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Potassium isotope heterogeneity in the early Solar System controlled by extensive evaporation and partial recondensation
Volatiles are vital ingredients for a habitable planet. Angrite meteorites sample the most volatile-depleted planetesimal in the Solar System,...
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Estimation of the depth of origin of fluids using noble gases in the surface sediments of submarine mud volcanoes off Tanegashima Island
The helium isotope ratio ( 3 He/ 4 He), concentration ratio of neon-20 to helium-4 ( 20 Ne/ 4 He), argon (Ar), krypton (Kr), and xenon (Xe) concentrations...
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Noble gas isotopes reveal degassing-derived eruptions at Deception Island (Antarctica): implications for the current high levels of volcanic activity
Deception Island is one of the most active volcanoes in Antarctica with more than twenty explosive eruptions in the past two centuries. Any future...
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Monitoring of magmatic–hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases
We repeatedly measured isotopic compositions of noble gases and CO 2 in volcanic gases sampled at six fumaroles around the Kusatsu-Shirane volcano...
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Mid-Cretaceous marine Os isotope evidence for heterogeneous cause of oceanic anoxic events
During the mid-Cretaceous, the Earth experienced several environmental perturbations, including an extremely warm climate and Oceanic Anoxic Events...
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High temperature methane emissions from Large Igneous Provinces as contributors to late Permian mass extinctions
Methane (CH 4 ) emissions induced by Large Igneous Provinces have the potential to contribute to global environmental changes that triggered mass...
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Rapid microbial methanogenesis during CO2 storage in hydrocarbon reservoirs
Carbon capture and storage (CCS) is a key technology to mitigate the environmental impact of carbon dioxide (CO 2 ) emissions. An understanding of the...
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86Kr excess and other noble gases identify a billion-year-old radiogenically-enriched groundwater system
Deep within the Precambrian basement rocks of the Earth, groundwaters can sustain subsurface microbial communities, and are targets of investigation...
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The Qixiangzhan eruption, Changbaishan-Tianchi volcano, China/DPRK: new age constraints and their implications
Zircon double dating (ZDD) of comendite lava reveals an eruption age of 7.0 ± 0.9 ka for the Qixiangzhan eruption (QXZ), Changbaishan-Tianchi...
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Orbital controls on eastern African hydroclimate in the Pleistocene
Understanding eastern African paleoclimate is critical for contextualizing early human evolution, adaptation, and dispersal, yet Pleistocene climate...
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Magmatic-hydrothermal fluid evolution of the tin-polymetallic metallogenic systems from the Weilasituo ore district, Northeast China
The large Weilasituo Sn-polymetallic deposit is a recent exploration discovery in the southern Great **ng’an Range, northeast China. The ore cluster...
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Progressive crushing 40Ar/39Ar dating of a gold-bearing quartz vein from the Liaotun Carlin-type gold deposit, Guangxi, southern China
Carlin-type gold deposits are among the largest hydrothermal gold deposits in the world. However, direct dating the metallogenic age of these...
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Emplacement of the Argyle diamond deposit into an ancient rift zone triggered by supercontinent breakup
Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic...
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Deep-mantle krypton reveals Earth’s early accretion of carbonaceous matter
Establishing when, and from where, carbon, nitrogen and water were delivered to Earth is a fundamental objective in understanding the origin of...
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Magmatic surge requires two-stage model for the Laramide orogeny
The Laramide orogeny is a pivotal time in the geological development of western North America, but its driving mechanism is controversial. Most...
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Exploring the links between volcano flank collapse and the magmatic evolution of an ocean island volcano: Fogo, Cape Verde
Mass-wasting of ocean island volcanoes is a well-documented phenomenon. Massive flank collapses may imply tens to hundreds of km 3 and generate...
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High 3He/4He ratios in lower East Rift Zone steaming vents precede a new phase of Kilauea 2018 eruption by 8 months
On May 1, 2018, a magnitude 5.0 earthquake heralded the collapse of the Pu’u O’o Vent on the middle East Rift Zone (ERZ) of Kilauea Volcano, active...
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Primitive noble gases sampled from ocean island basalts cannot be from the Earth’s core
Noble gas isotopes in plumes require a source of primitive volatiles largely isolated in the Earth for 4.5 Gyrs. Among the proposed reservoirs, the...
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Hydrothermal 15N15N abundances constrain the origins of mantle nitrogen
Nitrogen is the main constituent of the Earth’s atmosphere, but its provenance in the Earth’s mantle remains uncertain. The relative contribution of...
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Paroxysmal eruptions tracked by variations of helium isotopes: inferences from Piton de la Fournaise (La Réunion island)
Helium (He) with its isotopes ( 3 He, 4 He) is a key tracer enabling the Earth’s mantle and dynamics to be characterized. Enrichment in primordial...
