 | | Journal (article/letter/editorial) | | DECEMBER. 1927 No. 12 ALTERNATING DEPOSITION OF PYRITE, MARCASITE AND POSSIBLY MELNIKOVITE W. A. Tann...Missouri.. INTRODUCTION Numerous small deposits of pyrite or marcasite or both occur throughout central Missouri...more than twenty years ago when a small amount of pyrite was mined and shipped. The Bonneterre dolomite...outcrops 400500 yards to the east. Both marcasite and pyrite occur in the deposit, the former predominating...tendency to develop a pseudo-pyramidalform. The pyrite consists of similar radiating and stalactitic aggregates |  | Meggiolaro, V., Niccolini, G., Miniussi, G., Stefanelli, N., Trivellin, E., Llinas, R., Ramirez, I., Scudeler, L. Baccelle, Omenetto, P., Primon, S., Visond, D., Abbrussese, C., Fornari, P., Massidda, R., Piga, L., Ubaldini, S., Ball, S., Monhemius, A. J. (2000) Multidisciplinary approach to metallogenic models and types of primary gold concentration in the Cretaceous arc terranes of the Dominican Republic. Applied Earth Science, 109 (2) 95-104 doi:10.1179/aes.2000.109.2.95 | Journal (article/letter/editorial) | | epithermal ores in the northwest Dominican Republic and Haiti form the second group; Cu–Mo anomalies in oxidation...overview Hispaniola (the Dominican Republic and Haiti) consists of an agglomeration of early Cretaceous...mineralization. In the Tireo terrane of northern Haiti and northwestern Dominican Republic dacitic flows...silica–barite– argillic alteration zones carrying low-grade pyrite ores with traces of Au and Ag (Loma Larga), which...the system led to deposition of late collomorphic pyrite and vein-hosted barite from low-salinity fluids |  | | Journal (article/letter/editorial) | | Contact-Localized Ore Formation at the Mem6 Mine, Haiti STEPHEN E. KESLER Abstract The Mem6 copper mine...formation and included deposition of hematite,magnetite,pyrite, molybdenite,chalcopyrite,bornite,chalcocite,and...in the centralTerre-Neuve Mountainsof northern Haiti (Fig. 1), is one of the Regional Geology largesthypogenemetal...the garnetindicate Fro. 1. Map of the Republicof Haiti showingthe relation a compositionof approximately60:40...faultsstrongly ASSIMILATION ZONE AT MEME MINE, HAITI suggeststhat premineralizationweaknessesfollowed |  | | Journal (article/letter/editorial) | | N.C., and found spodumene, apatite, tourmaline, pyrite and other minerals. . . . Virginia Hardman showed...minerals. Reported magnetite, hematite, chalcopyrite, pyrite, chlorite, etc. The magnetite and associated minerals...went to a road cut at Cranston, Rhode Island where pyrite crystals, as much as 2 inches on a side were found...Mines) A possible $7 billion aluminum industry in Haiti is awaiting international exploration and exploitation...mining development and production, who returned from Haiti recently after conference with President Francois |  | | Report (issue) | | Tektites in Cretaceous-Tertiary boundary rocks on Haiti By G.A. Izett 1 , F.J-M.R. Maurrasse2 , F.E. Lichte3...diagram of three K-T tektites and clay spherules from Haiti and two K-T boundary claystone beds from the Raton... 21 Shock-metamorphosed quartz grains from the Haiti K-T site..........................................diagram of shock-metamorphosed quartz grains at Haiti K-T boundary sites................................ ABSTRACT Cretaceous-Tertiary (K-T) boundary rocks on Haiti contain corroded glassy objects (up to 4.0 mm) in |  | | Journal (article/letter/editorial) | | relic glass from the K/T boundary sediments in Haiti DAVID A. KRING and WILLIAM V. BOYNTON Lunar and...have been found in the K/T boundary sediments of Haiti which also contain grains of shocked quartz. The...Formation (MAURRASSE,1982) on the southern peninsula of Haiti. Although altered submillimeter (micro-) spherules..., 1987). The altered impact spherules found in Haiti occur in sizes up to 8 mm, although they also coexist...simultaneous deposition of the objects found in Haiti and the objects previously interpreted to be altered |  | | Journal (article/letter/editorial) | | exception for one kind of glass at the K^T boundary in Haiti. Abundant 10^20-nm diameter iron oxides having as...[21]) because of the presence of shocked quartz and pyrite concretions weathered to jarosite, and layer IIIb...showing quartz spherules (QS), quartz clasts (QC) and pyrite concretions (Py) in smectite matrix (Sm). B: BSE...the impact layer (layer IIIa) contains abundant pyrite concretions and spherules enclosed within a smectite...Compositions of glasses from the K^T boundary at Haiti, Danish basaltic ashes, tektites and Stevns Klint |  | TorrĂł, Lisard, Proenza, JoaquĂn, Espaillat, Julio, BelĂ©n-Manzeta, Albert, Román-Alday, MarĂa, Amarante, Alberto, González, Norverto, Espinoza, Jorge, Román-Alpiste, Manuel, Nelson, Carl (2018) The Discovery of the Romero VMS Deposit and Its Bearing on the Metallogenic Evolution of Hispaniola during the Cretaceous. Minerals, 8 (11) 507 doi:10.3390/min8110507 | Journal (article/letter/editorial) | | of fibrous silica and chalcopyrite, sphalerite, pyrite (+electrum ± Au–Ag tellurides). The δ34 S values...island divided between the Dominican Republic and Haiti [1,2]. Arc-related rocks from the Cordillera Central...Republic and its extension in the Massif du Nord in Haiti have been, and continue to be, the most intensively...main commodity with a value of US$1456.7 M [9]. Haiti currently has no metallic mineral exports. Economic...in the Dominican Republic and Massif du Nord in Haiti (Figure 1). 2.2. The Tireo Formation Rocks of the |  | | Journal (article/letter/editorial) | | occurrenceat Fredricktown. It may be added that pyrite is abundant in the granites and granite-porphyries...PUMPELLYITE, AND ITS OCCURRENCE IN THE REPUBLIC OF HAITI, WEST INDIES1 W. S. BuneeNK, U. S. Geolog,ical Suraey...during a geological reconnaissancein the Republic of Haiti, undertaken by the Haitian government in cooperation...the bed of the Limb6 River at Limb6 in northern Haiti; the basalt was not greatly unlike many of the older...; Geology of the Republic of Haiti: Dept. of Pubtic Works, Rep. of Haiti, port-au-prince, 1924. 422 |  | Keller, Gerta, Adatte, Thierry, Berner, Zsolt, Harting, Markus, Baum, Gerald, Prauss, Michael, Tantawy, Abdel, Stueben, Doris (2007) Chicxulub impact predates K–T boundary: New evidence from Brazos, Texas. Earth and Planetary Science Letters, 255 (3) 339-356 doi:10.1016/j.epsl.2006.12.026 | Journal (article/letter/editorial) | | small shells and burrows infilled with framboidal pyrite. The underlying event deposit, commonly interpreted...and Chicxulub impact spherules from NE Mexico and Haiti. The Brazos sections thus provide strong evidence... 2). Some burrows are infilled with framboidal pyrite. Above the burrowed horizon, is a dark grey marly...and burrows, some are infilled with framboidal pyrite indicating a low oxygen environment. Microfossil...diameter burrows infilled with sand or framboidal pyrite are observed in the upper part (Fig. 5-F). Microfossils |  | Nelson, C. E., Stein, H., Dominguez, H., Carrasco, C., Barrie, T., Torro, L., Proenza, J. (2015) Re-Os DATING OF MOLYBDENITE FROM THE PUEBLO VIEJO Au-Ag-Cu AND DOUVRAY Cu-Au DISTRICTS, HISPANIOLA. Economic Geology, 110 (4) 1101-1110 doi:10.2113/econgeo.110.4.1101 | Journal (article/letter/editorial) | | district are consistent with an Re-Os isochron age on pyrite reported by Kirk et al. (2014) and with U-Pb dates...including the Douvray porphyry copper deposit in Haiti. The geologic base map was modified from Escuder-Viruete...such as Douvray, in the Massif du Nord district of Haiti (Fig. 1A) and along the length of the Greater Antilles...isotope ratios for ore-related galena, enargite, and pyrite and the host Los Ranchos Formation. These authors...40Ar/39Ar ages (61.6 ± 0.9 and 67.8 ± 0.8 Ma) from a pyrite-alunite vein at Pueblo Viejo. Kesler et al. (1981) |  | | Journal (article/letter/editorial) | | A GEOLOGICAL RECONNAISSANCE IN HAITI A CONTRIBUTION TO ANTILLEAN GEOLOGY WILLIAM F. JONES MassachusettsInstitute...observations made during several months' work in Haiti during the spring and summer of 1918 while engaged...uchicago.edu/t-and-c). A GEOLOGICALRECONNAISSANCE IN HAITI 729 economic purposes were so widely scattered...the writer was forced to cover a large part of Haiti. Observations made are, therefore, somewhat scattered...future work which the writer expects to undertake. Haiti has received but scant attention from geologists |  | | Journal (article/letter/editorial) | | jarosite, goethite, and other weathering products of pyrite. If compared to jarosite-rich coal-associated background...iron sulfate, representing a weathering product of pyrite (IzETT, 1990). At two of the sites, Starkville...jarosite, goethite, and other weathering products of pyrite. The abundance of jarosite is at least partly explained... representing weathered pyrite or reprecipitated iron from dissolved pyrite. The ferric hydroxides are...ejecta fallout is the 50 cm thick boundary layer in Haiti ( HILDEBRANDand BOYNTON, 1990; SIGURDSSON et al |  | | Journal (volume) | | metamorphism, evolution, Caledonides, Paleozoic, HaIti, Enontekio, Lapland, Finland, Norway. Pekka Sipila...units within the Halti-Ridnitsohkka complex .. HaIti cumulate sequence Dunites Stratiform chrome spinel...interlayers Contact metamorphic aureole Texture ' ' HaIti cumulates Ridnitsohkka gabbro sills Mineral chemistry...Ridnitsohkka gabbro sills '. . . . . Geochemistry of the HaIti cumulates Metamorphism and deformation ,. . . ....cumulate sequence Conditions of crystallization of the Haiti cumulate sequence Intrusive environment of the Halti-Ridnitsohkka |  | | Journal (article/letter/editorial) | | impact glass: Si-rich and Ca-rich in Mexico and Haiti, Si-rich in Denmark, and Ca-rich in New Zealand...inferred to be alteration products of diagenetic pyrite, as other studies concluded [43]. Glass shards...other K^T sites such as Mimbral (Mexico), Beloc (Haiti), and Stevns Klint (Denmark), and melted rocks from...except for samples from Mimbral, Mexico and Beloc, Haiti, which were inferred to be of impact origin on the...from the K^T boundary at Mimbral (Mexico), Beloc (Haiti), Stevns Klint (Denmark), the Flaxbourne River and |  | | Journal (article/letter/editorial) | | layers II-V. Of note, layer III, a black marl with pyrite concretions with a red-rust basal layer, was subdivided...is a black marl containing m i n o r amounts of pyrite. Bulk samples of layers II, IIIa, IIIb, and IV...Presumably, this phase is a weathering product of pyrite. Smeetite was also the predominant clay mineral...altered from tektites at the K / T boundary in Haiti (i.e., sample 90GISX, Table 1) were depleted in...both in bentonites and at the K / T boundary in Haiti (Izett et aL, 1990) and the higher concentrations |  | HECHT, Lutz, WITTMANN, Axel, SCHMITT, Ralf-Thomas, STöFFLER, Dieter (2004) Composition of impact melt particles and the effects of post-impact alteration in suevitic rocks at the Yaxcopoil-1 drill core, Chicxulub crater, Mexico. Meteoritics & Planetary Science, 39 (7) 1169-1186 doi:10.1111/j.1945-5100.2004.tb01135.x | Journal (article/letter/editorial) | | mineral following potassium feldspar that includes pyrite grains (white spots); b) colloform SiO2 and analcime...with small grains of Sr-rich barite (Fig. 5b). Pyrite is rare in the lower part of the suevitic sequence...dikes below the suevitic sequence. Intergrowths of pyrite and Kfeldspar in suevitic dikes suggest that these...average composition of the yellow glass of the Haiti spherules (data from Koeberl and Sigurdson 1992)...parental rock; and 2) the compositional analogy with Haiti glasses. If the clinopyroxene-rich melt particles |  | | Journal (article/letter/editorial) | | sulfuric acid produced by dissociation of the abundant pyrite framboids in the K/T boundary clay. K/T EJECTA...to goethite in Stevns Klint, Denmark, to As-rich pyrite in Zumaya, to potassium feldspar in Caravaca, and...oxidation state of the impact glass found at Beloc, Haiti, and Mimbral, Mexico (Jehanno et al 1992, Oskarsson...spherules with a preserved tektite glass core from Haiti (Izett 1991, Sigurdsson et al 1991) and the goyazite...Chicxulub impact. Beloc (Haiti), Coxquihui (Mexico), and DSDP Sites 536/540 Beloc (Haiti), Coxquihui (Mexico) |  | | Journal (article/letter/editorial) | | with pyrite xls in dark green chlorite have been found at the Little Bob Mine—an 487 old pyrite mine...muscovite and biotite, a few others were found such as pyrite, ilmenite, fluorite, calcite, an undetermined species...Kershaw, Kershaw Co.). The ore carries native gold, pyrite, pyrrhotite and arsenopyrite. Other minerals present...in Vermont and obtained:— Chester (Windsor Co.): Pyrite xls, magnetite xls, steatite, clinochlore, prochlorite...dark smoky quartz mass containing tiny striated pyrite cubes. "The following is from the sign at Fossil |  | | Journal (article/letter/editorial) | | similar to the altered impact glasses from Beloc, Haiti, and eastern Mexico. These blebs contain the remains...of benthic foraminifers. Rare chalcopyrite and pyrite occur in detrital grains. They are sometimes associated...318; i) clast containing chalcopyrite (ccp) and pyrite (Py) replacing anhydrite (Anh); k) enlargement...spherule layers below the K/ T boundary in Mexico and Haiti. However, these sections in 1124 J. Smit et al...the impact glass spherules at the K/T boundary in Haiti and Mimbral, Mexico (Swisher et al. 1992) demonstrated |  | | Journal (article/letter/editorial) | | Cuba, mostly flows (including submarine flows) in Haiti, mostly pyroclastics in the Dominican Republic....what has been assigned to the Lower Cretaceous in Haiti, with varying degrees of qualification (Woodring...Barrettia, which has been found in Cuba, Jamaica, Haiti, Puerto Rico, and northern Guatemala. Deformation...volcanic (Lewis and Straczek, In preparation), in Haiti carbonate (Butterlin, 1953, p. 285). No Paleocene...indicating a southward source. In northwestern Haiti pillow basalts are interbedded with limestone of |  | | Report (issue) | | Steeply plunging massive to stockwork-like bodies of pyrite and chalcopyrite, some of which also have economic...remining reserves are believed to be small. Meme, in Haiti, is a skarn deposit in Cretaceous limestone cut...a number of years. Republic In 1973, Jamaica, Haiti, and the Dominican produced 23 percent of total...^ TV\ >/ WORLD % of WORLD 5 ^ COSTA RICA HAITI DOMINICAN REP. JAMAICA TOTAL / S X \ J* |  | | Journal (article/letter/editorial) | | d a m [XleP] Mineralogy and petrology of the Haiti Cretaceous/Tertiary section J o h n B. L y o n s...1992 ABSTRACT The Cretaceous/Tertiary sections in Haiti consist of a sequence of graded beds of turbidity...sedimentology, mineralogy and petrology of the Haiti sections has provided a record of a sequence of...lie in two sections, one in Cuba and the other in Haiti. The Cuba section is referred to as the Big Boulder...an exfoliation process. The layer of interest in Haiti was first described by Maurrasse [14,15]. It has |  | | Journal (article/letter/editorial) | | greenish epidote (some in xls) and small brassy-yellow pyrite cubes in a matrix of whitish quartz, were found...of amberbrown calcite which he had collected in Haiti. His letter, dated May 1, 1957, reads: ROCKS AND...au Prince, Haiti. I was to go back there again, but was advised to be prepared to leave Haiti due to the...pick up any. Ian McKenzie picked up several xls of pyrite bigger than any I had seen before Iron) this locality—they...was truly sony to tell him that his 'gold' was pyrite. "We have re-oriented our summer trip. I am on |  | | Journal (article/letter/editorial) | | deposits of Jurassic age (Cuba), early Cretaceous age (Haiti) and early Cenozoic age (Jamaica) [6], as well as...environment. Most samples were galena, but some pyrite and sphalerite were also analysed and these samples...massivc sulphide massive sulphide 1 1 Cuba Cuba Haiti Haiti Puerto Rico Jamaica Pinar dcl Rio Pinar del...28 29 * 30 3 2 I 4 G=galena, S=-sphalerite, P=pyrite. * Reanalysis of samples previously reported in...Carson and R.H. Pemberton (Cuba), Charles L. Dahl (Haiti), George L. Riley (Costa Rica), M. Seaward (Honduras |
|
