 | Robles-Cruz, Sandra E., Watangua, Manuel, Isidoro, Leonardo, Melgarejo, Joan C., Galí, Salvador, Olimpio, Antonio (2009) Contrasting compositions and textures of ilmenite in the Catoca kimberlite, Angola, and implications in exploration for diamond. Lithos, 112. 966-975 doi:10.1016/j.lithos.2009.05.040 | Journal (article/letter/editorial) | | compositions and textures of ilmenite in the Catoca kimberlite, Angola, and implications in exploration for diamond... Spain ENDIAMA, Major Kanhangulo, 100, Luanda, Angola Departamento de Geologia, Faculdade de Ciências...Agostinho Neto, Av. 4 de Fevereiro 7, 815, Luanda, Angola a r t i c l e i n f o Article history: Received...c t The Catoca group-I kimberlite, the only currently active diamond-producing mine in Angola, was emplaced...Elsevier B.V. All rights reserved. 1. Introduction Angola has become an important producer of diamond (Janse |  | Robles-Cruz, Sandra, Melgarejo, Joan, Galí, Salvador, Escayola, Monica (2012) Major- and Trace-Element Compositions of Indicator Minerals that Occur as Macro- and Megacrysts, and of Xenoliths, from Kimberlites in Northeastern Angola. Minerals, 2 (4) 318-337 doi:10.3390/min2040318 | Journal (article/letter/editorial) | | of Xenoliths, from Kimberlites in Northeastern Angola Sandra E. Robles-Cruz 1,*, Joan Carles Melgarejo...in the Lucapa area, northeastern Angola: Tchiuzo, Anomaly 116, Catoca, Alto Cuilo-4, Alto Cuilo-63 and...petrogenetic evolution of the kimberlites in northeastern Angola and have important implications for diamond exploration...exploration. Minerals 2012, 2 319 Keywords: Angola; kimberlite; olivine; garnet; clinopyroxene; diamond;...xenoliths; REE; Sm/Nd isotopes 1. Introduction In Angola, more than 700 occurrences of kimberlite are distributed |  | Castillo-Oliver, Montgarri, Melgarejo, Joan Carles, Galí, Salvador, Pervov, Vladimir, Gonçalves, Antonio Olimpio, Griffin, William L., Pearson, Norman J., O'Reilly, Suzanne Y. (2017) Use and misuse of Mg- and Mn-rich ilmenite in diamond exploration: A petrographic and trace element approach. Lithos, 292. 348-363 doi:10.1016/j.lithos.2017.09.021 | Journal (article/letter/editorial) | | Australia CE [c] Sociedade Mineira de Catoca, Catoca, Lunda Sul, Angola AC [d] Departamento de Geologia...Neto de Luanda, Avenida 4 de fevereiro 71, Luanda, Angola. Abstract ACCEPTED MANUSCRIPT Magnesian ilmenite... MA Key words: diamond exploration, ilmenite, Angola, kimberlite, LA-ICP-MS PT E D Corresponding...ilmenite found in the Cat115 and Tchiuzo pipes (NE Angola). Additionally, the relationships between ilmenite...elements as tools for diamond exploration. Although Angola is the fourth largest diamond producer in Africa |  | Robles-Cruz, Sandra E., Escayola, Monica, Jackson, Simon, Galí, Salvador, Pervov, Vladimir, Watangua, Manuel, Gonçalves, Antonio, Melgarejo, Joan Carles (2012) U–Pb SHRIMP geochronology of zircon from the Catoca kimberlite, Angola: Implications for diamond exploration. Chemical Geology, 310. 137-147 doi:10.1016/j.chemgeo.2012.04.001 | Journal (article/letter/editorial) | | SHRIMP geochronology of zircon from the Catoca kimberlite, Angola: Implications for diamond exploration...0E8, Canada d Sociedade Mineira de Catoca, Catoca, Lunda Sul, Angola e Departamento de Geologia, Universidade...Agostinho Neto, Av. 4 de Fevereiro 7, 815 Luanda, Angola b c a r t i c l e i n f o Article history: Received...U–Pb dating SHRIMP Geochronology Zircon Diamond Catoca kimberlite a b s t r a c t We present the first...zircon from the diamondiferous Catoca kimberlite in northeastern Angola, the fourth largest kimberlite |  | Pervov, V. A., Somov, S. V., Korshunov, A. V., Dulapchii, E. V., Félix, J. T. (2011) The Catoca kimberlite pipe, Republic of Angola: A paleovolcanological model. Geology of Ore Deposits, 53 (4) 295-308 doi:10.1134/s1075701511040052 | Journal (article/letter/editorial) | | 53, No. 4, pp. 330–345. The Catoca Kimberlite Pipe, Republic of Angola: A Paleovolcanological Model...de Catoca, Republica de Angola, Lunda Sul, Catoca Received January 18, 2011 Abstract—The Catoca kimberlite...the world’s largest primary diamond deposits. The Catoca volcanic edifice is only slightly eroded. Kimberlitic...deposit and a paleovolcanological model of the Catoca pipe formed during a full cycle beginning with...10.1134/S1075701511040052 1 INTRODUCTION The Catoca kimberlite pipe is one of the world’s largest primary |  | Castillo-Oliver, Montgarri, Galí, Salvador, Melgarejo, Joan Carles, Griffin, William L., Belousova, Elena, Pearson, Norman J., Watangua, Manuel, O'Reilly, Suzanne Y. (2016) Trace-element geochemistry and U–Pb dating of perovskite in kimberlites of the Lunda Norte province (NE Angola): Petrogenetic and tectonic implications. Chemical Geology, 426. 118-134 doi:10.1016/j.chemgeo.2015.12.014 | Journal (article/letter/editorial) | | of perovskite in kimberlites of the Lunda Norte province (NE Angola): Petrogenetic and tectonic implications...of perovskite in kimberlites of the Lunda Norte province (NE Angola): Petrogenetic and tectonic implications...of perovskite in kimberlites of the Lunda Norte province (NE Angola): petrogenetic and tectonic implications...Australia D [c] Sociedade Mineira de Catoca, Catoca, Lunda Sul, Angola CE P Abstract TE Corresponding...an approach, no similar study had been done in Angola, the fourth largest diamond producer in Africa |  | Amores-Casals, , Melgarejo, , Bambi, , Gonçalves, , Morais, , Manuel, , Neto, , Costanzo, , Molist, (2019) Lamprophyre-Carbonatite Magma Mingling and Subsolidus Processes as Key Controls on Critical Element Concentration in Carbonatites—The Bonga Complex (Angola) Minerals, 9 (10) 601 doi:10.3390/min9100601 | Journal (article/letter/editorial) | | Concentration in Carbonatites—The Bonga Complex (Angola) Sandra Amores-Casals 1,2, *, Joan-Carles Melgarejo...Universidade Agostinho Neto, Luanda, Caixa Postal 815, Angola; aurorabambi@hotmail.com (A.B.); tonygoncalves72@hotmail...is one of the largest carbonatitic outcrops in Angola and worldwide [75], with well-known resources in...carbonatite, located SE of Quilengues, Huila Province, Angola (Figure 1), is a carbonatite-alkaline complex...graben, a megastructure cutting Congo, Kasai and Angola Cratons and reactivated during the opening of the |  | | Journal (article/letter/editorial) | | of Saint Petersburg, Russia c Catoca Geological-Mining Community, Angola Ac ce p te d M an us cr...age of upper mantle eclogite xenoliths from the Catoca and Cat-115 (Kasai Craton) pipes are presented...ratios. an The Nb/Ta and Nb/La ratios in the Catoca eclogites range from chondritic to superchondritic...and forming inclusions in diamonds. Because the Catoca kimberlite pipe is one of the richest diamond-bearing...on eclogite xenoliths from the Catoca and CAT-115 (Kasai Craton, Angola) kimberlite pipes, which are common |  | Campeny, Marc, Kamenetsky, Vadim S., Melgarejo, Joan C., Mangas, José, Manuel, José, Alfonso, Pura, Kamenetsky, Maya B., Bambi, Aurora C.J.M., Gonçalves, Antonio O. (2015) Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on the parental melt. Lithos, 232. 1-11 doi:10.1016/j.lithos.2015.06.016 | Journal (article/letter/editorial) | | Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on...Antonio O., Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on...MANUSCRIPT Carbonatitic lavas in Catanda (Kwanza Sul, Angola): mineralogical and geochemical constraints on...Geologia, Universidade Agostinho Neto, Luanda, Angola. Pura Alfonso, Dept. Enginyeria Minera i Recursos...Luanda, Angola. Antonio O. Gonçalves, Depto. Geologia, Universidade Agostinho Neto, Luanda, Angola. Abstract |  | | Journal (article/letter/editorial) | | Monte Verde Carbonatite–Alkaline–Agpaitic Complex (Angola) Sandra Amores-Casals 1,2, *, Antonio Olimpio Gonçalves...Universidade Agostinho Neto, Luanda, Caixa Postal 815, Angola; tonygoncalves72@hotmail.com Institut de Ciències...agpaitic minerals; eudialyte; rinkite; loparite; Angola 1. Introduction Undersaturated alkaline rocks...Huambo and Kwanza Sul provinces, is one of the least studied carbonatite complexes in Angola. As a few studies...between Kwanza Sul, Benguela, and Huambo provinces, 500 km from the capital of Angola, Luanda (Figure |  | | Journal (issue) | | diamonds of cube and cuberelated shape from the Jwaneng mine,” Journal of Crystal Growth, Vol. 94, 1989, pp....has been more recently reviewed in an article of mine (B. Rondeau et al., “Diamants cubiques et presque...1930s and the impact of World War II. The Premier mine closed in 1932, and the Kimberley mines were closed...decades. There was a jump in 1968 when the Finsch mine came into full operation, after which production...resumed and gained momentum in 1992 when the Venetia mine came on stream. Production has climbed steadily |  | Klöcking, M., Hoggard, M.J., Rodríguez Tribaldos, V., Richards, F.D., Guimarães, A.R., Maclennan, J., White, N.J. (2020) A tale of two domes: Neogene to recent volcanism and dynamic uplift of northeast Brazil and southwest Africa. Earth and Planetary Science Letters, 547. 116464pp. doi:10.1016/j.epsl.2020.116464 | Journal (article/letter/editorial) | | contribution from metasomatised lithospheric mantle. In Angola, melting of metasomatised lithosphere is probably...100 km beneath Angola and could be as thin as 60 km in the Borborema Province. For Angola, thermobarometry...topographic domes in northeast Brazil (BP; Borborema Province) and southwest Africa (AD; Angolan dome). (b)...(Ma); grey lines = geological province boundaries; BP = Borborema Province; F = Fortaleza; FN = Fernando...southwest Africa. 2. Geological setting The Borborema Province of northeast Brazil is a Precambrian domain that |  | | Journal (article/letter/editorial) | | isolated from kimberlites and mantle xenoliths (e.g., apatite, baddeleyite, ilmenite, rutile, titanite), with...Ma); O = Orapa Mine (Botswana) (93 Ma); C = Catoca Mine (Angola) (118 Ma); J = Jwaneng Mine (Botswana) (235...(235 Ma); M = Mir Mine (Russia) (365 Ma); V = Venetia Mine (South Africa) (528 Ma); P= Premier pipe of...of the Cullinan Mine (South Africa) (1.2 Ga). F igure 1 intrusions, or approximately 20% of the ~3...Africa) at 528 Ma; Jwaneng (Botswana) at 235 Ma; Catoca (Angola) at 118 Ma; Orapa (Botswana) at 93 Ma; and |  | | Journal (article/letter/editorial) | | minerals, perovskite, phlogopite, serpentine, apatite, calcite and Ti-rich hydrogarnets Serpentinized...minerals, perovskite, Mg-ilmenite serpentine, apatite and calcite KL-3 (14°33′40^N; 76 °58′30″E) KL-4...serpentine, apatite and calcite Spinel group minerals, perovskite, serpentine, apatite and calcite ...Mn-ilmenite, apatite and calcite Phlogopite, serpentine, spinel group minerals, perovskite, apatite and calcite...the older ilmenite generations from the Catoca pipe (Angola). Those authors also demonstrated that polycrystalline |  | | Journal (article/letter/editorial) | | 93 kimberlite pipes and veins in the Yakutian province (more than 7500 major component analyses), the...Olenekskaya provinces in the Yakutian kimberlite province was GEOCHEMISTRY INTERNATIONAL Vol. 50 No. 12...for the exam ined portion of the diamondiferous province (Table 6). This model for unaltered kimberlites...of the lithos phere in the Yakutian kimberlite province decreases from south to north, the distribution...fields in a seismic map of the diamondiferous province [21]: the data points of the fields swarm at |  | | Journal (article/letter/editorial) | | located within the Arkhangelsk Diamondiferous Province (NorthWestern Russia), and results of the U-Pb...(Schmitz et al. 2003); and the Catoca kimberlite in the Casai craton, Angola (Nikitina et al. 2014). Evaluating...located within the Arkhangelsk Diamondiferous Province (ADP), contains significant varieties of mantle...areas comprise serpentine, calcite, chlorite, apatite, barite, celestine, and baritocelestine (Fig. 2c...Archean cratonic regions Arkhangelsk diamondiferous province (ADP) Archean Belomorian mobile belt Proterozoic |  | | Thesis/Dissertation | | Caracterización del vulcanismo carbonatítico de Catanda (Angola) Marc Campeny Crego ADVERTIMENT. La consulta d’aquesta... vulcanismo carbonatítico de Catanda (Angola) Tesis doctoral presentada por... vulcanismo carbonatítico de Catanda (Angola) Tesis doctoral presentada ... estat possible realitzar-‐lo a Angola gràcies a l’esforç, la dedicació...carbonatite locality reported in Angola. The Catanda area is also |  | Ashchepkov, Igor, Logvinova, Alla, Spetsius, Zdislav, Downes, Hilary, Ntaflos, Theodoros, Ivanov, Alexandr, Zinchenko, Vladimir, Kostrovitsky, Sergey, Ovchinnikov, Yury (2022) Eclogite Varieties and Their Positions in the Cratonic Mantle Lithosphere beneath Siberian Craton and Archean Cratons Worldwide. Minerals, 12 (11) 1353 doi:10.3390/min12111353 | Journal (article/letter/editorial) | | Russia CATOCA Mining Society, Av. Talatona, N/N, Quarter GU-01, Luanda 10257-10398, Angola Correspondence:...part of the Dharwar craton in India [69,83,84], Angola [85–87], and several localities from South Africa...(A) 0 T oC Fe# Ol in equilibrium with Cpx, Gar Catoca cluster 1 2 1 2 Gr Hi-Mg GrA2 3 45 mw/m2...Dharwar craton; Catoca cluster kimberlites. Symbols the same as for Figure 3. (B) Catoca cluster kimberlites...Roberts Victor pipe, Kaapvaal Craton, Africa 5.4. Catoca pipe, Craton, Africa This Congo pipe, Kasai the |  | Starikova, Anastasiya, Prokopyev, Ilya, Doroshkevich, Anna, Ragozin, Alexey, Chervyakovsky, Vasily (2021) Polygenic Nature of Olivines from the Ultramafic Lamprophyres of the Terina Complex (Chadobets Upland, Siberian Platform) Based on Trace Element Composition, Crystalline, and Melt Inclusion Data. Minerals, 11 (4) 408 doi:10.3390/min11040408 | Journal (article/letter/editorial) | | macrocrysts: early phlogopite-diopside-calcite-apatite association, containing Ti-magnetite and ilmenite...plume activity forming the Siberian large igneous province (LIP), and the Chadobets UML-carbonatite complex...alterations and contained K-feldspar-aegirine and apatite-phlogopite fenite zones [34–36]. Figure 1. (a)...alkaline complex within the Siberian large igneous province (LIP) on the Siberian craton [37]. (b) Geological...of clinopyroxene, biotite, dolomite, calcite, apatite, and in some cases, potassium feldspar, as well |  | Xu, Jingyao, Melgarejo, Joan Carles, Castillo-Oliver, Montgarri, Arqués, Laia, Santamaria, Joan (2018) Ilmenite generations in kimberlite from Banankoro, Guinea Conakry. Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry, 195 (3) 191-204 doi:10.1127/njma/2018/0096 | Journal (article/letter/editorial) | | and minor amounts (< 1 modal %) of perovskite, apatite and ilmenite. In detail, the sequence of crystallisation...Hutchison & Heaman 2008), and in the Lundas provinces (Angola; CastilloOliver et al. 2016). Type 1– 2 ilmenite...Megacrysts from the Grib kimberlite pipe (Arkhangelsk Province, Russia). – Lithos 77: 511– 523. Kostrovitsky...various diamondiferous fields of the Yakutian province. – Dokl. Earth Sci. 406: 19 – 23. Le Maitre, R...compositions and textures of ilmenite in the Catoca kimberlite, Angola, and implications in exploration for diamond |  | | Journal (article/letter/editorial) | | diplogenetic stratified copper deposit, Anhui Province—Xu Zhaowen, Lu Xiancai, Ling Hongfei, Lu Jianjun...Waterberg deposit: Why South Africa’s first platinum mine failed—Iain McDonald and Marian Tredoux 243 252...Xiazhuang uranium orefield, northern Guangdong Province—Ling Hongfei, Shen Weizhou, Deng Ping, Jiang Shaoyong...Rancourt and Mei-Zhen Dang Coupled dichotomies of apatite and fluid composition during contact metamorphism...composition of the Berkeley pit lake and surrounding mine waters, Butte, Montana— Damon A. Pellicori, Christopher |  | Kostrovitsky, S.I., Yakovlev, D.A., Soltys, A., Ivanov, A.S., Matsyuk, S.S., Robles-Cruz, S.E. (2020) A genetic relationship between magnesian ilmenite and kimberlites of the Yakutian diamond fields. Ore Geology Reviews, 120. 103419 doi:10.1016/j.oregeorev.2020.103419 | Journal (article/letter/editorial) | | diamondiferous kimberlite fields in the Yakutian province. This combined data set includes 10,874 analyses...diamondiferous kimberlite fields in the Yakutian province. The pipes locations with each field, are reported...in the diamond fields of the Yakutian kimberlite province (YKP). Mineralogical assessment of these intrusions...different diamondiferous fields of the Yakutian province (in parentheses - the number of analyses). TiO2...diamond-bearing kimberlite fields of the Yakutian province: A Mirninsky; B - Daldynsky; C - Alakit-Marhinsky; |  | | Journal (issue) | | moving products from mine to consumer. The main cover image was taken at the AnahÌ mine in Bolivia, a major...instrumentation such as LA-ICPMS—once primarily the province of academia—became a fixture in many gemological...of the company (Even-Zohar, 2007). Because of the mine closures, De Beers’s market share by volume fell...pink diamonds (0.51 and 0.55 ct) from the Argyle mine in Australia were part of the 2007 Argyle pink diamonds...interest in Angola’s Catoca mine in the early 1990s. Commissioned in 1997, Catoca was producing just over |  | Ashchepkov, I. V., Alymova, N. V., Logvinova, A. M., Vladykin, N. V., Kuligin, S. S., Mityukhin, S. I., Downes, H., Stegnitsky, Yu. B., Prokopiev, S. A., Salikhov, R. F., Palessky, V. S., Khmel'nikova, O. S. (2014) Picroilmenites in Yakutian kimberlites: variations and genetic models. Solid Earth, 5 (2). 915-938 doi:10.5194/se-5-915-2014 | Journal (article/letter/editorial) | | may include intergranular rutile, perovskite or apatite, similar to those in the Kelsey Lake pipes (USA)...kimberlites from Anabar and Alakit, contain rutile, apatite and perovskite (Babushkina and Marshintsev, 1997;...compositions from different regions Yakutian kimberlite province (Daldyn, Alakit and Malo-Botuobinsky fields)....from different regions within Yakutian kimberlite province (Nakyn, Upper Muna and Anabar fields). 1. Ilmenites...the Mg-rich and Fe-rich varieties, for example in Angola (Robles-Cruz et al., 2009; Ashchepkov et al., 2012) |  | | Journal (issue) | | amblygonite monazite anglesite triphylite coelestite apatite selenite anhydrite 4000 3200 2400 1800 1400...Afghan beryls from pegmatites at Ghursalak in Konar Province (aquamarine, morganite) and from the Panjshir...the Nilaw, Mawi and Kurghal regions of Laghman Province from cavities in pegmatite veins (Figure 1). ...Beryl samples from pegmatites of Ghursalak (Konar Province) and Panjshir Valley in NE Afghanistan were provided...of emerald occur in the Panjshir Valley (Kapisa Province). The Nilaw-Kolum Pegmatite Field (35°12' N and |
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