Menengai, Lion's Head section. (b) Sediments...Kipipiri road. PLATE VII Air photograph, south-east of Logumkum, showing the contact between deeply |  | | Book | | ISBN 0-8248-0832-0, cloth The Beaches of Maui County John R. K. Clark "This book is much more than a...Cameron, Wilson P. · Cannon, Douglas B.' T . Chun, Henry B. Cla rk, Jr. , Jim Cook, Richa rd and Donna Corrigan...Haleakala at the Isthmus; the Wai'anae and Ko'olau mountains of O'ahu meet in the Schofield Plateau. But here...Ka'ena Pt.- WAl 'ANAE MOUNTAINS SCHOFIELD KO'OLAU KOLEKOLE PLATEAU MOUNTAINS PASS MT. KA'ALA j I MOANALUA... Maui has 46 kilometers of sea cliff higher than 30 meters. O'ahu has only 5 kilometers of sea cliff |  | | Journal (article/letter/editorial) | | labrador-trachyte 30 per cent., the oligoclase-trachyte 15 per cent., and lastly the orthose-trachyte 5 per...it still forms the highest trachytic mountains of the district (sometimes with an elevation of over 6000...Lincolnshire (Mag. Nat. Hist. Nov. 1837). A model of the district was also made, and a plaster-cast of it sent to...had fallen and thoroughly soaked the moorland district. . . . The only way of examining the section was |  | | Book | | Cees he cee Pe ele eae © INipien llek, Group meetltese lh 2 aMibs Week Petrography Nomenclature...Geology Economic Geochronology of the Tristan Group Geological Evolution The 1961 Eruption Phase Tremor...to extend from about 5° N latidude to about 53 ° 30’ S latidude. As thus delimited, the islands included...have a total area of some 16 100 km?, of which one group, the Falklands, represents some 72 % of this total... gee [G02 (Scale af Equator) lana, {50° [#02 30? be 70°W. a? [WE {20° Fig. 1. The South Atlantic |  | | Journal (article/letter/editorial) | | section of the Tore-Madeira Rise, which occurred 20–30 m.y. after opening of the eastern North Atlantic...region since Cretaceous time, including an about 30 anti-clockwise rotation of Iberia. 2006 Elsevier...For Porto Santo Island located 45 km to the north-east of Madeira, alkali basalts to trachytic rocks (Geldmacher...important to note that they all lie significantly to the East of the Tore-Madeira Rise. The samples analyzed for...1426.84W TMD16-2 Phenocrystals Groundmass Trachyte 5–10 Almost aphyric, microvesicular, microlitic |  | KIEFFER, BRUNO, ARNDT, NICHOLAS, LAPIERRE, HENRIETTE, BASTIEN, FLORENCE, BOSCH, DELPHINE, PECHER, ARNAUD, YIRGU, GEZAHEGN, AYALEW, DEREJE, WEIS, DOMINIQUE, JERRAM, DOUGAL A., KELLER, FRANCINE, MEUGNIOT, CLAUDINE (2004) Flood and Shield Basalts from Ethiopia: Magmas from the African Superswell. Journal of Petrology, 45 (4) 793-834 doi:10.1093/petrology/egg112 | Journal (article/letter/editorial) | | In the NE, a thick sequence of 30 Ma flood basalts is overlain by the 30 Ma Simien shield volcano. The...lavas. A third type of magma, which also erupted at 30 Ma, is more magnesian, alkaline and strongly enriched...(1997), most of the Ethiopian flood basalts erupted 30 Myr ago, during Journal of Petrology 45(4) # Oxford...basalts (HT1 and HT2)-----are found to the south and east. The HT2 basalts are slightly more magnesian than...isotopic compositions of lavas with ages ranging from 30 to 10 Ma, or from the peak of flood volcanism to |  | | Report (volume) | | IDDIHGS, J.P. ...On a group of volcanic Lfc. rocks from the Tewan Mountains, New Mexico... 1890. i...GEOLOGICAL SURVEY JSTo: 66 ON A GROUP OF yOLGAXlC ROCKS' FEdJ MOUNTAINS, NEW MEXICO,' AND ON 'TH /. 'OCCUREENpE...Powell, director | | On | a group of volcanic rocks | from the | Tewan mountains, New Mexico, | and on |...Powell, director | | On | a group of volcanic rocks | from the | Tewan mountains, New Mexico, | and on |...Powell, director | | On | a group of volcanic rocks | from the | Tewan mountains, New Mexico, | and on | |  | | Journal (article/letter/editorial) | | 1919. In contrast it carried 240 ppm of HC1, and 30 ppm HF in 1917—the onlyyear in which samples of halogen...rocks, Fumarole No. 1 1594 3. Chemical analyses of trachyte and its 1597 altered fades, Solfatara, Italy 1594...diameter on a fissure perhaps 100 feet long running east and west. The surface of the fissure was light colored...examination of the tin group precipitate showed traces of arsenic and antimony, of the lead group a minor amount...amount of copper and silver, and of the zinc group a small but definite amount of cadmium. Allen and Zies |  | | Book (chapter) | | to Durness Limestone in the BroadfordStrollamus district of Skye. Geological Magazine, 91, 73-8. Bailey...(1984a) The basic lavas of the Eastern Red Hills district, Isle of Skye. Scottish Journal of Geology, 20...Tertiary basic dykes in the Eastern Red Hills district, Isle of Skye, and their significance for the...rocks and rhyolitic lavas of the Eastern Red Hills district, Isle of Skye. Scottish Journal of Geology, 21...involving intermediate members of the alkali—basalt—trachyte suite. Unpublished Ph.D. Thesis, University of |  | | Report (volume) | | Reference Sections in the Popotosa Formation, Socorro County, New Mexico By SIGRID ASHER-BOLINDER Description...reference sections in the Popotosa formation, Socorro County, New Mexico. (U.S. Geological Survey bulletin ;...Stratigraphic-Tertiary. 2. Geology-New Mexico-Socorro County. 3. Popotosa Formation (N.M.) I. Title. II. Series...Santa Fe Group nomenclature throughout Socorro paleobasin 4 3. Map showing west and inferred east edges...Socorro County, New Mexico By Sigrid Asher-Bolinder Abstract The Popotosa Formation of Socorro County, New |  | | Report (issue) | | Geology and Uranium Deposits of the Laguna District, New Mexico By ROBERT H. MOENCH and JOHN S. SCHLEE..._________________________ _ Mancos Shale and Mesaverde Group _________ _ Igneous rocks __________________________________..._-- ~-- Folds-------------------------------------East- to northeast-trending folds _______ -North-trending...17 17 18 18 19 21 21 22 23 26 26 27 28 29 30 30 30 30 31 35 35 35 35 36 36 36 36 36 37 Structural...deposits-Continued Chavez mine and other deposits on the east side of Mesa Gigante _____________ -____________ |  | | Book | | Chester A. Rowland Published by the Society for Mining, Metallurgy, and Exploration, Inc. 8307 Shaffer...Colorado 80127 Copyright © 2005 by the Society for Mining, Metallurgy, and Exploration. All rights reserved...for Mining, Metallurgy, and Exploration, Inc. (SME) 8307 Shaffer Parkway Littleton, Colorado, USA 80127...763-3132 www.smenet.org SME advances the worldwide mining and minerals community through information exchange...association of mining and minerals professionals. Copyright © 2005 Society for Mining, Metallurgy, and |  | | Report (issue) | | Stratigraphy 17 The pre-Miocene basement 17 The Mbirao Group l 7 Mbirao \Tolcanics 18 Tetekanji Limestones 19...Mbirao Metabasics 22 Petrochemistry of the Mbirao Group 23 The Guadalcanal Ultrabasics 25 Marau Ultrabasics...Suta Volcanics 28 Poha Diorite 30 Kavo Greywacke Beds 32 Mbetilonga Group 33 Tangareso Beds 35 Mbokokimbo...Significance of s -sur-faces within the Mbirao Group 56 Bedding planes in the Neogene sequence 56 Deposition...Guadalcanal 58 Folding 59 Minor folds within the Mbirao Group 59 Minor folds within the Neogene succession 60 |
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