https://www.frontiersin.org/journals/geochemistry RSS Feed for Frontiers in Geochemistry | New and Recent Articles en-us Frontiers Feed Generator,version:1 2026-05-02T12:45:52.370+00:00 60 https://www.frontiersin.org/articles/10.3389/fgeoc.2026.1806893 https://www.frontiersin.org/articles/10.3389/fgeoc.2026.1806893 2026-04-20T00:00:00Z Original Research Jie SunZhiguo ZhangZengxia ZhaoGuoqiang TangXuelian Xing https://www.frontiersin.org/articles/10.3389/fgeoc.2026.1766699 https://www.frontiersin.org/articles/10.3389/fgeoc.2026.1766699 2026-03-12T00:00:00Z Original Research Rute SalgueiroTeresa Pena SilvaIván Martín-MéndezDaniel de OliveiraMaria João BatistaCarlos Inverno https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1697337 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1697337 2025-12-10T00:00:00Z Original Research Akira WakazonoMayuko FukuyamaKeita ItanoYumiko HariganeAkihiro TamuraTomoaki Morishita https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1660826 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1660826 2025-11-07T00:00:00Z Original Research Madison X. BettsGokce K. UstunisikRoger L. Nielsen https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1659636 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1659636 2025-09-25T00:00:00Z Review S. I. OlajuyiH. A. AdamuO. S. OgunmodimuD. O. Afolayan https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1693318 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1693318 2025-09-15T00:00:00Z Editorial Nadia Martínez-VillegasJon TellingYiliang Li https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1640841 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1640841 2025-09-10T00:00:00Z Original Research Rames Chauke https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1601288 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1601288 2025-08-29T00:00:00Z Original Research Julie Warner Pier https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1607472 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1607472 2025-08-15T00:00:00Z Original Research A. AngellottiG. MarrasM. MoranaS. CharitonV. StopponiL. MedeghiniC. RomanoA. CorrealeL. BindiF. V. KaminskyV. Stagno https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1622714 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1622714 2025-07-11T00:00:00Z Review Mingyu ShaoZaihua LiuSibo ZengHailong SunHaibo He https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1492386 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1492386 2025-04-04T00:00:00Z Review Elise M. DehaenEleanor J. BurkeSarah E. ChadburnJörg KadukStephen SitchNoah D. SmithAngela V. Gallego-Sala https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1507366 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1507366 2025-03-06T00:00:00Z Original Research Michaela K. ReayIan A. SimpsonWanyue ZhaoRobin A. E. ConinghamChristopher DavisKosh Prasad AcharyaMark ManuelKeir StricklandKrista GillilandTim C. KinnairdIan D. Bull https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1543695 https://www.frontiersin.org/articles/10.3389/fgeoc.2025.1543695 2025-02-07T00:00:00Z Original Research Gabriel ZiwaRich CraneKaren A. Hudson-Edwards https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1475109 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1475109 2024-10-16T00:00:00Z Original Research Devin F. SmithSusan A. WelchAmelia RankinAnne E. CareyW. Berry Lyons https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1436488 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1436488 2024-10-07T00:00:00Z Original Research Marie Bolander JensenThomas Turpin-JelfsMartyn TranterLiane G. BenningAlexandre M. Anesio https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1410338 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1410338 2024-08-21T00:00:00Z Original Research Jared J. ClanceJacob M. C. ShafferMorgan L. CableChristian StennerGlyn Williams-JonesAnna SzynkiewiczMichael PatonKathleen GrahamOlivia VinnesJill A. Mikucki 200 ppm, SO2 >100 ppm, CO2 ∼5,200 ppm, and CO ∼230 ppm. Snowpack and fumarole-associated sediments were characterized for microbial diversity, functional potential, and biogeochemistry including measurements of nutrients, major ions, dissolved organic and inorganic carbon concentrations as well as the stable isotope compositions of carbon, sulfur, hydrogen and oxygen. Green algae (Chlorophyta) dominated the snowpack, consistent with other Pacific Northwest glaciers. Representatives of Firmicutes were the most abundant bacterial sequences detected in our samples, contrasting with other glacier and snowpack samples which harbor abundant Sphingobacteria, Betaproteobacteria, and Alphaproteobacteria. Sediments and water collected inside the cave were mostly high in SO42- (5.3–185.2 mg/L) and acidic (pH = 3.6–6.0), while most other major anions and cations were below detection of the method used. Snow at the cave entrance had more SO42- (0.08 mg/L) and lower pH (5.9) than snow collected at a distance (SO42- undetectable, pH 7.6), suggesting influence by fumarole exhalations. Negative δ13C values of organic matter (−29.0‰ to −26.1‰, respectively) in sediments suggest in-situ microbial carbon transformations, findings that are supported by the presence of genes encoding complete heterotrophic and autotrophic carbon transformation pathways. The δ34S value of H2S was ∼0‰, suggesting a deep magmatic origin; however, both sulfur-oxidizing and sulfate-reducing microbial phyla were present in the sediment samples as were genes encoding both dissimilatory sulfur-oxidizing and sulfate-reducing pathways. Metagenomic data suggest diverse chemosynthetic lifestyles in the cave microbial community. This study provides insight on the microbiomes associated with a sulfidic glaciovolcanic system and identifies unique analog features for icy celestial bodies like Saturn’s moon Enceladus, where cryovolcanic activity may carry biomarkers from the subsurface and deposit them on surface ice.]]> https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1400278 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1400278 2024-07-10T00:00:00Z Original Research Toby A. HalamkaAndy GarciaThomas W. EvansStephanie SchubertAdam YounkinKai-Uwe HinrichsSebastian Kopf https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1447889 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1447889 2024-07-01T00:00:00Z Correction Alban PetitjeanChristophe ThomazoOlivier MussetIvan JovovicPierre SansjofreKalle Kirsimäe https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1413259 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1413259 2024-06-20T00:00:00Z Original Research Kenneth W. W. SimsLisa B. KantGregory J. StarkMark K. ReaganJeff J. StandishCharles H. Langmuir 1 and (226Ra/230Th) > 3. These results indicate that most of these lavas erupted within the past 100 years. Model ages calculated assuming initial (210Pb/226Pb) = 1.8–2.0 further constrain the timing of eruption, suggesting that more than half of the lavas erupted within the past 60 years. When combined with complementary data (side-scan sonar, lava flow morphology, tectonic mapping), this high-resolution record provides fundamental time constraints for interdisciplinary studies examining oceanic crustal construction and development of the hydrothermal system in the ABE vent field. Notably the youngest samples cluster around the active vent sites indicating that the ABE vent site’s location is a direct consequence of this concentrated young volcanism. This study is the first high resolution U-series study of a seafloor vent site and demonstrates the potential of using (210Pb/226Ra) for the determination of lava ages for young submarine lavas in spreading environments with active hydrothermal venting. As such these (210Pb/226Ra) measurements hold the promise for addressing in far greater detail the connections between spreading ridge eruptive and hydrothermal activity on the decadal to century time scales.]]> https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1392021 https://www.frontiersin.org/articles/10.3389/fgeoc.2024.1392021 2024-06-10T00:00:00Z Original Research A. SurretteA. DoboszG. Lambiv DzemuaH. FalckH. E. Jamieson