Diffusivity and solubility of He in garnet: An exploratory study using nuclear reaction analysis

Roselieb, Knut; Dersch, O.; Büttner, Heinz; Rauch, F.

doi:10.1016/j.nimb.2005.10.016

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…Studies of Dunai & Roselieb () and Roselieb et al . () showed that the closure temperature for helium in garnet could be as high as ~630 °C. Given the larger size of argon when compared to helium and assuming the same mechanism for diffusion, the closure temperature for argon diffusion in garnet must be at least as high as, and probably considerably higher than 630 °C.…”

Section: Discussionmentioning

confidence: 99%

Protracted garnet growth in high‐Peclogite: constraints from multiple geochronology andP–Tpseudosection

Hao

Cao

2015

Journal Metamorphic Geology

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Understanding convergent margin processes requires determination of the onset and the termination of subduction, the duration of subduction-zone metamorphism, and the subduction zone polarity. Garnet growth and intracrystalline zonation can be used to constrain the timing, duration and kinetics of tectonometamorphic processes. An eclogite from the Huwan shear zone in the Hong'an orogen was investigated with combined pseudosection analysis and multiple geochronologies. The pseudosection analysis illustrates that garnet growth is continuous and along an early near-isothermal trajectory followed by a near-isobaric heating path from 1.9 GPa/500°C to 2.4 GPa/575°C and subsequent near-isothermal decompression. 40 Ar/ 39 Ar dating of an amphibole inclusion in garnet from the eclogite yielded an age of 310 AE 5 Ma, which is consistent with a U-Pb age of 305 AE 3 Ma for the metamorphic zircon within uncertainty. Garnet core and rim material produced Lu-Hf ages of 296.9 AE 3.8 and 256.9 AE 3.9 Ma respectively; the latter is consistent with its Sm-Nd age of 254.3 AE 4.6 Ma for the same aliquots. Similarly, limited zircon U-Pb ages of c. 257 Ma were obtained in zircon rims with garnet inclusions. These ages were interpreted to bracket the period of garnet growth and the difference of up to c. 40 Ma is best explained by protracted garnet growth. We propose that the rocks represent detachment of part of the downgoing slab and remained free of significant compression/decompression or heating/cooling close to the subduction channel, most likely underplating the mantle wedge, for a long time. These rocks were incorporated into the following subduction channel due to the successive entry of the buoyant materials, and exhumed at some time later than c. 254 Ma. The increasing observations of protracted garnet growth and long-lived subduction in various orogens worldwide demand more sophisticated geodynamic models.

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Section: Discussionmentioning

confidence: 99%

Protracted garnet growth in high‐Peclogite: constraints from multiple geochronology andP–Tpseudosection

Hao

Cao

2015

Journal Metamorphic Geology

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“…Tectonics rocks, has a T c of~200-300°C (Seman et al, 2014), although 3 He diffusion experiments using nuclear reaction analysis yield T c >450°C (Roselieb et al, 2006). Spinel, a primary phase in mantle peridotites, has a T c of 200-300°C based on empirical constraints comparing spinel He and ZFT results (Cooperdock & Stockli, 2018).…”

Section: 1029/2018tc005312mentioning

confidence: 99%

“…Rutile has a T c of ~220–235 °C and has the potential to quantify midcrustal exhumation when paired with well‐characterized petrologic and geochemical context (Stockli et al, ; Wolfe, ). Garnet, common in metamorphic rocks, has a T c of ~200–300 °C (Seman et al, ), although 3 He diffusion experiments using nuclear reaction analysis yield T c >450 °C (Roselieb et al, ). Spinel, a primary phase in mantle peridotites, has a T c of ~200–300 °C based on empirical constraints comparing spinel He and ZFT results (Cooperdock & Stockli, ).…”

Section: Advances In Thermochronometry Systematicsmentioning

confidence: 99%

Innovations in (U–Th)/He, Fission Track, and Trapped Charge Thermochronometry with Applications to Earthquakes, Weathering, Surface‐Mantle Connections, and the Growth and Decay of Mountains

2019

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A transformative advance in Earth science is the development of low‐temperature thermochronometry to date Earth surface processes or quantify the thermal evolution of rocks through time. Grand challenges and new directions in low‐temperature thermochronometry involve pushing the boundaries of these techniques to decipher thermal histories operative over seconds to hundreds of millions of years, in recent or deep geologic time and from the perspective of atoms to mountain belts. Here we highlight innovation in bedrock and detrital fission track, (U–Th)/He, and trapped charge thermochronometry, as well as thermal history modeling that enable fresh perspectives on Earth science problems. These developments connect low‐temperature thermochronometry tools with new users across Earth science disciplines to enable transdisciplinary research. Method advances include radiation damage and crystal chemistry influences on fission track and (U–Th)/He systematics, atomistic calculations of He diffusion, measurement protocols and numerical modeling routines in trapped charge systematics, development of 4He/3He and new (U–Th)/He thermochronometers, and multimethod approaches. New applications leverage method developments and include quantifying landscape evolution at variable temporal scales, changes to Earth's surface in deep geologic time and connections to mantle processes, the spectrum of fault processes from paleoearthquakes to slow slip and fluid flow, and paleoclimate and past critical zone evolution. These research avenues have societal implications for modern climate change, groundwater flow paths, mineral resource and petroleum systems science, and earthquake hazards.

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“…with X = OH or F), and britholite (Ca4Nd6(SiO4)6X2) [109][110][111][112][113][114][115][116][117][118][119][120][121][122][123][124][125], monazite (rare earth phosphate) [125], thorium phosphate [126], zirconia [117,118,152], spinel (MgAl2O4) [138], zircon (ZrSiO4) [121], olivine ((Mg,Fe)2SiO4) [148,149], garnet (Ba3Al2(SiO4)3) [155], aeschynite ((Y,Ca,Fe)(Ti,Nb)2(O,OH)6) [111], zirconolite (CaZr2O7), and pyrochlore (Gd2Zr2O7) [117,118,153], zirconium nitride [154], uraninite (UO2) [127][128][129][130][131][132][133], plutonium oxide [129]. Most of the above studied materials are classified as nuclear waste ceramics, glasses, nuclear fuels and inert fuel matrices.…”

Section: B Class Ii: Experimental Investigations On Non-metallic Commentioning

confidence: 99%

Helium mobility in advanced nuclear ceramics

Agarwal

Trocellier

Serruys

et al. 2014

Nuclear Instruments and Methods in Physics Research Section B:

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Diffusivity and solubility of He in garnet: An exploratory study using nuclear reaction analysis

Cited by 14 publications

References 8 publications

Protracted garnet growth in high‐Peclogite: constraints from multiple geochronology andP–Tpseudosection

Protracted garnet growth in high‐Peclogite: constraints from multiple geochronology andP–Tpseudosection

Innovations in (U–Th)/He, Fission Track, and Trapped Charge Thermochronometry with Applications to Earthquakes, Weathering, Surface‐Mantle Connections, and the Growth and Decay of Mountains

Helium mobility in advanced nuclear ceramics

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