Conditions of pinnacle formation and glass hydration in cooling ignimbrite sheets from H and O isotope systematics at Crater Lake and the Valley of Ten Thousand Smokes

Hudak, Michael R.; Bindeman, Ilya N.

doi:10.1016/j.epsl.2018.07.032

Cited by 25 publications

(12 citation statements)

References 46 publications

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“…Meteoric waters infiltrate and modify the composition of volcanic glass following eruptive emplacement on timescales of <10–10 4 years (Cassel & Breeker, 2017; Giachetti et al., 2020; Nolan & Bindeman, 2013; Seligman et al., 2018). The meteoric water modifies the primary magmatic hydrogen isotope composition initially preserved in volcanic glass because meteoric waters are enriched in D relative to H, with the ratio controlled by precipitation, temperature, latitude, and altitude (e.g., Cassel et al., 2009; Giachetti et al., 2020, 2015; Hudak & Bindeman, 2018; Ingraham & Taylor, 1991; Jackson et al., 2019; Seligman et al., 2016). Meteoric water and groundwater in the vicinity of Long Valley have δ D in the range of −90‰ to −110‰, values enriched in H relative to D as expected on the rain shadowed, high‐altitude eastern flank of the Sierra Nevada (Friedman et al., 2002; Ingraham & Taylor, 1991).…”

Section: Discussionmentioning

confidence: 99%

“…Meteoric waters infiltrate and modify the composition of volcanic glass following eruptive emplacement on timescales of <10-10 4 years (Cassel & Breeker, 2017;Giachetti et al, 2020;Nolan & Bindeman, 2013;Seligman et al, 2018). The meteoric water modifies the primary magmatic hydrogen isotope composition initially preserved in volcanic glass because meteoric waters are enriched in D relative to H, with the ratio controlled by precipitation, temperature, latitude, and altitude (e.g., Cassel et al, 2009;Giachetti et al, 2020Giachetti et al, , 2015Hudak & Bindeman, 2018;Ingraham & Taylor, 1991;Jackson et al, 2019;Seligman et al, 2016). Meteoric water and groundwater in the vicinity of Long Valley have δD in the range of −90‰ to −110‰, Newman et al (1988); gray triangles are Mono Craters from J. D. Barnes et al (2014a); gray squares are Mono-Inyo Craters from Taylor et al (1983); gray diamonds are Medicine Lake from Taylor et al (1983); white diamonds are Medicine Lake from Giachetti et al (2020); white circles and triangles are Chaitén and Cordón Caulle, respectively, from Castro et al (2014); and white squares are Mazama from Mandeville et al (2009).…”

Section: Meteoric Rehydrationmentioning

confidence: 99%

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Hydrogen Isotope Composition of a Large Silicic Magma Reservoir Preserved in Quartz‐Hosted Glass Inclusions of the Bishop Tuff Plinian Eruption

Befus

Walowski

Hervig

et al. 2020

Geochem Geophys Geosyst

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The crystal cargo of a magma provides an in situ record of magmatic volatiles and degassing. The stability of hydrous minerals, such as mica and amphibole, is dictated by the presence and fugacity of magmatic water. Minerals may also entrap small parcels of magma during crystal growth, preserved as glass inclusions. Following entrapment, the crystal host provides a protective jacket that ideally preserves the compositional integrity of the original melt during quenching to glass during eruption and emplacement. Major and trace element studies of such inclusions have transformed our understanding of preeruptive magmatic processes, having been used to explore crystallization processes, conduit ascent rates, and degassing (e.g., Blundy &

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Section: Discussionmentioning

confidence: 99%

Section: Meteoric Rehydrationmentioning

confidence: 99%

Hydrogen Isotope Composition of a Large Silicic Magma Reservoir Preserved in Quartz‐Hosted Glass Inclusions of the Bishop Tuff Plinian Eruption

Befus

Walowski

Hervig

et al. 2020

Geochem Geophys Geosyst

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“…The H 2 O contents in both the Karymshina samples and those from other volcanoes are similar and appropriate for fresh amphiboles and biotites, suggesting that this depletion is not due to chlorite alteration (a mineral with 12 wt% H 2 O which easily exchanges with surface water). The large range of δD values, especially in biotites, likely reflects incipient exchange of D and H after intracaldera ignimbrite emplacement into the shallow crust with meteoric waters, and could also be due to post-eruption alteration of the cooling ignimbrite deposits (e.g., Hudak and Bindeman, 2008;Seligman et al, 2018). It is also possible that some of the low δD values are attributable to hydrothermal alteration of the magma source rock prior to genesis and eruption of the 1.78 Ma magma, and reflect lower-δD subglacial meteoric water values as glaciation in the northern hemisphere started at 2-2.6 Ma.…”

Section: Hydrogen Isotopes Of Amphiboles and Biotitesmentioning

confidence: 99%

Isotopic and Petrologic Investigation, and a Thermomechanical Model of Genesis of Large-Volume Rhyolites in Arc Environments: Karymshina Volcanic Complex, Kamchatka, Russia

et al. 2019

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The Kamchatka Peninsula of eastern Russia is currently one of the most volcanically active areas on Earth where a combination of >8 cm/yr subduction convergence rate and thick continental crust generates large silicic magma chambers, reflected by abundant large calderas and caldera complexes. This study examines the largest center of silicic 4-0.5 Ma Karymshina Volcanic Complex, which includes the 25 × 15 km Karymshina caldera, the largest in Kamchatka. A series of rhyolitic tuff eruptions at 4 Ma were followed by the main eruption at 1.78 Ma and produced an estimated 800 km 3 of rhyolitic ignimbrites followed by high-silica rhyolitic post-caldera extrusions. The postcaldera domes trace the 1.78 Ma right fracture and form a continuous compositional series with ignimbrites. We here present results of a geologic, petrologic, and isotopic study of the Karymshina eruptive complex, and present new Ar-Ar ages, and isotopic values of rocks for the oldest pre-1.78 Ma caldera ignimbrites and intrusions, which include a diversity of compositions from basalts to rhyolites. Temporal trends in δ 18 O, 87 Sr/ 86 Sr, and 144 Nd/ 143 Nd indicate values comparable to neighboring volcanoes, increase in homogeneity, and temporal increase in mantle-derived Sr and Nd with increasing differentiation over the last 4 million years. Data are consistent with a batholithic scale magma chamber formed by primarily fractional crystallization of mantle derived composition and assimilation of Cretaceous and younger crust, driven by basaltic volcanism and mantle delaminations. All rocks have 35-45% quartz, plagioclase, biotite, and amphibole phenocrysts. Rhyolite-MELTS crystallization models favor shallow (2 kbar) differentiation conditions and varying quantities of assimilated amphibolite partial melt and hydrothermally-altered silicic rock. Thermomechanical modeling with a typical 0.001 km 3 /yr eruption rate of hydrous basalt into a 38 km Kamchatkan arc crust produces two magma bodies, one near the Moho and the other engulfing the entire section of upper crust. Rising basalts are trapped in the lower portion of an upper crustal magma body, which exists in a partially molten to solid state. Differentiation products of basalt periodically mix with the resident magma diluting its crustal isotopic signatures. Bindeman et al. Isotopic and Thermomechanical Model of Karymshina Caldera At the end of the magmatism crust is thickened by 8 km. Thermomechanical modeling show that the most likely way to generate large spikes of rhyolitic magmatism is through delamination of cumulates and mantle lithosphere after many millions of years of crustal thickening. The paper also presents a chemical dataset for Pacific ashes from ODDP 882 and 883 and compares them to Karymshina ignimbrites and two other Pleistocene calderas studied by us in earlier works.

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“…On the experimental side researchers have developed oxygen isotopic proxies for carbonate in paleosols (Quade et al, 2007) and paleolake sediments (Davis et al, 2009), fossil teeth (Kohn et al, 2002), clay minerals (Chamberlain et al, 1999), and chert (Ibarra et al, 2021). For hydrogen isotopes we have the additional proxies such as hydrated volcanic glasses (Mulch et al, 2008;Cassel et al, 2009;Hudak and Bindeman, 2018), clay minerals (Capuano, 1992;Delgado and Reyes, 1996;Mulch et al, 2006), plant leaf waxes (Hren et al, 2010) and metamorphic micas (Mulch et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Triple Oxygen Isotope Paleoaltimetry of Crystalline Rocks

et al. 2021

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Triple oxygen isotopes of hydrothermally altered minerals from crystalline rocks can be used to determine past elevations of mountain ranges. This method uses all three isotopes of oxygen (16O, 17O, and 18O) to create arrays that can be extrapolated back to the meteoric water line. One advantage of this technique is that it relies only on oxygen isotopes in contrast to previous studies that use oxygen and hydrogen isotopes to determine the isotopic composition of meteoric waters. Our analysis suggests that hydrogen isotopes may exchange with ambient fluids. Triple oxygen isotopes provide an independent check on the reliability of hydrogen isotope studies.

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Conditions of pinnacle formation and glass hydration in cooling ignimbrite sheets from H and O isotope systematics at Crater Lake and the Valley of Ten Thousand Smokes

Cited by 25 publications

References 46 publications

Hydrogen Isotope Composition of a Large Silicic Magma Reservoir Preserved in Quartz‐Hosted Glass Inclusions of the Bishop Tuff Plinian Eruption

Hydrogen Isotope Composition of a Large Silicic Magma Reservoir Preserved in Quartz‐Hosted Glass Inclusions of the Bishop Tuff Plinian Eruption

Isotopic and Petrologic Investigation, and a Thermomechanical Model of Genesis of Large-Volume Rhyolites in Arc Environments: Karymshina Volcanic Complex, Kamchatka, Russia

Triple Oxygen Isotope Paleoaltimetry of Crystalline Rocks

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