Relevant bibliographies by topics / Granite geochemistry

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Academic literature on the topic 'Granite geochemistry'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Granite geochemistry"

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Mishra, Sumit, Vinod K. Singh, Alexander I. Slabunov, H. C. Nainwal, Pradip K. Singh, Neeraj Chaudhary, and D. C. Nainwal. "Geochemistry and geodynamic setting of Paleoproterozoic granites of Lesser Garhwal Himalaya, India." Journal of Geoscience, Engineering, Environment, and Technology 4, no. 2-2 (July 25, 2019): 28. http://dx.doi.org/10.25299/jgeet.2019.4.2-2.2138.

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The granite and gneisses rocks are well exposed around Toneta, Tilwara and Chirbatiyakhal region in the Lesser Garhwal Himalaya have less studied which consider as Paleoproterozoic age. The granites from Toneta area are classified as K-rich peraluminous granite with low Na2O varies from 0.85 to 2.4 wt.% and high K2O content varies from 5.0 to 6.9 wt.%. The average Al2O3 (14.16 wt.%) in the granite is greater than the total alkalies (Na2O+K2O = Av. 7.62 wt.%), the Titania (TiO2) content is low ranging from 0.1 to 0.28 wt. %. In the Y + Nb – Rb, Y – Nb, Ta + Yb – Rb, and Yb – Ta discrimination diagram of Pearce et al. (1984) show that the Toneta granites mostly plots within the syn-collision granite fields. This is typical collisional granite.
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Khairul Amri Kamarudin, Mohd, Musa Garba Abdullahi, Mohd Hariri Arifin, Roslan Umar, Muhammad Hafiz Md Saad, and Iya Garba. "Investigation of Road Bank Failures based on Mineralogical Composition Studies in Kano-Abuja Road Northern, Nigeria." International Journal of Engineering & Technology 7, no. 4.34 (December 13, 2018): 167. http://dx.doi.org/10.14419/ijet.v7i4.34.23852.

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This article investigated the general compositions of the areas (the road) including the geology, mineralogy, and geochemistry to explore the reason for the road failure. The zone is underlain basement (storm cellar) and sedimentary rocks of different textures, mineralogy, and geochemistry. The results implies that the areas that is most stable along the road portions is underlain by the granite-gneiss, granites, amphibole schist and quartz, schist and small sandstone while portions with the failures are underlain by mica schist, phyllite, and coarse-grained granite. It is apparently sure from this study that poor quality metasedimentary rocks constitute the formation of the failed portions. However, the high numbers of the sediment and sandstone present in the area that can easily be weathered due to the climate variation have increased the failure. In conclusion, the result will help the engineers during reconstruction of these parts need to be excavating deeply and replace with granite-gneiss, granites, amphibole schist and quartz for better result.
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Gosselin, D. C., J. J. Papike, C. K. Shearer, Z. E. Peterman, and J. C. Laul. "Geochemistry and origin of Archean granites from the Black Hills, South Dakota." Canadian Journal of Earth Sciences 27, no. 1 (January 1, 1990): 57–71. http://dx.doi.org/10.1139/e90-005.

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The Little Elk Granite (2549 Ma) and granite at Bear Mountain (BMG) (~2.5 Ga) of the Black Hills formed as a result of a collisional event along the eastern margin of the Wyoming Province during the late Archean. Geochemical modelling and Nd isotopic data indicate that the Little Elk Granite was generated by the partial melting of a slightly enriched (εNd = −1.07 to −3.69) granodioritic source that had a crustal residence time of at least 190 Ma. The medium-grained to pegmatitic, peraluminous, leucocratic BMG was produced by melting a long-lived (>600 Ma), compositionally variable, enriched (εNd = −7.6 to −12.3) crustal source. This produced a volatile-rich, rare-earth-element-poor magma that experienced crystal–melt–volatile fractionation, which resulted in a lithologically complex granite.The production of volatile-rich granites, such as the BMG and the younger Harney Peak Granite (1715 Ma), is a function of the depositional and post-depositional tectonic environment of the sedimentary source rock. These environments control protolith composition and the occurrence of dehydration and melting reactions that are necessary for the generation of these volatile-rich leucocratic granites. These types of granites are commonly related to former continental–continental accretionary boundaries, and therefore their occurrence may be used as signatures of ancient continental suture zones.
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Stone, Maurice. "The Tregonning granite: petrogenesis of Li-mica granites in the Cornubian batholith." Mineralogical Magazine 56, no. 383 (June 1992): 141–55. http://dx.doi.org/10.1180/minmag.1992.056.383.01.

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AbstractLi-mica (zinnwaldite and/or lepidolite)—topaz—albite granites in the Tregonning—Godolphin pluton and similar rocks in the St. Austell pluton appear to be petrogenetically unrelated to the spatially associated biotite granites. Evidence is provided by lack of development of Li-mica granites at roof zones of biotite granites and markedly different trends and composition fields in bivariate plots such as Li vs. Cs, Rb vs. Sr and Nb vs. Zr. Thus, differentiation of biotite granite magma is unlikely to have generated Li-mica granite magma, as also, on its own, is partial melting of biotite granite or biotiteabsent residual lower crust. However, partial melting of biotite-rich residual rocks involving biotite breakdown could yield a trace alkali- and F-enriched melt, although this would require marked femic mineral, K-feldspar and anorthite fractionation, and Na-enrichment. It is proposed that volatiles derwed from either a mantle source or the crust/mantle interface have aided metasomatism of either residual S-type crust that earlier provided S-type biotite granite magma, or basic (biotite-rich) granitoid, to produce a low-temperature, low-viscosity Li-mica granite melt that rose rapidly in the crust soon after the emplacement of associated biotite granites.
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Estrade, Guillaume, Stefano Salvi, and Didier Béziat. "Crystallization and destabilization of eudialyte-group minerals in peralkaline granite and pegmatite: a case study from the Ambohimirahavavy complex, Madagascar." Mineralogical Magazine 82, no. 2 (February 28, 2018): 375–99. http://dx.doi.org/10.1180/minmag.2017.081.053.

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AbstractEudialyte-group minerals (EGM) are very common in highly evolved SiO2-undersaturated syenites and are characteristic minerals of agpaitic rocks. Conversely, they are extremely rare in peralkaline granites, with only a handful of EGM occurrences reported worldwide. Here, we study two new examples of EGM occurrence in two types of peralkaline pegmatitic granites from the Cenozoic Ambohimirahavavy complex, and assess the magmatic conditions required to crystallize EGM in peralkaline SiO2-oversaturated rocks. In the transitional granite (contains EGM as accessory minerals) EGM occur as late phases and are the only agpaitic and major rare-earth element (REE) bearing minerals. In the agpaitic granite (contains EGM as rock-forming minerals) EGM are early-magmatic phases occurring together with two other agpaitic minerals, nacareniobsite-(Ce) and turkestanite. In these granites, EGM are partly-to-completely altered and replaced by secondary assemblages consisting of zircon and quartz in the transitional granite and an unidentified Ca-Na zirconosilicate in the agpaitic granite. Ambohimirahavavy EGM, as well as those from other peralkaline granites and pegmatites, are richer in REE and poorer in Ca than EGM in nepheline syenites. We infer that magmatic EGM are rare in SiO2-oversaturated rocks because of low Cl concentrations in these melts. At Ambohimirahavavy, contamination of the parental magma of the agpaitic granite with Ca-rich material increased the solubility of Cl in the melt promoting EGM crystallization. In both granite types, EGM were destabilized by the late exsolution of a fluid and by interaction with an external Ca-bearing fluid.
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Yu, Zhi-Feng, Qi-Ming Peng, Zheng Zhao, Ping-An Wang, Ying Xia, Yu-Qi Wang, and Hao Wang. "Geochronology, Geochemistry, and Geodynamic Relationship of the Mafic Dykes and Granites in the Qianlishan Complex, South China." Minerals 10, no. 12 (November 29, 2020): 1069. http://dx.doi.org/10.3390/min10121069.

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The Qianlishan complex, located in Hunan Province of South China, is closely associated with intense W-dominated polymetallic mineralization. The Qianlishan complex is composed of three phases: the main-phase porphyritic and equigranular granites, granite porphyry, and mafic dykes. Geochronologically, the zircon U-Pb dating results show that the porphyritic and equigranular granites have ages of approximately 159 and 158 Ma, respectively, similar to those of mafic dykes (approximately 158 Ma), while the granite porphyry was formed later at approximately 145 Ma. Geochemically, the mafic dykes are characterized by calc-alkaline high-Mg andesite (HMA) with high MgO, TiO2, Mg#, and CA/TH index. They exhibit significantly depleted εNd(t) and εHf(t) with high Ba/La, La/Nb, and (La/Yb)N, indicating that they formed from mixing melts of depleted asthenospheric mantle and metasomatized subcontinental lithospheric mantle (SCLM). The main-phase granites are peraluminous and are characterized by high SiO2, low (La/Yb)N ratios, and relative depletion in Ba, Sr, Ti, and Eu. They also display negative correlations between La, Ce, Y, and Rb contents, suggesting that they are highly fractionated S-type granites. Furthermore, they show high εNd(t) and εHf(t), CaO/Na2O ratios, HREE, and Y contents, indicating that they were produced by parental melting of ancient basement mixed with mantle-derived components. In contrast, the granite porphyry shows A-type signature granites, with higher εNd(t) and εHf(t) and CaO/Na2O ratios than the main-phase granites but similar Zr/Nb and Zr/Hf ratios to the mafic dykes, suggesting that they are the products of partial melting of a hybrid source with ancient basement and the mafic dykes. We thus infer that the slab roll-back led to generation of Qianlishan back-arc basalt and HMA and further triggered the formation of the Qianlishan granite.
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Pribavkin, S. V., N. S. Borodina, and M. V. Chervyakovskaya. "Geochemistry of trace elements in rock-forming minerals of gneisses and granites of the Murzinka granite area, Central Urals." МИНЕРАЛОГИЯ (MINERALOGY), no. 3 (October 28, 2020): 74–88. http://dx.doi.org/10.35597/2313-545x-2020-6-3-6.

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The Murzinka granite area (Central Urals), which combines Murzinka granite pluton and underlying rocks of the Murzinka-Adui metamorphic complex, exhibits an evident wetrending geochemical zonation of magmatism with increasing of Rb, Li, Nb and Ta contents and decreasing ba and Sr contents and K/Rb, zr/Hf and Nb/Ta ratios from vein granites of the Yuzhakovo complex to granites of the Vatikha complex and further to granites of the Murzinka complex (Fershtater et al., 2019). To develop the ideas about geochemical zonation of the Murzinka granite magmatism, as well as about the role of gneisses of the Murzinka-Adui metamorphic complex in the formation of granites, we studied the distribution of trace elements in biotite and feldspars of gneisses and granites. Biotite shows an increase in Li, Rb, Cs, Nb, Ga, zn, Mn, Sc, Sn and Tl contents and a decrease in V, Cr, Co, Ni, Y, zr and ba contents from vein biotites of the Yuzhakovo granites to two-mica granites of the Murzinka complex. The composition of feldspars also changes in this direction: plagioclase is enriched in Li, Rb, Cs, be, zn and depleted in Sr, ba, Ga and Pb and K-feldspar is enriched in Rb and depleted in Sr and ba. The varying trace element composition of rock-forming minerals of gneisses and granites is explained by We-trending change in the composition of a crustal protolith, as well as the formation conditions of granites. Figures 6. Tables 4. References 17.
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Kitchen, D. E. "The disequilibrium partial melting and assimilation of Caledonian granite by Tertiary basalt at Barnesmore, Co. Donegal." Geological Magazine 126, no. 4 (July 1989): 397–405. http://dx.doi.org/10.1017/s0016756800006580.

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AbstractA regional Tertiary basaltic dyke swarm intensifies within a Caledonian granite at Barnesmore, Co. Donegal. Rapid heating along the contact of one (possible feeder) dyke resulted in disequilibrium partial melting of granite wall-rock and the generation of a range in melt composition by the in situ melting of feldspar. The compositional variability of the melt is preserved in a glass containing feldspar spherulites and other quench phases which suggest rapid cooling. During partial melting the trace elements, Rb, Sr, and Ba were mobile and have been concentrated in glassy melted granite close to the contact of one dyke. The textures, mineralogy and geochemistry of dolerite in two dykes indicate localized bulk contamination and mixing with melted granite. This had a particularly marked effect on the crystallization of pyroxene and resulted in a wide range in mineral composition reflecting the degree of contamination. The intensification of a regional dyke swarm in well-jointed granite might control the siting of some major intrusive centres. Granite melted and mixed with basaltic magma may contribute to the evolution of granites in such centres.
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Lin, J. Q., F. Ding, C. H. Chen, and T. Shen. "Zircon U–Pb geochronology, Hf isotope composition, and petrochemical characteristics of Paleocene granitoids in the western Gangdese Belt, Tibet." Russian Geology and Geophysics 62, no. 6 (June 1, 2021): 666–84. http://dx.doi.org/10.2113/rgg20194131.

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Abstract —The research team studied the petrology, whole-rock geochemistry, zircon U–Pb age, and stable isotopic characteristics of the Rongguo Longba and Garongcuo granites of the Nuocang area to understand better the impact of Neo-Tethys ocean subduction and In-dia–Eurasia continental collision on Paleocene tectonomagmatic processes along the southern margin of the Gangdese Belt. The Rongguo Longba granite and Garongcuo granite porphyry formed at 61.86 and 62.17 Ma, respectively. The Nuocang granitoids are characterized by (1) high SiO2, NaO2, and Al2O3 contents and low FeOtot, MgO, and TiO2 contents; (2) LREE and LILE enrichment and HREE and HFSE (Nb, P, and Ti) depletion; and (3) obvious negative Eu anomalies. These features indicate that the Nuocang granites are of the high-K calc-alkaline and peraluminous granite types. Furthermore, their zircon Hf isotope characteristics suggest that the magma source region has an ancient crystalline basement. The basaltic andesitic crystal tuff is the product of garnet–peridotite partial melting and crust contamination from rising magma emplacement.
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Semblano, Flávio Robson Dias, Moacir José Buenano Macambira, and Marcelo Lacerda Vasquez. "Petrography, geochemistry and Sm-Nd isotopes of the granites from eastern of the Tapajós Domain, Pará state." Brazilian Journal of Geology 46, no. 4 (December 2016): 509–29. http://dx.doi.org/10.1590/2317-4889201620160059.

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ABSTRACT: The Tapajós Domain, located in the southern portion of the Amazonian Craton, is a tectonic domain of the Tapajós-Parima Province, a Paleoproterozoic orogenic belt adjacent to a reworked Archean crust, the Central Amazonian Province. This domain has been interpreted as the product of an assemblage of successive magmatic arcs followed by post-orogenic A-type magmatism formed ca. 1880 Ma-old granites of the Maloquinha Intrusive Suite. The study presented here was carried out in four granitic bodies of this suite (Igarapé Tabuleiro, Dalpaiz, Mamoal and Serra Alta) from the eastern part of the Tapajós Domain, as well as an I-type granite (Igarapé Salustiano) related to the Parauari Intrusive Suite. The A-type granites are syenogranites and monzogranites, and alkali feldspar granites and quartz syenites occur subordinately. These rocks are ferroan, alkalic-calcic to alkalic and dominantly peraluminous, with negative anomalies of Ba, Sr, P and Ti and high rare earth elements (REE) contents with pronounced negative Eu anomaly. This set of features is typical of A-type granites. The Igarapé Salustiano granite encompasses monzogranites and quartz monzonites, which are magnesian, calcic to calc-alkalic, high-K and mainly metaluminous, with high Ba and Sr contents and depleted pattern in high field strength elements (HFSE) and heavy rare earth elements (HREE), characteristic of I-type granites. The source of magma of these A-type granites is similar to post-collisional granites, while the I-type granite keeps syn-collisional signature. Most of the studied granites have εNd (-3.85 to -0.76) and Nd TDM model ages (2.22 to 2.46 Ga) compatible with the Paleoproterozoic crust of the Tapajós Domain. We conclude that the Archean crust source (εNd of -5.01 and Nd TDM of 2.6 Ga) was local for these A-type granites.
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Dissertations / Theses on the topic "Granite geochemistry"

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Henrique-Pinto, Renato. "Metaconglomerados e rochas associadas do Grupo São Roque a noroeste da cidade de São Paulo: proveniência e implicações para a idade da sedimentação." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/44/44143/tde-11112008-115527/.

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O Grupo São Roque caracteriza-se por rochas de baixo grau metamórfico, depositadas em ambiente marinho com atividade vulcânica submarina. As ocorrências da Formação Morro Doce são dominadas por metarcóseos e metarenitos feldspáticos com expressivas lentes metaconglomeráticas, que formam uma seqüência considerada como unidade basal do Grupo São Roque. Os metaconglomerados, com o amplo predomínio de clastos graníticos, têm excelente potencial para identificação de suas fontes e idades. Rochas metavulcânicas ácidas e básicas intercaladas nesta seqüência constituem importante marcador tectônico e cronológico. O estudo petrográfico dos clastos graníticos dos metaconglomerados da Formação Morro Doce permitiu a identificação de quatro variedades petrográficas: biotita monzogranito porfirítico, biotita monzogranito inequigranular, biotita monzogranito equigranular e leucogranito inequigranular. O caráter comagmático entre os clastos é confirmado pelos dados petrográficos e geoquímicos. Rochas metavulcânicas ácidas que ocorrem intercaladas a metarcóseos e metaconglomerados, na região do Morro do Polvilho, correspondem a meta-traquidacitos e metariolitos porfiríticos. Os metarcóseos mostram afinidades geoquímicas com os clastos de granito dos metaconglomerados, e diferenciam-se das rochas metavulcânicas ácidas associadas pela geoquímica e pela petrotrama sedimentar composta predominantemente por feldspatos detríticos sub-angulosos. De características geoquímicas típicas de magmatismo intraplaca, em especial baixo mg# (~20), altos teores de Zr (560-730 ppm), Y e Nb, além de baixo Sr (70-120 ppm), as rochas metavulcânicas ácidas do Grupo São Roque apresentam similaridades com as metavulcânicas ácidas da base do Supergrupo Espinhaço. Datações U-Pb por LA-MC-ICP-MS em cristais de zircão extraídos das variedades predominantes de seixos graníticos revelaram idades Paleoproterozóicas (2199 ± 8.5 Ma e 2247 ± 13 Ma). Idades comparáveis só são encontradas regionalmente em núcleos do embasamento do Supergrupo Espinhaço (Complexo Mantiqueira) e Açungui (núcleos Tigre, Setuva e Betari). A idade de deposição dos metaconglomerados (1.75-1.79 Ga), indicada pelas datações U-Pb em rochas metavulcânicas intercaladas é consistente com a idade dos clastos (granito fonte), datados em 2.2 Ga, e com a ausência de indicações de contribuições de áreas-fontes mais jovens para os metassedimentos da Fm. Morro Doce.
The São Roque Group is composed of low-grade metamorphic rocks deposited in marine environment with coeval volcanic activity. The Morro Doce Formation is dominated by metaarkose and feldspatic meta-sandstone with expressive metaconglomeratic lenses, which form a sequence regarded as the basal unit of São Roque Group. The metaconglomerates with wide prevalence of granite pebbles have excellent potential to identify their sources and ages. Metavolcanic acidic and basic rocks interspersed in this sequence are an important tectonic and geochronologic marker. The petrographic study of the granite pebbles from the Morro Doce Formation metaconglomerates allowed the identification of four petrographic varieties: porphyritic biotite monzogranite, inequigranular biotite monzogranite, equigranular biotite monzogranite and inequigranular leucogranite. The comagmatic character of these pebbles is confirmed by petrographic and geochemical data. Acid metavolcanic rocks interlayered with meta-arkose and metaconglomerates in the Morro do Polvilho region correspond to trachydacite and porphyritic meta-rhyolite. The metaarkose shows geochemical affinities with metaconglomerate granitic pebbles, and differs from the acid metavolcanic rocks both in their geochemical signature and in its sedimentary fabrics defined by the predominance of detritic subangulous feldspars. Their geochemical characteristics are typical of within-plate magmatism, especially the low mg # (~ 20), high Zr (560-730 ppm), Y, Nb, and low Sr (70-120 ppm), and is similar to the acid metavolcanics from the on Espinhaço Supergroup. U-Pb dating by LA-MC-ICP-MS in zircon crystals from the predominant varieties of granitic pebbles revealed Paleoproterozoic ages (2199 ± 8.5 Ma Ma and 2247 ± 13) for the main granitic source of the metaconglomerates. Comparable ages are found in the nuclei of Espinhaço Supergrup basament (Mantiqueira Complex) and Açungui (Tigre, Setuva and Betari nuclei). The depositional age of the metaconglomerates (1.75-1.79 Ga), indicated by U-Pb dating of interlayered metavolcanic rocks, is consistent with the age of the granitic source, (~2.2 Ga), and with the lack of signals of contribution from younger source areas for the Morro Doce Fm metasediments.
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Yang, Wenjin. "Géochimie et minéralogie des granites de la région de Hetai, province de Guangdong, Chine méridionale = Geochemistry and mineralogy of granites in the Hetai area, Guangdong, South China /." Thèse, Chicoutimi : Université du Québec à Chicoutimi, 1993. http://theses.uqac.ca.

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Thèse (D.R.Min.)-- Université du Québec à Chicoutimi, 1993.
Thèse presentee en collaboration de l'Université du Quebec à Chicoutimi et Institute of geochemistry, Academia Sinica, China. CaQCU Document électronique également accessible en format PDF. CaQCU
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Awoleye, Olumuyiwa Adebayo. "Weathering and iron oxide mineralogy of Hong Kong granite." Thesis, University of Glasgow, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318702.

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Oak, Keith Alan. "The geology and geochemistry of Closepet granite, Karnataka, South India." Thesis, Oxford Brookes University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278897.

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The Archaean craton of southern India has four main components. The multi-phase Peninsular gneiss, with ages from 3360-2900 Ma, is spatially dominant and grades from granulite facies in the south to greenschist facies in the north. Ages for the Peninsular gneiss range from 3360-2900 Ma. Within the craton are two suites of Greenstone Belts and supracrustal rocks. The older, high-grade Sargur type occur as enclaves in the Peninsular gneiss and are in places older than 3360 Ma. The younger, lower-grade type occur occasionally have unconformable bases with the Peninsular gneiss and have been dated from 3100-2605 Ma. Granitoids form the last major component with the Closepet granite being the largest, ages for the emplacement of the Closepet granite and many of the other granitoids cluster around 2500 Ma. The Closepet granite outcrops from Kabbal Durge in the south to the Deccan Plateau in the north, a distance of some 450 km. A 320 km section from Kabbal Durga to Hospet in the north exposes a linear trending granite. The granite outcrop varies from one of essentially partial melting and melt extraction in the south to a zone of melt accumulation in the central zone to a zone of high level intrusion of large granite bodies. Related to these changes in primary processes are changes in the granite phases, size, shape and intrusive style. The petrography of the granite phases is described. These studies help to constrain phase relationships. The petrography also provides evidence to suggest that the K-feldspar megacrysts are in fact phenocrysts. Analyses of major and trace elements utilised standard X.R.F. methods. However, the analyses of REE on selected samples involved the setting up of the department's "ICP for routine operation. This procedure is outlined. The geochemistry of the granite's is described melting and crystallization models being used to explain their petrogenesis. Harker diagrams indicate that plagioclase, sphene and apatite have strong controls on major element composition and that biotite was a residual or fractionating phase. The removal of restite biotite as granite magmas intrude is thought to be a significant process.Evidence from the petrography agrees with the equilibrium phase diagram at PH2 0 ~ 5 kbar. Plots of Peninsular gneiss in the granite phase diagram have a range of compositions which could provide minimum and non-minimum melts capable of producing the Closepet granite trend. Predicted fractional crystallization would produce a sequence of magma compositions comparable to those of the Closepet granite with an order of phase crystallization that agrees with petrographic evidence. The phase relationships further constrain subsequent melting and crystallization models utilising trace elements and REE.
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McLaughlin, Richard M. "Boron and strontium isotope study of fluids situated in fractured and unfractured rock of the Lac du Bonnet Batholith, eastern Manitoba." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0007/NQ42753.pdf.

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Dewu, Bala Bellow Muhammad. "Distribution of uranium in granites and mobility of uranium during low-temperature alteration processes." Thesis, University of Exeter, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236543.

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Mahmood, Layla A. "Mineralogy, petrology and geochemistry of some zoned dioritic complexes in Scotland." Thesis, University of St Andrews, 1986. http://hdl.handle.net/10023/15475.

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This study is an investigation into the nature and causes of petrological zonation in calc-alkaline diorite-granite plutons from the Newer granites of the Caledonian orogeny in Scotland. Six plutons were used for the study, namely Garabal Hill-Glen Fyne in the western Highlands, Glen Tilt and Glen Doll in the eastern Highlands, Comrie in the southern Highlands, and Carsphairn and Loch Doon in the Southern Uplands. The petrological zoning is concentric in the Southern Uplands and Comrie and irregular in the other three. The approach has been to acquire data on the petrography, mineral chemistry, and whole rock major and trace element chemistry for representative rock types of the petrological range within each pluton. Variations in mineral compositions are related to equilibrium crystallisation processes and indicate falling crystallisation temperatures with evolving magma composition. Mineral compositions have also been used in chemical models used to explain the observed wide variations in whole rock major oxide compositions. These models are then independently tested using models of trace element behaviour. The principal conclusions are that the main variations within the gabbro-diorite series (including cumulate peridotites and pyroxenites) are best explained by processes of fractional crystallisation from a parental gabbro or diorite magma, but in some cases the more evolved rocks (granites and granodiorites) have a more complex origin including possibly contamination of the parental magma or a distinctive magma source. The assemblage of fractionating minerals in the Garabal Hill, Comrie and Loch Doon plutons is dominated by the relatively anhydrous assemblage of orthopyroxene, clinopyroxene, plagioclase, and biotite whereas in Glen Doll it is a more hydrous assemblage dominated by amphibole. Processes of magma mixing and multi-source pulses are considered appropriate in a few cases. Regional comparisons of the within-pluton compositional variations reveal significant differences. The dominantly calc-alkaline trend shows marked differences in Fe/Mg between plutons as do trace element abundances, reflecting both differences in source region compositions and the influence of fractionating mineral phases. All plutons are I-type and high-K calc-alkaline. Parental magmas for the gabbro-diorite series have features of mantle-derived magmas though the more evolved rock types including granodiorites and granites indicate a significant contribution by crustal anatexis to the magmas.
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Wong, Ping-mei Jean. "Geochemistry, U-Pb and Sr-Nd-Hf isotopes of the Baijuhuajian A-type granites in Zhejiang Province evidence for a continuous extensional regime in the mid and late mesozoic /." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39557297.

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Arnold, Andrew Herbert. "Geologic Implications of a Geo-Chemical Study of Three Two-Mica Granites in Southern Arizona." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/231236.

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The biotite + muscovite ± garnet-bearing Texas Canyon (TC), Presumido Peak (PP), and Gunnery Range (GR) granites are members of an enigmatic suite of Eocene age granites in southern Arizona. The late orogenic granites intrude Precambrian through Jurassic metasediments and metavolcanics. The major and minor element geochemistry of the high silica, weakly peraluminous granites is rather uniform. However, trace element concentrations, REE patterns, and isotopic compositions imply gross similarities between the TC and GR granites when both are compared to the PP granite. The TC and GR granites were derived from a depleted Precambrian lower crustal source area with low Rb/Sr, while the PP granite was the result of anatectic melting of an enriched Precambrian mid-to-upper crustal source. The PP granite is an integral part of a metamorphic core complex, and this tectonic setting accounts for the geochemical differences between it and both the TC and GR granites.
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Miller, Martin Fitzhardinge. "Geochemical and isotopic characteristics of palaeo-hydrothermal fluids related to granite magmatism, S.W. England." Thesis, Open University, 1994. http://oro.open.ac.uk/57443/.

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An assessment of stepped heating procedures for the extraction and isolation of carbonaceous species from fluid inclusions resulted in the development of low-blank procedures which permitted Sl3C characterisation of palreofluid CO2 (down to nanomole quantities) with an accuracy approaching that of the corresponding analytical precision. Similar procedures were successfully applied to the ol5N measurement of palreofluid nitrogen at the sub-nanomole level. An investigation into the origin of fluids which characterised the earliest episodes of palreohydrothermal activity associated with the granites of S W England indicates that the abundance of trace carbon species (C02 , CH4 ) and nitrogen in the fluids was correlated with the metasedimentary contribution to the respective granite source. Furthermore, SiSN and ol3C data (obtained on fluid components and local Palreozoic metasediments, in conjunction with published ol5N values of Cornubian granites), indicate that carbon and nitrogen in the hydrothermal systems were derived from the granite magmas. The chemical composition of the early hydrothermal fluids, together with geochemical and isotopic constraints from the characterisation of Palreozoic metasedimentary country rocks, support the view that the fluids were genetically associated with the granites. Fluid interaction with the local metasedimentary rocks at a high level crustal appears to have been very limited. The incorporation of sedimentary matter into granitic protoliths during anatexis, with subsequent transfer to an exsolved hydrous phase during pluton cooling, is the most probable route by which palreofluid solutes entered the early hydrothermal systems. Hydrogen stable isotope data, measured on the extracted palreowaters, indicate that meteoric water was not a significant component of early hydrothermal systems associated with either the Dartmoor granite or the nearby Hemerdon Ball intrusive, if sub-solidus isotopic exchange was significant. In contrast, comparable data from early fluids associated with other component intrusives of the batholith (as characterised by W ± Sn oxide paragenesis) are consistent with the progressive dilution of a magmatic-hydrothermal component by local groundwaters.
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Books on the topic "Granite geochemistry"

1

Ross, Donald Clarence. Chemical traits and trends of the granitic rocks of the southern Sierra Nevada, California. [Denver, Colo.?]: Dept. of the Interior, Geological Survey, 1988.

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Cambel, Bohuslav. Geochémia a petrológia granitoidných hornín Malých Karpát. Bratislava: Veda, 1987.

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Zhongguo ke xue yuan. Guangzhou di qiu hua xue yan jiu suo, ed. Hengduan shan qu hua gang yan lei di qiu hua xue. Beijing: Ke xue chu ban she, 1995.

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A, Balashov I͡U︡, ed. Geokhimicheskie faktory i paragenezisy ėlementov v granitoidakh. Moskva: "Nauka", 1989.

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Amshinskiĭ, N. N. Problemy geokhimii granito- i rudoobrazovanii︠a︡: Izbrannye trudy. Novosibirsk: SNIIGGiMS, 2008.

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Nikolaevich, Ovchinnikov Lev, and Dmitrenko N. K, eds. Geokhimii͡a︡ i metallonosnostʹ palingennykh granitnykh porod skladchatykh oblasteĭ: Na primere Zapadnoĭ Mongolii. Moskva: "Nauka", 1985.

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Vladimirovich, Tauson Lev, ed. Geokhimii͡a︡ i rudonosnostʹ granitoidov redkometalʹnykh provint͡s︡iĭ. Moskva: "Nauka", 1985.

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Reĭf, F. G. Uslovii︠a︡ i mekhanizmy formirovanii︠a︡ granitnykh rudno-magmaticheskikh sistem: Po termobarogeokhimicheskim dannym, izbrannye nauchnye trudy. Moskva: IMGRĖ, 2009.

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Ejeckam, R. B. Use of petrochemistry to infer tectonic origin of granitoid rocks: A test case using AECL's chemical samples from the Atikokan and Whiteshell research areas. Pinawa, Man: Whiteshell Laboratories, 1997.

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Korotaev, M. I͡U. Fizicheskai͡a geokhimii͡a prot͡sessov greĭzenoobrazovanii͡a. Moskva: "Nauka", 1994.

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Book chapters on the topic "Granite geochemistry"

1

Wilson, R. J. A. "Ancient Granite Quarries on the Bocche di Bonifacio." In Classical Marble: Geochemistry, Technology, Trade, 103–12. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-015-7795-3_12.

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Cahyaningsih, Catur, Arrachim Maulana Putera, Gayuh Pramukti, and Mohammad Murtaza Sherzoy. "Geology and Geochemistry Analysis for Ki Index Calculation of Dompak Island Granite Bauxites to Determine the Economical Mineral." In Proceedings of the Second International Conference on the Future of ASEAN (ICoFA) 2017 – Volume 2, 947–54. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8471-3_94.

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Singh, Yamuna, G. B. Rout, A. K. Bhatt, P. S. C. Pandit, Sanjay Bagora, P. K. Gupta, S. D. Rai, and G. B. Joshi. "High-Field Strength Elements Geochemistry of Granite and Co-genetic Pegmatites of the Kawadgaon Area, Bastar Craton, Central India." In Society of Earth Scientists Series, 629–50. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89698-4_24.

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Alymova, N. V., and N. V. Vladykin. "Geochemistry, Mineralogy and Ore Content of Alkaline Granite Magmatism of East Sayan Zone (On the Example of Zashikhinsky Deposit)." In Springer Proceedings in Earth and Environmental Sciences, 63–80. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69670-2_4.

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Saikia, Ashima, Bibhuti Gogoi, Mansoor Ahmad, Rajeev Kumar, Tatiana Kaulina, and Tamara Bayanova. "Mineral Chemistry, Sr–Nd Isotope Geochemistry and Petrogenesis of the Granites of Bathani Volcano-Sedimentary Sequence from the Northern Fringe of Chotanagpur Granite Gneiss Complex of Eastern India." In Society of Earth Scientists Series, 79–120. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89698-4_5.

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Newton, R. C. "Fluids of Granulite Facies Metamorphism." In Advances in Physical Geochemistry, 36–59. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4612-4896-5_2.

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Pollard, P. J. "Geochemistry of Granites Associated with Tantalum and Niobium Mineralization." In Lanthanides, Tantalum and Niobium, 145–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-87262-4_5.

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Moll, Elizabeth J. "Geochemistry and Petrology of Mid-Tertiary Ash Flow Tuffs from the Sierra El Virulento Area, Eastern Chihuahua, Mexico." In 1989, Granites and Rhyolites, 10321–34. Washington, DC: American Geophysical Union, 2013. http://dx.doi.org/10.1002/9781118782057.ch11.

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Zimmerman, Charles, and A. M. Kudo. "Geochemistry of Andesites and Related Rocks, Rio Grande Rift, New Mexico." In Rio Grande Rift: Tectonics and Magmatism, 355–81. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/sp014p0355.

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Neiva, A. M. R. "Geochemistry of Greisenized Granites and Metasomatic Schist of Tungsten-Tin Deposits in Portugal." In Chemical Transport in Metasomatic Processes, 681–99. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-4013-0_26.

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Conference papers on the topic "Granite geochemistry"

1

Ross, Nathaniel, and Brandon Browne. "PETROLOGY AND GEOCHEMISTRY OF THE GRANITE BUTTE PORPHYRY, COAST RANGE, HUMBOLDT COUNTY, CALIFORNIA." In 116th Annual GSA Cordilleran Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020cd-347293.

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Pridmore, Cody, James Chapman, and G. B. Haxel. "GEOCHEMISTRY OF THE EOCENE PAN-TAK GRANITE OF THE COYOTE MOUNTAINS, SOUTHERN ARIZONA." In Cordilleran Section-117th Annual Meeting-2021. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021cd-363266.

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LaRue, Kimberly, and Gary S. Michelfelder. "PETROLOGY AND GEOCHEMISTRY OF THE 1.32 GA GRANITEVILLE GRANITE, ST FRANCOIS MOUNTAINS, SOUTHEAST MISSOURI." In 54th Annual GSA South-Central Section Meeting 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020sc-343650.

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Thompson, Glenn T., James H. MacDonald, Joe D. Dragovich, and Jeffrey H. Tepper. "MINERAL GEOCHEMISTRY AND GEOTHERMOBAROMETRY OF THE EOCENE GRANITE FALLS STOCK, BALD MOUNTAIN PLUTON, AND MOUNT PILCHUCK STOCK, WASHINGTON STATE." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-299275.

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Serrano, J. A., J. Quiñones, J. Cobos, P. Diaz Arocas, V. V. Rondinella, J. P. Glatz, Hj Matzke, A. Martinez, and J. A. Esteban. "Leaching Study of the Behaviour of Spent Fuel and SIMFUEL Under Simulated Granitic Repository Conditions." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1192.

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Abstract The leaching behaviour of spent fuel is of importance for the concept of direct storage of spent fuel. The aim of this study was to study UO2 irradiated fuel under simulated granitic repository conditions. In parallel with these spent fuel tests, SIMFUEL leaching studies were also performed. Direct comparisons between spent fuel and its chemical analogues, SIMFUEL, are often difficult. On one hand, because of the differences existing between spent fuel and SIMFUEL. E.g., for irradiated fuel: different origin and burnup, presence of intense radiation fields, hence radiolysis effects, or formation of cracks and pores due to the volatile fission products, hence larger surface area. On the other hand, because of different experimental procedures used by different authors. This work presents results of sequential leaching experiments in synthetic granite water in equilibrium with a cylinder of granite at room temperature in air using spent UO2 fuel and SIMFUEL. The experimental conditions and procedure for irradiated and non-irradiated materials were kept similar as much as possible. The specimens used were UO2 (43 MWd/kgU) and SIMFUEL (simulating a burnup of 30 MWd/kgU) as non-irradiated chemical analogue. A thermodynamic study by means of geochemistry codes was also performed. Differences both in fractional release and in uranium concentration in the leachate were found. The highest fractional release of uranium was measured for UO2 spent fuel. Candidate solid phases calculated for controlling the uranium solubility were soddyite ((UO2)2(SiO4)·2H2O) in the case of spent fuel and haiweete (Ca(UO2)2(Si2O5)3·5H2O) for SIMFUEL. Further work is ongoing to characterise the surfaces of the leached fuel samples and to try to confirm the preliminary attempts to identify reprecipitated secondary phases. Comparison of some fission product release between spent fuel and SIMFUEL was also performed.
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Hanchar, John M. "KEYNOTE SPEAKER: CHARACTERIZING THE METASOMATIC ALTERATION AND MINERALIZATION IN THE LYON MOUNTAIN GRANITE AND RELATED IRON OXIDE APATITE (IOA) ORES; CONSTRAINTS FROM U-PB GEOCHRONOLOGY, RADIOGENIC TRACER ISOTOPES AND TRACE-ELEMENT GEOCHEMISTRY." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272758.

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Bhattacharjee, Joyeeta, and Talat Ahmad Ahmad. "Geochemistry and Petrogenesis of Archaean Closepet Granites from Bundelkhand Craton, India: Constraints from Whole Rock Geochemistry and Zircon Geochronology." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.183.

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Quraish, S. N., K. Grice, C. Cockell, A. Holman, P. Hopper, D. Kring, M. E. Bottcher, and M. Coolen. "POST IMPACT RECOVERY OF THE DEEP GRANITIC BIOSPHERE OF THE CHICXULUB IMPACT CRATER." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134192.

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Soderberg, Evan R., and John A. Wolff. "GEOCHEMISTRY ACROSS THE IMNAHA-GRANDE RONDE CONTACT WITHIN THE COLUMBIA RIVER FLOOD BASALT PROVINCE, SE WASHINGTON." In 115th Annual GSA Cordilleran Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019cd-329496.

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Gordilho Barbosa, Rafael, Cristiano Lana, and Stefano Zincone. "Paleoproterozoic Granitic Magmatism in the Northern São Francisco Craton: New Perspectives from Geochemistry, U-Pb Geochronology and Hf Isotopes." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.863.

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Reports on the topic "Granite geochemistry"

1

David, P. P., P. Bédard, and R. Charbonneau. Stratigraphy and geochemistry of the McGerrigle granite trains of Gaspésie, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/122435.

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Whalen, J. B. Geology, petrography, and geochemistry of Appalachian granites in New Brunswick and Gaspésie, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1993. http://dx.doi.org/10.4095/183907.

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Lamothe, M. Till geochemistry in the vicinity of the Late Devonian Granites of the Hayesville area, central New Brunswick: a trenching project. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/130834.

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Thorne, K. G., D. R. Lentz, D. C. Hall, and X. Yang. Petrology, geochemistry, and geochronology of the granitic pegmatite and aplite dykes associated with the Clarence Stream gold deposit, southwestern New Brunswick. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2002. http://dx.doi.org/10.4095/213693.

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Lane, L. S., J. K. Mortensen, J. H. Dover, R. J. Thériault, K. Bell, and J. Blenkinsop. U-Pb geochronology, geochemistry, and geological setting of Devonian and Eocene granitic intrusions of northern Yukon and adjacent Alaska: site and sample descriptions, data tables, and imagery. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/313230.

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