 | Kolb, Jochen, Keiding, Jakob K., Steenfelt, Agnete, Secher, Karsten, Keulen, Nynke, Rosa, Diogo, Stensgaard, Bo M. (2016) Metallogeny of Greenland. Ore Geology Reviews, 78. 493-555 doi:10.1016/j.oregeorev.2016.03.006 | Journal (article/letter/editorial) | | Metallogeny of Greenland Jochen Kolb, Jakob K. Keiding, Agnete Steenfelt, Karsten Secher...Rosa, Diogo, Stensgaard, Bo M., Metallogeny of Greenland, Ore Geology Reviews (2016), doi: 10.1016/j.oregeorev...pertain. ACCEPTED MANUSCRIPT Metallogeny of Greenland JOCHEN KOLB1, JAKOB K. KEIDING1,2, AGNETE STEENFELT1...Economic Geology, Geological Survey of Denmark and Greenland, Øster Voldgade 10, 1350 Copenhagen K, Denmark...TE D MA Corresponding author: jkol@geus.dk Greenland is the largest island on Earth, with 80% of its |  | | Journal (article/letter/editorial) | | in Greenland [1,2], but to this day it is of great scientific and economic interest. The complex zeolite-like...[10], Lovozero (Russia) [11], Ilimaussaq (South Greenland) [12], Mont Saint-Hilaire (Canada) [13], and Norra...[23–26]. In particular, in the Pilansberg alkaline complex (South Africa), a late-magmatic generation of EGMs...19 (1) Layered complex (77% massif’s volume; thickness about 1700 m). This complex consists of numerous...Eudialyte complex (18% massif’s volume; thickness varies from 100 to 800 m). This complex overlies the |  | Mendes, Mônica, Lobato, Lydia M., Kunzmann, Marcus, Halverson, Galen P., Rosière, Carlos A. (2017) Iron isotope and REE+Y composition of the Cauê banded iron formation and related iron ores of the Quadrilátero Ferrífero, Brazil. Mineralium Deposita, 52 (2) 159-180 doi:10.1007/s00126-016-0649-9 | Journal (article/letter/editorial) | | magnetite, partially transformed to martite and minor goethite. h Folded martite band, characterized by high...on the presentday land surface, the ore may be goethite rich and partially silicified to chalcedony (Rosière...muscovite may occur in small quantities (Fig. 2d). Goethite can also be associated with itabirites, even in... and quartz. The matrix is locally altered to goethite. With increasing strain (eastern zone), iron orebodies...hematite aggregate with martite relicts Martite-goethite-magnetite layers alternating with quartz layers |  | | Journal (article/letter/editorial) | | PETROGENESIS OF THE LATE CRETACEOUS ABU KHURUQ ALKALINE COMPLEX, EASTERN DESERT, EGYPT Mohamed A. OBEID§ Department...The Late Cretaceous rocks of the Abu Khuruq ring complex (AKRC), exposed in the southern Eastern Desert...nephelinebearing pegmatites. The rocks of the complex are dominantly metaluminous and enriched in both...by crustal material. Keywords: Abu Khuruq ring complex, syenite, gabbro, phonolite, trachyte, geochemistry...Desert, Egypt. Introduction The Abu Khuruq ring complex (AKRC), located in the southern Eastern Desert |  | | Book | | 59. A classic crystal habit of Anglesite with Goethite coated altered Serpierite. Fov 2mm. Author’s specimen...yellowish green Malachite mostly replaced by yellow Goethite. Fov ~4mm. Colleen Thomson’s specimen. Fig 62...intertwined crystals of Serpierite with a partial Goethite coating. Fov ~1.5mm. Author’s specimen. Fig 69...Anglesite. Fov ~1.25mm. Author’s specimen. Fig 71. A complex mix of colourless Anglesite showing some corrosion... Fig 72. Anglesite crystals formed on mostly Goethite replaced botryoidal green-light brown Malachite |  | | Conference Proceedings (Volume) | | Paleoproterozoic U-mineralization in the Archean Pudasjärvi Complex, northern Fennoscandian Shield ..................Beaufort Kvanefjeld – a large uranium deposit in Greenland ...............................................& W. Dawes Rare earth elements in Europe and Greenland: a geological potential? An overview Nicolas...characteristics of the Yonghwa phoscorite-carbonatite complex, Korea . . ......................................mineralization is related to gabbro-dioritetonalite complex. Ore bodies are conformable to contacts of the |  | Wang, Zhen-Yu, Fan, Hong-Rui, Zhou, Lingli, Yang, Kui-Feng, She, Hai-Dong (2020) Carbonatite-Related REE Deposits: An Overview. Minerals, 10 (11) 965 doi:10.3390/min10110965 | Journal (article/letter/editorial) | | Burundi Malawi South Africa South Africa Turkey Greenland Sweden Weathered crust elution Weathered Carbonatite...deposit, which is hosted in the Ilímaussaq complex of southern Greenland, is a typical example [14,15]...the whole rock The types of REE deposits are complex and diverse, and the ones related to carbonatite–alkaline...deposit in Brazil and the Sarfartoq REE deposit in Greenland (Figure 1) [17,29,30]. The distribution of carbonatite-related...consists Region [61,62]. The ore-forming is extremely complex, which is mainly due to of Na-richAutonomous amphibole |  | | Report (issue) | | half-life of 238U. The decays of 235U and 238U are complex, with many intermediate daughter products. These...Xiangshan (China) Rössing (Namibia), Ilimaussaq (Greenland), Palabora (S. Africa) Olympic Dam (Australia)...fit into other types, and have origins that are complex (Ruzicka 1982, IAEA 1986, Martin-Izard et al. 2002)...about 10% of the global U production. (5) Breccia complex deposits of U are dominated by the Mesoproterozoic...granite breccia complex in the Gawler Craton (Reeve et al. 1990). The central core of the complex is barren |  | | Journal (issue) | | the mineral community. You are a fascinating and complex family. April 1964 Copper (both sides), 13.6 cm... Cerussite pseudomorphs after anglesite, with goethite, 7 cm, from the MMM mine, Broken Hill district...County, Nevada. Jeff Scovil photo. Stilbite with goethite, 5.9 cm, from the Skookum Lumber quarry, Mason...and nelenite, 8.5 cm, from the Huanggang mine complex, Chifeng, Inner Mongolia, China. Jeff Scovil photo...Chabazite in a drill core, 6.3 cm, from Disko Island, Greenland. Collected in 2013. (top) Smoky quartz with phantoms |  | Estrade, Guillaume, Marquis, Eva, Smith, Martin, Goodenough, Kathryn, Nason, Peter (2019) REE concentration processes in ion adsorption deposits: Evidence from the Ambohimirahavavy alkaline complex in Madagascar. Ore Geology Reviews, 112. 103027 doi:10.1016/j.oregeorev.2019.103027 | Journal (article/letter/editorial) | | deposits: evidence from the Ambohimirahavavy alkaline complex in Madagascar Guillaume Estrade, Eva Marquis, Martin...deposits: evidence from the Ambohimirahavavy alkaline complex in Madagascar, Ore Geology Reviews (2019), doi:...deposits: evidence from the Ambohimirahavavy alkaline complex in Madagascar Authors Guillaume Estrade1*, Eva...data from the Cenozoic Ambohimirahavavy alkaline complex in Madagascar, with the aim of further constraining...which is invariably low. In the Ambohimirahavavy complex, the nature of the protolith is the main factor |  | Giebel, R. Johannes, Gauert, Christoph D.K., Marks, Michael A.W., Costin, Gelu, Markl, Gregor (2017) Multi-stage formation of REE minerals in the Palabora Carbonatite Complex, South Africa. American Mineralogist, 102 (6) 1218-1233 doi:10.2138/am-2017-6004 | Journal (article/letter/editorial) | | formation of REE minerals in the Palabora Carbonatite Complex, South Africa R. Johannes Giebel1,2,*, Christoph...Abstract The 2060 Ma old Palabora Carbonatite Complex (PCC), South Africa, comprises diverse REE mineral...occurrences in the PCC as well as in a carbonatite complex in South Africa. The variable REE mineral assemblages...Based on our findings, the Palabora Carbonatite Complex experienced at least two successive stages of intense...2015), the scientific interest to understand the complex REE mineralizations found in carbonatitic systems |  | Chikanda, Frances, Otake, Tsubasa, Ohtomo, Yoko, Ito, Akane, Yokoyama, Takaomi D., Sato, Tsutomu (2019) Magmatic-Hydrothermal Processes Associated with Rare Earth Element Enrichment in the Kangankunde Carbonatite Complex, Malawi. Minerals, 9 (7) 442 doi:10.3390/min9070442 | Journal (article/letter/editorial) | | Element Enrichment in the Kangankunde Carbonatite Complex, Malawi Frances Chikanda 1, * , Tsubasa Otake 2...in the complex, highlighting that the REE are mainly concentrated at the centre of the complex [15]; (ii)...Consequently, the processes that were reported on the complex in previous studies may highlight important stages...REE enrichment in the Kangankunde Carbonatite Complex. Monazite is one of the most important REE minerals...24]) have applied Fe isotopes to characterize the complex interactions between magmatic and hydrothermal |  | Chen, Lie-Meng, Song, Xie-Yan, Zhu, Xiang-Kun, Zhang, Xiao-Qi, Yu, Song-Yue, Yi, Jun-Nian (2014) Iron isotope fractionation during crystallization and sub-solidus re-equilibration: Constraints from the Baima mafic layered intrusion, SW China. Chemical Geology, 380. 97-109 doi:10.1016/j.chemgeo.2014.04.020 | Journal (article/letter/editorial) | | crystallizing minerals in a layered intrusion in a complex magma plumbing system are unknown. By means of...isotopic fractionation factors: Application to goethite and jarosite. Geochimica et Cosmochimica Acta...alkaline igneous rock suite of the Ilímaussaq Complex, South Greenland. Chemical Geology 258(1-2): 65-77 |  | Hazen, R. M., Golden, J., Downs, R. T., Hystad, G., Grew, E. S., Azzolini, D., Sverjensky, D. A. (2012) Mercury (Hg) mineral evolution: A mineralogical record of supercontinent assembly, changing ocean geochemistry, and the emerging terrestrial biosphere. American Mineralogist, 97 (7) 1013-1042 doi:10.2138/am.2012.3922 | Journal (article/letter/editorial) | | kingdom also displays many features common to other complex evolving systems, including diversification, punctuation...dumbbells (Borisov et al. 2005). Note that as in other complex framework structures such as zeolites, these structures...weathering during the Cretaceous or Tertiary, when goethite deposits formed in the banded iron formations...Far-Eastern Region Volkov et al. (2008) RU06 Uktus Complex, Middle Urals Krause et al. (2005) RU07 Vorontsovskova...Southern Urals Chernyshev et al. (2008) RU09 Nurali Complex, Bashkortostan Republic, Southern Urals Grieco |  | | Journal (article/letter/editorial) | | the fracturematrix interface. They describe a complex curved profile over the first 6 m of the drillcore...welldescribed alkaline complexes, including examples from Greenland, the Kola peninsular of Russia, and NW Namibia...the alkali content and GD value from the Ilímaussaq complex is observed. These data suggest that H-isotope...alkali-element contents in the amphiboles, implying complex fluid-mineral equilibration in these highly alkaline...water. Results and Discussion Aggravated by the complex and unclear hydrogeological situation, this study |  | | Journal (issue) | | crystals from Balmat, New York, and a fantastic goethite specimen from Morocco. John Sanfaçon presented...groupings I have ever seen. A large curving fissure of goethite filled with hemimorphite crystals from Mapimí...Localities” for fluorescent species: the Ilímaussaq complex, Greenland; Puttapa, South Australia; and of course |  | Broom-Fendley, Sam, Brady, Aoife E., Wall, Frances, Gunn, Gus, Dawes, William (2017) REE minerals at the Songwe Hill carbonatite, Malawi: HREE-enrichment in late-stage apatite. Ore Geology Reviews, 81. 23-41 doi:10.1016/j.oregeorev.2016.10.019 | Journal (article/letter/editorial) | | Synchysite-(Ce) Parisite-(Ce) Fluorite Quartz Goethite Mn-oxides Fe-rich carbonatite (C3) Mn-Fe- veins...and fragmented K-feldspar. Ap-3 is texturally complex, but has a similar habit and complexity in all...similar to Ap-3 (Fig. 6) but has a considerably more complex texture in BSE images (Fig. 10). Earlier remnant...and mineral assemblages at the margins of the complex are preferential targets for higher proportions...peripheral to carbonatites of the Bear Lodge alkaline complex, Wyoming. Am. Min. 101, 1604–1623. Andrade, F. |  | | Journal (article/letter/editorial) | | compromised, even in acid-leached groundmass, by the complex, polyphase nature of the kimberlite [2]. By contrast...large-mass heme c-containing proteins directly from complex microbial communities, with the hypothesis that...peridotite-gabbro section from the Horoman Peridotite Complex, Japan. Trace elements exceeding Primitive Mantle...different greenstone belts endorse the emergence of complex arc magmatism in Neoarchaean terranes. Goldschmidt...dissolved and oxidized, and secondary hematite, goethite and iron arsenates were precipitated. Two types |  | Peters, Bradley J., Shahar, Anat, Carlson, Richard W., Day, James M.D., Mock, Timothy D. (2019) A sulfide perspective on iron isotope fractionation during ocean island basalt petrogenesis. Geochimica et Cosmochimica Acta, 245. 59-78 doi:10.1016/j.gca.2018.10.015 | Journal (article/letter/editorial) | | from the active Piton de la Fournaise volcanic complex (530 ka – present) [e.g., Gillot et al., 1994]...basalt samples from the extinct Piton des Neiges complex (2 Ma – 30 ka) [e.g., McDougall, 1981; Gillot &...meters of vertical erosion in the Piton des Neiges complex, which became extinct at around 30 ka [Gillot &...basalts from the older Piton des Neiges volcanic complex – does not strongly affect the significance of...the cumulate xenoliths. Such behavior reveals a complex history of crystal accumulation, which may include |  | | Book | | variations on the origin of early Archean BIFs from Greenland. Science 306:2077–2080 Fewell MP (1995) The atomic...(2009) Atom exchange between aqueous Fe(II) and goethite: an Fe isotope tracer study. Environ Sci Technol...that ferric iron readily forms an anion chloro-complex (FeCl4)− in high molarity HCl, whereas most other...al. 2009). The separation of Fe from chemically complex samples needs to be quantitative because Fe loss...lost as a mixed [FeCl3(H2O)3]–[FeCl2(H2O)+4 ] complex and the remaining Fe is retained on the resin as |  | | Journal (issue) | | the International Colored Gemstone Association, Greenland ruby, laboratory-grown emeralds, Miranda Group’s...brush-like bundles or tufts with the appearance of goethite (Figure 2). The base of each tuft was most often...tufts (about 0.1 mm long) with the appearance of goethite along a layer in the amethyst. Photomicrograph...after its type locality at Tugtup Agtakôrfia in Greenland (Sørensen 1960). Tugtupite has been rarely used...the Taseq and Kvaneeld areas of the Ilímaussaq complex in Greenland. It is usually cut and polished into |  | | Book | | al., 2003), Geological Survey of Denmark and Greenland (GEUS) (Figs. 2.2d; 4.3; 4.6; 4.6.1; 8.3a; 8.8;...simplest way to visualize the chemical composition of complex silicate materials is as a mixture of oxides: silicon...NaAlSi3O8). Solid solution in pyroxenes is more complex, so representing the composition of a pyroxene...be ignored. Garnet compositions are still more complex and require six end-members (Box 5.2). Such ‘formula... The circumstances behind this transition are complex. The field evidence may be summarized as follows: |  | | Book | | W. Schuppan (Germany), A. Steenfelt (Denmark/Greenland), M. Pagel (France), B. Poty (France), J. Royall...Chapter 4 Denmark/Greenland . . . . . . . . . . . . . . . . . . . . . . . 4.1 South Greenland Uranium Province... . . . . . . . . . 4.1.1 Ilimaussaq Intrusive Complex, Kvanefjeld . . 4.1.2 Puissagtaq Area, Igaliko...Polymetallic mineralization/mineralogy (corresponds to complex mineralization/mineralogy of some authors): Denotes...higher metamorphosed Lower Proterozoic Moldanubian complex from less metamorphosed Middle and Upper Proterozoic |  | | Report (issue) | | solubility of fluorite as a function of temperature for complex Na-Ca-Mg-Cl brines from ambient temperatures to...subsurface geology of the Saint-Honoré carbonatite complex in southern Quebec, Canada, and a schematic north-south...showing the Rustenburg Layered Suite of the Bushveld Complex, South Africa, the surface trace of significant...Karee Mine in the western part of the Bushveld Complex, South Africa....................................Geologic map and cross section of the Stillwater Complex, Montana...........................N19 Photograph |  | | Report (issue) | | Petrologically constrained subdivision of the Cache Creek complex. In: Geological Fieldwork 2018, British Columbia...Petrologically constrained subdivision of the Cache Creek complex.................... 55 van Straaten, B.I., and...prospect) and overlying rocks of the Rubyrock igneous complex formed in a suprasubduction zone setting. ...rust brown-weathering dunite, Polaris ultramafic complex. In contrast to these and to most carbonatites...River carbonatites as represented by the Upper Fir complex, which hosts one of the largest and best studied |
|
