 | | Journal (article/letter/editorial) | | the denudation of volcanic islands under sub-tropical climate (Cape Verde) ⁎ Pedro A. Dinisa, , Marina...composition of the sediments produced in volcanic islands when the climate does not favour weathering. The...collected in the “old” Maio and the “young” Fogo islands of Cape Verde archipelago are used to investigate the...transformations promoted by exogenous processes during island denudation. The main factor responsible for the...Given the arid climate (and steep land surface in Fogo), only the most labile components of basaltic rocks |  | Mata, J., Martins, S., Mattielli, N., Madeira, J., Faria, B., Ramalho, R.S., Silva, P., Moreira, M., Caldeira, R., Moreira, M., Rodrigues, J., Martins, L. (2017) The 2014–15 eruption and the short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity. Lithos, 288. 91-107 doi:10.1016/j.lithos.2017.07.001 | Journal (article/letter/editorial) | | short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity...short-term geochemical evolution of the Fogo volcano (Cape Verde): Evidence for small-scale mantle heterogeneity...short-term geochemical evolution of the Fogo volcano (Cape Verde): evidence for small-scale mantle heterogeneity...Nacional de Meteorologia e Geofísica, Mindelo, Cabo Verde 4- School of Earth Sciences, University of Bristol...2610-999 Amadora, Portugal. 9- Geologist, Cabo Verde *- Corresponding author: jmata@fc.ul.p 1 ACCEPTED |  | | Journal (article/letter/editorial) | | extracted at high MA temperature (>1050°) to avoid plagioclase crystallization. Simulations of multiple dike...oceanic island volcanoes, allow the production and preservation of temperatures above the plagioclase liquidus...intraplate volcanoes such as Fuerteventura or Fogo Island (Cape Verde ACCEPTED MANUSCRIPT Archipelago). In...proposed in the context of intraplate oceanic islands. Studies on Hawaiian volcanoes have suggested the...to all ocean islands, in particular for volcanoes such as those in the Canary, Cape Verde or Madeira Islands |  | | Journal (article/letter/editorial) | | storage and ascent during the 1995 eruption of Fogo, Cape Verde Archipelago Elliot Hildner • Andreas Klügel...Springer-Verlag 2011 Abstract The 1995 eruption of Fogo (Cape Verde Islands) differed from previous eruptions by the...pre-eruptive seismicity between Fogo and the adjacent (*20 km) island of Brava. We have conducted a thermobarometric...(\200 MPa) or lateral magma movements beneath the Fogo-Brava platform. Sr–Nd–Pb isotope ratios of samples...differ significantly from those of the 1995 and older Fogo lavas, which rules out contamination of the 1995 |  | Martins, Sofia, Mata, João, Munhá, José, Mendes, Maria Hermínia, Maerschalk, Claude, Caldeira, Rita, Mattielli, Nadine (2010) Chemical and mineralogical evidence of the occurrence of mantle metasomatism by carbonate-rich melts in an oceanic environment (Santiago Island, Cape Verde) Mineralogy and Petrology, 99 (1) 43-65 doi:10.1007/s00710-009-0078-x | Journal (article/letter/editorial) | | melts in an oceanic environment (Santiago Island, Cape Verde) Sofia Martins & João Mata & José Munhá &...Springer-Verlag 2009 Abstract Lavas from Santiago Island attest to a complex magmatic history, in which... Young (<3.3 Ma) primitive lavas from Santiago Island are characEditorial handling: A. Möller Electronic...southern Cape Verde Islands. The overall geochemical characteristics of lavas from Santiago Island allow...variable elemental and isotopic composition of Oceanic Island Basalts (OIB) has been thought to result from sampling |  | | Book | | Image: View into the Caldeira Volcano of the ocean island of Faial, Azores; © Christoph Beier, University......19 3 Magma Storage at Ocean Islands: Insights From Cape Verde Abigail K. Barker, Elin M. Rydeblad...Science and Technology University of Cape Verde Praia, Cape Verde Frank J. Spera Department of Earth Science...recently revisited for olivine + clinopyroxene + plagioclase ± spinel assemblages, provides the most precise...many basaltic systems. Other common methods are plagioclase‐liquid geothermometry (e.g., Lange et al., 2009; |  | | Journal (article/letter/editorial) | | of the active phonolitic Cadamosto Seamount, Cape Verde Lisa K. Samrock, Jo-Anne Wartho, Thor H. Hansteen...of the active phonolitic Cadamosto Seamount, Cape Verde, LITHOS, https://doi.org/10.1016/j.lithos.2019...of the active phonolitic Cadamosto Seamount, Cape Verde Lisa K. Samrock*, Jo-Anne Wartho, Thor H. Hansteen...Cadamosto Seamount is located in the SW of the Cape Verde Archipelago in the central SC Atlantic Ocean...of Africa. Many radiometric dates exist for the islands in the archipelago; however, no geochronological |  | | Journal (article/letter/editorial) | | Radiogenic Isotopes Trace elements Europium Basalt Ocean island Mantle End-members Heterogeneity a b s t r a c...ocean islands. The combined Sr, Nd, Pb isotope and trace element systematics of global ocean island basalts...re-melting as part of the mantle sources of ocean island basalts, can account for the entire range of chemical...Chemical and isotopic analyses of global ocean island basalts (OIB) over the last four decades have documented...from the FOZO-DM line towards EM (Fig. 1). Ocean island basalts with EM flavour have the most extreme isotopic |  | Merle, Renaud, Marzoli, Andrea, Bertrand, Hervé, Reisberg, Laurie, Verati, Chrystèle, Zimmermann, Catherine, Chiaradia, Massimo, Bellieni, Giuliano, Ernesto, Marcia (2011) 40Ar/39Ar ages and Sr–Nd–Pb–Os geochemistry of CAMP tholeiites from Western Maranhão basin (NE Brazil) Lithos, 122 (3) 137-151 doi:10.1016/j.lithos.2010.12.010 | Journal (article/letter/editorial) | | The new 40Ar/39Ar plateau ages obtained on plagioclase separates for high-Ti (199.7 ± 2.4 Ma) and evolved...ages obtained from whole-rock and separated plagioclase range from 190.5 ± 1.6 Ma to 198.5 ± 0.8 Ma (Baksi...clinopyroxene, plagioclase and very rare olivine. The groundmass is composed of plagioclase, clinopyroxene...doleritic texture. They contain augite, zoned plagioclase and very rare olivine phenocrysts. Oxides and...porphyritic texture with mm-sized, strongly zoned plagioclase phenocrysts. Oxides are rather large (up to about |  | | Journal (article/letter/editorial) | | are distinguished in hyper solvus granites. Plagioclase is represented by albite in the latter ones....granitoid rocks: (I) tholeiitic; (II) calcalkaline of island arcs; (III) calcalkaline of active continental...Nubian Shield in Egypt [8]; (2) I and Atype of Fogo Island of Newfound land [10]; (3) monofeldspar of...of Transbaikalia [9], and Atype granites of Fogo Island of Newfoundland [10]. Some figurative points...normalized REE composition of Atype granites from Fogo Island of Newfoundland DOKLADY EARTH SCIENCES Vol. |  | Gurenko, Andrey A., Hoernle, Kaj A., Sobolev, Alexander V., Hauff, Folkmar, Schmincke, Hans-Ulrich (2010) Source components of the Gran Canaria (Canary Islands) shield stage magmas: evidence from olivine composition and Sr–Nd–Pb isotopes. Contributions to Mineralogy and Petrology, 159 (5) 689-702 doi:10.1007/s00410-009-0448-8 | Journal (article/letter/editorial) | | Source components of the Gran Canaria (Canary Islands) shield stage magmas: evidence from olivine composition...2009 Ó Springer-Verlag 2009 Abstract The Canary Island primitive basaltic magmas are thought to be derived...from the low-silica rocks from the western Canary Islands (Gurenko et al. EPSL 277:514–524, 2009), at least...lithosphere above the plume center. Keywords Canary Islands Gran Canaria ODP Leg 157 Olivine Mantle...generated the magmas feeding volcanoes on the Canary Islands (Hoernle and Tilton 1991; Hoernle et al. 1991, |  | | Journal (article/letter/editorial) | | references Arc settings Halfmoon Pluton, Stewart Island, New Zealand (Mesozoic) Cook 1988; Wiebe and Collins...Northern Igneous Complex of Guernsey, Channel Islands (Cadomian) Topley et al. 1990a The Elizabeth Castle...Jersey, Channel Island (Cadomian) Shortland et al. 1996a Ingonish pluton, Cape Breton Island, Nova Scotia...al. 2011a Barth Island intrusion, Nain, Labrador (~1300 Ma) de Waard 1976a Newark Island Layered Intrusion...Nain, Labrador (~1300 Ma) Wiebe and Wild 1983 Fogo Island intrusion, Newfoundland, Canada (422 Ma) Currie |  | | Book | | Mitchell -Thomé GEOLOGY OF THE SOUTH ATLANTIC ISLANDS 1970 GEBRUDER BORNTRAEGER - BERLIN - STUTTGART...STUTTGART GHOPOGY SOUTH OF, PHE ATLANTIC ISLANDS by Dr. Raoul C. Mitchell -Thomé Consulting Geologist-Geophysicist... Preface The volume herewith treats only of those islands lying in the South Atlantic. There is a valid argument...ago. Dotted throughout these watery wastes are islands, all character- ized, with scarce an exception...to treat in one volume the entire collection of islands of the Atlantic Ocean rather than merely those |  | | Journal (article/letter/editorial) | | in Thermal and Cold Waters of Graciosa Volcanic Island (Azores) P.M. Carreira, M.d.R. Carvalho, J.C. Nunes...Mechanisms of Serpentinization Utilizing Olivine–Plagioclase–H2O System under Hydrothermal Conditions R. Oyanagi...Conduits of the Chã das Caldeiras Caldera (Fogo Island, Cape Verde) – REE and Fe Crystalchemistry R. Marques...Thermal Springs of Gandll K’in Gwaayaay (Hot Spring Island) Gwaii Haanas National Park Reserve S. Grasby, |  | Geldmacher, Jörg, Hoernle, Kaj, Klügel, Andreas, van den Bogaard, Paul, Bindeman, Ilya (2008) Geochemistry of a new enriched mantle type locality in the northern hemisphere: Implications for the origin of the EM-I source. Earth and Planetary Science Letters, 265 (1) 167-182 doi:10.1016/j.epsl.2007.10.001 | Journal (article/letter/editorial) | | anomaly. As observed in mid-ocean-ridge and ocean-island basalts, there is a systematic decrease of 207Pb/204Pb... As compiled by Weaver (1991), OIB lavas from islands and seamounts considered as EM-I-type localities...(P = Pitcairn, T = Tristan da Cunha/Inaccessible Island, G = Gough, W = Walvis Ridge, D = Discovery Seamount...EM-I-type localities, defined here as volcanic islands/seamounts whose volcanic rocks predominantly have...Aphanasy Nikitin) (Fig. 1a). Although some ocean islands show compositional trends towards an EM-I composition |  | | Book | | (Rostock) I am indebted for his contribution on the island of Socotra. I am grateful to Dr. Christian Witschel...Burkina Faso Burundi Cameroon Canary Islands (Spain) Cape Verde Central African Republic Chad The Comoros...territories of continental Africa and adjacent islands considered in the atlas are home for about 850...outlined in the epilogue for the Gondwana 10 Symposium (Cape Town 1999) by Ashwal and De Wit (2000), much of...postulated a zone of volcanism extending from the Cape to Ethiopia,roughly parallel to the Indian Ocean |  | Maftei, Andreea Elena, Dill, Harald G., Buzatu, Andrei, Iancu, Ovidiu Gabriel, Buzgar, Nicolae, Andráš, Peter (2018) Chemical and mineralogical composition of fluvial sediments (Bistrita River, Romania): Geogenic vs. anthropogenic input into rivers on its way through mining areas. Geochemistry, 78 (3) 385-395 doi:10.1016/j.chemer.2018.03.001 | Journal (article/letter/editorial) | | content in K-feldspar and are richer in acid plagioclase feldspar. No correlation was observed between...weathering than anorthite (Ca-plagioclase) (Sak et al., 2004). The presence of plagioclase in the sediments in...Table 3) shows an incipient stage of weathering. Plagioclase has a faster rate of alteration, even faster...chemical datasets attests to the abundance of plagioclase s.s.s and, hence, a moderate degree of chemical...Iron speciation in volcanic topsoils from Fogo island (Cape Verde) — iron oxide nanoparticles and trace elements |  | Hopkins, Jenni L., Timm, Christian, Millet, Marc-Alban, Poirier, André, Wilson, Colin J.N., Leonard, Graham S. (2016) Os isotopic constraints on crustal contamination in Auckland Volcanic Field basalts, New Zealand. Chemical Geology, 439. 83-97 doi:10.1016/j.chemgeo.2016.06.019 | Journal (article/letter/editorial) | | intraplate basaltic volcanic fields in the North Island, New Zealand. PT Previous studies on AVF eruptive...nephelenites and alkaline basalts that are akin to Ocean Island Basalts (OIBs) (e.g., Huang et al., 1997; Cook...traced continuously through the North and South islands of New Zealand (Hatherton and Sibson, 1970). The...minor olivine phenocrysts (≤3 mm across) in a plagioclase, pyroxene, and olivine-bearing groundmass, except...element distributions broadly similar to ocean island basalt (OIB) (normalisation values after McDonough |  | | Journal (article/letter/editorial) | | (e.g., Rio Grande Rift), and (4) within oceanic islands (Hawaii; see Nixon 1987 for a summary of occurrences)...• Peridotite xenoliths from the Oceanic island of Cape Verde (Coltorti et al. 2010). • Peridotite xenoliths... contain garnet and/or spinel and/or rarely plagioclase. For example, garnet peridotites are found in...Acken et al. 2017; Bragagni et al. 2017) while plagioclase-spinel peridotites American Mineralogist, vol...Montferrier (French Massif Central) and Kerguelen Island. Type 4 BMS exclusively occur as intergranular |  | Rosenthal, A., Foley, S.F., Pearson, D.G., Nowell, G.M., Tappe, S. (2009) Petrogenesis of strongly alkaline primitive volcanic rocks at the propagating tip of the western branch of the East African Rift. Earth and Planetary Science Letters, 284 (1) 236-248 doi:10.1016/j.epsl.2009.04.036 | Journal (article/letter/editorial) | | Harwood, 1932; Tappe et al., 2003). The absence of plagioclase distinguishes these from lavas occurring in the...systematics in Fogo Island: Evidence for lower continental crust fragments under the Cape Verde Southern Islands...Islands. Chem. Geol. 219, 93–113. Falloon, T.J., Green, D.H., 1989. The solidus of carbonated, fertile...G. et. al., (Ed), J.B. Dawson volume, Red Roof, Cape Town, 1999, pp. 238–246. Foley, S.F., Andronikov...chemical and multi-isotope study of the Western Cape olivine melilitite province, South Africa: implications |  | | Journal (article/letter/editorial) | | discordant dunite and wehrlite at Union Bay, Duke Island, Giant Mascot, and Emigrant Gap (Ruckmick and Noble...clots of hornblende, biotite, opaque oxides and plagioclase; on Icicle Ridge, the xenolith suite includes...common than Cpx > Opx. Websterite only contains plagioclase within 5 m of contacts with gabbronorite or melanocratic...melanocratic diorite. Where it occurs, plagioclase is calcic, with A n > 80 in some cases. Olivine occurs...as well. Plagioclase, where present, is usually strongly saussuritized, unlike in plagioclase-bearing |  | | Report (issue) | | MINERALS FOR THE COLLECTOR: THE MAGDALEN ISLANDS, QUEBEC, AND THE ISLAND OF NEWFOUNDLAND Ann. P. Sabina DEPARTMENT... . 1 Collecting along the islands 1 The Magdalen Islands The islands ............................... . . . . . . . . . . . . . Collecting on the islands . . . . . . . . . . . . . . . . . . . . . . . ...Mineral Collecting on the Islands: Cap-aux-Meules to Grande-Entree Grindstone Island (Ile du Cap aux Meules)... . . . . . . . . . . . . . . . . . . . Alright Island (Ile du Havre aux Maisons) . . . . . . . . . . |  | | Report (issue) | | infiltration: A case study of Sal mantle xenoliths, Cape Verde Archipelago . . . . . . . . . . . . . . . . ...northern Sudan. The lower-crust xenoliths include plagioclase- and garnet-bearing mafic granulite. Ultramafic...metamorphism and granitoid magmatism, Neoproterozoic island-arc formation, collision, and metamorphism ca....(2) accretion of abundant Neoproterozoic juvenile island-arc material toward and on the Arabian plate (Fig...field, NE Sudan (Fig. 1). This suite consists of plagioclase-bearing granulite and—summarized as ultramafic |  | | Report (volume) | | West Indies, and adjacent islands, and also Guam and other Pacific island possessions-but not the trust...Res. Coordinating Board Ground-Water Map-Rhode Island and Providence Plantations Water Resources Coordinating...Water Res. Coordinating Board Geol. Bull.-Rhode Island Water Resources Coordinating Board Geological Bulletin...Ground water map of the Crompton quadrangle, Rhode Island, showing water-bearing formations and related ground-water...East Providence quadrangle, Massachusetts-Rhode Island, showing water-bearing formations and related ground-water |  | | Report (volume) | | the North American continent, including adjacent islands, Hawaii, and Guam, that have appeared in the literature...follows: Gems and gem materials. Cunacla, Baffin Island ': Field. D. S. M. 3 Emerald, absorption spectrum...place under the heading Oil and gas fields. Long Island is not under L, but under New York. Frozen mammoth...Indus. Dev. Comm., Geol. Bull.; Sci. Contr. Rhode Island Port and Industrial Development Commission, Geological...State Geologists' Journal. Staten Island Inst. Arts Sci. Proc. Staten Island Institute of Arts and Sciences |
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