Coupled surface to deep Earth processes: Perspectives from TOPO-EUROPE with an emphasis on climate- and energy-related societal challenges

Global and Planetary Change, Journal Year: 2023, Volume and Issue: 226, P. 104140 - 104140

Published: May 12, 2023

Understanding the interactions between surface and deep Earth processes is important for research in many diverse scientific areas including climate, environment, energy, georesources biosphere. The TOPO-EUROPE initiative of International Lithosphere Program serves as a pan-European platform integrated sciences, synergizing observational studies structure fluxes on all spatial temporal scales with modelling processes. This review provides survey developments our quantitative understanding coupled surface-deep achieved through TOPO-EUROPE. most notable innovations include (1) process-based connection upper mantle dynamics absolute plate motion frames; (2) models sediment source-to-sink dynamics, demonstrating importance mass transfer from mountains to basins basin basin; (3) demonstration key role polyphase evolution sedimentary basins, impact pre-rift pre-orogenic structures, subsequent lithosphere landscape dynamics; (4) improved conceptual back-arc extension tectonic inversion onset subduction; (5) explain strength Europe's lithosphere; (6) concepts governing interplay thermal stress-induced intraplate deformation; (7) constraints record vertical motions high-resolution data sets obtained geo-thermochronology topographic evolution; (8) recognition quantifications forcing by erosional and/or glacial-interglacial regional magmatism, major implications carbon cycle geological timescales emerging field biogeodynamics; (9) insights coupling domain geothermal energy exploration. Concerning future agenda TOPO-EUROPE, we also discuss rich potential further advances, multidisciplinary community building across frontiers, biosphere, climate energy. These will focus obtaining better insight into initiation subduction systems, plumes continental rifting (super)continent break-up, deformation reactivation cratons; interaction geodynamic, processes, such glaciation, sea level change processes; sensitivity, tipping points, spatio-temporal tectonics well rock melting outgassing affecting interactions; biogeodynamics, that – life Earth; tightening societal challenges regarding renewable georesources, change, natural geohazards, novel process-understanding system.

Language: Английский

---

Discovery and genesis of helium-rich geothermal fluids along the India–Asia continental convergent margin

Geochimica et Cosmochimica Acta, Journal Year: 2023, Volume and Issue: 360, P. 175 - 191

Published: Sept. 16, 2023

Language: Английский

---

Ultrahigh-precision noble gas isotope analyses reveal pervasive subsurface fractionation in hydrothermal systems

Science Advances, Journal Year: 2023, Volume and Issue: 9(15)

Published: April 14, 2023

Mantle-derived noble gases in volcanic are powerful tracers of terrestrial volatile evolution, as they contain mixtures both primordial (from Earth’s accretion) and secondary (e.g., radiogenic) isotope signals that characterize the composition deep Earth. However, emitted through subaerial hydrothermal systems also contributions from shallow reservoirs (groundwater, crust, atmosphere). Deconvolving source is critical for robust interpretations mantle-derived signals. Here, we use a novel dynamic mass spectrometry technique to measure argon, krypton, xenon isotopes gas with ultrahigh precision. Data Iceland, Germany, United States (Yellowstone, Salton Sea), Costa Rica, Chile show subsurface fractionation within globally pervasive previously unrecognized process causing substantial nonradiogenic Ar-Kr-Xe variations. Quantitatively accounting this vital accurately interpreting nitrogen) signals, profound implications our understanding evolution.

Language: Английский

---

Occurrence and enrichment mechanisms of helium in geothermal systems in continental China

Gondwana Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

---

Noble Gas Isotopes and Nitrogen Isotopologues Reveal Deep Sources and Subsurface Fractionation in Yellowstone Gases

ACS Earth and Space Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Nitrogen plays a critical role in maintaining Earth's hospitable surface environment over geological time. Despite our atmosphere being dominated by nitrogen, understanding of how nitrogen was delivered to Earth and subsequent planetary processes modified budget through time is currently lacking. Here, we report measurements isotopologues N2 (Δ30), along with ultrahigh precision Ar, Kr, Xe isotopes, hydrothermal gas samples from Yellowstone National Park. We show that δ15N variations are correlated nonradiogenic isotope ratios, indicating groundwater-derived noble gases fractionated the same process as they diffuse rising column magmatic CO2. Notably, similar correlation exists regardless degree atmospheric contamination, suggesting mantle source (i.e., ∼0‰). Two component mixing models between Δ30 demonstrate N2/36Ar (5.3 ± 0.7 × 105) 36Ar/130Xe (1611 212) lower greater than MORB source, respectively, contrary previous findings, plume has not been more efficiently overprinted addition N2- Xe-rich recycled material. Conversely, suggest similarity chondritic meteorites indicates deep reflect composition material initially formed Earth.

Language: Английский

---

Volcano-tectonic controls on magma residence time in arc crusts: Insights from noble gas geochemistry in the Andean Southern Volcanic Zone.

Earth and Planetary Science Letters, Journal Year: 2025, Volume and Issue: 661, P. 119352 - 119352

Published: April 23, 2025

Language: Английский

---

Deep magma degassing and volatile fluxes through volcanic hydrothermal systems: Insights from the Askja and Kverkfjöll volcanoes, Iceland

Journal of Volcanology and Geothermal Research, Journal Year: 2023, Volume and Issue: 436, P. 107776 - 107776

Published: March 6, 2023

Mantle volatiles are transported to Earth's crust and surface by basaltic volcanism. During subaerial eruptions, vast amounts of carbon, sulfur halogens can be released the atmosphere during a short time-interval, with impacts ranging in scale from local environment global climate. By contrast, passive volatile release at originating magmatic intrusions is characterized much lower flux, yet may outsize eruptive quantities over long timescales. Volcanic hydrothermal systems (VHSs) act as conduits for such degassing used gauge contribution intrusive magmatism cycles. Here, we present new compositional isotopic (δD δ18O-H2O, 3He/4He, δ13C-CO2, Δ33S-δ34S-H2S SO4) data thermal waters fumarole gases Askja Kverkfjöll volcanoes central Iceland. We use together magma modelling mass balance calculations constrain sources VHSs assess role volcanic emission budgets The CO2/ΣS (10−30), 3He/4He (8.3–10.5 RA; relative air), δ13C-CO2 (−4.1 −0.2 ‰) (−0.031 0.003 ‰ −1.5 +3.6‰) values high-gas flux fumaroles (CO2 > 10 mmol/mol) consistent an origin CO2 S Kverkfjöll. demonstrate that deep (0.5–5 kbar, equivalent ∼2–18 km crustal depth) decompression Iceland results fluxes 330–5060 6–210 kt/yr, respectively, which sufficient account estimated Icelandic (3365–6730 kt/yr), but not VHS (220–440 kt/yr). Secondary, crystallization-driven maturing leaching rocks suggested additional S. Only minor proportion mantle Cl channeled via whereas H2O remains poorly constrained, because signals masked dominant shallow groundwater component meteoric water origin. These suggest bulk supplied intrusive, magmatism, largely vented fields.

Language: Английский

---

New insights from plumbing system below composite mafic volcanoes: Post-glacial volatile contents and magmatic fluids from Villarrica magmas

Lithos, Journal Year: 2024, Volume and Issue: unknown, P. 107786 - 107786

Published: Sept. 1, 2024

Language: Английский

---

Reviewing the geodynamic impact of aseismic ridges subduction on the tectonic-magmatic evolution of the Southern Puna plateau

Journal of South American Earth Sciences, Journal Year: 2023, Volume and Issue: 129, P. 104520 - 104520

Published: Aug. 1, 2023

Language: Английский

---

Complex organic matter degradation by secondary consumers in chemolithoautotrophy-based subsurface geothermal ecosystems

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(8), P. e0281277 - e0281277

Published: Aug. 18, 2023

Microbial communities in terrestrial geothermal systems often contain chemolithoautotrophs with well-characterized distributions and metabolic capabilities. However, the extent to which organic matter produced by these supports heterotrophs remains largely unknown. Here we compared abundance activity of peptidases carbohydrate active enzymes (CAZymes) that are predicted be extracellular identified metagenomic assemblies from 63 springs Central American Andean convergent margin (Argentinian backarc Volcanic Zone), as well plume-influenced spreading center Iceland. All two orders magnitude more than CAZymes, suggesting microorganisms use proteins for their carbon and/or nitrogen acquisition instead complex sugars. The CAZy families highest GH23 CBM50, most abundant peptidase M23 C26, all four degrade peptidoglycan found bacterial cells. This implies heterotrophic community relies on autochthonous dead cell biomass, rather allochthonous plant matter, material. Enzymes involved degradation cyanobacterial- algal-derived compounds lower at every site, volcanic sites having degrading cyanobacterial non-volcanic algal compounds. Activity assays showed many enzyme classes samples. High temperature (> 80°C) had similar carbon-degrading regardless province, a less well-developed population secondary consumers sites, possibly connected limited subsurface biosphere high sites. We conclude < 80°C springs, chemolithoautotrophic production capable wide range do not vary geological even though taxonomic respiratory repertoire differ greatly across regions.

Language: Английский

---