 | | Journal (issue) | | Switzerland Famous mineral localities: zeolites from Iceland and the Faeroes .................................written on by every generation o f mineralogists. Iceland and the Faeroes have pro duced huge amounts o... An atypically sunny day near Helgusta5anama, Iceland; Holmatindur (Holma Peak) near ReySarfjorSur is...January-February, 1981 5 INTRODUCTION In the region of the North Atlantic, vast areas of the land and...Province. These basalts, visible in eastern and western Greenland, Iceland, Jan Mayen, the Faeroes, Scotland |  | | Journal (article/letter/editorial) | | Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavik, Iceland (Received October 30, 2000; accepted...compositions of stilbite SS in Tertiary metabasalts in Iceland and Icelandic geothermal systems change systematically...compositional-relations in metabasalts at Berufjördur, Iceland, measured temperatures of zeolite mineral distribution...of these minerals in low-grade metabasalts of Iceland, as well as the observed temperature of the stilbite...zeolite paragenesis in active geothermal systems in Iceland, were used to supplement calorimetric and phase |  | | Journal (article/letter/editorial) | | Harvard's Mineralogical Tour of Iceland Downloaded by [University of Florida] at 17:55 08 August 2017...late evening flight on Icelandair to Keflavik, Iceland. T H E HARVARD MINERALOGICAL MUSEUM AS S O C... in Iceland. A group of nineteen individuals from across the United States participated. Iceland presented...process of formation. Volcanoes are very common in Iceland, erupting on the average of one in every five years...000 years. Most types of volcanoes are known in Iceland, with fissure eruption being the most common; shield |  | | Journal (article/letter/editorial) | | Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland ABSTR ACT The effects of CO2...the level of atmospheric CO2. A project in SW Iceland, including scientists from different fields, is...interaction at low CO2 concentrations have shown quartz/chalcedony, clays and zeolites as well as calcite to be...2001); HN-1 well water (Reykjavik Energy database, Iceland). The thermodynamic properties for phyllosilicates...CO2-water and basaltic glass from Stapafell, SW Iceland (Oelkers and Gı́slason, 2001). Basaltic glass dissolution |  | | Journal (article/letter/editorial) | | of CO2 at the CarbFix site at Hellisheidi, SW-Iceland Sandra Ó. Snæbjörnsdóttir, Sigurdur R. Gislason...of CO2 at the CarbFix site at Hellisheidi, SW-Iceland, Geochimica et Cosmochimica Acta (2017), doi: https://doi...Hellisheidi, SW-Iceland Sandra Ó. Snæbjörnsdóttir Institute of Earth Sciences University of Iceland Askja Sturlugata...Sturlugata 7 101 Reykjavík, Iceland tel. 354-525-5414 fax. 354-525-4499 sos22@hi.is Reaction path modelling...of CO2 at the CarbFix site at Hellisheidi, SW-Iceland 1 Sandra Ó. Snæbjörnsdóttir1, Sigurdur R. Gislason1 |  | Ottens, Berthold, Götze, Jens, Schuster, Ralf, Krenn, Kurt, Hauzenberger, Christoph, Zsolt, Benkó, Vennemann, Torsten (2019) Exceptional Multi Stage Mineralization of Secondary Minerals in Cavities of Flood Basalts from the Deccan Volcanic Province, India. Minerals, 9 (6) 351 doi:10.3390/min9060351 | Journal (article/letter/editorial) | | stilbite) as well as plagioclase was overgrown by chalcedony, and finally a second calcite (II) and zeolite...characterized encrusted by chalcedony, unusual twinned calcite crystals, and encrusted chalcedony, unusual twinned...basalt was undertaken for for the the basalts of Iceland [19]. Later on the basalts provinces. Most Mostbasic...was undertaken basalts of Iceland [19]. studies Later studies on the of Iceland [11], Greenland [20,21]...Scotland [23], and[23], Northern Ireland basalts of Iceland [11], Greenland Faroe Islands Isle of Skye, Scotland |  | Rogers, Karyn L., Neuhoff, Philip S., Pedersen, Asger K., Bird, Dennis K. (2006) CO2 metasomatism in a basalt-hosted petroleum reservoir, Nuussuaq, West Greenland. Lithos, 92 (1) 55-82 doi:10.1016/j.lithos.2006.04.002 | Journal (article/letter/editorial) | | hydrothermal and deformation events affecting this region. Regional metamorphism resulted in extensive occlusion...exposures of a basaltic petroleum reservoir. This region is ideal for characterizing the evolution of these...Paleogene rocks from the Labrador Sea to Baffin Bay region. The Nuussuaq Basin belongs to a complex of sedimentary...Generalized geologic map of the Nuussuaq-Disko region in West Greenland. The crosshatched areas indicate...basalts. extensional fault system establishes the eastern boundary (Chalmers et al., 1999). In the early |  | | Journal (issue) | | email at roy.starkey@gmail.com 10 Zeolites (rom Iceland DavidHardman When I started collecting seriously...Svappavaara in North Sweden) and mesolite (from Iceland). However, the Greeks,Romansand Mayasknew about...be used to aid marine navigatior1_.;specimen of Iceland Spar from this locality was recovered from the...now little to see or collect. So treasure any Iceland Spar specimensyou may havefrom this locality! ...on the east coast and just to the south is the Teigarhorn area and the Berufjord, also classic zeolite |  | | Journal (article/letter/editorial) | | Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavík, Iceland Reykjavík Energy, Baejarhálsi...Baejarhálsi 1, 110 Reykjavík, Iceland Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley CA 94720...and compared to observed basalt alteration in Iceland and Greenland. Overall simulated and observed alteration...Reykjavík Energy, Baejarhálsi 1, 110, Reykjavík, Iceland. Tel.: +354 516 6992; fax: +354 516 6709. E-mail...CO2 mineral sequestration. Natural analogs from Iceland and Greenland were used to identify primary and |  | Stefánsson, Andri, Arnórsson, Stefán, Sveinbjörnsdóttir, Árný E., Heinemaier, Jan, Kristmannsdóttir, Hrefna (2019) Isotope (δD, δ18O, 3H, δ13C, 14C) and chemical (B, Cl) Constrains on water origin, mixing, water-rock interaction and age of low-temperature geothermal water. Applied Geochemistry, 108. 104380 doi:10.1016/j.apgeochem.2019.104380 | Journal (article/letter/editorial) | | Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavík, Iceland Aarhus AMS Centre, Department...Consulting Engineers, Lynghás 4, 110 Reykjavík, Iceland A R T I C LE I N FO A B S T R A C T Editorial...low-temperature geothermal water from northern Iceland were investigated in order to delineate the origin...cold and low-temperature geothermal waters in the region display a complex story, with waters originating...of waters for a given low-temperature region in northern Iceland. The dataset is extensive and includes |  | | Journal (article/letter/editorial) | | Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland a r t i c l e i n f o Article...initial basalt alteration of SiO2-minerals (opal, chalcedony and/or quartz), Al–Si containing minerals like...quartz observed at b150 °C in the Disko–Nuussuaq region in W Greenland (Rogers et al., 2006), and the formation...basaltic rocks, such as being planned at Hellisheidi, Iceland (Matter et al., 2009, 2011; Gíslason et al., 2010;...spring water from Vellankatla, both collected in SW Iceland (Table 1). The basaltic glass was dry sieved to |  | | Journal (article/letter/editorial) | | Northern Iceland Thráinn Fridriksson a,*, Stefán Arnórsson b, Dennis K. Bird c a Iceland GeoSurvey...Grensásvegur 9, 108 Reykjavı́k, Iceland Institute of Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavı́k...Reykjavı́k, Iceland c Department of Geological and Environmental Sciences, Stanford University, Stanford...Skagafjördur, a Tertiary tholeiitic flood basalt region in northern Iceland range between 0.10 and 28 ppb. Surface...relative mobilities of these elements elsewhere in Iceland and in other basaltic regions. Peat soil waters |  | | Journal (article/letter/editorial) | | secondary alteration minerals including quartz, chalcedony, opal, calcite, nontronite, saponite, and zeolites...cavities were filled with other minerals including chalcedony, opal, and a zeolite. These mineralogical observations...Infrared band assignments in the OH-stretching region, following assignments made in Besson and Drits...sandstones of the Rewan Group, southern Bowen Basin, eastern Australia, Clay Minerals, 32, 4, 499–506. Benson...their infrared spectra within the OH stretching region; Part I, Identification of the OH stretching bands |  | | Journal (article/letter/editorial) | | Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland a r t i c l e i n f o Article...being incorporated into Ca–Mg–Fe carbonates and chalcedony. At 150 and 250 °C, the pH increased from ~ 5...depend on temperature. The mineralization of chalcedony at 75 °C inhibited the formation of clays resulting...Karingithi et al., 2010). Clays, zeolites and chalcedony become the predominant Al–Si bearing minerals...Vellankatla (Tables 1 and 2), both located in SW Iceland. Four experiments were conducted at initial dissolved |  | | Journal (article/letter/editorial) | | contain a variety of zeolites and quartz (agate, chalcedony, jasper, and amethyst), together with native...as at Antrim, in Ireland (Walker 1960) and in Iceland (e.g., Neuhoff et al. 1999). The purpose of this...mineral assemblages found at depths of 1500 m in Iceland (Neuhoff et al. 1999) and in thick piles of basalt...graben. Furthermore, unlike the host basalts in Iceland and Minnesota, the North Mountain Basalt shows...(Odin et al. 1988). In hydrothermal systems in Iceland, a smectite-group mineral is present at temperatures |  | | Journal (article/letter/editorial) | | and up to 90C ground waters in a basalt area, N-Iceland: processes controlling its mobility Stefán Arnórsson*...Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavı´k, Iceland Abstract The concentrations...ground waters in a tholeiite flood basalt area in N-Iceland lie in the range < 0.03–10 mg/kg. With few exceptions...the 250 C geothermal seawater at Reykjanes, Iceland, contains 96–147 mg/kg As (Ólafsson and Riley...Námafjall and Krafla high-temperature fields, N-Iceland, contain 2–48 mg/kg As (Arnórsson et al., 1999) |  | | Journal (article/letter/editorial) | | Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavik, Iceland Received 24 June 2011; accepted...(http://www.carbfix.is) is a pilot field scale study in SW Iceland aiming at sequestrating CO2 from the Hellisheidi...Fe-oxyhydroxides were formed followed by SiO2 (chalcedony) and Al–Si containing minerals like allophane...mineralogical observations in the Disko-Nuussuaq region in W Greenland, the interaction of CO2-rich fluids... the observed mineralogy in the Disko-Nuussuaq region resulted from open system basalt–fluid interaction |  | | | | at Conil. Found frequently around volcanoes in Iceland, Japan, Hawaii, Mexico, and South America. 20...crystals in Oklahoma-Kansas-Missouri lead-zinc region. Also around Bisbee, Arizona. Some optical calcite...at Helgustadir, on Eskifjord, Iceland, where large crystals of “Iceland spar” are in basalt. 84 5 X...Thuringia. At the Ste. Marie aux Mines in the Alsace region of France, pharmacolite occurs as botry¬ oidal...Also found at Aussig, Czechoslovakia; and Teigarhorn, Iceland. 186 X 1/3 Apophyllite (White to light |  | | Book (edition) | | at Conil. Found frequently around volcanoes in Iceland, Japan, Hawaii, Mexico, and South America. 20...crystals in Oklahoma-Kansas-Missouri lead-zinc region. Also around Bisbee, Arizona. Some optical calcite...at Helgustadir, on Eskifjord, Iceland, where large crystals of “Iceland spar” are in basalt. Calcite...Thuringia. At the Ste. Marie aux Mines in the Alsace region of France, pharmacolite occurs as botryoidal or...Also found at Aussig, Czechoslovakia; and Teigarhorn, Iceland. 186 1/3 Apophyllite (White to light |  | | Journal (issue) | | and stretching along the Leba dunes and Gdansl< region, they reach the Vistula Spit beyond Krynica Morska...Carson I. A. Ritchie ICELAND SfR RUKJAVI HOLSMYRI VIK There are no rockshops in Iceland. You have to visit...collecting. This is a very pleasurable experience. Iceland is so undeveloped that every thing offers the...originated. . Because of its very long coastllne, Iceland offers particularly fine beaches, such as the splendid...particular gem, Iceland Spar, is unique to the country. Others, such as opal, chalcedony and jasper, appear |  | | Journal (article/letter/editorial) | | in Tertiary basaltic lavas in the North Atlantic region indicate that individual zeolite minerals are distributed...zeolite deposits, such as those in the North Atlantic region, are among the most common occurrences of these...Data taken from Walker (1960b; Iceland basalts), this study (Iceland and East Greenland basalts), Schmidt...basalts), Kristmannsdottir and T6masson (1978; Iceland geothermal systems), Iijima (1988; Japan sediments)...observa tions of zeolite-zone parageneses in Iceland and Greenland, summarized below. Downloaded by |  | | Book | | retain their inner crystalline structure, e.g. chalcedony. All minerals are solid with one exception:...they often become filled with quartz, agate or chalcedony. The largest part of the gases and vapour escapes...Steatite) weathering product of serpentine opal, chalcedony, magnesite, chlorite SEPIOLITE Mgu k ((OH)2Si...(Calcareous Spar) Helgustadir, Reydarfjérdur, Iceland CALCITE CaCOs (Calcareous Spar) Cumberland, England...prehnite, cf. No. 272 in cavities in limonite deps. chalcedony, some opals in ore veins, in cavities & fissures |  | | Journal (article/letter/editorial) | | com/locate/chemgeo Geochemistry of CO2-rich waters in Iceland Dana L. Thomas a,⁎, Dennis K. Bird a, Stefán Arnórsson...Earth Sciences, University of Iceland, Sturlugata 7, 101 Reykjavík, Iceland a r t i c l e i n f o Article...in Iceland from volcanic systems of the Mid-Atlantic Ridge and off-rift volcanic areas of Iceland provide...from the Snæfellsnes Peninsula, within the South Iceland Seismic Zone and on the margin of the Torfajökull...and low and high-temperature geothermal fluids in Iceland. Our conceptual model for the evolution of thermal |  | Renac, Christophe, Kyser, Kurtis, Bowden, Peter, Moine, Bertrand, Cottin, Jean-Yves (2010) Hydrothermal fluid interaction in basaltic lava units, Kerguelen Archipelago (SW Indian Ocean) European Journal of Mineralogy, 22 (2) 215-234 doi:10.1127/0935-1221/2009/0022-1993 | Journal (article/letter/editorial) | | basaltic lava piles around the world in Scotland, Iceland, Brazil, Namibia, Columbia River and India, very...archipelago, where the rainfall is 8 m/y, and eastern parts, where the rainfall is only 0.8 m/y, result...Ross at 1850 m, which produce dryer winds on the eastern side of the island. Cold desert climate conditions...units and present-day hot spring activity (e.g., eastern Val Travers and western Rallier du Baty) along...(western, ‘‘Mont des Fumeroles’’ on Rallier du Baty; eastern, Val Travers). zeolite parageneses thus providing |  | | Journal (article/letter/editorial) | | chalcedonies found their way, along with those of Iceland, into the mineralogical cabinets of Europe. The... 2015 4 EDINBURGH GEOLOGICAL SOCIETY. to Iceland, and recorded two or three additional localities...themselves almost exclusively with the geology of the region. To the last named, however, I have to express...the analyses (good and bad) of Faeroe minerals. Chalcedony. Bergemann, quoted by Traill, he. cit., p. 31...[35]). Agate (C. C. Leonhard [35]). Common as chalcedony and onyx are in Faeroe, true agate is very rare |
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