Jadeitite formed during subduction: In situ zircon geochronology constraints from two different tectonic events within the Guatemala Suture Zone

Abstract

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Early Paleozoic jadeitites in Japan: An overview

“…Ascending aqueous fluids in a mantle wedge are also supported by a vertical wall-like low-V zones in the forearc region visualized by a high-resolution seismic tomography of NE Japan ('Water Wall': Zhao et al, 2015). The jadeiteforming aqueous fluids transfer various elements from subduction slab into the transitional mélange and overlying mantle wedge (e.g., Flores et al, 2013;Harlow et al, 2016); these fluids also promote mass circulation within a subduction channel and mantle wedge. Chemical differentiation and transportation of the fluids caused by jadeitite formation are crucial topics requiring further research.…”

“…Research interest in jadeitite has not only included petrotectonics, geochronology, and geochemistry (e.g., Harlow et al, 2004;Brueckner et al, 2009;Fu et al, 2010;Simons et al, 2010;Sorensen et al, 2010;Yui et al, 2012; Flores et al, 2013;Harlow et al, 2016), but current attention also reflects their significance regarding geochemical components of arc magmas (e.g., Marschall and Schumacher, 2012). Studies over the last two decades have interpreted jadeitite either as the direct aqueous fluid precipitate from a subduction channel into the overlying mantle wedge or as the metasomatic replacement by such fluids of oceanic plagiogranite, greywacke, or metabasite along the channel margin (cf.…”

Jadeitite (jadeite jade) from Japan: History, characteristics, and perspectives

“…Research interest in jadeitite has not only included petrotectonics, geochronology, and geochemistry (e.g., Harlow et al, 2004;Brueckner et al, 2009;Fu et al, 2010;Simons et al, 2010;Sorensen et al, 2010;Yui et al, 2012;Flores et al, 2013;Harlow et al, 2015Harlow et al, , 2016, but current attention also reflects their significance with respect to the geochemical components of arc magmas (e.g., Marschall and Schumacher, 2012). Studies over the last two decades have interpreted jadeitite either as the direct aqueous fluid precipitate from subduction channel into the overlying mantle wedge or as the metasomatic replacement by such fluids of oceanic plagiogranite, graywacke, or metabasite along the channel margin (cf.…”

“…The jadeite-forming aqueous fluids transfer various elements from subduction slab into the transitional mé-lange and overlying mantle wedge (e.g., Flores et al, 2013;Harlow et al, 2016). The fluids promote mass circulation within a subduction channel and a mantle wedge.…”

“…Since a comprehensive review by Harlow and Sorensen (2005), several update reviews (Harlow et al, 2007Tsujimori and Harlow, 2012;Shi et al, 2012;Flores et al, 2013;Franz et al, 2014;Harlow et al, 2014Harlow et al, , 2015Harlow et al, , 2016 and one special issue related to jadeitite as well as numerous research papers have been published. Gemological perspectives on Japanese jadeitite were also summarized recently by Abduriyim et al (2017).…”