 | | Journal (article/letter/editorial) | | The Geologyand Geochemistryof the Waterfall Gorge Section of the Insizwa Complex with ParticularReferenceto...Jurassic-aged mafic rocksfrom the Waterfall Gorge sectionof the Insizwa layered complex,Transkei, range...mineral phases(olivine, plagioclase,bronzite, and augite) show significant features:in the basalgabbrothe...responsiblefor the compositionalvariationin this unit at Insizwa, however, to accountfor the upward increasein the...the productionof the basalgabbro. Introduction Gorge,the sequenceof intrusiverocksand contact THE Karoo-agedInsizwa |  | | Journal (article/letter/editorial) | | FENNER 409 The geochemical structure of the Insizwa lobe of the Mount Ayliff complex with implications...Geology, Rhodes University, Grahamstown 6140, South Africa e-mail: goonie.marsh@ru.ac.za P. Allen Department...University of Fort Hare, Alice, South Africa N. Fenner Falconbridge Ventures of Africa, PO Box 12708, Hatfield...Hatfield, Pretoria 0028, South Africa © 2003 Geological Society of South Africa ABSTRACT Detailed petrographic...instances) along the southeastern margin of the Insizwa lobe of the Mount Ayliff Complex reveal the existence |  | | Journal (article/letter/editorial) | | APRIL 1949 KARROO DOLERITES OF THE UNION OF SOUTH AFRICA BY FREDERICK WALKER AND ARIE POLDERVAART CONTENTS...Karroo dolerites 685 Outlying areas in Southern Africa 687 Trias-Lias vulcanicity in Gondwanaland 687...System in the Union of South Africa 597 2. Distribution of Karroo System in Africa 600 3. Map and section...Grey sheet, Queenstown 605 5. Map and section of Insizwa sheet, Mount Ayliff 606 6. Map and section of Elephant's...of Mount Arthur (Kokstad) 621 15. Hornfelses of Insizwa (Mount Ayliff) 626 16. Assimilation product at |  | | Journal (article/letter/editorial) | | Glenmacnass, Co. Wicklow, sillimanite, 763 Rosses district, Donegal, beryl, 328 Three Rock Mtn, San@ford...yttrotungstite, raspite, stolzite, 261 Bau mining district, Sarawak, antimonian idoerase, 894 Tapah, Kinta...India Bhopal, levyne, 527 Ghoriajor, Sundargarh District, Orissa, blanfordite, 3z Jothvad, Gujarat, blandfordite...blandfordite, 32 Kacharwali, Nagpur District, Maharashtra, blanfordite, 32 Khetri copper belt, Rajasthan...hornblende, cummingtonite, 89o Mamandur, South Arcot District, Madras, ferroan gahnite, 528 Maruturu Anakapatle |  | | Journal (article/letter/editorial) | | liquid in orthocumulares. The calculation assumes local equilibrium between phases, and that the system...common ferromagnesian phases olivine, clinopyroxene (augite) and orthopyroxene (enstatite through hypersthene)...in Cr wards from the base of the Insizwa Complex in South Africa is attributed by Lightfoot et al. (1984)...exchange reactions with country rocks. Both the Insizwa and La Perouse data may be explained more simply...greatest for the late plagioclase - bronzite - augite cumulates for the reasons outlined above. Cumulates |  | | Journal (article/letter/editorial) | | Adularia, electron-optical study of, I Aegirine-augite, Scotland, anal., 819; manganoan, India, anal....stilpnomelane, 693 AUCOTT(J. W.), see ENGIN (T.), 76 Augite, Canary Isles, hour-glass structure in, interpretation...VANCE (E. R.), 605, manganese ores, 235 Bau mining district, Sarawak, Malaysia, anti721 monian idocrase, 894...FERNANDEZ(L. A.), Phenocrystic olivines from the eastern Azores, 165 Boulangerite, Cornwall, 767 BOUVIER(J...), An antimonian idocrase from the Bau mining district, Sarawak, 894 BRICE (W. R.), see CHANG (L. L. |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Book | | 1. Mafic dyke swarms in the Kaapvaal Craton, South Africa 189 3.4.2. The Mackenzie dyke swarm, Canada...controls of intracontinental alkaline magmatism in Africa 194 3.5.2. The Damaraland alkaline province, Namibia...Namibia 6.3.2. Anorogenic metamorphism in the eastern Pyrenees 6.3.3. Anorogenic metamorphism and intraplate...intraplate magmatism around the Vredefort Dome, South Africa 6.3.4. Metamorphism and fluid generation; metamorphogenic...Bushveld lgneous Complex, South Africa 8.2.3. Molopo Farms Complex, South Africa and Botswana 8.3 Magmatic |  | | Journal (article/letter/editorial) | | determination of in amphiboles, 389 Waterfall Gorge, lnsizwa~ South Africa, insizwaite, niggliite, 794 Weardale...standards for, 614 X-ray powder data: aegirine-augite, manganoan, 34; agrinierite, 783; biphosphammite |  | | Book (edition) | | Meta/lurgical and Mineralogical Society o/ South Africa Journal of Chemical Phy ics Journal cif the...and Proceedings of the Royal Socief) 1 of Ne,v South Wales JPSJ Journal of rhe Physical Society of...Cand CSPG Pennskiye gubemskiye wdomo.sti (Perm district ga=elle) Pl,ilosopl,ical Maga=ine Periodico de...Artrocitc, Ivigtul cryolitc deposit. Ivittuut municipality. southwest Wi tgreenl Greenland. 73. 1492, ZK...2iOH)~. Lric.,3 km south of thc mouth of Akatorc Crcek, castcm Otago, Dunedin, South Island, New Zealand |  | | Book | | Bushveld chromite–platinum group metals (PGMs), South Africa, Sudbury nickel–copper, Canada, and a few new...occurrences/deposits/mines of six continents: Africa, North America, South America, Asia, Oceania (including Australia)...Earth’s element family. The working deposits in South Africa and Russia are by far the largest for the PGM...significant in Canada, United States, Australia, Africa, Brazil, New Caledonia, Philippines, Indonesia...Caribbean. The largest chromite deposits are in South Africa, Zimbabwe, Kazakhstan, Turkey, Finland, and |  | | Journal (article/letter/editorial) | | contaminated by LIL and LRE elements derived from local greywacke-slate turbidites (Peltonen, submitted)...whole-rock chemistry is proposed. Regional and local geology The Fennoscandian (formerly known as Baltic)...north (Nironen, 1989) and probably also to the south. The areal extent of moderate gravity anomaly maxima...VNiB and in particular around the Vammala Mining District, are best depicted as boudins, lenses or pipes...cumulus crystals (olivine, augite, chrome spinel) and postcumulus minerals (augite, enstatite, amphibole, |  | | Report (issue) | | ........................................... 46 South Kalimantan .......................................platinum-group element prospect, Riam Pinang area, South Kalimantan........................................from the Riam Pinang area, Tanah Laut subprovince, South Kalimantan APPENDIX G: Detailed description of rock...paleochannels, South Kalimantan. Figure 15. Photograph of diamonds from near Cempaka, South Kalimantan....flattened gold and PGM particles from near Cempaka, South Kalimantan. Figure 17. Chromitite occurrences in |  | Karykowski, Bartosz T., Maier, Wolfgang D., Groshev, Nikolay Y., Barnes, Sarah-Jane, Pripachkin, Pavel V., McDonald, Iain, Savard, Dany (2018) Critical Controls on the Formation of Contact-Style PGE-Ni-Cu Mineralization: Evidence from the Paleoproterozoic Monchegorsk Complex, Kola Region, Russia. Economic Geology, 113 (4) 911-935 doi:10.5382/econgeo.2018.4576 | Journal (article/letter/editorial) | | to the local addition of water and, potentially, carbon dioxide to the magma, resulting in local small-scale...sulfide liquid accumulation at the base, while the local decrease in magma viscosity facilitated gravitational...intrusions, such as in the Bushveld Complex (South Africa), the Great Dyke (Zimbabwe), and the Stillwater...Monchegorsk Complex. It is located approximately 120 km south of Murmansk on the Kola Peninsula of Russia and...the Nittis intrusion (sample 15NMAS-1). Note the local infiltration of sulfide into the immediate host |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Book (edition) | | Mine; NBH Mine), Broken Hill, Yancowinna Co., New South Wales, Australia; PPL B Anhedral native copper (dark;...Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Eastern-Siberian Region, Russia (sample: Melcher/Oberthür);...grey); Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Sachsen, Germany (sample: Seifert);...Line), Witwatersrand field, Gauteng Province, South Africa; PPL B Intergrowth of electrum (yellowish white)...quartz (dark grey); New Bullfrog Mine, Bullfrog District, Nye Co., Nevada, USA (sample: Witzke); PPL If |  | | Journal (article/letter/editorial) | | and in particular the hybrid twins of allanite, augite, axinite, beryl, chloritoid, clinoenstatite, clinozoisite...as one intermediate composition, when available (augite, low- and high-pigeonite, enstatite-ferrosilite...interpretation is not affected. In the case of augite, two sublattices enter in the hybrid description...two sublattices (see section 3.4.1 and Table 2). Augite, (Ca,Mg,Feþ2,Feþ3,Ti,Al)2(Si,Al)2O6, is a monoclinic...compositions (augite 1: a ¼ 9.707, b ¼ 8.858, c ¼ 5.274 AÌŠ, b ¼ 106.52 , Takeda, 1972; augite 2, a ¼ 9.7504 |  | | Journal (issue) | | a great rarity. However recent discoveric in South Africa mean that g od hand pccimcns arc now readily...adamitecrystal2 mm acrossfrom PuttapaMine, Beltana,South Australia.This image is a combinationof 9 separateslices...per anally may be available through friends or a local ociety. Using the combination technique with a digital...nickeliferous deposits at Waterfall Gorge, Insizwa, Pondoland, Transkei, South Africa. There was insufficient...Canada Sudbury, Canada Ban Phuc, Vietnam Insizwa, South Africa 10.11 10.05 9.80 10.16 9.98 9.89 9.82 9 |  | Seat, Z., Mary Gee, M. A., Grguric, B. A., Beresford, S. W., Grassineau, N. V. (2011) The Nebo-Babel Ni-Cu-PGE Sulfide Deposit (West Musgrave, Australia): Pt. 1. U/Pb Zircon Ages, Whole-Rock and Mineral Chemistry, and O-Sr-Nd Isotope Compositions of the Intrusion, with Constraints on Petrogenesis. Economic Geology, 106 (4) 527-556 doi:10.2113/econgeo.106.4.527 | Journal (article/letter/editorial) | | NORTHERN TERRITORY Amadeus Basin WOOD ROFFE THRUS T SOUTH AUSTRALIA MAN N WESTERN AUSTRALIA FAULT 27°S...metamorphic rocks Wingellina NORTHERN TERRITORY Hills SOUTH AUSTRALIA TO na ve Ca M gh e ng Ra Tollu Mum...10° plunge toward southwest and a 15° dip to the south. In general, deformation is confined to shear zones...texture to VLGN Abbreviations: Ap = apatite, Aug = augite, Bt = biotite, Hbl = hornblende, Ilm = ilmenite...in Canada (Irvine, 1970, 1975), the Insizwa Complex in South Africa (Lightfoot et al., 1984), and the Somerset |  | | Book (volume) | | Aegirine-Aegirine-augite ...... 79 Spodumene ......... 92 Jadeite ......... 99 Augite.109 Pigeonite...Diopside—Hedenbergite Johannsenite Aegirine Spodumene J adeite Augite Pigeonite Omphacite Fassaite (Mg,Fe+2)2Si206 Ca(Mg...of aegirine, jadeite, diopside, hedenbergite and augite were all similar. Single-crystal investigations...nstatite-clinoferrosilite are discussed in the augite section (p. 110). Similar studies for the orthopyroxenes...com¬ binations are: augite with (001) pigeonite lamellae (x and y coincident), augite with (100) hypersthene |  | | Book (volume) | | Pigeonite inverted to orthopyroxene with exsolved augite lamellae / /(00.1) of original monoclinic Ca-poor...orthopyroxene with exsolved augite .lamellae //(001) and a smaller number of exsolved augite lamellae //(100)....Labrador. Crossed polars x60. E. Zoned aegirine-augite, analcite syenite segregation in analcite dolerite...Pigeonite 162 Calcium Pyroxenes Diopside-Hedenbergite Augite Fassaite J ohannsenite 198 294 399 415 Calcium-Sodium...20 Sodium Pyroxenes Jadeite Aegirine, Aegirine-augite Ureyite 461 482 520 Lithium Pyroxenes Spodumene |  | Naldrett, Anthony J., Lightfoot, P. C., Fedorenko, V., Doherty, W., Gorbachev, N. S. (1992) Geology and geochemistry of intrusions and flood basalts of the Noril'sk region, USSR, with implications for the origin of the Ni-Cu ores. Economic Geology, 87 (4) 975-1004 doi:10.2113/gsecongeo.87.4.975 | Journal (article/letter/editorial) | | Academy of Sciences, Cberno•olovka, 14232Moscow District,USSR Abstract Geochemicalstudiesindicatethat...youngersediments)in the post-trap age and are, from north to south, the centerof thisregion,andthe extrusionof the...Ku-Kurgavat, Mi-Moesia, Mu-Mugadzhar, Om-Omolan, SP- South Pamir, TO- Transcaucasian, TM- Taimyr OCEANIC BASINS:...Caucasus, MO- Mongol- Okhotsk, PT- Paleo-Tethys, SA- South Anyui VOLCANICARCS AND BELTS: I-Anui, 2-Chara,...6-Lesser Caucasus,7-North Balkhash, 8-South Mongolian, 9-South Tien Shon, IO-Tom-Kolyvan, I I-Valerianovsky |  | | Book | | University of the Witwatersrand Johannesburg South Africa Olivier Namur University of Hannover Hannover...Vander Auwera 465 12 The Bushveld Complex, South Africa ���������������������������������������������������...Morse 589 14 The IlÃmaussaq Alkaline Complex, South Greenland ��������������������������    Michael...University of the Witwatersrand, Johannesburg, South Africa Georges Ceuleneer CNRS-UMR 5563, GET, OMP, University...Geosciences, University of the Witwatersrand, Wits, South Africa Craig Magee Department of Earth Science and |  | | Report (issue) | | Platinum Symposium in Rustenburg, Republic of South Africa. The abstract volume for this meeting contained...international collection of authors from both western and eastern affiliations. At about this time the price of Pt...mineralization, in countries like the Republic of South Africa, Canada, and Finland. Over the last five or...platinum-group minerals (PGM) beginning with a South African publication (Cabri, 1972) and culminating...of PGE deposits, ranging from the very important South African deposits to less well-developed PGE mineralization |  | | Book | | Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo by Brian Boyle. Courtesy...litharge aug-a, to shine Gk. auge, light ray augite bhel, to thrive, bloom Gk. phyllon, leaf pyrophylilite...Hendrik van Prehn, who brought the mineral from the Cape of Good Hope. This was the first mineral named after...néche, Sadne-et-Loire, France, or annite, after Cape anionic radical. Thus oxides, sulfides, carbonates...Consolidated Mines. Dutoitspan mine, Kimberley, South Africa. Aheylite (Fe2*,Zn) Alg(PO,)4(OH)3®4H,0, tric |
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