Geochemistry of garnet in pegmatites from the Boroujerd Intrusive Complex, Sanandaj-Sirjan Zone, western Iran: implications for the origin of pegmatite melts

Javanmard, Somayeh Rahmani; Tahmasbi, Zahra; Ding, Xing; Khalaji, Ahmad Ahmadi; Hetherington, Callum J.

doi:10.1007/s00710-018-0591-x

Cited by 17 publications

(6 citation statements)

References 82 publications

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“…Garnets are often highly chemically zoned throughout each grain, and the zonation can be used to understand the changing environmental conditions, such as temperature and pressure, over time (Javanmard et al, 2018;Yang et al, 2013). Although 220 there is debate about the complexity and style of zonation within garnet samples, it is not within the scope of this paper to Classically, zonation for garnets is measured concentrically from the core to rim of the grain (Javanmard et al, 2018;Yang et al, 2013). Polycrystalline garnets, though less common, can record the changing mechanisms and chemical conditions by combining 225 2 to 30+ crystallites within one garnet grain (Whitney and Seaton, 2010).…”

Section: Zonationmentioning

confidence: 99%

“…These samples primarily originate from the EarthChem and MetPetDB repositories; however, some of the compiled peerreviewed literature label specific longitude and latitude for each analysis, which are also included in this map (Alizai et al, 2016;Ghosh et al, 2017;Herbosch et al, 2016;Inglis et al, 2017;Javanmard et al, 2018;Kotkova and Harley, 2010;Korinevsky, 2015;Krippner et al, 2016;Manton et al, 2017;Parthasarathy et al, 1999;Patranabis-Deb, Schieber, and Basu, 2008;Schönig et al, 2018;Sieck et al, 2019;Suwa et al, 1996). Thus, despite the bias of samples from North America, the distribution of 535 sample localities around the world is diverse based on the reported longitude and latitude data.…”

Section: Locality Information 475mentioning

confidence: 99%

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The secret life of garnets: A comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

Chiama

Gabor

Lupini

et al. 2023

Preprint

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Abstract. Integrating mineralogy with data science is critical to modernizing Earth materials research and its applications to geosciences. Data were compiled on 95,588 garnet sample analyses from a variety of sources, ranging from large repositories (EarthChem, RRUFF, MetPetDB) to individual peer-reviewed literature. An important feature is the inclusion of mineralogical “dark data” from papers published prior to 1990. Garnets are commonly used as indicators of formation environments, which directly correlate with their geochemical properties; thus, they are an ideal subject for the creation of an extensive data resource that incorporates composition, locality information, paragenetic mode, age, temperature, pressure, and geochemistry. For the data extracted from existing databases, we increased the resolution of several key aspects, including petrogenetic and paragenetic attributes, which we extended from generic material type (e.g., igneous, metamorphic) to more specific rock type names (e.g., diorite, eclogite, skarn) and locality information, increasing specificity by examining the continent, country, area, geological context, longitude, and latitude. Likewise, we implemented a broad silica confidence interval to exclude samples of questionable composition from further analysis. This comprehensive dataset of garnet information is an open-access resource available in the Evolutionary System of Mineralogy Database (ESMD) for future mineralogical studies, paving the way for characterizing correlations between chemical composition and paragenesis through natural kinds clustering. We encourage scientists to contribute their own unpublished and unarchived analyses to the growing data repositories of mineralogical information that are increasingly valuable for advancing scientific discovery.

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Section: Zonationmentioning

confidence: 99%

Section: Locality Information 475mentioning

confidence: 99%

The secret life of garnets: A comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

Chiama

Gabor

Lupini

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Section: Zonationmentioning

confidence: 99%

“…Classically, zonation for garnets is measured concentrically from the core to rim of the grain (Javanmard et al, 2018;Yang et al, 2013). Polycrystalline garnets, though less common, can record the changing mechanisms and chemical conditions by combining 2 to 30 plus crystallites within one garnet grain (Whitney and Seaton, 2010).…”

Section: Zonationmentioning

confidence: 99%

“…Samples originate from every major continent as well as Greenland, Iceland, New Zealand, and a handful of Pacific islands. These samples primarily originate from the EarthChem and MetPetDB repositories; however, some of the compiled peer-reviewed literature label specific longitude and latitude for each analysis, which are also included in this map (Alizai et al, 2016;Ghosh et al, 2017;Inglis et al, 2017;Javanmard et al, 2018;Kotková and Harley, 2010;Korinevsky, 2015;Krippner et al, 2016;Manton et al, 2017;Parthasarathy et al, 1999;Patranabis-Deb et al, 2009;Schönig et al, 2018;Sieck et al, 2019;Suwa et al, 1996). Thus, despite the compilation of samples from solely English literature and repositories and the bias of samples from North America, the distribution of sample localities around the world is diverse based on the reported longitude and latitude data.…”

Section: Locality Informationmentioning

confidence: 99%

See 1 more Smart Citation

The secret life of garnets: a comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

Chiama,

Gabor,

Lupini

et al. 2023

Earth Syst. Sci. Data

View full text Add to dashboard Cite

Abstract. Integrating mineralogy with data science is critical to modernizing Earth materials research and its applications to geosciences. Data were compiled on 95 650 garnet sample analyses from a variety of sources, ranging from large repositories (EarthChem, RRUFF, MetPetDB) to individual peer-reviewed literature. An important feature is the inclusion of mineralogical “dark data” from papers published prior to 1990. Garnets are commonly used as indicators of formation environments, which directly correlate with their geochemical properties; thus, they are an ideal subject for the creation of an extensive data resource that incorporates composition, locality information, paragenetic mode, age, temperature, pressure, and geochemistry. For the data extracted from existing databases and literature, we increased the resolution of several key aspects, including petrogenetic and paragenetic attributes, which we extended from generic material type (e.g., igneous, metamorphic) to more specific rock-type names (e.g., diorite, eclogite, skarn) and locality information, increasing specificity by examining the continent, country, area, geological context, longitude, and latitude. Likewise, we utilized end-member and quality index calculations to help assess the garnet sample analysis quality. This comprehensive dataset of garnet information is an open-access resource available in the Evolutionary System of Mineralogy Database (ESMD) for future mineralogical studies, paving the way for characterizing correlations between chemical composition and paragenesis through natural kind clustering (Chiama et al., 2022; https://doi.org/10.48484/camh-xy98). We encourage scientists to contribute their own unpublished and unarchived analyses to the growing data repositories of mineralogical information that are increasingly valuable for advancing scientific discovery.

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P–T–t path of the Boroujerd Complex, north‐west Sanandaj–Sirjan Zone, western Iran: Insights from phase equilibrium modelling and thermobarometry

Javanmard¹,

Verdecchia

Yakymchuk

et al. 2021

Geological Journal

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Handling Editor: M. Santosh Variations in the pressures and temperatures of metamorphism reflect the complexity of collisional orogenic systems. In the north-west Sanandaj-Sirjan Zone of western Iran, migmatites in the Boroujerd area record earlier dynamothermal metamorphism followed by the development of a contact metamorphic aureole induced by the Jurassic Boroujerd Batholith. Integrated micro-textural observations, mineral compositions, and the results of phase equilibrium modelling indicate that peak metamorphic temperatures reached 640-660 C in andalusite schists and~700 C in cordierite-sillimanite migmatites. The pressure does not exceed 3.5 kbar, implying a maximum depth of~13 km. A hairpin clockwise P-T path in the Boroujerd region was inferred from mineral relations (e.g., replacement of andalusite 1 by sillimanite in the migmatites in the heating stage, which was followed by a retrograde episode with growth of andalusite 2 ) and P-T pseudosections. Metamorphism of the Boroujerd area was coeval with voluminous intermediate-mafic magmatism, which provided the heat necessary for partial melting. This study demonstrates that metamorphic sequences of the north-west Sanandaj-Sirjan Zone developed under similar metamorphic conditions in the Lower to Middle Jurassic and record an extensional back-arc setting related to the subduction of Neo-Tethys.

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Geochemistry of garnet in pegmatites from the Boroujerd Intrusive Complex, Sanandaj-Sirjan Zone, western Iran: implications for the origin of pegmatite melts

Cited by 17 publications

References 82 publications

The secret life of garnets: A comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

The secret life of garnets: A comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

The secret life of garnets: a comprehensive, standardized dataset of garnet geochemical analyses integrating localities and petrogenesis

P–T–t path of the Boroujerd Complex, north‐west Sanandaj–Sirjan Zone, western Iran: Insights from phase equilibrium modelling and thermobarometry

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