 | | Journal (article/letter/editorial) | | AI-Armalcolite and Native Iron in a Lava From Asuk, Disko, Central West Greenland Asger Ken Pedersen Geologisk Museum...enclosed in basalt in a native iron bearing lava from Disko is similar in chemistry, apart from volatile components...Tertiary carbonaceous shale sediments from West Greenland, believed to have been the major contaminant and...formation of the native iron in the volcanic rocks on Disko. The shale buchite has preserved original sedimentary...ferropseudobrookite-rich armalcolite, iron metal, troilite and acid glass, and crystallized under higher |  | | Journal (article/letter/editorial) | | graphite andesite volcano, Nuussuaq, central West Greenland Asger Ken Pedersen a,⁎, Lotte Melchior Larsen...Copenhagen K, Denmark Geological Survey of Denmark and Greenland, Øster Voldgade 10, DK 1350 Copenhagen K, Denmark...graphite andesite volcano on Nuussuaq belongs to the Asuk Member of the Paleocene Vaigat Formation. It is...chemically similar subaerial lavas and breccias from Disko and Nuussuaq contain less graphite and more iron...Graphite; Volcano; Paleocene; Nuussuaq Basin; Greenland 1. Introduction ⁎ Corresponding author. Tel |  | | Journal (article/letter/editorial) | | mudstone xenoliths with native iron from Disko, central West Greenland A.K. Pedersen a and J.G. Ronsbo 2 1...with native iron from the A s u k M e m b e r on Disko contain Ti oxides which are oxygen deficient relative...recorded a m o n g native iron bearing rocks from Disko. The extremely reducing conditions were met in rocks...heretofore been reported as a mineral. On the island o f Disko rutile is widespread in the iron metal bearing...within the native iron bearing volcanic rocks on Disko. This p a p e r describes the p e t r o g r a p |  | | Journal (article/letter/editorial) | | of These Assemblages in Basalts from Ovifak, Greenland, and Biihl, Federal Republic of Germany Olaf Medenbach...Kassel (West Germany) and Ovifak on Disko Island (West Greenland). The typical assemblage of these xenoliths...xenoliths at both localities is: native Fe, troilite, cohenite, ulv6spinel, ilmenite, olivine, and plagioclase...silicate glass containing droplets of former Fe and troilite melt. The ulv6spinel subsolidus textures and intergrowths...near Kassel, West Germany, and Ovifak (Disko Island), West Greenland. The origin of these iron xenoliths |  | | Journal (article/letter/editorial) | | Native Iron-Bearing Andesite at Asuk, Disko, Central West Greenland Asger Ken Pedersen* Research School...at the classical locality of Asuk (Fig. 1) on the north coast of Disko (Steenstrup, 1882). The sequence...gradation 1 Nicolau (1900) described a similar rock from Asuk as an andesite, and his nomenclature is continued...nomenclature of the native iron-bearing rocks from Disko will be discussed in a later paper 0010-7999/78/0067/0331/$02...o m Disko 332 Table 1. Chemical analyses of andesite and shale xenoliths from 5'3" ' ~ Asuk, northern |  | | Report (issue) | | 065 0.207 0.37 99.18 99.802 (1) Blaafjeld, Greenland. (2) Cameron, Missouri, USA. Occurrence: Rare...magnetite, troilite, wüstite, cohenite. Distribution: In Greenland, at Fortune Bay, Mellemfjord, Asuk, and...and elsewhere on the west coast; on Disko Island, near Uivfaq and Kitdlı̂t. From Ben Bhreck, Scotland....Township, Nipissing district, and on St. Joseph Island, Lake Huron. Noted in small amounts at a number...sulphide liquids from a basaltic dyke on Disko, central west Greenland. J. Petrol., 26, 64–91. (3) (1955) NBS |  | | Journal (article/letter/editorial) | | Volcanic Rocks with Native Iron from Disko, Central West Greenland A.K. Pedersen Geologisk Museum, fOster...to daci~ic lavas from the Maligfit Formation on Disko contain an early phenocryst assemblage of plagioclase...ascent and solidification. Introduction The island of Disko is known for the largest and most varied occurrences...surface. Several iron-bearing volcanic rocks on Disko show evidence of a strong progressive reduction...solidus. However, recent field work in north-western Disko (Pedersen 1975, 1977a) has led to the discovery |  | | Journal (article/letter/editorial) | | Sulphide Bodies With Native Iron From Disko, Central West Greenland Asger Ken Pedersen Geologisk Museum...250 bars. The sulphide bodies are composed of troilite (90-91%), iron (9-10%) and very scarce vanadium-rich...occurrence of strongly Ni-depleted reduced basalts on Disko shows that fractionation of metal and sulphides...iron-bearing volcanic rock units in Disko and Nfigssuaq, Central West Greenland. Sulphide blebs with native iron...(Nichiporuk et al., 1967). The glassy dyke rock from Disko to be described below provides an example of basalt |  | | Journal (article/letter/editorial) | | Sulphide Liquids from a Basaltic Dyke on Disko, Central West Greenland by FINN ULFF-M0LLER Geologisk Museum...DK-1350 Copenhagen K., Denmark ABSTRACT A unique troilite-iron-cohenite-rich lens was found on a ledge in...in the sediment-contaminated Kitdlit dyke on Disko. The lens displays a mineralogical diversity and extreme...lens formed by crystallization of iron, cohenite, troilite, schreibersite and wiistite (in that order), with...crystallization order of the upper troilite-rich half of the lens was: iron, cohenite, troilite, chromite, wustite, |  | | Report (chapter) | | apparently associated with basalts at Disko Island, West Greenland, Daubr6e took part in the subsequent...17%, and it was associated with minerals such as troilite (FeS), and schreibersite ((Fe,Ni)3P). In contrast...faces, and a cavity caused by the erosion of a troilite granule (Daubr6e 1879c, fig. 179, p. 489). Fig...This view changed following an expedition to Greenland in May 1870, led by the Finnish geologist, mineralogist...(1832-1901). Since 1818 previous explorers of Greenland had noted that the indigenous population used |  | | Journal (article/letter/editorial) | | corroded rockbridgeite on the 67-m level in the island Vulcano of the Lipari group, north of Sicily, Italy...mudstone xenoliths with native iron from Disko, central West Greenland. Contrib. Mineral. Petrol., 96,3546...carbonaceousmudstones that occur at Asuk on northern Disko, Greenland, in a strongly reduced andesite breccia...Fe have formed, always surrounded by a rim of troilite(?). Original clastic grains of Fe-Ti oxides have...lunar rocks, but the Vanadium-titanium carbide Disko material constitutesthe first description of magn6li |  | | Journal (article/letter/editorial) | | incIusions in natural ironing alloy, Risk0 Island, Greenland Department ofC&ological S&en- Corndl University...reduced by teixstrial standards occur on Disko Island, West Greenland. These IQ& arc the products of SFaction...composition the intragranular s&ate inebrsions Disko, was kindly loaned to us by the Mine~~~~ are enriched...anorthosite comsilicates, iron sulphides (principally troilite), and iron plexes(P~u.rorrs, 198I), except for...indication of amount of pore material. ANDERSON and GREENLAND (1969) measured P distribution coefficients, DP |  | | Book | | MINERAL SPECIES FffiST DESCRIBED fron1 GREENLAND Ole V. Petersen & Ole Johnsen Also in this series... MINE. RAL ....... SPECIES FIRST DESCRIBED froin GREENLAND Ole V. Petersen & Ole Johnsen The Canadian Mineralogist...organizations: The Commission for Scientific Research in Greenland Geologisk Museums St0ttefond (Geological Museum's...document on the minerals first discovered in Greenland. After all, as they point out in the first sentence...Introduction, a mere 26 kilometers separates Greenland from Canada along Nares Strait; we are neighbors |  | | Journal (issue) | | Narssarssuk, Greenland. Photo by R. Bode. TITLE PAGE: The most common mineral in Greenland: ice —making...up the typical Arctic icebergs, ubiquitous in Greenland waters; photo by B. L. Nielsen. This special...AMMASSALIK (ANGMAGSSALIK) GEOLOGICAL MAP OF GREENLAND NUUK (GODTHAB) PAAMIUT (FREDERIKSHAB) ARSUK...Paleozoic and Mesozoic North Greenland platform and fold belt East Greenland Caledonian fold belt P rote...Archaean i 500 km i i i i PREFACE Throughout Greenland there are many interesting mineral localities |  | Howarth, Geoffrey H., Day, James M.D., Pernet-Fisher, John F., Goodrich, Cyrena A., Pearson, D. Graham, Luo, Yan, Ryabov, Viktor V., Taylor, Lawrence A. (2017) Precious metal enrichment at low-redox in terrestrial native Fe-bearing basalts investigated using laser-ablation ICP-MS. Geochimica et Cosmochimica Acta, 203. 343-363 doi:10.1016/j.gca.2017.01.003 | Journal (article/letter/editorial) | | North Atlantic LIP Asuk Hammers Dal Complex Noril’sk Mineralized Zone Disko Island Khungtukun Sediments...Thrusts Faults Figure 2 b) Dzhaltul Fe-alloy Cu Troilite Fe-alloy Coh 5 cm 200 µm c) Dzhaltul - Sulfide-poor...Sulfide-poor d) Dzhaltul Fe-alloy Coh Coh Cu Troilite Coh Fe-alloy Coh 100 µm e) Dzhaltul - Dike 100...3 a) Siberia (Khungtukun) Ni (wt.%) 2.5 2 Disko 1.5 1 Siberia (Dzhaltul) Bühl 0.5 0 0 0.1 0...Co (wt.%) 3.5 b) Disko 3 Ni (wt.%) Siberia (Khungtukun) 2.5 1872.1482 LP Disko HC80 AS80-2 OZ-82 |  | Anovitz, Lawrence M., Treiman, Allan H., Essene, Eric J., Hemingway, Bruce S., Westrum, Edgar F., Wall, Victor J., Burriel, Ramón, Bohlen, Steven R. (1985) The heat-capacity of ilmenite and phase equilibria in the system Fe-T-O. Geochimica et Cosmochimica Acta, 49 (10) 2027-2040 doi:10.1016/0016-7037(85)90061-4 | Journal (article/letter/editorial) | | 234 0.17: 0.308 _ - - - rock C) from Disko Island, Greenland (PEDERSON. 198 1). The data of LINDSLEY...Alarmalcolite and native iron in a lava from Asuk, Disko, Central West Greenland. Conrrib. Mineral. Petrol. 69.8394...volcanic rocks with native iron from Disko, Central West Greenland. Contrib. Mmerai. Petrol. 77,301-324...and free energy of formation of herzenbergite. troilite. magnesite, and rhodochrosite calculated from |  | | Journal (issue) | | quantities of minerals have been sent home from Greenland. These minerals originate from different sources...material has naturally been collected in East Greenland by the numerous expeditions of later years, whereas...increase the size of the hook. As far as West Greenland is concerned, the geological conditions are rather...peninsulas of Svartenhuk and ugssuaq and the island of Disko, is built up of plateau basalt, several km...which chiefly occur in the southernmost part of Greenland. As elsewhere, the occurrences of minerals in |  | de Souza, Zorano Sérgio, Wang, Chao, Jin, Zhen-Min, Li, Jian-Wei, Yang, Junlong, Botelho, Nilson Francisquini, Viana, Rúbia Ribeiro, dos Santos, Larissa, Liu, Peng-Lei, Li, Wei (2019) Pyrometamorphic aureoles of Cretaceous sandstones and shales by Cenozoic basic intrusions, NE Brazil: Petrograhic, textural, chemical and experimental approaches. Lithos, 326. 90-109 doi:10.1016/j.lithos.2018.11.033 | Journal (article/letter/editorial) | | eruptions of active volcanoes on Ruapehu and White Island, New Zealand (Wood, 1994; Wood and Browne, 1996)...2003; Salvioli-Mariani et al., 2005), and El Hierro Island, the Canary Islands (Del Moro et al., 2015), were...(sekaninaite), anorthite, armalcolite, native iron, troilite, melilite, nepheline, Ti-andradite, wollastonite...(Eu/Eu*=0.80-0.92). Buchitic shale from Disko in West Greenland (Pederson, 1979) and cordierite buchite...with a SC tholeiitic basaltic magma from Disko, Greenland (Pederson, 1979). This author described the |  | Anand, Mahesh, Taylor, Lawrence A., Floss, Christine, Neal, Clive R., Terada, Kentaro, Tanikawa, Shiho (2006) Petrology and geochemistry of LaPaz Icefield 02205: A new unique low-Ti mare-basalt meteorite. Geochimica et Cosmochimica Acta, 70 (1) 246-264 doi:10.1016/j.gca.2005.08.018 | Journal (article/letter/editorial) | | minerals include ilmenite, chromite, ulvöspinel, troilite, and FeNi metal. This rock is highly enriched...which also includes chromite and ulvöspinel. Troilite and FeNi metal occur in minor amounts. The rock...small pool of shock-induced melt veins. Specks of troilite are seen distributed throughout this melt. A small...large grains of Fe-pyroxenes. Brighter spots are troilite grains. examined, although not always associated...pyroxene Feldspar/maskelynite Ilmenite Ulvöspinel Troilite FeNi metal Opaque minerals (total) Silica Phosphate |  | | Report (issue) | | sections near Flaming Gorge, Daggett County, and iri. Island Park and near the Carnegie Museum dinosaur quarry............_ " ' Blue Ga G ~· ... ~sa,.,,..,~asuk''' ~tone, " '· ::::~~~i;~~~;~;~=~~= Blue . ' -...Park fault on 1 the east and. the Island Park fault on the west. Island Parle.-The area along the river...low ridges and are called, in order downstream, .Island Park, Rainbow Park, and Little Park. The rocks...rocks of this area, ofteri called as a whole Island Park, lie in an unsymmetrical syncline with axis plunging |  | | Report (volume) | | buchite xenoliths in andesitic lavas from Disko, west Greenland, reported by Pedersen (1978, 1979), is a... plagioclase, ilmenite, armalcolite, iron and troilite. Original detrital Fe-Ti oxide grains have reacted...Argillite in the Palisdaes Sill, Graniteville, Staten Island, New York. Amer. Mineral. 69, 1005-1014. Berg,...M. (1988) Low pressure metamorphism in the Orrs Island-Harpswell Neck area, Maine. Maritime Sediments...deformation in a low-pressure metamorphic terrain, Orrs Island-Harpswell Neck, Maine. J. Metam. Geol. 8, 199-216 |  | | Thesis/Dissertation | | with in the Lake map-area and Frances period. island arc has been Its significance det ain atone...fossil a continental margin been consumption island arc Bird, Complex suggests Oceanic crust...calc-alkalic thus making unlikely the during (iii) island this volcanics arc-continental Structures ...the eastern however, (Devonian arc probably island was in an the Anvil only fair incipient...oceanic interarc basin of zone" with oceanic island district, out or immature roughly "mix vol- |
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