 | | Journal (article/letter/editorial) | | 683â705 Diamond and coesite in ultrahigh-pressureâultrahigh-temperature granulites from Ceuta, Northern...Ciencias, Universidad de MaĚlaga, 29071 MaĚlaga, Spain Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad...de Granada. Facultad de Ciencias, 18071 Granada, Spain [Received 11 November 2011; Accepted 12 March 2012;...Associate Editor: Sergey Krivovichev] ABSTRACT Diamond and coesite occur in granulites of the Internal...Internal Zone of the Rif belt in northwest Africa. Diamond, identiďŹed by optical microscopy, electron microprobe |  | | Journal (article/letter/editorial) | | QUANTIFICATION OF DIAMONDS FROM THE RIF GNEISSES (SPAIN AND MOROCCO): ECONOMIC IMPLICATIONS MARĂA DOLORES...MineralogĂa, Universidad de MĂĄlaga, 29071 MĂĄlaga, Spain 2 Instituto 3 Departamento Andaluz de Ciencias...Tierra, CSIC-Universidad de Granada, 18071 Granada, Spain de AnĂĄlisis EconĂłmico y Finanzas, Universidad de...Real, Spain Abstract Microdiamonds from granulite facies gneisses of the Northern Rif (Spain and Morocco)...studied by electron backscatter diffraction (EBSD). Diamond identification using other techniques, such as |  | | Journal (article/letter/editorial) | | TOBELITE IN META-RHYOLITES FROM THE CEUTA ZONE (RIF BELT, SPAIN): EVIDENCE FOR MOBILITY OF NITROGEN IN...de Ciencias, Campus de Teatinos, 29071 MĂĄlaga, Spain Abstract We have conducted a detailed chemical...products of cordierite in metarhyolites from the Ceuta zone (Rif belt) with the aim of determining the...transformation in Hercynian rhyolites from the Ceuta zone (Northern Rif, Spain), with the aim of: (1) determining...crustal rock units have been identified in the Ceuta zone: (1) a meta-sedimentary (Filali-type) unit |  | | Journal (article/letter/editorial) | | schists from the Torrox unit, Betic Cordillera, Spain MARIA DOLORES RUIZ CRUZ1,* and CARLOS SANZ DE GALDEANO2...Ciencias, Universidad de MaĚlaga, 29071 MaĚlaga, Spain *Corresponding author, e-mail: mdruiz@uma.es 2 Instituto...de Granada, Facultad de Ciencias, 18071 Granada, Spain Abstract: Microdiamond inclusions in garnet have...complex, Internal Zone of the Betic Cordillera, Spain. Prior to this, ultrahigh-pressure (UHP) phases...uncertain. Key-words: diamond, garnet, UHP metamorphism, schists, Betic Cordillera, Spain. 1. Introduction |  | | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/lithos Coesite and diamond inclusions, exsolution microstructures and chemical...patterns in ultrahigh pressure garnet from Ceuta (Northern Rif, Spain)â M.D. Ruiz-Cruz a,â, C. Sanz de Galdeano...Ciencias, Universidad de MĂĄlaga, 29071 MĂĄlaga, Spain Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad...de Granada, Facultad de Ciencias, 18071 Granada, Spain a r t i c l e i n f o Article history: Received...from diamondiferous granulites of Ceuta (BeticâRif cordillera, Spain and Morocco) contains a variety of |  | | Journal (article/letter/editorial) | | Jubrique zone (AlpujĂĄrride Complex, Betic Cordillera, Spain): evidence for a pre-Alpine emplacement of the Ronda...Facultad de Ciencias, Universidad de MĂĄlaga, MĂĄlaga, Spain; b Instituto Andaluz de Ciencias de la Tierra, Facultad...Ciencias, CSIC-Universidad de Granada, Granada, Spain (Received 10 November 2013; accepted 11 March 2014)...lherzolite slabs (1.5 to 2 km thick) in southern Spain. Despite clear evidence that preAlpine events affected...domain (internal zone of the Betic-Rif Cordillera, Spain, and Morocco), numerous papers continue to emphasize |  | | Journal (article/letter/editorial) | | Raman study of diamond-based abrasives, and possible artefacts in detecting UHP microdiamond...Steger, Simon, Reissner, Claudia, Raman study of diamond-based abrasives, and possible artefacts in detecting... T ACCEPTED MANUSCRIPT RI P Raman study of diamond-based abrasives, and NU SC possible artefacts... Raman spectral characteristics of a range of diamond-based abrasives (powders and RI P sprays) and...Some abrasives show strong broadening of the main diamond band [FWHM (full SC width at half band-maximum) |  | | Journal (article/letter/editorial) | | from the Jubrique Unit of the Betic Cordillera, S Spain Hans-Joachim Massonne â Institut fĂźr Mineralogie...studied rocks never reached PâT conditions of the diamond stability ďŹeld, it is concluded that the previously...Jubrique Unit of the Betic Cordillera in southern Spain. The reason for this selection is a very recent...Galdeano (2012, 2013a) reported both coesite and diamond nanoinclusions in garnet of kyanite/sillimanite-bearing...of Ruiz Cruz and Sanz de Galdeano, 2013a), from Ceuta, the Spanish enclave at the African coast of the |  | | Journal (article/letter/editorial) | | was known in impact rocks and in xenoliths in diamond-bearing kimberlites. So what would coesite be doing...more and more elusive. The recent discoveries of diamond in Alpine oceanic rocks and of what is interpreted...Fang QS, Robinson PT, Zhang J, Green HW (2007) Diamond- and coesite-bearing chromitites from the Luobusa...Carbonate dissolution during subduction revealed by diamond-bearing rocks from the Alps. Nature Geoscience...possible âorganicâ light carbon isotopes observed in diamond and moissanite in kimberlite xenoliths and chromitite |  | | Journal (article/letter/editorial) | | Pottery Glazes from SW Mallorca (Balearic Islands, Spain) Daniel J. Albero Santacreu 1, *, Jose C. Carvajal...University of the Balearic Islands, 07122 Palma, Spain School of Archaeology and Ancient History, University...University of the Balearic Islands, 07122 Palma, Spain; arbenito@outlook.com Correspondence: d.albero@uib...Pottery Glazes from SW Mallorca (Balearic Islands, Spain). Minerals 2022, 12, 106. https:// doi.org/10.3390/min12010106...productions. In the case of Mallorca (Balearic Islands, Spain), the technological study of Islamic ceramics by |  | | Journal (article/letter/editorial) | | is the chief gold and diamond producing region in the world . . .; the diamond fields are in Griqualand...hinterlands are much overrated (p. 134), and the value of Ceuta is much under? rated (p. 36). The paper, print, |  | | Journal (article/letter/editorial) | | 1968; Spetsius, 2004), including coesite- and diamond- 37 bearing varieties. CE P TE D MA NU ... IP T 74 The eclogite mantle xenolith from diamond-free Obnazhennaya pipe (Kuoika kimberlite field...(Mposkos and Kostopoulos, 2001), from Ceuta, Northern Rif, Spain (Ruiz-Cruz and Sanz de 291 Galdeano...feature of eclogites and 299 websterites from diamond-free Obnazhennaya kimberlite pipe. Na2O contents...comparable with ZrO2 contents in rutiles from diamond inclusions (0.03â0.19 wt %; 347 Sobolev and Yefimova |  | Barich, Amel, Acosta-Vigil, Antonio, Garrido, Carlos J., Cesare, Bernardo, TajÄmanovĂĄ, Lucie, Bartoli, Omar (2014) Microstructures and petrology of melt inclusions in the anatectic sequence of Jubrique (Betic Cordillera, S Spain): Implications for crustal anatexis. Lithos, 206. 303-320 doi:10.1016/j.lithos.2014.08.003 | Journal (article/letter/editorial) | | anatectic sequence of Jubrique (Betic Cordillera, S Spain): Implications for crustal anatexis Amel Barich...anatectic sequence of Jubrique (Betic Cordillera, S Spain): Implications for crustal anatexis, LITHOS (2014)...anatectic sequence of Jubrique (Betic Cordillera, S Spain): implications for PT crustal anatexis Amel Baricha...Avenida de las Palmeras 4, 18100 Armilla, Granada, Spain b Department of Earth Sciences, Swiss Federal Institute...the Ronda peridotite slab (Betic Cordillera, S Spain). The gneissic sequence is composed of mylonitic |  | | Journal (article/letter/editorial) | | is the chief gold and diamond producing region in the world . . .; the diamond fields are in Griqualand...hinterlands are much overrated (p. 134), and the value of Ceuta is much under? rated (p. 36). The paper, print, |  | | Journal (article/letter/editorial) | | is the chief gold and diamond producing region in the world . . .; the diamond fields are in Griqualand...hinterlands are much overrated (p. 134), and the value of Ceuta is much under? rated (p. 36). The paper, print, |  | | Journal (article/letter/editorial) | | conditions and near-adiabatic exhumation path of diamond-bearing garnetâclinopyroxene rocks from the Eger...conditions and near-adiabatic exhumation path of diamond-bearing garnetâclinopyroxene rocks from the Eger...in-zircon thermometry. Zircon mantle domains with diamond inclusions contain 111â189 ppm Ti, reflecting temperatures...1037â1117 °C. The peak pressure consistent with diamond stability corresponds to c. 4.5â5.0 GPa. Ti-in-garnet...Ti-in-garnet thermometry using the Ti content of diamond-bearing garnet core yielded temperatures of 993â1039 |  | | Journal (article/letter/editorial) | | rutile-silicate rods in garnet from UHP granulites (Ceuta, northern Africa). The only reported occurrence...multiphase inclusions Multiphase inclusions in the UHP diamond-bearing saidenbachite of the Erzgebirge, Germany...(Kerala Khondalite Belt, India; Ronda migmatites, Spain; and Barun Gneiss, Nepal Himalaya). Their melt inclusions...unequivocal UHP indicators such as coesite or diamond in our rocks. We conclude that the acicular, oriented...(Dludla et al. 2006). R = Garnet pyroxenite, Ronda, Spain (Obata 1994; Brueckner and Medaris 2000). Rh = Metapelitic |  | Bruguier, Olivier, Bosch, Delphine, Caby, Renaud, Vitale-Brovarone, Alberto, Fernandez, Laure, Hammor, Dalila, Laouar, Rabah, Ouabadi, Aziouz, Abdallah, Nachida, Mechati, Mehdi (2017) Age of UHP metamorphism in the Western Mediterranean: Insight from rutile and minute zircon inclusions in a diamond-bearing garnet megacryst (Edough Massif, NE Algeria) Earth and Planetary Science Letters, 474. 215-225 doi:10.1016/j.epsl.2017.06.043 | Journal (article/letter/editorial) | | from rutile and minute zircon inclusions in a diamond-bearing garnet megacryst (Edough Massif, NE Algeria)...Mediterranean UâPb dating zircon rutile a b s t r a c t Diamond-bearing UHP metamorphic rocks witness for subduction...analyses of zircon and rutile inclusions from a diamond-bearing garnet megacryst collected in a mĂŠlange...growth in a closed system. It contains metamorphic diamond inclusions (up to 50 Îźm in size, see Fig. 3A) that...pressure for entering the diamond stability ďŹeld at 750 °C, based on the graphite/diamond transition curve of |  | | Report (issue) | | before middle-Miocene. Comparisons with southern Spain showed the Sameness of former rocks with those describeci...Coquand (1846-47) 1 ayant parcouru la rĂŠgion de Ceuta pour le compte du Sultan, Ă la recherche de substances...intercalation serpentineuse > dans les gneiss de Ceuta. Le3 travaux ultĂŠrieurs, jusque vers 1930, n'apportent...rĂŠguliers effectuĂŠs au 1/100 000 dans la rĂŠgion de Ceuta et de TĂŠtouan, permettent Ă E. Du p uy de Lame,...constituent 3 massifs gneissiques : celui du Hacho de Ceuta nu Nord, celui du Cabo Negro (Ras-Tarf), et celui |  | JanĂĄk, M., Froitzheim, N., Yoshida, K., SasinkovĂĄ, V., Nosko, M., Kobayashi, T., Hirajima, T., Vrabec, M. (2015) Diamond in metasedimentary crustal rocks from Pohorje, Eastern Alps: a window to deep continental subduction. Journal of Metamorphic Geology, 33 (5) 495-512 doi:10.1111/jmg.12130 | Journal (article/letter/editorial) | | metamorphic Geol., 2015 doi:10.1111/jmg.12130 Diamond in metasedimentary crustal rocks from Pohorje,...Slovenia ABSTRACT We report the first finding of diamond and moissanite in metasedimentary crustal rocks...observations and Raman spectroscopy show that diamond occurs in situ as inclusions in garnet, being heterogeneously...colour. The Raman spectra of the investigated diamond show a sharp, first order peak of sp3-bonded carbon...(sp2-bonded) carbon. Detailed observations show that diamond occurs either as a monomineralic, single-crystal |  | | Book | | useful around the Balearic Islands and the coast of Spain. Other published bathymetric charts cover the Algerian...less than 1500 m, it is bordered on the north by Spain and on the south by Morocco and western Algeria...Strait of Gibraltar and a line joining Cape de Gata, Spain to Cape Fegalo, Algeria. A section of the continental...Two marginal plateaus also exist off the coast of Spain. There is a small plateau southwest of Cape de Gata...Slope The gradient of the continental slope off Spain is relatively constant with 1:30 being a representative |  |  ernok, A., Ballaran, T. B., Caracas, R., Miyajima, N., Bykova, E., Prakapenka, V., Liermann, H.-P., Dubrovinsky, L. (2014) Pressure-induced phase transitions in coesite. American Mineralogist, 99 (4) 755-763 doi:10.2138/am.2014.4585 | Journal (article/letter/editorial) | | of coesite was studied on single crystals using diamond-anvil cells with neon as the pressure-transmitting...coesite, high-pressure polymorph, metastable, diamond-anvil cell, high-pressure Raman spectra Introduction...within clinopyroxene, olivine, garnet, or diamond. Coesite-in-diamond assemblage was recently introduced as...High-pressure Raman spectroscopy Piston-cylinder type diamond-anvil cells (DAC) developed at BGI (Kantor et al...low-intensity peaks of coesite are suppressed by strong diamond peak centered near 1300 cmâ1. We performed five |  | | Report (issue) | | ⢠⢠Millstones ⢠⢠â˘â˘ â˘â˘ â˘â˘ Grindstones â˘â˘ ⢠⢠Spain Emery ⢠⢠â˘â˘ ⢠â˘. â˘â˘ Carborundum â˘â˘ â˘â˘ ⢠⢠swedenEmery...Hungary â˘â˘ ⢠⢠Italy (c) â˘â˘ Norway (c) ⢠⢠â˘â˘ â˘â˘ Spain â˘â˘ Sweden (c} ⢠⢠â˘â˘ Switzerland ⢠⢠U .S.S.R. (Russia)...⢠Sheets and wire ⢠⢠â˘â˘ â˘â˘ Alwninium sulphates Spain ⢠⢠â˘â˘ ⢠⢠Alumina ⢠⢠⢠⢠.. . Ingots and scrap...Netherlandsâ˘â˘ â˘â˘ Regulus ⢠⢠Portugal â˘â˘ â˘â˘ â˘â˘ Ore . . Spain â˘â˘ â˘â˘ Sulphide ⢠⢠Sweden â˘â˘ â˘â˘ Ore . . â˘â˘ .. â˘...â˘â˘ Roumania ⢠⢠â˘â˘ Regulus Oxide and sulphide ⢠spain Regulus â˘â˘ â˘â˘ Sulphide ⢠⢠â˘â˘ s weden Ore . . â˘â˘ |  | | Journal (article/letter/editorial) | | orthogneisses from Sierra Nevada (Betic Cordillera, Spain) M. D. RUIZ-CRUZ1,* AND C. SANZ DE GALDEANO2 1 ...Ciencias, Universidad de MĂĄlaga, 29071 MĂĄlaga, Spain Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad...de Granada. Facultad de Ciencias, 18071 Granada, Spain [Received 15 June 2015; Accepted 22 December 2015;...inheritance-poor) from Sierra Nevada (Betic Cordillera, Spain) was investigated by integrating UâPb geochronology...western Sierra Nevada (Betic Cordillera, southern Spain), we have *E-mail: mdruiz@uma.es https://doi.org/10 |  | Afiri, Abdelkhaleq, Essaifi, Abderrahim, Charroud, Ali, Aqnouy, Mourad, Abdelrahman, Kamal, Alali, Amar, Abioui, Mohamed (2023) Tectonometamorphic Evolution of the Migmatitic Paragneisses of the Filali Unit (Internal Rif, Morocco) Minerals, 13 (4) 484 doi:10.3390/min13040484 | Journal (article/letter/editorial) | | largest of which is the Ronda massif in southern Spain and Beni Bousera in northern Morocco [19,20]. The...striking similarities with the Betics range in Spain (Figure 1b). The Internal domains (Alboran domain)...The occurrence of graphite pseudomorphs after diamond, observed in garnet pyroxenites, indicates an ultrahigh-pressure...exhumation of the Bousera peridotite from thethe diamond while in Oligocene; retreat of Beni the subduction...Montigny, R. How does the Alpine belt end between Spain and Morocco? Bull. Soc. GĂŠol. Fr. 2002, 173, 3â15 |
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