 | | Journal (article/letter/editorial) | | mackinawite in nickel mineralization at Wadi Qatan, Saudi Arabia NICKELIAN mackinawite is a common alteration...with pentlandite and alabandine and discusses a possible mechanism for its formation. At Wadi Qatan, a...lens of fine-grained, pyrrhotine-pentlandite and pyrite-pentlandite mineralization lies conformably within...assemblages consist of pyrite or pyrrhotine with pentlandite and minor amounts of chalcopyrite, cubanite,...alteration product, has two modes of occurrence: pentlandite ~ nickelian mackinawite + carbonate, and alabandine |  | | Report (issue) | | GEOLOGICAL SURVEY SAUDI ARABIAN PROJECT REPORT 201 MINERAL DEPOSITS IN WESTERN SAUDI ARABIA by Ralph J...Kiilsgaard U. S. Geological Survey Jiddah, Saudi Arabia 1975 CONTENTS Page ABSTRACT................structural trends in Saudi Arabia........... 10 TYPES OF MINERAL DEPOSITS IN WESTERN SAUDI ARABIA...... 11 Precambrian......... 15 Wadi Bidah......................... 16 Mahawiyah-Bahah area............... Wadi Yiba............. Wadi Shwas......................... Ar-Ridaniyah deposit............... Al Masane (Wadi Hizmah) |  | | Journal (article/letter/editorial) | | mackinawite in nickel mineralization at Wadi Qatan, Saudi Arabia NICKELIAN mackinawite is a common alteration...with pentlandite and alabandine and discusses a possible mechanism for its formation. At Wadi Qatan, a...lens of fine-grained, pyrrhotine-pentlandite and pyrite-pentlandite mineralization lies conformably within...assemblages consist of pyrite or pyrrhotine with pentlandite and minor amounts of chalcopyrite, cubanite,...alteration product, has two modes of occurrence: pentlandite ~ nickelian mackinawite + carbonate, and alabandine |  | | Journal (article/letter/editorial) | | Resources, P.O. Box 1488, Jeddah, Kingdom of Saudi Arabia 21431 Can. J. Earth Sci. Downloaded from www...Anomalous Ni concentrations in the Late Proterozoic Saudi Arabian Shield are associated with three principal...polydymite or pyrite + polydymite + vaesite. Pentlandite and pyrrhotite appear locally as blebs within...deposits (Cyprus type) or with a pyrrhotite + pentlandite + chalcopyrite + pyrite assemblage that characterizes...of the nickeliferous gossans of the Jabal Mardah region. These deposits are similar to other Ni-rich massive-sulfide |  | | Journal (article/letter/editorial) | | Hydrothermal nickelian mackinawite from Wadi Qatan, Saudi Arabia, 284 BLAND (D. J.), anal. by, 468 Blende...M37 Crystal optics, theory of, I9 Cubanite, Saudi Arabia, 284 Cummingtonite, Grand Canyon, Arizona, anal...margin off Morocco, 22I Mackinawite, nickelian, Saudi Arabia, anal., 284; nickelian and cuproan, W. Australia...I8 Molybdenite, I.R. spectrum, 227 and MI7; Saudi Arabia, 284 Monazite, Rockall, Inverness-shire, 35...383 Pennine, New Zealand, anal., MI 4 Pentlandite, Saudi Arabia, anal., 284 Penwithite, Cornwall,- neotocite |  | Overstreet, W.C., Kiilsgaard, T.H., Grolier, M.J., Schmidt, D.L., Domenico, J.A., Donato, M.M., Botinelly, Theodore, Harms, T.F. (1985) Contributions to the geochemistry, economic geology, and geochronology of the Yemen Arab Republic. Open-File Report Vol. 1985 (85-755) US Geological Survey doi:10.3133/ofr85755 | Report (issue) | | .................. Pyritic andesine gabbro from Wadi Agnam .............. Slag from iron smelting at............. Comparison with similar rocks in Saudi Arabia ............. Exploration techniques suitable........... Relations at auriferous placers in Saudi Arabia .............. General observations in the Yemen...Ma and 600 Ma ago, southern Najd, Kingdom of Saudi Arabia (Schmidt, Hadley, and Stoeser, 1979, fig. 4)...the Jabal Mokhyat gold placer area, Kingdom of Saudi Arabia (from Schmidt and others, 1982, fig. 5; carbon-14 |  | | Journal (article/letter/editorial) | | assemblage. Nickel released by the alteration of pentlandite is probably consumed by the formation of nickelian...Mineralization and Gossans in the Wadi Wassat-Wadi Qatan Region, Saudi Arabia. Trans. lnsm. Min. Metall. In...been ground but not polished. The cross-hatched region represents the palimpsest, which appears dark in |  | | Journal (article/letter/editorial) | | and M42 Saudi Arabia Wadi Qatan, nickelian mackinawite, molybdenite, cubanite, pentlandite, 284 alabandine |  | | Journal (article/letter/editorial) | | preferential partioning of Fe from silicate into pentlandite. The production of anomalous, reducing conditions...par la serpentinisation de l'olivine dans la pentlandite ainsi que de la cristallisation d'une paragen~se...silicates peuvent apporter des informations. Pentlandite and other (Cu)-Fe-Ni-S minerals have been found...furthermore, the compositional variation of pentlandite has received special attention. A general appraisal...unserpentinized ultramafic rocks (Kullerud et al., 1969). Pentlandite is predominant and coexists with minor pyrrhotite |  | | Journal (article/letter/editorial) | | synthetic Ni-bearing mackinawite grain. The rectangular region marked in the upper left secondary electron micrograph...oxidation of primary nickel sulfide ore minerals [pentlandite, (Fe,Ni)9S8)] in supergene enrichment zones (Watmuff...al. (2006) showed that the transformation of pentlandite to violarite was complete after 3 d at 120 °C...fall along the linear trend shown in Fig. 7. This region could be controlled by intercalation of Ni and...in FeS at different FeS loadings (g/L); the data region in the plot focuses on sorption-dominated systems |  | | Book | | complexes. This can be illustrated by the Pechenga region in the north-western part of the Kola peninsula...sulphide coppernickel deposits of the Pechenga region were subjected to metamorphism together with ore-bearing...ultrabasic and sedimentary rocks. In the Pechenga region the regressive dislocational metamorphism took...different stages of its transformation into a folded region. Such deposits include chromite ores, associated...and associated endogenous deposits vary from region to region. It has been established that Mesozoic and |  | | Report (issue) | | an Highlands and the Coastal Plains __ Central region and Great Plains -------------Kentucky -------...ntal-geologic studies ---------Basin and Range region --------------------Mineral-resource studies -...nologic studies -----------------Pacific coast region -----------------------California ------------...investigations -------------------~ortheastern region ------------------------Connecticut ___________________________...sin and Illinois -----------------Southeastern region ________________________ _ Florida ----------- |  | | Report (issue) | | Coastal plains_---______________________ Central region and Great Plains._____________ Kentucky__ _ __________________...------43 43 Basin and Range region----....-. ._ -45 Pacific coast region ____________________ 48 Alaska...Puerto Rico ________--__----------_67 Midcontinent region._ _____-_--_-_--_-67 Interstate studies.______-_-_-----------68...Arkansas-_________----_--------------72 Rocky Mountain region-__ -----72 Montana.________--__----------------73...Continued Water resources Continued Rocky Mountain region Continued Arizona _ ____________________ Oklahoma- |
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