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Relevant bibliographies by topics / Facies (Geology)

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Academic literature on the topic 'Facies (Geology)'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2024

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Journal articles on the topic "Facies (Geology)"

1

Bronto, Sutikno. "Fasies gunung api dan aplikasinya." Indonesian Journal on Geoscience 1, no. 2 (June 28, 2006): 59–71. http://dx.doi.org/10.17014/ijog.1.2.59-71.

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http://dx.doi.org/10.17014/ijog.vol1no2.20061Based on the nature and rock association, a composite volcanic cone can be divided into central facies, proximal facies, medial facies and distal facies. Physiographically, those begin from central eruption at the summit, going down to upper slope, lower slope, and foot plain in the surrounding area. Central facies is characterized by the presence of subvolcanic intrusions, lava domes, and hydrothermally altered rocks. Proximal facies consists of alternating lava fl ows and pyroclastic breccias. Medial fasies mainly is composed of pyroclastic breccias, laharic breccias, and conglomerates. Whereas, distal facies is dominated by fi ne-grained epiclastic rocks having sand to clay size. Tuff can be widely distributed from proximal to distal facies due to its fi ne grain and lightness. Methodological approachs for classifi cation of volcanic facies in Tertiary and older rocks are remote sensing and geomorphology, volcanic stratigraphy, physical volcanology, structural geology, and petrology-geochemistry. This volcanic facies division is useful for supporting new discovery on energy and mineral resources, environmental geology, and geologic hazard mitigation.

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Liu, Wei Fu, Shuang Long Liu, and Hong Ying Han. "Depositional Model and Development Significance of Clastic Reservoir." Applied Mechanics and Materials 522-524 (February 2014): 1245–48. http://dx.doi.org/10.4028/www.scientific.net/amm.522-524.1245.

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A general geologic sedimentation model for reservoir is made by carefully analyzing the inberent essence of depositional environmentand for clastic rocks of lake basin. The basic model in the streaming environment is composed of two basic facies units: one is the waterway facie and the other is non-waterway facie. The principal characteristics of developing geology and sedimentology have been outlined. It can be commonly used in developing under-producted reserves and raising recovery ratio in the highly developed oil fields.

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Schenk, C. J. "Facies models." Journal of Sedimentary Research 55, no. 3 (May 1, 1985): 448–0. http://dx.doi.org/10.2110/jsr.55.448.

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Pendrel, John, and Henk Schouten. "Facies — The drivers for modern inversions." Leading Edge 39, no. 2 (February 2020): 102–9. http://dx.doi.org/10.1190/tle39020102.1.

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It is common practice to make facies estimations from the outcomes of seismic inversions and their derivatives. Bayesian analysis methods are a popular approach to this. Facies are important indicators of hydrocarbon deposition and geologic processes. They are critical to geoscientists and engineers. The application of Bayes’ rule maps prior probabilities to posterior probabilities when given new evidence from observations. Per-facies elastic probability density functions (ePDFs) are constructed from elastic-log and rock-physics model crossplots, over which inversion results are superimposed. The ePDFs are templates for Bayesian analysis. In the context of reservoir characterization, the new information comes from seismic inversions. The results are volumes of the probabilities of occurrences of each of the facies at all points in 3D space. The concepts of Bayesian inference have been applied to the task of building low-frequency models for seismic inversions without well-log interpolation. Both a constant structurally compliant elastic trend approach and a facies-driven method, where models are constructed from per-facies trends and initial facies estimates, have been tested. The workflows make use of complete 3D prior information and measure and account for biases and uncertainties in the inversions and prior information. Proper accounting for these types of effects ensures that rock-physics models and inversion data prepared for reservoir property analysis are consistent. The effectiveness of these workflows has been demonstrated by using a Gulf of Mexico data set. We have shown how facies estimates can be effectively used to build reasonable low-frequency models for inversion, which obviate the need for well-log interpolation and provide full 3D variability. The results are more accurate probability-based net-pay estimates that correspond better to geology. We evaluate the workflows by using several measures including precision, confidence, and probabilistic net pay.

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Postma, George. "The geology of fluvial deposits, sedimentary facies, basin analysis and petroleum geology." Sedimentary Geology 110, no. 1-2 (May 1997): 149–50. http://dx.doi.org/10.1016/s0037-0738(96)00081-4.

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Yang, Xiuwei, and Peimin Zhu. "Reservoir Prediction Under Control of Sedimentary Facies." Journal of Computational Acoustics 25, no. 03 (September 2017): 1750022. http://dx.doi.org/10.1142/s0218396x17500229.

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Acoustic impedance (AI) from seismic inversion can indicate rock properties and can be used, when combined with rock physics, to predict reservoir parameters, such as porosity. Solutions to seismic inversion problem are almost nonunique due to the limited bandwidth of seismic data. Additional constraints from well log data and geology are needed to arrive at a reasonable solution. In this paper, sedimentary facies is used to reduce the uncertainty in inversion and rock physics modeling; the results not only agree with seismic data, but also conform to geology. A reservoir prediction method, which incorporates seismic data, well logs, rock physics and sedimentary facies, is proposed. AI was first derived by constrained sparse spike inversion (CSSI) using a sedimentary facies dependent low-frequency model, and then was transformed to reservoir parameters by sequential simulation, statistical rock physics and [Formula: see text]-model. Two numerical experiments using synthetic model and real data indicated that the sedimentary facies information may help to obtain a more reasonable prediction.

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Zhabin, A. G. "CONTRASTING FACIES ORE AGGREGATES." International Geology Review 27, no. 1 (January 1985): 45–60. http://dx.doi.org/10.1080/00206818509466389.

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Chamley, Hervé. "Green marine Clays. Oolitic ironstone facies, verdine facies, glaucony facies and celedonite-bearing rock facies — a comparative study." Marine Geology 91, no. 1-2 (January 1990): 156–57. http://dx.doi.org/10.1016/0025-3227(90)90140-f.

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Anderton, R. "Clastic facies models and facies analysis." Geological Society, London, Special Publications 18, no. 1 (1985): 31–47. http://dx.doi.org/10.1144/gsl.sp.1985.018.01.03.

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Côrtes, Ariane Raissa Pinheiro, and José Alexandre De Jesus Perinotto. "Facies and facies association of Piramboia Formation in the region of Descalvado (SP)." Geologia USP. Série Científica 15, no. 3-4 (December 26, 2015): 23. http://dx.doi.org/10.11606/issn.2316-9095.v15i3-4p23-40.

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A Formação Piramboia é uma unidade litoestratigráfica da Bacia do Paraná que tem sido alvo de diversos estudos em razão de sua grande importância como componente primordial no Sistema Aquífero Guarani e no sistema petrolífero Irati-Piramboia, atuando como excelente rocha-reservatório. Historicamente, essa unidade tem sido alvo de diversas controvérsias quanto à idade, relações de contato com as unidades sotoposta e sobreposta e paleoambiente deposicional. Entretanto, é comumente considerada de idade triássica e produto da deposição em sistemas eólicos úmidos, com abundância de interdunas úmidas e fácies fluviais subordinadas. Neste trabalho, a Formação Piramboia foi caracterizada por meio de técnicas como análise de fácies, associação vertical e lateral de fácies e arquitetura deposicional realizadas a partir de levantamentos nas frentes de lavra da Mineração Jundu, em Descalvado, nordeste do estado de São Paulo. Foram descritas cinco fácies para a Formação Piramboia na região de estudo: St, Sh, Sm, Sr e Gt, geradas por meio de processos sedimentares do tipo carga de fundo, a maioria sob regime de fluxo inferior. Além disso, foram reconhecidas quatro associações de fácies que permitem estabelecer quatro elementos arquitetônicos presentes no canal fluvial principal: Complexo de barras de canal, constituído pelas macroformas de acresção vertical (FM), forma de leito arenosa (SB) e forma de leito do tipo barras conglomeráticas (GB); Depósito de enchentes, constituído pelos lençóis de areia laminados (LS); Depósitos de fluxos hiperconcentrados e depósitos eólicos. Os resultados indicam que a Formação Piramboia na região de estudos é o registro da sedimentação em rios entrelaçados com depósitos de dunas e interdunas subordinados que caracterizam interação fluvio-eólica

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Dissertations / Theses on the topic "Facies (Geology)"

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Gournay, Jonas Paul. "Phylloid algal bioherms and ooid grainstones : characterization of reservoir facies utilizing subsurface data from the Aneth Platform and outcrop data along the San Juan River, Paradox Basin, southeastern Utah /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Kattah, Senira da Silva. "Controls on deposition and resulting stratal architecture of coarse-grained alluvial and near-shore facies associations /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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Elwerfalli, Hamed Omar. "Facies analysis of early Tertiary carbonates of northeast Libya." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242780.

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Lee, Mui-fa Alison. "Sedimentary facies of fluvial-marine transition environments in Hong Kong : Ting Kok and Pak Nai Deltas /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021211.

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Pedley, Antony. "Eocene foreland basin carbonatae facies, the external Sierras, Spanish Pyrenees." Thesis, Royal Holloway, University of London, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261690.

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This thesis explores the controls on carbonate platform formation in foreland basins through a study of the facies, and depositional architecture, of the Middle Eocene Guara Limestone Formation, from the External Sierras, Northern Spain. The Guara Limestone Formation formed in a ramp environment on the Iberian foreland margin of the South Pyrenean Foreland Basin. The facies are foraminifera and algal limestones, with minor shallow marine siliciclastics. A facies model has been erected indicating 19 facies, grouped into 6 facies associations. Using these facies and associations, the evolution of the platform has been studied. A progradational lime-mud and clastic rich lowstand systems tract marks the initiation of deposition, the lowstand systems tract being deposited during a period of low relative sea level rise. This is overlain by an aggradational and retrogradational, carbonate grain rich, transgressive systems tract. This was deposited as the rate of relative sea level rise increased. Parasequences have been redefined herein to allow successions of a similar stratigraphic hierarchy to be encompassed in the same name. The aggradational section of the platform containing both shallowing and deepening upward parasequences. The deepening upwards parasequences were created by base level rise driven by tectonic subsidence and eustatic sea level rise. The aggradational platform margin indicates that inner-ramp production, even with the absence of coral reefs, was able to keep pace with relative sea level rise. Relative sea level rise was sufficiently rapid to preclude the development of peritidal facies and evaporites, despite suitable arid climatic conditions. Platform retrogradation, in the late transgressive systems tract, and eventual drowning, was caused by a further increase in the rate of relative sea level rise. This was created by an increase in the rate of foreland subsidence due to the formation of antiformal stacks in the Pyrenean Axial Zone to the north. Following drowning, a progradational, clastic and lime-mud rich highstand systems tract developed. Initially the rate of relative sea level rise was rapid during the highstand systems tract, this rate probably decreasing as the sequence boundary is approached. The observed increase through time of the rate of tectonic subsidence is typical of foreland basins, and is in contrast to the exponential decay of subsidence seen in passive margins. A number of other controls can be seen to have affected the Guara Limestone Formation ramp. These may affect any carbonate system; though some may be favoured specifically in foreland basin settings. Tidal action formed a series of grainstones shoals at the shelf margin, tidal effects may be favoured in narrow foreland basins due to tidal amplification, and also the limitation of wave and storm effects due to a restricted fetch. The basin was well circulated, with effective exchange between basin and platform, and salinity was normal to possibly slightly lower than normal. The biota displays a chlorozoan assemblage, but is depleted in corals due to their global decline at this time. Sediment and nutrient input onto the platform was low, leading to a resource limited environment favouring the development of large benthic foraminifera. Localised tectonics, in the form of small scale folding, produced a series of marked effects on the platform, these include: the generation of angular local unconformities, and a variation and narrowing of biofacies belts. In summary, foreland basins may display a complicated interaction between eustatic sea level variation and tectonic subsidence. In contrast to other basin types, this tectonic subsidence increases through time until eventual uplift. This provides a dominant control on the stratal architectures observed. This thesis illustrates, therefore, the potential of the use of such detailed facies and platform models to elucidate both the local, and the regional scale, controls on platform development and basin evolution.

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Martin, Keithan. "Integrating depositional facies and sequence stratigraphy in characterizing carbonate reservoirs: Mississippian limestone, western Kansas." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/20478.

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Master of Science
Geology
Matthew W. Totten
The Mississippian-aged St. Louis Limestone of Western Kansas is a carbonate resource play that has been producing oil, gas, and natural gas liquids (NGL) for over 50 years. The Mississippian Limestone is made up of heterogeneous limestones with interbedded layers of porous and non-porous units, abrupt facies changes, and diagenetic alterations. These factors combine to characterize the St. Louis Limestone's internal complexity, which complicates hydrocarbon exploration. This study focuses on improving the understanding of the geometry, distribution, and continuity of depositional facies within Kearny County, Kansas. Petrophysical analysis of a suite of geophysical logs integrated with core provided the basis for establishing facies successions, determining vertical stacking patterns within a sequence stratigraphic framework, and correlating areas of high porosity with a respective facies. The following depositional facies were identified; 1) porous ooid grainstone, 2) highly-cemented ooid grainstone, 3) quartz-carbonate grainstone, 4) peloidal grainstone, 5) micritic mudstone, and the 6) skeletal wackestone/packstone. The porous ooid grainstone is the chief reservoir facies, with log-derived porosity measurements between four and eighteen percent. In areas without available core, depositional facies were predicted and modeled using a neural network analysis tool (Kipling2.xla). Values derived from the evaluated core intervals and their respective geophysical logs served as the framework for the neural network model. This study illustrates the advantages of correlating depositional facies with reservoir quality and correlating those specific facies to geophysical logs, ultimately to create a greater understanding of the reservoir quality and potential within the St. Louis Limestone of western Kansas.

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Garnes, William Thomas. "Subsurface Facies Analysis of the Devonian Berea Sandstone in Southeastern Ohio." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1415920946.

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Higgs, R. "A facies analysis of the Bude Formation (Lower Westphalian), SW England." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371512.

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Moukhsil, Abdelali. "Géochimie, pétrologie structurale et mode de mise en place du pluton de Father, zone volcanique nord, sous-province de l'Abitibi, Canada /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1996. http://theses.uqac.ca.

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Lichtblau, Andreas. "Stratigraphy and facies at the south margin of the Archean Noranda Caldera." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1989. http://theses.uqac.ca.

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Books on the topic "Facies (Geology)"

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W, Posamentier Henry, and International Sedimentological Congress (13th : 1990 : Nottingham, England), eds. Sequence stratigraphy and facies associations. Oxfordd: Blackwell Scientific Publications, 1993.

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G, Reading H., ed. Sedimentary environments and facies. 2nd ed. Oxford: Blackwell Scientific Publications, 1986.

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P, Anadon, Cabrera Ll, and Kelts K. R, eds. Lacustrine facies analysis. Oxford: Blackwell Scientific Publications, 1991.

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I, Popov V. Geneticheskoe uchenie o geologicheskikh format͡s︡ii͡a︡kh. Moskva: "Nedra", 1985.

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Schröder-Adams, C. J. Oligocene to Miocene agglutinated foraminifers in deltaic and deep-water facies of the Beaufort-Mackenzie Basin. Ottawa: Geological Survey of Canada, 1994.

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Geological Survey of Western Australia, ed. Subsurface facies analysis of Devonian reef complexes, Lennard Shelf, Canning Basin, Western Australia. Perth, W.A: Geological Survey of Western Australia, 2000.

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Bukovac, Josip. Tectonics of the contact zone of the Dinaricum and Supradinaricum in the area of Krnjak-Barilović-Karlovac (Croatia, Yugoslavia) =: Tektonski odnosi u kontaktnoj zoni Dinarika i Supradinarika u području Krnjak-Barilović-Karlovac (Hrvatska, Jugoslavija). Zagreb: Jugoslavenska akademija znanosti i umjetnosti, 1988.

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Zubrzycki, Adam. Analiza facjalna i rozwój pułapek litologicznych w utworach miocenu autochtonicznego zapadliska przedkarpackiego między Rzeszowem a Pilznem. Wrocław: Zakład Narodowy im. Ossolińskich, 1986.

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Rice, A. H. N. Neoproterozoic glacial and associated facies in the Tanafjord-Varangerfjord area, Finnmark, north Norway. Boulder, Colo: The Geological Society of America, 2012.

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Oschmann, Wolfgang. Faziesentwicklung und Provinzialismus in Nordfrankreich und Südengland zur Zeit des obersten Jura (Oberkimmeridge-Portland). München: F. Pfeil, 1985.

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Book chapters on the topic "Facies (Geology)"

1

Bjørlykke, Knut Olav. "Sedimentary Facies." In Sedimentology and Petroleum Geology, 55–111. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-72592-0_5.

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Dercourt, Jean, and Jacques Paquet. "Sedimentary Facies." In Geology Principles & Methods, 195–206. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4956-0_12.

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Sarkar, Subir, and Santanu Banerjee. "Facies, Paleogeography and Sequence Stratigraphy." In Springer Geology, 31–104. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9551-3_2.

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Miall, Andrew D. "Fluvial Styles and Facies Models." In The Geology of Fluvial Deposits, 191–249. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-662-03237-4_8.

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Bjørlykke, Knut Olav. "Description of Sedimentary Rocks and Facies." In Sedimentology and Petroleum Geology, 35–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-72592-0_4.

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Miall, Andrew D. "Facies Architecture in Clastic Sedimentary Basins." In Frontiers in Sedimentary Geology, 67–81. New York, NY: Springer New York, 1988. http://dx.doi.org/10.1007/978-1-4612-3788-4_4.

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Stow, Dorrik A. V., Michel Cremer, Laurence Droz, William R. Normark, Suzanne O’Connell, Kevin T. Pickering, Charles E. Stelting, and Audrey A. Meyer-Wright. "Mississippi Fan Sedimentary Facies, Composition, and Texture." In Frontiers in Sedimentary Geology, 259–66. New York, NY: Springer New York, 1985. http://dx.doi.org/10.1007/978-1-4612-5114-9_38.

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Zaytseva, Elena. "Upper Devonian and Lower Carboniferous Foraminiferal Facies Associations from the Melekesskian Depression." In Springer Geology, 1159–62. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_222.

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Reijmer, John J. G., Peter K. Swart, Thorsten Bauch, Robert Otto, Lars Reuning, Sven Roth, and Susanne Zechel. "A Re-Evaluation of Facies on Great Bahama Bank I: New Facies Maps of Western Great Bahama Bank." In Perspectives in Carbonate Geology, 29–46. Chichester, West Sussex, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781444312065.ch3.

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Diez, José B., Alfredo Arche, Jean Broutin, Sylvie Bourquin, Raul De la Horra, Javier Ferrer, Soledad García-Gil, and José López-Gómez. "Palynostratigraphic Data for the Buntsandstein and Muschelkalk Facies from the Iberian Ranges (Spain)." In Springer Geology, 1067–71. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04364-7_203.

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Conference papers on the topic "Facies (Geology)"

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Mutti, E., and R. Tinterri. "Facies and Processes of Turbidite Systems." In EAGE Conference on Geology and Petroleum Geology of the Mediterranean and Circum-Mediterranean Basins. European Association of Geoscientists & Engineers, 2000. http://dx.doi.org/10.3997/2214-4609.201406005.

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Galli, M. T., R. Berto, C. Onzaca, and F. Ricciuti. "A novel two-stage segmentation technique for unsupervised textural facies recognition." In Fourth EAGE Borehole Geology Workshop. European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.2021626010.

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Khan, D. A., R. Husain, and A. A. Sajer and M.M. Al-Ajmi. "Khuff Formation in Kuwait: Depositional Facies and Diagenetic Control on Reservoir Characterization." In Third Arabian Plate Geology Workshop. Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20144066.

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Ali Kavoosi, M., M. R. Naiji, A. Mahmoudi, and M. Nazarian and A.M. Jamali. "Reservoir Facies Controlling Factors in the Upper Permian Dalan Formation, Southwest Iran." In Third Arabian Plate Geology Workshop. Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20144082.

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Bertozzi, G., W. Paltrinieri, D. Di Biase, A. Artoni, and E. Mutti. "Integration of Outcrop, Core and Wireline-Log Facies Analysis for Reservoir." In EAGE Conference on Geology and Petroleum Geology of the Mediterranean and Circum-Mediterranean Basins. European Association of Geoscientists & Engineers, 2000. http://dx.doi.org/10.3997/2214-4609.201406056.

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Nurmi, R. D. "Eolian Sandstone Reservoirs: Bedding Facies and Production Geology Modeling." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1985. http://dx.doi.org/10.2118/14172-ms.

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Lubeseder, S., J. Kuss, and M. Zahran. "Mid Cretaceous Stratigraphy, Facies and Carbon-Isotope Curves of Northwest-Qatar." In Second Arabian Plate Geology Workshop 2010. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.20145348.

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Immenhauser, A. "The Albian Sedimentary Record of Southeast Arabia - Facies, Sequence Stratigraphy and Depositional Environments." In Second Arabian Plate Geology Workshop 2010. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.20145630.

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Walz, L., and T. Aigner. "Khuff Sequence 5 (KS5), Oman Mountains: Lateral Facies and Sequence Variability – a Record of Differential Subsidence?" In Third Arabian Plate Geology Workshop. Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20144056.

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Sharp, I. R., J. C. Embry, D. W. Hunt, D. Morsalnezhad, S. Packer, E. Caus, M. Jalili, et al. "Sequence Stratigraphic, Facies & Reservoir Framework for the Bangestan Group, Lurestan, Zagros Mountains, Iran." In Second Arabian Plate Geology Workshop 2010. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.20145342.

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Reports on the topic "Facies (Geology)"

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Hickson, C. J., J. B. Mahoney, and P. Read. Geology of Big Bar map area, British Columbia: facies distribution in the Jackass Mountain Group. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1994. http://dx.doi.org/10.4095/193632.

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Evenchick, C. A., P. S. Mustard, J. S. Porter, and C. J. Greig. Regional Jurassic and Cretaceous facies assemblages, and structural geology in Bowser Lake map area [104A], B.C. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/183861.

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Mountjoy, E. W., and S. E. Grasby. Geology of the Footwall of the Blackman Thrust and Facies Variations in Middle Miette Group, southern Selwyn Range, British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132512.

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Jefferson, C. W., S. Pehrsson, V. Tschirhart, T. Peterson, L. Chorlton, K. Bethune, J. C. White, et al. Geology and metallogeny of the northeast Thelon Basin region, Nunavut, and comparison with the Athabasca Basin, Saskatchewan. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332499.

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Based on extensive remapping of the northeast Thelon Basin region in Nunavut, uranium exploration criteria are adapted from those of the Athabasca Basin in Saskatchewan, as basin-specific paradigms. The Athabasca Basin straddles the Rae and Hearne cratons and the Taltson magmatic zone, whereas the Thelon Basin rests entirely within the Rae Craton. In the Athabasca Basin, four unconformity-bounded siliciclastic sequences with different paleocurrents record a complex depositional history, whereas the Thelon Formation is a single, albeit cyclic siliciclastic unit with uni-modal paleocurrents. Beneath the Athabasca Basin, amphibolite-grade, conductive graphitic-pyritic-Paleoproterozoic units localize all major deposits. Conductor analogues below the Thelon Basin are barren, impermeable, black slate of anchizone to lower-greenschist-facies grade. Instead, the Thelon uranium deposit host rocks are Neoarchean pyritic greywacke and epiclastic rocks that range in metamorphic grade from lower- to upper-amphibolite facies. Similar mineralogical sources, saline brines, alteration (fluorapatite, aluminum-phosphate-sulphate minerals, chlorite, clays, and desilicification), and reactivated intersecting faults focused unconformity-type uranium mineralization in each basin. Previously published ages for pre-ore fluorapatite cements of the Athabasca and Thelon basins (1638 versus 1688 to 1667 Ma, respectively) reaffirm their independent diagenetic-hydrothermal histories.

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Cawood, T. K., and J. M. Peter. The geology of critical battery metals: a spotlight on Co in VMS deposits and Li in pegmatites. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332348.

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As we move away from a fossil fuel-driven economy, the demand for metals used in energy-dense, rechargeable batteries is increasing; these include cobalt and lithium. Although cobalt is mostly obtained as a by-product from nickel and copper mining, significant amounts also occur in volcanogenic massive sulfide (VMS) deposits, of which Canada has many. However, the primary controls on cobalt distribution in VMS deposits are poorly understood, and may be affected by deformation and metamorphism. We show that cobalt can occur in pyrite, which retains its primary composition through greenschist facies metamorphism; and in pyrrhotite, which expels some cobalt during deformation to form cobaltite crystals. In contrast, most of the global lithium supply is derived from rare metal pegmatites and salars, with pegmatites the most important Canadian source. Our preliminary results confirm that lithium-bearing pegmatites can form directly during anatexis, as well as from fractional crystallization of large bodies of granitic magma.

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Steenkamp, H. M., N. Wodicka, O. M. Weller, J. Kendrick, I. Therriault, T. Peterson, C. J M Lawley, and V. Tschirhart. Bedrock geology, Wager Bay area, Kivalliq, Nunavut, parts of NTS 56-F, G. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331890.

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New geological mapping in the Tehery Lake-Wager Bay area of northwestern Hudson Bay, Nunavut, frames the emplacement, depositional, and metamorphic histories of the dominant rock types, major structures, and links to neighbouring areas of the central Rae Craton and Chesterfield Block. The area is divided into six domains (Ukkusiksalik, Douglas Harbour, Gordon, and Lunan domains presented here, and Kummel Lake Domain and Daly Bay Complex on adjoining maps) defined by large-scale structures and characterized by differing metamorphic assemblages, Sm-Nd and U-Pb isotopic data, and/or specific lithologies. Meso- to Neoarchean granitoid rocks underlie most of the area and are tectonically intercalated with Archean (volcano)sedimentary packages (Kummel Lake, Lorillard, and Paliak belts). These rocks are locally intruded by ca. 2.62 to 2.58 Ga Snow Island suite granite and cut by younger, thin, east-trending diabase dykes. Paleoproterozoic (volcano)sedimentary rocks are preserved in the Kingmirit belt (Daly Bay Complex) and in basement-cover infolds of Ketyet River group-equivalent strata (Douglas Harbour and Ukkusiksalik domains). In the south, the Daly Bay Complex (comprising mostly mafic granulite-facies rocks) and Kummel Lake Domain (a granulite-grade core complex) share some characteristics with rocks of the Kramanituar and Uvauk complexes, which may delineate the northeastern segment of the ca. 1.90 Ga Snowbird tectonic zone. The Paleoproterozoic Trans-Hudson Orogeny had widespread, penetrative structural and metamorphic effects on the area, and led to the intrusion of the ca. 1.85 to 1.81 Ga Hudson suite monzogranite and mafic ultrapotassic rocks, and ca. 1.83 Ga monzodiorite in the Ukkusiksalik and Douglas Harbour domains. The area is cut by large, southeast-trending gabbro dykes of the 1.267 Ga Mackenzie igneous event.

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Jackson, G. D. Bedrock geology, northwest part of Nuluujaak Mountain, Baffin Island, Nunavut, part of NTS 37-G/5. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/314670.

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The map area lies about 40 km northwest of Baffinland's iron mine. Dykes of unit mAnA3 within unit mAnA2 suggest that unit mAnA2 predates unit mAnA3. Unit nAMqf, basal Mary River Group unit, includes regolith material from units mAnA2 and mAnA3. Unit mAnAm may include some dykes of unit nAMb. The Mary River Group was deposited in a volcanic-arc environment, yielding zircon U-Pb ages mostly in the range of 2.88 to 2.72 Ga. Iron-formation (unit nAMi) is approximately 276 m thick locally, with oxide facies (unit nAMio) being most abundant. The quartzite triangle west of 'Iron lake' (unofficial name) may be a small horst. The main east-west-trending synclinal fold, including the area around 'Iron lake' and the no. 4 ore deposit, is upright, nearly isoclinal, and plunges mostly easterly at both ends with small scale anticlines and synclines in the middle. Magnetite constitutes about 75% of high-grade iron deposits in the north limb, whereas hematite predominates in south-limb deposits. K-Ar and Rb-Sr ages indicate middle Paleoproterozoic overprinting. Central Borden Fault Zone was active at ca. 1.27 Ga and during or after Ordovician time. Note: please be aware that the information contained in CGM 408 is based on legacy data from the 1960-1990s and that it has been superseded by regional-scale information contained in CGM 403.

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Steenkamp, H. M., N. Wodicka, C. J M Lawley, T. Peterson, O. M. Weller, J. Kendrick, and V. Tschirhart. Bedrock geology, Armit Lake area, Kivalliq, Nunavut, NTS 56-B and 56-C east. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331889.

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Abstract:

New geological mapping in the Tehery Lake-Wager Bay area of northwestern Hudson Bay, Nunavut, frames the emplacement, depositional, and metamorphic histories of the dominant rock types, major structures, and links to neighbouring areas of the central Rae Craton and Chesterfield Block. The area is divided into six domains (Gordon, Lunan, and Kummel Lake domains presented here, and Ukkusiksalik and Douglas Harbour domains and Daly Bay Complex on adjoining maps) defined by large-scale structures and characterized by differing metamorphic assemblages, Sm-Nd and U-Pb isotopic data, and/or specific lithologies. Meso- to Neoarchean granitoid rocks underlie most of the area and are tectonically intercalated with Archean (volcano)sedimentary packages (Kummel Lake, Lorillard, and Paliak belts). These rocks are locally intruded by ca. 2.62 to 2.58 Ga Snow Island suite granite and cut by younger, thin, east-trending diabase dykes. Paleoproterozoic (volcano)sedimentary rocks are preserved in the Kingmirit belt (Daly Bay Complex) and in basement-cover infolds of Ketyet River group-equivalent strata (Douglas Harbour and Ukkusiksalik domains). In the south, the Daly Bay Complex (comprising mostly mafic granulite-facies rocks) and Kummel Lake Domain (a granulite-grade core complex) share some characteristics with rocks of the Kramanituar and Uvauk complexes, which may delineate the northeastern segment of the ca. 1.90 Ga Snowbird tectonic zone. The Paleoproterozoic Trans-Hudson Orogeny had widespread, penetrative structural and metamorphic effects on the area, and led to the intrusion of the ca. 1.85 to 1.81 Ga Hudson suite monzogranite and mafic ultrapotassic rocks, and ca. 1.83 Ga monzodiorite in the Ukkusiksalik and Douglas Harbour domains. The area is cut by large, southeast-trending gabbro dykes of the 1.267 Ga Mackenzie igneous event.

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9

Steenkamp, H. M., N. Wodicka, C. J M Lawley, T. Peterson, W. Garrison, I. Therriault, J. Kendrick, O. M. Weller, and V. Tschirhart. Bedrock geology, Daly Bay area, Kivalliq, Nunavut, NTS 56-A, 46-D west, 46-E southwest, and 56-H south. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331888.

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Abstract:

New geological mapping in the Tehery Lake-Wager Bay area of northwestern Hudson Bay, Nunavut, frames the emplacement, depositional, and metamorphic histories of the dominant rock types, major structures, and links to neighbouring areas of the central Rae Craton and Chesterfield Block. The area is divided into six domains (Ukkusiksalik, Douglas Harbour, and Gordon domains and Daly Bay Complex presented here, and Lunan and Kummel Lake domains on adjoining maps) defined by large-scale structures and characterized by differing metamorphic assemblages, Sm-Nd and U-Pb isotopic data, and/or specific lithologies. Meso- to Neoarchean granitoid rocks underlie most of the area and are tectonically intercalated with Archean (volcano)sedimentary packages (Kummel Lake, Lorillard, and Paliak belts). These rocks are locally intruded by ca. 2.62 to 2.58 Ga Snow Island suite granite and cut by younger, thin, east-trending diabase dykes. Paleoproterozoic (volcano)sedimentary rocks are preserved in the Kingmirit belt (Daly Bay Complex) and in basement-cover infolds of Ketyet River group-equivalent strata (Douglas Harbour and Ukkusiksalik domains). In the south, the Daly Bay Complex (comprising mostly mafic granulite-facies rocks) and Kummel Lake Domain (a granulite-grade core complex) share some characteristics with rocks of the Kramanituar and Uvauk complexes, which may delineate the northeastern segment of the ca. 1.90 Ga Snowbird tectonic zone. The Paleoproterozoic Trans-Hudson Orogeny had widespread, penetrative structural and metamorphic effects on the area, and led to the intrusion of the ca. 1.85 to 1.81 Ga Hudson suite monzogranite and mafic ultrapotassic rocks, and ca. 1.83 Ga monzodiorite in the Ukkusiksalik and Douglas Harbour domains. The area is cut by large, southeast-trending gabbro dykes of the 1.267 Ga Mackenzie igneous event.

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10

Kuster, K., C. M. Lesher, and M. G. Houlé. Geology and geochemistry of mafic and ultramafic bodies in the Shebandowan mine area, Wawa-Abitibi terrane: implications for Ni-Cu-(PGE) and Cr-(PGE) mineralization, Ontario and Quebec. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329394.

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The Shebandowan Ni-Cu-(PGE) deposit occurs in the Shebandowan greenstone belt in the Wawa-Abitibi terrane. This deposit is one of a few economic Ni-Cu-(PGE) deposits in the Superior Province and one of a very few deposits worldwide that contains both Ni-Cu-(PGE) and Cr-(PGE) mineralization. The mafic-ultramafic successions in the area comprise abundant flows and sills of tholeiitic basalt and lesser Al-undepleted komatiite (MgO &gt;18 wt%, Al2O3/TiO2 = 15-25), the latter indicating separation from mantle sources at shallow levels. Siliceous high-Mg basalts (MgO 8-12 wt%, SiO2 &gt; 53 wt%, TiO2 &lt; 1.2 wt%, La/Sm[MN] &lt; 1-2) are relatively abundant in the area and likely represent crustally contaminated komatiites. Ultramafic bodies in the Shebandowan mine area comprise at least three or four komatiitic sills (A-B, C, D) and at least two komatiitic flows (E, F), all of which are altered to serpentinites or talc-carbonate schists with relict igneous chromite and rare relict igneous orthopyroxene-clinopyroxene. Unit A-B contains pentlandite-pyrrhotite-chalcopyrite-pyrite-magnetite mineralization, occurring as massive sulfides, sulfide breccias, or stringers, and subeconomic chromite mineralization in contorted massive bands varying from a few millimetres up to 10 metres thick. The localization of massive and semi-massive Ni-Cu-(PGE) ores along the margins of Unit A and the paucity of disseminated and net-textured ores suggest tectonic mobilization. Chromite is typically zoned with Cr-Mg-Al-rich (chromite) cores and Fe-rich (ferrichromite/magnetite) rims due to alteration and/or metamorphism, but rarely contains amoeboid magnetite cores. The thickness of chromite in Unit B is too great to have crystallized in cotectic proportion from the komatiitic magma and a model involving dynamic upgrading of magnetite xenoliths derived from interflow oxide facies iron formations is being tested.

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