Academic literature on the topic 'S-type granites'

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Journal articles on the topic "S-type granites"

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Regelous, Anette, Lars Scharfenberg, and Helga De Wall. "Origin of S-, A- and I-Type Granites: Petrogenetic Evidence from Whole Rock Th/U Ratio Variations." Minerals 11, no. 7 (2021): 672. http://dx.doi.org/10.3390/min11070672.

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The origin and evolution of granites remain a matter of debate and several approaches have been made to distinguish between different granite types. Overall, granite classification schemes based on element concentrations and ratios, tectonic settings or the source rocks (I-, A-, S-type) are widely used, but so far, no systematic large-scale study on Th/U ratio variations in granites based on their source or tectonic setting has been carried out, even though these elements show very similar behavior during melting and subsequent processes. We therefore present a compiled study, demonstrating an
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Clemens, J. D., and G. Stevens. "S- to I- to A-type magmatic cycles in granitic terranes are not globally recurring progressions. The cases of the Cape Granite Suite of Southern Africa and central Victoria in southeastern Australia." South African Journal of Geology 124, no. 3 (2021): 565–74. http://dx.doi.org/10.25131/sajg.124.0007.

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Abstract Recurring progression from S- to I- to A-type granites has been proposed for a subset of granitic rocks in eastern Australia. The wider applicability and the validity of this idea is explored using the Cape Granite Suite (CGS) of South Africa and the granitic and silicic volcanic rocks of central Victoria, in southeastern Australia. Within the CGS there is presently little justification for the notion that there is a clear temporal progression from early S-type, through I-type to late A-type magmatism. The I- and S-type rocks are certainly spatially separated. However, apart from a si
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White, A. J. R., and B. W. Chappell. "Some supracrustal (S-type) granites of the Lachlan Fold Belt." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 79, no. 2-3 (1988): 169–81. http://dx.doi.org/10.1017/s026359330001419x.

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ABSTRACTS-type granites have properties that are a result of their derivation from sedimentary source rocks. Slightly more than half of the granites exposed in the Lachlan Fold Belt of southeastern Australia are of this type. These S-type rocks occur in all environments ranging from an association with migmatites and high grade regional metamorphic rocks, through an occurrence as large batholiths, to those occurring as related volcanic rocks. The association with high grade metamorphic rocks is uncommon. Most of the S-type granites were derived from deeper parts of the crust and emplaced at hi
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Chappell, B. W., and A. J. R. White. "I- and S-type granites in the Lachlan Fold Belt." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 83, no. 1-2 (1992): 1–26. http://dx.doi.org/10.1017/s0263593300007720.

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ABSTRACTGranites and related volcanic rocks of the Lachlan Fold Belt can be grouped into suites using chemical and petrographic data. The distinctive characteristics of suites reflect source-rock features. The first-order subdivision within the suites is between those derived from igneous and from sedimentary source rocks, the I- and S-types. Differences between the two types of source rocks and their derived granites are due to the sedimentary source material having been previously weathered at the Earth's surface. Chemically, the S-type granites are lower in Na, Ca, Sr and Fe3+/Fe2+, and hig
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Blevin, Phillip L., and Bruce W. Chappell. "The role of magma sources, oxidation states and fractionation in determining the granite metallogeny of eastern Australia." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 83, no. 1-2 (1992): 305–16. http://dx.doi.org/10.1017/s0263593300007987.

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ABSTRACTThe ore-element associations of granite-related ore deposits in the eastern Australian Palaeozoic fold belts can be related to the inferred relative oxidation state, halogen content and degree of fractional crystallisation within the associated granite suites. Sn mineralisation is associated with both S- and I-type granites that are reduced and have undergone fractional crystallisation. Cu and Au are associated with magnetite- and/or sphene-bearing, oxidised, intermediate I-type suites. Mo is associated with similar granites that are more fractionated and oxidised. W is associated with
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Broska, Igor, and Igor Petrík. "Variscan thrusting in I- and S-type granitic rocks of the Tribeč Mountains, Western Carpathians (Slovakia): evidence from mineral compositions and monazite dating." Geologica Carpathica 66, no. 6 (2015): 455–71. http://dx.doi.org/10.1515/geoca-2015-0038.

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AbstractThe Tribeč granitic core (Tatric Superunit, Western Carpathians, Slovakia) is formed by Devonian/Lower Carboniferous, calc-alkaline I- and S-type granitic rocks and their altered equivalents, which provide a rare opportunity to study the Variscan magmatic, post-magmatic and tectonic evolution. The calculatedP-T-Xpath of I-type granitic rocks, based on Fe-Ti oxides, hornblende, titanite and mica-bearing equilibria, illustrates changes in redox evolution. There is a transition from magmatic stage atTca. 800–850 °C and moderate oxygen fugacity (FMQ buffer) to an oxidation event at 600 °C
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Broska, Igor, and Michal Kubiš. "Accessory minerals and evolution of tin-bearing S-type granites in the western segment of the Gemeric Unit (Western Carpathians)." Geologica Carpathica 69, no. 5 (2018): 483–97. http://dx.doi.org/10.1515/geoca-2018-0028.

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Abstract The S-type accessory mineral assemblage of zircon, monazite-(Ce), fluorapatite and tourmaline in the cupolas of Permian granites of the Gemeric Unit underwent compositional changes and increased variability and volume due to intensive volatile flux. The extended S-type accessory mineral assemblage in the apical parts of the granite resulted in the formation of rare-metal granites from in-situ differentiation and includes abundant tourmaline, zircon, fluorapatite, monazite-(Ce), Nb–Ta–W minerals (Nb–Ta rutile, ferrocolumbite, manganocolumbite, ixiolite, Nb–Ta ferberite, hübnerite), cas
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Collins, William J., Hui-Qing Huang, Peter Bowden, and A. I. S. Kemp. "Repeated S–I–A-type granite trilogy in the Lachlan Orogen and geochemical contrasts with A-type granites in Nigeria: implications for petrogenesis and tectonic discrimination." Geological Society, London, Special Publications 491, no. 1 (2019): 53–76. http://dx.doi.org/10.1144/sp491-2018-159.

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AbstractThe classical S–I–A-type granites from the Lachlan Orogen, SE Australia, formed as a tectonic end-member of the accretionary orogenic spectrum, the Paleozoic Tasmanides. The sequence of S- to I- to A-type granite is repeated at least three times. All the granites are syn-extensional, formed in a dominantly back-arc setting behind a single, stepwise-retreating arc system between 530 and 230 Ma. Peralkaline granites are rare. Systematic S–I–A progressions indicate the progressive dilution of an old crustal component as magmatism evolved from arc (S-type) to proximal back-arc (I-type) to
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Imeokparia, E. G. "Geochemical evolution of the Jarawa Younger Granite complex and its related mineralization, northern Nigeria." Geological Magazine 122, no. 2 (1985): 163–73. http://dx.doi.org/10.1017/s0016756800031071.

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AbstractThe Jarawa Younger Granite complex is composed of high silica alkali granites that were emplaced 161 Ma ago. The granites are characterized by high contents of Rb, Li, F, Sn, Nb, W above normal low-Ca granitic rocks and have typical S-type characteristics that are indicative of a substantial component of crustal melt.Mineralization in the complex is associated with the biotite granite which was emplaced as a sheet-like body at relatively shallow depth and occurs as disseminations and as greisen lodes and veins.Chemical studies of the granites have shown that the biotite granite represe
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Steiner, Benedikt M., Gavyn K. Rollinson, and John M. Condron. "An Exploration Study of the Kagenfels and Natzwiller Granites, Northern Vosges Mountains, France: A Combined Approach of Stream Sediment Geochemistry and Automated Mineralogy." Minerals 9, no. 12 (2019): 750. http://dx.doi.org/10.3390/min9120750.

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Following a regional reconnaissance stream sediment survey that was carried out in the northern Vosges Mountains in 1983, a total of 20 stream sediment samples were collected with the aim of assessing the regional prospectivity for the granite-hosted base and rare metal mineralisation of the northern Vosges magmatic suite near Schirmeck. A particular focus of the investigation was the suspected presence of W, Nb and Ta geochemical occurrences in S-type (Kagenfels) and I-S-type (Natzwiller) granites outlined in public domain data. Multi-element geochemical assays revealed the presence of fault-
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Dissertations / Theses on the topic "S-type granites"

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Villaros, Arnaud. "Petrogenesis of S-type granites : the example of the Cape Granite Suite." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4015.

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Thesis (PhD (Earth Sciences))--University of Stellenbosch, 2010.<br>ENGLISH SUMMARY: S-type granite intrusions are extremely common in the continental crust and form from the partial melting of metasediments. Compositions of S-type granite range from leucogranite to granodiorite and have trace element contents that globally increase with increasing maficity (Fe + Mg). Models proposed for the formation of S-type granite do not answer satisfactorily all petrological and compositional requirements. In this study, S-type granite of the Cape Granite Suite (CGS), South Africa is used to discri
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Spicer, Esme M. (Esme Marelien). "Apatite, allanite, titanite and monazite characteristics in S-, I- A-type Cape Granites." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52120.

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Thesis (MSc)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: This study focussed on the comparison of accessory mineral chemistry and paragenesis in the S-, I- and A-type granites of the Cape Granite Suite. The objective of the study was to use differences in accessory mineral chemistry and petrography to give insight in the evolution, recycling and formation of continental crust as affected by the Cape Granite Suite. Because of the high partition coefficients of the REE and trace elements into accessory minerals these minerals play an important role to explain granite evolution. T
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Pett, Teresa K. "Garnetites of the Cardigan Pluton - Evidence for Restite and Implications for Source Rock Compositions." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/1099.

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The Cardigan pluton, located in the southern half of New Hampshire, is a strongly peraluminous, S-type granite which is granodioritic in composition. It is inferred to have been emplaced rapidly, thrust up along west-verging nappes during the Acadian orogeny. Distinctive pods, consisting of 50 to 70 percent modal garnet, are found throughout the pluton in assemblages of garnet + sillimanite + biotite + plagioclase + quartz. These garnetite rocks present an intriguing case for restite. Textural features of the garnetite rocks, such as fibrolitic sillimanite mats and flat, unzoned major and trac
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Hutton, Laurie James. "Petrogenesis of I- and S-type Granites in the Cape River - Lolworth area, northeastern Queensland - Their contribution to an understanding of the Early Palaeozoic Geological History of northeastern Queensland." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15858/.

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The geological history of the Early Palaeozoic in eastern Australia is not known precisely. The eastern margin of the outcropping Precambrian Craton 'Tasman Line' is poorly understood. The Thomson Orogen, which underlies much of eastern Queensland, lies to the east of the Tasman Line. Basement to the Tasman Orogenic Zone is poorly understood, but knowledge of this basement is critical to our understanding to the processes that formed the eastern margin of the Precambrian craton. The Lolworth-Ravenswood Province lies to the east of the Tasman Line in northeast Queensland. A study of basement
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Ngulube, Alimasi Dieudonné. "La pegmatite de Manono (Zaïre) et sa place dans la métallogénie kibarienne : pétrochimie et paléogéodynamique." Nancy 1, 1994. http://www.theses.fr/1994NAN10351.

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Le dépôt pegmatitique géant de Manono (Shaba, Zaïre), mis en place dans des micaschistes redressés à intercalations quartzitiques et des roches hypovolcaniques ou volcaniques, exhibe une zonation, caractérisée par des zones marginales aplitiques ou grenues, métallifères (sn, ta,), hypersodiques et micacées, et des zones centrales grossières, hyperpotassiques et enrichies en li. Une telle zonation est considérée comme consécutive à un lessivage préférentiel de k, li, si dans un fluide supercritique, généré par une ébullition résurgente et récurrente d'un magma pegmatitique enrichie en volatils.
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Ramphaka, Priscilla L. "The origin of rhythmic magmatic layering in coarse-grained porphyritic S-type granite of the Peninsula pluton, Cape Granite Suite, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85741.

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Thesis (MSc)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Rhythmic magmatic layering in granites is an intriguing feature that has been reported from plutons with contrasting chemical compositions from a wide range of tectonic settings. Layered granites are rare and occur in association with volumetrically dominant non-layered rocks having similar composition. Understanding the origin of such layering in granites, particularly from well exposed outcrops, may give crucial insights on the physical-chemical conditions and processes (such as fractional crystallization, size and composition
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Ng, Wai Pan. "Petrogenesis, U-Pb zircon geochronology and tectonic evolution of the Malaysian granite provinces in the Southeast Asian tin belt." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:0f2f3942-6d64-4a17-b194-08672107aeb2.

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The Malaysian granitoids form the backbone of the Malay Peninsula and have long been recognized as composed of two distinct granitic provinces separated by the Bentong-Raub suture zone: <table><ol><li>Early Permian to Late Triassic Eastern Province (Indochina – East Malaya) with mainly “I-type” hornblende-bearing granitoids, associated with Cu-Au deposits, and subordinate hornblende-free pluton roof-zones hosting limited Sn-W deposits; and</li> <li>Late Triassic Main Range Province, western Malaysia (Sibumasu) with mainly “S-type” hornblende-free granitoids, associated with Sn-W deposits, and
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Yan, Chaolei. "The Neoproterozoic tectonic evolution of the western Jiagenen Orogenic Belt and its Early Paleozoic-Mesozoic tectonic reworking." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2041/document.

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La chaîne de collision d'âge néoprotérozoïque de Jiangnan, orientée NE-SW, marque la limite entre les blocs duYangtze et de Cathaysia. Son évolution tectonique reste encore débattue. Une des questions les plus controversées est l'âge de la collision entre les deux blocs. Afin d'acquérir une meilleure compréhension de ce problème, nous avons collecté des échantillons dans les couches sédimentaires situées au-dessus et au-dessous de la discordance dans le but de comparer les spectres d'âge des zircons détritiques et aussi de les confronter à ceux décrits dans les séries néoprotérozoïques des rég
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Lavaure, Stéphanie. "Origines des enrichissements en biotite dans les granites de type S : évidences pétrogéochimiques et pétrogéniques du granite de Wuluma, Australie." Thèse, 2012. http://constellation.uqac.ca/2566/1/030298753.pdf.

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De nombreux travaux expérimentaux ont été effectués, au cours des dernières décennies pour recréer des magmas anatectiques felsiques à partir de la fusion par déshydratation de différents types de roches tels que des métasédiments ou des roches ignées. Cependant, les granites naturels de type S sont beaucoup plus enrichis en fer et magnésium que tous les liquides felsiques qui ont pu être obtenus expérimentalement. De plus, des analyses de liquides felsiques en inclusion dans les minéraux métamorphiques ont montré les mêmes résultats que les travaux expérimentaux. Récemment, Pentrainement de p
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Books on the topic "S-type granites"

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Hutton Symposium on the Origin of Granites and Related Rocks (2nd 1991 Australian Academy of Science). Second Hutton Symposium on Granites and Related Rocks, Canberra 1991: Enclaves in the S-type Cowra Granodiorite : excursion guide, 25 September 1991. Bureau of Mineral Resources, Geology and Geophysics, 1992.

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Book chapters on the topic "S-type granites"

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Wyborn, D., B. W. Chappell, and R. M. Johnston. "Three S-Type Volcanic Suites From the Lachlan Fold Belt, Southeast Australia." In 1989, Granites and Rhyolites. American Geophysical Union, 2013. http://dx.doi.org/10.1002/9781118782057.ch12.

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Huang, W. L., and P. J. Wyllie. "Phase Relationships of S-Type Granite With H20 to 35 kbar: Muscovite Granite From Harney Peak, South Dakota." In 1989, Granites and Rhyolites. American Geophysical Union, 2013. http://dx.doi.org/10.1002/9781118782057.ch23.

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A. El Bahariya, Gaafar. "An Overview on the Classification and Tectonic Setting of Neoproterozoic Granites of the Nubian Shield, Eastern Desert, Egypt." In Geochemistry. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95904.

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Granites constitute the main rock components of the Earth’s continental crust, which suggested to be formed in variable geodynamics environments. The different types of granitic rocks, their compositional characteristics, tectonic settings and magma sources are outlined. Mineralogical classification of granites includes four rock types: tonalites, granodiorites, granite (monzogranite and syenogranites) and alkali-feldspar granites. Alphabetical classification subdivided granites into: I-type, S-type, A-type and M-type granites. Moreover, formation of granitic magmas requires distinctive geodynamic settings such as: volcanic arc granite (Cordilleran); collision-related granites (leucogranites); intra-plate and ocean ridge granites. The Eastern Desert of Egypt (ED) forms the northern part of Nubian Shield. Both older and younger granites are widely exposed in the ED. Old granites (OG) comprise tonalites and granodiorites of syn- to late-orogenic granitoid assemblages. They are calcalkaline, I-type, metaluminous and display island arc tectonic setting. Younger granites (YG) on the other hand, include granites, alkali-feldspar granites and minor granodiorites. They are of I- and A-type granites and of post-orogenic to anorogenic tectonic settings. The majority of the YG are alkaline, A-type granite and of within-plate tectonic setting (WPG). The A-type granites are subdivided into: A2-type postorogenic granites and A1-type anorogenic granites. Granite magma genesis involves: (a) fractional crystallization of mafic mantle-derived magmas; (b) anatexis or assimilation of old, upper crustal rocks (c) re - melting of juvenile mafic mantle – derived rocks underplating the continental crust. Generally, older I-type granitoids were interpreted to result from melting of mafic crust and dated at approximately 760–650 Ma, whereas younger granites suggested to be formed as a result of partial melting of a juvenile Neoproterozoic mantle source. Moreover, they formed from anatectic melts of various crustal sources that emplaced between 600 and 475 Ma.
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Chappell, B. W., and A. J. R. White. "I- and S-type granites in the Lachlan Fold Belt." In Geological Society of America Special Papers. Geological Society of America, 1992. http://dx.doi.org/10.1130/spe272-p1.

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Pankhurst, R. J., C. W. Rapela, and C. M. Fanning. "Age and origin of coeval TTG, I- and S-type granites in the Famatinian belt of NW Argentina." In The Fourth Hutton Symposium on the Origin of Granites and Related Rocks. Geological Society of America, 2000. http://dx.doi.org/10.1130/0-8137-2350-7.151.

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Shimura, Toshiaki, Masaaki Owada, Yasuhito Osanai, Masayuki Komatsu, and Hiroo Kagami. "Variety and genesis of the pyroxene-bearing S- and I-type granitoids from the Hidaka Metamorphic Belt, Hokkaido, northern Japan." In The Fifth Hutton Symposium on the Origin of Granites and Related Rocks. Geological Society of America, 2004. http://dx.doi.org/10.1130/0-8137-2389-2.161.

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Sawka, W. N., M. T. Heizler, R. W. Kistler, and B. W. Chappell. "Geochemistry of highly fractionated I- and S-type granites from the tin-tungsten province of western Tasmania." In Geological Society of America Special Papers. Geological Society of America, 1990. http://dx.doi.org/10.1130/spe246-p161.

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Conference papers on the topic "S-type granites"

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Zhu, Yu, Shao-Cong Lai, Jiangfeng Qin, Renzhi Zhu, Fangyi Zhang, and Zezhong Zhang. "Petrogenesis and Geochemical Diversity of Late Mesoproterozoic S-Type Granites in the Western Yangtze Block, South China: Co-entrainment of Peritectic Selective Phases and Accessory Minerals." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.3221.

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Xu, Xiaofei, Longlong Gou, Yunpeng Dong, et al. "Geochemical Characteristics and Tectonic Implications of ca. 1.95 Ga Pure Sediment-Derived S-Type Granite in the Helanshan Complex, North China Craton." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.2951.

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Keaton, Jeffrey R., Luther H. Boudra, and Eleanor L. Huggins. "Enhancing Pipeline Project Management With Refined Rock Excavation Forecasting." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64306.

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Accurate rock-excavation forecasting is one of the geotechnical risk factors that challenge successful management of cross-country pipeline projects. Pipeline construction personnel with local experience typically estimate rock excavation requirements for economic feasibility, permitting, and contracts. Where the excavation is paid on a “classified” basis, construction bid and contract documents typically call for excavation of “ditch” rock to be paid per lineal foot, whereas “area” or right-of-way (ROW) grading rock is paid per cubic yard. This paper briefly reviews the desktop procedure for
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