Derivation of Hawaiian rejuvenated magmas from deep carbonated mantle sources: A review of experimental and natural constraints

Borisova, Anastassia Y.; Tilhac, Romain

doi:10.1016/j.earscirev.2021.103819

Cited by 8 publications

(14 citation statements)

References 164 publications

(260 reference statements)

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“…First, metasomatised lithospheric mantle can be remobilised as lithospheric material is heated, from below by the plume and/or from within by rising melts [Chen and Frey, 1985;Gurriet, 1987]. This hypothesis is inconsistent with our results, as well as those of previous barometric and xenolith studies, which imply that rejuvenated-phase melts are generated within the asthenosphere and rise to the surface without significant modification within the lithosphere [Clague and Dalrymple, 1987;Garcia et al, 2010;Borisova and Tilhac, 2021]. Second, as the plume spreads out beneath the plate it may entrain and melt compositionally-distinct background mantle [Hofmann and Farnetani, 2013].…”

Section: Generating the Rejuvenated Phasecontrasting

confidence: 84%

“…Third, the plume may include multiple lithologies, specifically a more enriched lithology in the plume interior relative to its margins. Possible additional components include: fusible material such as pyroxenite or carbon-rich peridotite in the conduit's interior [Ballmer et al, 2011;Garcia et al, 2016;Borisova and Tilhac, 2021]; or an isotopically-depleted lithology on its exterior [Hofmann and Farnetani, 2013]. The similarity in our T p estimates for each phase, along with our greater estimated equilibration depths for enriched, rejuvenated-phase melts, is consistent with this third mechanism.…”

Section: Generating the Rejuvenated Phasesupporting

confidence: 59%

“…The rejuvenated phase begins ∼ 0.6-2 Ma after the post-shield phase ends and has been an established part of the Hawai'ian volcanic cycle since at least 12.5 Ma [Harrison et al, 2020]. Rejuvenatedphase lavas have consistently higher Nb/Zr and 143 Nd/ 144 Nd ratios than shield or post-shield lavas, an observation that has been used by multiple authors to suggest that the source for rejuvenatedphase samples is compositionally distinct from the other phases [Figure 5m-x; e.g., Ballmer et al, 2011;Hofmann and Farnetani, 2013;Garcia et al, 2016;Borisova and Tilhac, 2021]. Mechanisms that attempt to explain the generation of the rejuvenated phase should therefore account for an eruptive hiatus and a change in source composition.…”

Section: Generating the Rejuvenated Phasementioning

confidence: 99%

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meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

McNab¹,

Ball²

2023

Preprint

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Quantifying the depths and temperatures from which igneous rocks are derived is an important step in understanding volcanic, magmatic and mantle processes. We present meltPT, a Python package that allows users to apply twelve published whole-rock thermobarometers within a consistent framework, as well as combine thermobarometric results and geothermal models to estimate mantle potential temperatures. We apply meltPT to basaltic rocks from mid-ocean ridges and the Hawai'ian Islands. We find mid-ocean ridge basalts equilibrate between 1-2 GPa and 1275-1475 oC, corresponding to an ambient mantle potential temperature of ~1400 oC. We estimate that the Hawai'ian plume has an excess temperature of ~150 oC. Hawai'ian melt-equilibration depths increase from 1-3 GPa to 2.5-5 GPa through each island's life cycle. Our results indicate that multiple lithologies are present within the plume, and that transient plume reconfiguration in response to changing plate velocity is a viable mechanism for generating Hawai'i's two geochemically distinct plume tracks.

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Section: Generating the Rejuvenated Phasecontrasting

confidence: 84%

Section: Generating the Rejuvenated Phasesupporting

confidence: 59%

Section: Generating the Rejuvenated Phasementioning

confidence: 99%

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meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

McNab¹,

Ball²

2023

Preprint

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“…Silica under‐saturated alkali lavas could be explained by involvement of CO 2 in the mantle source (Mallik & Dasgupta, 2012, 2013). Several studies have indicated that CO 2 played an important role in the origin of Hawaiian lavas (Borisova & Tilhac, 2021; Dixon et al., 2008; Huang et al., 2009, 2011; Sisson et al., 2009). Tucker et al.…”

Section: Introductionmentioning

confidence: 99%

“…Silica under-saturated alkali lavas could be explained by involvement of CO 2 in the mantle source (Mallik & Dasgupta, 2012. Several studies have indicated that CO 2 played an important role in the origin of Hawaiian lavas (Borisova & Tilhac, 2021;Dixon et al, 2008;Huang et al, 2009Huang et al, , 2011Sisson et al, 2009). Tucker et al (2019) showed that the mantle sources of Hawaiian shield stage lavas contain 380-480 ppm CO 2 based on measurement of olivine hosted melt inclusions, while the source CO 2 contents of rejuvenated lavas were not constrained.…”

mentioning

confidence: 99%

CO₂‐Rich Rejuvenated Stage Lavas on Hawaiian Islands

Zhang

Wang

Huang

et al. 2022

Geochem Geophys Geosyst

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Sedimentary carbonates are sent to the deep mantle if they are not completely destroyed at subduction zones, and subducted carbonates may contribute to plume volcanism. To better constrain the role of recycled carbonates in Hawaiian volcanism, we report high‐precision olivine and whole‐rock geochemical compositions of shield and rejuvenated stage lavas from Kauai, Oahu and Maui Islands. The studied rejuvenated stage whole‐rocks have low SiO2 and high CaO concentrations, and are depleted in high field strength elements, such as, Nb and Zr, consistent with a role of carbonated melt. Rejuvenated stage olivines have Ni abundance lower than and CaO and MnO contents similar to those of shield stage at a given Fo. The calculated partition coefficients of Ca (DnormalCnormalanormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{C}\mathrm{a}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$) and Mn (DnormalMnormalnnormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{M}\mathrm{n}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$) between olivine and shield melts are consistent with those of a dry melt system. However, the low DnormalCnormalanormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{C}\mathrm{a}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$ and DnormalMnormalnnormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{M}\mathrm{n}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$ for rejuvenated lavas can only be explained by a volatile‐rich melt system. Based on the observed DnormalCnormalanormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{C}\mathrm{a}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$ and DnormalMnormalnnormalOnormall−normalmnormalenormallnormalt ${D}_{\mathrm{M}\mathrm{n}}^{\mathrm{O}\mathrm{l}-\mathrm{m}\mathrm{e}\mathrm{l}\mathrm{t}}$ in rejuvenated lavas, and considering the effect of H2O, our modeling calculation shows that rejuvenated primary magmas contain up to ∼10 wt% CO2, indicating a CO2‐rich mantle source. Using olivine‐spinel aluminum exchange thermometry, we show that the rejuvenated primary magma temperatures are similar to those of shield stage. We posit that the CO2‐rich rejuvenated stage lavas with lower olivine Ni than those of shield stage lavas were originated from melting of carbonated peridotites in the plume. The carbonated melts that metasomatized the peridotites were likely derived from subducted ancient carbonate‐bearing lithospheric mantle.

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Volcanology and facies analysis of the youngest phreatomagmatic deposits on O'ahu, Hawai'i

Pasqualon,

Houghton

2023

Journal of Volcanology and Geothermal Research

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Derivation of Hawaiian rejuvenated magmas from deep carbonated mantle sources: A review of experimental and natural constraints

Cited by 8 publications

References 164 publications

meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

CO₂‐Rich Rejuvenated Stage Lavas on Hawaiian Islands

Volcanology and facies analysis of the youngest phreatomagmatic deposits on O'ahu, Hawai'i

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Derivation of Hawaiian rejuvenated magmas from deep carbonated mantle sources: A review of experimental and natural constraints

Cited by 8 publications

References 164 publications

meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

meltPT: A Python package for basaltic whole-rock thermobarometric analysis with application to Hawai'i

CO2‐Rich Rejuvenated Stage Lavas on Hawaiian Islands

Volcanology and facies analysis of the youngest phreatomagmatic deposits on O'ahu, Hawai'i

Contact Info

Product

Resources

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CO₂‐Rich Rejuvenated Stage Lavas on Hawaiian Islands