Search Results - "Yokochi, R"

Tracer applications of noble gas radionuclides in the geosciences by Lu, Z.-T., Schlosser, P., Smethie, W.M., Sturchio, N.C., Fischer, T.P., Kennedy, B.M., Purtschert, R., Severinghaus, J.P., Solomon, D.K., Tanhua, T., Yokochi, R.

“…Noble gas radionuclides, including 81Kr (t1/2=229,000years), 85Kr (t1/2=10.8years), and 39Ar (t1/2=269years), possess nearly ideal chemical and physical…”
Get full text

Heating events in the nascent solar system recorded by rare earth element isotopic fractionation in refractory inclusions by Hu, J Y, Dauphas, N, Tissot, F L H, Yokochi, R, Ireland, T J, Zhang, Z, Davis, A M, Ciesla, F J, Grossman, L, Charlier, B L A, Roskosz, M, Alp, E E, Hu, M Y, Zhao, J

“…Equilibrium condensation of solar gas is often invoked to explain the abundance of refractory elements in planets and meteorites. This is partly motivated, by…”
Get full text

Teflon-HPLC: A novel chromatographic system for application to isotope geochemistry and other industries by Ireland, T.J., Tissot, F.L.H., Yokochi, R., Dauphas, N.

“…Traditional column chromatography techniques are restricted by several factors, including limitations on column length, resin grain size, elution time, and a…”
Get full text

Noble gas radionuclides in Yellowstone geothermal gas emissions: A reconnaissance by Yokochi, R., Sturchio, N.C., Purtschert, R., Jiang, W., Lu, Z.-T., Mueller, P., Yang, G.-M., Kennedy, B.M., Kharaka, Y.

“…A reconnaissance investigation of noble gas radionuclides (39Ar, 81Kr, and 85Kr) in gas emissions from several geothermal features at Yellowstone National Park…”
Get full text

Cosmogenic 3He production rates revisited from evidences of grain size dependent release of matrix-sited helium by Blard, P.-H., Pik, R., Lavé, J., Bourlès, D., Burnard, P.G., Yokochi, R., Marty, B., Trusdell, F.

“…Measurements of the cosmogenic 3He ( 3He c) content of various size aliquots of exposed olivines show that the fine fraction (< 140 μm) has 3He c…”
Get full text

Underground production of 81Kr detected in subsurface fluids by Purtschert, R., Yokochi, R., Jiang, W., Lu, Z.-T., Mueller, P., Zappala, J., Van Heerden, E., Cason, E., Lau, M., Kieft, T.L., Gerber, C., Brennwald, M.S., Onstott, T.C.

“…•The first time that underground production of 81Kr was detected in geological formations.•A novel model was developed that describes the dynamics of…”
Get full text

Nitrogen in peridotite xenoliths: Lithophile behavior and magmatic isotope fractionation by Yokochi, Reika, Marty, Bernard, Chazot, Gilles, Burnard, Pete

“…In order to document the origin and speciation of nitrogen in mantle-derived rocks and minerals, the N and Ar contents and isotopic compositions were…”
Get full text

A determination of the neon isotopic composition of the deep mantle by Yokochi, Reika, Marty, Bernard

“…The neon isotopic composition of the deep mantle, which allows to investigate formation processes of the Earth, is subject to debate. We have analyzed Ne…”
Get full text

Geochemical constraints on mantle dynamics in the Hadean by Yokochi, Reika, Marty, Bernard

“…Mantle convection is intimately linked with terrestrial degassing through decompression melting, magma generation. Hence tracers of mantle degassing through…”
Get full text

Xenon isotope constraints on the thermal evolution of the early Earth by Coltice, Nicolas, Marty, Bernard, Yokochi, Reika

“…The thermal regime of the Earth's interior during the Hadean (the first 700 My after the birth of the solar system) is subject to debate. Evidence for a hotter…”
Get full text

Corrigendum to “Noble gas radionuclides in Yellowstone geothermal gas emissions: a reconnaissance” [Chem. Geol. 339 (2013) 43-51] by Yokochi, R., Sturchio, N.C., Purtschert, R., W., Jiang, Z.-T., Lu, P., Mueller, G.-M., Yang, Kennedy, B.M., Kharaka, Y.

Get full text

The noble gas and nitrogen relationship between Ryugu and carbonaceous chondrites by Broadley, M.W., Byrne, D.J., Füri, E., Zimmermann, L., Marty, B., Okazaki, R., Yada, T., Kitajima, F., Tachibana, S., Yogata, K., Sakamoto, K., Yurimoto, H., Nakamura, T., Noguchi, T., Naraoka, H., Yabuta, H., Watanabe, S., Tsuda, Y., Nishimura, M., Nakato, A., Miyazaki, A., Abe, M., Okada, T., Usui, T., Yoshikawa, M., Saiki, T., Tanaka, S., Terui, F., Nakazawa, S., Busemann, H., Hashizume, K., Gilmour, J.D., Meshik, A., Riebe, M.E.I., Krietsch, D., Maden, C., Ishida, A., Clay, P., Crowther, S.A., Fawcett, L., Lawton, T., Pravdivtseva, O., Miura, Y.N., Park, J., Bajo, K., Takano, Y., Yamada, K., Kawagucci, S., Matsui, Y., Yamamoto, M., Righter, K., Sakai, S., Iwata, N., Shirai, N., Sekimoto, S., Inagaki, M., Ebihara, M., Yokochi, R., Nishiizumi, K., Nagao, K., Lee, J.I, Kano, A., Caffee, M.W., Uemura, R.

“…Carbonaceous chondrites are considered to have originated from C-type asteroids and represent some of the most primitive material in our solar system…”
Get full text

Mantle dynamics in the Hadean: Earth and Mars by Marty, B., Yokochi, R., Marti, K.

Get full text

INTRAGRAIN VARIATION IN  13C AND NITROGEN CONCENTRATION ASSOCIATED WITH TEXTURAL HETEROGENEITIES OF CARBONADO by Yokochi, R., Ohnenstetter, D., Sano, Y.

Get full text

Long-term observation of trace metal concentration in aerosols at a remote island, Rishiri, Japan by using inductively coupled plasma mass spectrometry equipped with laser ablation by Okuda, T, Tenmoku, M, Kato, J, Mori, J, Sato, T, Yokochi, R, Tanaka, S

“…Aerosol samples were continuously collected at Rishiri Island, Japan and concentrations of trace metals and water-soluble ionic constituents in the aerosol…”
Get full text

A search for cosmogenic nitrogen in a terrestrial rock by Marty, B., Yokochi, R., Schaefer, J.M., Wieler, R.

Get full text

Radiokrypton analysis in the 21st century: Development and application of a laser atom trap by Sturchio, N.C., Lu, Z.-T., Mueller, P., Bailey, K., O’Connor, T.P., Yokochi, R., Probst, P.

Get full text

Ion microprobe Pb–Pb dating of carbonado, polycrystalline diamond by Sano, Yuji, Yokochi, Reika, Terada, Kentaro, Chaves, Mario L., Ozima, Minoru

“…We report in situ ion microprobe Pb–Pb dating of quartz, rutile and clay mineral inclusions and matrix part of polycrystalline diamonds, ‘carbonado’ derived…”
Get full text

Helium Isotopes in Pacific Waters from Adjacent Region of Honshu, Japan by Sano, Yuji, Kosugi, Takuma, Takahata, Naoto, Yokochi, Reika

“…We have measured helium isotopic ratios of thirty-seven Pacific water samples from various depths collected in adjacent regions of Honshu, Japan. The ^sup…”
Get full text

A spectroscopic study of the cycling transition 4s[3/2]{sub 2}-4p[5/2]{sub 3} at 811.8 nm in {sup 39}Ar : hyperfine structure and isotope shift by Williams, W., Lu, Z.-T., Rudinger, K., Xu, C.-Y., Yokochi, R., Mueller, P.

“…Doppler-free saturated absorption spectroscopy is performed on an enriched radioactive {sup 39}Ar sample. The spectrum of the 3s{sup 2}3p{sup 5}4s[3/2]{sub…”
Get full text