 | | Journal (article/letter/editorial) | | rift model for the sedimentary diamond deposits of Brazil Received: 13 January 1997 / Accepted: 22 July...kimberlites have been discovered in the past 20 years in Brazil, the Brazilian diamond production has been derived...of the recent alluvial deposits of Brazil. In this sense, Brazil shows a sharp contrast with other large-scale...directly or because they feed the alluvials. But Brazil diers from these countries regarding the age of...Proterozoic, in Brazil they spread from the Lower/Middle Proterozoic to the Cretaceous. Brazil is thus a very |  | Karfunkel, J., Chaves, M. L. S. C., Svisero, D. P., Meyer, H. O. A. (1994) Diamonds from Minas Gerais, Brazil: An Update on Sources, Origin, and Production. International Geology Review, 36 (11) 1019-1032 doi:10.1080/00206819409465502 | Journal (article/letter/editorial) | | tandfonline.com/loi/tigr20 Diamonds from Minas Gerais, Brazil: An Update on Sources, Origin, and Production...Geology , Federal University of Minas Gerais , Belo Horizonte, Brazil b Department of Geology , University...University of Sao Paulo , Sao Paulo, Brazil c Department of Earth and Atmospheric Sciences , Purdue University...Svisero & H. O. A. Meyer (1994) Diamonds from Minas Gerais, Brazil: An Update on Sources, Origin, and Production...Inc. All rights reserved. Diamonds from Minas Gerais, Brazil: An Update on Sources, Origin, and Production |  | Sano, Yuji, Yokochi, Reika, Terada, Kentaro, Chaves, Mario L., Ozima, Minoru (2002) Ion microprobe Pb–Pb dating of carbonado, polycrystalline diamond. Precambrian Research, 113 (1) 155-168 doi:10.1016/s0301-9268(01)00208-x | Journal (article/letter/editorial) | | Uni6ersidade Federal de Minas Gerais, Cidade Uni6ersitaria, Belo Horizonte 31270 -901, Brazil d Department of...from a Proterozoic conglomerate in diamond-bearing deposit of Minas Gerais in Brazil together with U–Pb...seventy zircon grains derived from the same conglomerate show three major U – Pb concordant ages of 2151...formation age of 1750–1700 Ma in the Proterozoic conglomerate estimated by other workers. The 3.6 Ga zircon...Wyse, 1969). They are primarily found in Bahia, Brazil and in the Ubangui region of the Central African |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (issue) | | Warren A new find of crystallized rose quartz in Minas G e ra is ........................................B-2120 Schoten COVER: ELBAITE on quartz from Minas Gerais, Brazil. The crystal is 8.5 mm in width. Photo by...forms the hanging wall of the ore. Outcrops of conglomerate and The Mineralogical Record, November-December...experiences in Brazil. Caplan was the first to bring museumquality mineral specimens out o f Brazil, specimens...rhodocrosite. MR: W hat made you decide to go to Brazil. Were you looking for greener pastures? CAPLAN: |  | | Journal (issue) | | Gelaude Senaite from the Fazenda Guariba, Minas Gerais, Brazil...........................................1986 Semite from the Fazenda Guariba, Minas Gerais, Brazil J. P. Cassedanne Instituto de Geociencias...Universitaria Ilha do Fundao, 29.910 Rio de Janeiro, Brazil INTRODUCTION Senaite, Pb(Ti,Fe,Mn)220 38, has...diamond-bearing gravels from the Diamantina area, Minas Gerais, Brazil. The material was first reported by Damour...had been collected from waterworn gravels near Datas. It was subsequently reported (always from stream |  | | Journal (issue) | | 0026-4628 'Continued on p. 415 Articles Diamonds in Brazil .................................................Fundao 21.910 Rio de Janeiro, Brazil Since their discovery in Minas Gerais, near the town of Diamantina...mining, fables and dreams. By the end of the 1700’s Brazil had become the world’s leading producer of diamonds...century. fficially the discovery of diamonds in Brazil is dated at 1727. Gold prospectors had found occasional...false idea that Brazil is a producer.” The sheer volume of diamonds coming from Brazil soon overwhelmed |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...principally in the states of Minas Gerais and Mato Grosso, are presented. W hile Brazil is widely known for...Tijuco (later named Diamantina) in the state of Minas Gerais (Calógeras, 1904; Leonardos, 1959; Barbosa,...and Bartorelli, 2010). For the next 150 years, Minas Gerais was the world’s major supplier of gem diamonds |  | | Report (issue) | | Janeiro______________________ Sao Paulo__________________________ Minas Gerais_______________________ Espirito Santo______________________...Monazite localities-Continued South America-Continued Brazil-Continued Beach placers _________________________...and Idaho. Most of the world output has come from Brazil, India, and the Republic of South Africa, but 12...beaches and elevated bars along the southern coast of Brazil were the world's main source of commercial monazite...international importance. Stream placers in the interior of Brazil are virtually unexplored; they may constitute an |  | Ma, Wei-Dong, Fan, Hong-Rui, Liu, Xuan, Pirajno, Franco, Hu, Fang-Fang, Yang, Kui-Feng, Yang, Yue-Heng, Xu, Wen-Gang, Jiang, Peng (2017) Geochronological framework of the Xiadian gold deposit in the Jiaodong province, China: Implications for the timing of gold mineralization. Ore Geology Reviews, 86. 196-211 doi:10.1016/j.oregeorev.2017.02.016 | Journal (article/letter/editorial) | | middle Early Cretaceous Laiyang Group (sandy conglomerate and carbon-rich shale), late Early Cretaceous...Ma), and Late Cretaceous Wangshi Group (sandy conglomerate and siltstone) (e.g., Liu et al., 2009; Tang...magmatic event datas are from Wu et al., 2013, 2014; Yang et al., 2008. Ar metamorphic event datas are from...magmatic event datas are from Chen et al., 2003; Yang et al., 2007, J3 magmatic event datas are from e.g |  | | Journal (article/letter/editorial) | | LIT LIT CGLP CGLH CONGLOMERATE POLYMICTIC CONGLOMERATE MONOMICTIC CONGLOMERATE SST SANDSTONE QAR QUA...80 CONTINUE PRINTm, ' ERROR STOP ON OPEN ''DATAS'': IOS = ',lOS C 7000 FORMAT( A ) END ...CONTINUE REWIND 2 FILE='DATAS', STATUS='OLD',ERR=80,IOSTAT=IOS) ERROR ''DATAS'': ON O P E N ... . |  | | Journal (issue) | | Namibia, as well as Madagascar), South America (Brazil and Colombia), central and southern Asia (Sri Lanka...Pakistan; and pink to red tourmalines from Nigeria and Brazil. Diamond was mined in northern Canada for the first...mining also continued at traditional sources in Brazil and Africa. Large quantities of Brazilian emeralds...the early ’90s, particularly from Goiás and Minas Gerais (primarily the Nova Era area). By the middle...decline from Minas Gerais due to decreased reserves and reduced demand. Emerald production in Brazil has since |  | | Report (chapter) | | within the quartzites and deformed pebbles in conglomerate layers provides us with a means of estimating...of quartzites and conglomerate pebbles give oblate finite-strain ellipsoids. The datas suggest a shape...Kontaye– Gabou subdomain Sample x y z k Ol: conglomerate BK: quartzites D17: quartzites SD5: quartzites |  | Bazhenov, Mikhail L., Levashova, Natalia M., Meert, Joseph G., Golovanova, Inessa V., Danukalov, Konstantin N., Fedorova, Natalia M. (2016) Late Ediacaran magnetostratigraphy of Baltica: Evidence for Magnetic Field Hyperactivity?. Earth and Planetary Science Letters, 435. 124-135 doi:10.1016/j.epsl.2015.12.015 | Journal (article/letter/editorial) | | Series. The only conglomerate in the Series is in the Kuk-Karauk Fm.; this conglomerate member is up to...recognizable and often well exposed Kuk-Karauk conglomerate. This identification, however, becomes contestable...of the Bashkir Uplift, where the Kuk-Karauk conglomerate is absent. In spite of this difficulty, paleomagnetic...Ma (Levashova et al., 2013). The Kuk-Karauk conglomerate is absent in UK area and thus it is unclear...is out of scope of this paper. The Kuk-Karauk conglomerate is present in the South Urals, and the recognition |  | | Book | | potential deposits of SiO2 raw materials in Argentina, Brazil, Germany and Norway. The third part of the book...collaboration between scientists from Australia, Brazil, Canada, Germany, Norway, Switzerland and the USA...Color-Enhancing of Gemological Crystalline Quartz in Brazil . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . 6.3.3 Quartz Color-Enhancing in Brazil. . . . . . . . . . . . . . . . . . . . . . 139...50740-530, Brazil Mario L. S. C. Chaves Departamento de Geologia, IGC, Universidade Federal de Minas Gerais |  | | Thesis/Dissertation | | diabase Intrusive contact Et-Then series Conglomerate, sandstone, quartzite Intrusive contact Athabaska...Athabaska series Basalt flows, conglomerate, arkose, Sandstone, shale Unconformity Granite, diorite...norite, peridotite Intrusive Great Slave group conglomerate, arkcse sendstone, quartzite, shale, slate,...quartzsyenite, pegmatite ‘Intrusive Wilson Island croup Conglomerate, arkose, quartzite, phyllite, dolomite, iron...group Limestone, dolomite, quartzite, argillite, conglomerate, mica schist, gneiss, volcanic glows and fragmental |  | | Book (edition) | | International Symposium on Carbonatites in Pocos de Caldas, Brazil for which this writer was keynote speaker. The... Pakistan, Quebec, Finland, Guyana, Venezuela, Brazil, Paraguay, Angola and South-West Africa, i.a. Carbonatites...Quebec and Araxa, Brazil) and important sources of P, Ti, Cu and CaCO; (Jacupiranga, Brazil). In addition...Carbonatites of the World United States Canada Brazil Greenland, Europe, and the U.S.S.R. Africa India...Algoma-Sudbury districts of Ontario (Parsons, 1961). For Brazil few detailed reports are available, but summaries |  | | Journal (article/letter/editorial) | | sequence, which consists from bottom to top of conglomerate, sandstone, siltstone, mudstone, mud-slate,...comparison of the Kongling metamorphic complex datas from Gao et al. (1999) and Zhang et al. (2008)....comparison of the Kongling metamorphic complex datas from Gao et al. (1999) and Zhang et al. (2008). |  | Wu, Dongqian, Sun, Fengyue, Pan, Zhongcui, Yu, Lu, Li, Liang, Gao, Hongchang, Tian, Nan, Xu, Chenghan (2021) Neoproterozoic magmatic and metamorphic imprints in the East Kunlun Orogenic Belt, North Tibetan Plateau, NW China: Implications for the assembly and initial breakup of the Rodinia supercontinent. Precambrian Research, 354. 106076pp. doi:10.1016/j.precamres.2020.106076 | Journal (article/letter/editorial) | | 840 ± 2 59 Hatu N35 54 E97 24 Polymictic Conglomerate 947 60 Qushi’ang —— Gneissic monzonite...which deserve re-evaluation. Some unrecorded GPS datas are recalculated on the basis of labels in figure...J., Hu, N., 2016a. Metamorphosed Polymictic Conglomerate Layer Zircon U-Pb Age and Its Geological Significance |  | | Report (issue) | | ————————————————— Lenticular conglomerate and sand-bearing conglomerate———— Limestone and calcareous...siltstone, middle unit———————————————— 7. Lenticular conglomerate, upper unit————————————————— 8. Diagram of major...—— 12. Sandstone and conglomerate, middle unit——————————————— 13. Conglomerate and sandstone, middle...siltstone, middle unit—————————————————— 15. Conglomerate and sandstone, middle unit——————————————— 16... middle sedimentary unit——————————————— 19. Conglomerate and sandstone, proximal facies, upper unit—— |  | Wang, Shuo, Sun, Fengyue, Wang, Guan, Liu, Kai, Li, Liang, Guo, Huali (2019) Phanerozoic magmatic evolution and metallogenesis in the Eastern Jilin and Heilongjiang Provinces, China. International Geology Review, 61 (18) 2227-2248 doi:10.1080/00206814.2019.1584772 | Journal (article/letter/editorial) | | containing marble Foliated tuff, tuffaceous conglomerate, Weak-none medium-acidic lava, sandstone, metamorphic...Shuangshan Hekoulinchang Yangjingou Cuihongshan Most datas were tested by our team beside the marked Wulaga |  | | Book | | Scott Barlow, 1876. (1244.) —— North shore of Minas Basin, Cumberland county, N.S.—Presented “= Two...epidote : garnet ; heliotrope: jasper: jasper conglomerate : labradorite : lithographic stone: microline:...Gold-bearing rocks (other than and Auriferous conglomerate—Gay’s (390,) quartz), also auriferous arsenopyrite...—Cambrian, C. (208.) in limestone and chert conglomerate.—Acton mine, — III. of Acton, Bagot county...Carboniferous, G. (3677.) with green carbonate, in conglomerate.—Colonial copper mine, Dorchester, Westmoreland |  | | Journal (article/letter/editorial) | | chemically and mineralogically. Oligoclase from Minas Gerais, Brazil and bytownite from Chihuahua, Mexico have...solutions (I=0,025M and I=0,50M). A thermodynamic datas of complex formation were evaluted without helpful...helpful computer code, however the several datas in the literature contributed for this evalutation, in special...of zircon megacrysts from the Juina kimberlites, Brazil E.A. BELOUSOVA1, F.V. KAMINSKY2 1 AND W.L. GRIFFIN...State is one of major diamond-producing areas in Brazil [1]. The recovered zircons were analysed sequentially |  | | Report (issue) | DESCRIPTION GEOLOGIC NAME: DIGHTON CONGLOMERATE ROCK TYPE: CONGLOMERATE GEOLOGIC NAME COOE: DGTN LEXICON...PETROGRAPHIC CODE: D430 DESCRIPTION: DIGHTON CONGLOMERATE CONTAINING DETRITAL MUSCOVITE POTASSIUM.ARGON...GEOLOGIC NAME: DIGHTON CONGLOMERAT-E ROCK TYPE: CONGLOMERATE GEOLOGIC NAME CODE: DGTN LEXICON AGE: 320...PETROGRAPHIC CODE: D430 DESCRIPTION: DIGHTON CONGLOMERATE CONTAINING DETRITAL MUSCOVITE POTASSIUM-ARGON...165D ROCK/MINERAL CODEa AAO WHOLE-ROCK ANALYTICAL DATAs RB (PPM)................. 227.3 SR (PPM)....... |  | | Book | | underlying the SW Sao Francisco craton margin, Brazil: clues to the origin of EMI-type enriched mantle...and associated rocks from the Alto Paranaiba, SE Brazil..........101 Kimberlite magmatism of the Ukraine...with ultramafic rocks in the Catalao-I Complex, Brazil: possible implications for mantle metasomatism...province, Brazil. .320 Geology and palinology of the Sant$ Clara kimberlite maar.Coromandel, Brazil. .323...Permo-Carboniferous glacial deposits in the Parana Basin, Brazil.436 Structure and peculiarities of formation the |
|
