Papers

Abebe, E., M. Mulugeta, B. Tesfaw, T. Sano, Y. Kusaba (2025) Structural and metamorphic evolution of Neoproterozoic rocks in Bensa-Girja area, southern Ethiopia. Journal of African Earth Sciences, 230, 105738 (17 pages).
Raigemborn, M. S, S. Lizzoli, D. Moyano-Paz, A. N. Varela, D. G. Poir, V. S. P. Loinaze, E. I. Vera, M. Manabe, T. Tsuihiji, T. Sano, F. E. Novas (2025) Maastrichtian climate of southern Patagonia (Argentina): An approach from paleosols of the dinosaur-bearing Chorrillo Formation. Cretaceous Research, 174, 106144. (16 pages)
Matsumoto, H., K. T. Goto, G. Shimida, Y. Watanabe, K. Shirai, M. L. G. Tejada, A. Ishikawa, A. Ando, T. Sano, J. Kuroda, K. Suzuki (2024) Bried and intensive volcanic emissions from Ontong Java Nui heralded Oceanic Anoxic Event 1a. Communications Earth & Environment, 5, 155, https://doi.org/10.1038/s43247-024-01310-0.
Motomura, K., A. Bekker, W. Bleeker, M. Ikehara, T. Sano, C. Guilmette, Y. Lin, S. Kiyokawa (2024) Nitrogen isotope gradient on continental margins during the late Paleoproterozoic. Geocimica et Cosmochimica Acta, 371, 144–161.
Ujiie, K., N. Nishiyama, H. Yamamoto, M. Yamashita, T. Nagaya, T. Sano, Y. Kouketsu (2024). Duplex underplating, sediment dehydration and quartz vein mineralization in the deep tremor source region. Journal of Geophysical Research: Solid Earth, 129, e2023JB027901. https://doi.org/10.1029/2023JB027901 (29 pages).
Khalaf, E. E. D. A. H., T. Sano (2023) Petrogenesis of Late Cretaceous A1-type alkali monogenetic volcanoes, Wadi Natash, South Eastern Desert, Egypt, and their implications for Nb mineralization and tectonic evolution. Arabian Journal of Geosciences, 16, 532
Abebe, E., M. Alene, B. Tesfaw, T. Sano (2023) Geochemistry of the Neoproterozoic ophiolite from the Bensa-Girja area, southern Ethiopia: Petrogenesis and paleotectonics. Journal of African Earth Sciences, 206, 105040.
Davidson, P. C., A. A. P. Koppers, T. Sano, T. Hanyu (2023) A younger and protracted emplacement of the Ontong Java Plateau. Science, 380, 1185–1188.
Tejada, M. L. G., T. Sano, T. Hanyu, A. A. P. Koppers, M. Nakanishi, T. Miyazaki, A. Ishikawa, K. Tani, S. Shimizu, K. Shimizu, B. Vaglarov, Q. Chang (2023) New evidence for the Ontong Java Nui hypothesis. Scientific Reports, 12, 8484, https://doi.org/10.1038/s41598-023-33724-9, (11 pages).
Geldmacher, J., F. Hauff, A. Dürkefälden, T. Sano, D. Garbe-Schönberg, M. Portnyagin, K. Hoernle (2023) The effect of submarine alteration and phosphatization on igneous rocks: Implications for Sr-, Nd-, Pn-isotope studies. Chemical Geology, 631, 121509, https://doi.org/10.1016/j.chemgeo.2023.121509, (17 pages).
Yoshimura, Y., Ishizuka, O., Yamazaki, T., Ahn, H., Kidane, T., Yamamoto, Y., S. Sekimoto, T. Sano, Y. Otofuji (2023). Edge-driven convection melting before the emplacement of the Afar mantle plume head inferred from 40Ar/ 39Ar dating. Geophysical Research Letters, 50, e2022GL102560. https://doi.org/10.1029/2022GL102560, (9 pages).
Motohashi, G., T. Sano, K. Ujiie, M. Frank (2023) Origin of alkaline basaltic intrusive rocks in an exhumed accretionary complex: implications for past petit-spot volcanism in the ocean. Geochemistry Geophysics Geosystems, 24, e2022GC010801, https://doi.org/10.1029/2022GC010801, (11 pages).
Conway, C. E., K. Tani, T. Sano, K. Matsumoto, O. Ishizuka (2023) A kitchen experiment for replicating lava-ice interaction on stratovolcano. Frontiers in Earth Science, 11, 1116157. doi: 10.3389/feart.2023.1116157 (10 pages).
Motohashi, G., O. Ishizuka, H. Oda, T. Sano, S. Sekimoto, K. Ujiie (2023) Middle Miocene Forearc Alkaline Magmatism in Amami-Oshima Island, Central Ryukyu Arc: Implications for Paleoreconstruction of Shikoku Basin. Earth, Planets and Space, 75, 9, https://doi.org/10.1186/s40623-022-01760-w, (14 pages).
Motomura, K., K. Horie, M. Ikehara, T. Sano, M. Takehara, S. Kiyokawa (2023) The nitrate-limited freshwater environment of the late Paleoproterozoic Embury Lake Formation, Flin Flon belt, Canada. Chemical Geology, 616, 121234, https://doi.org/10.1016/j.chemgeo.2022.121234, (12 pages).
Sano, T., K. Tani, S. Yoneda, Hla Min, Thaung Htike, Zin Maung Maung Thein, O. Ishizuka, N. Kusuhashi, R. T., Kono, M. Takai, C. E. Conway (2022) Petrogenesis of isotopically enriched Quaternary magma with adakitic affinity associated with subduction of old lithosphere beneath central Myanmar. Scientific Reports, 12, 3137, https://doi.org/10.1038/s41598-022-07097-4, (11pages).
Motomura, K., S. Kiyokawa, M. Ikehara, T. Sano, W. Bleeker, K. Tanaka, T. Miki, Y. Sano (2021) Redox fluctuation and d13Corg-d34S perturbation recorded in the 1.9 Ga Nuvilik Formation of the Cape Smith belt, Canada. Precambrian Research, 359, https://doi.org/10.1016/j.precamres.2021.106191 (12 pages).
Sano, T., H. Hanyu, M. L. G. Tejada, A. A. P. Koppers, S. Shimizu, T.Miyazaki, Q. Chang, R. Senda, B. S. Vaglarov, K. Ueki, C. Toyama, J-. I. Kimura M. Nakanishi (2020) Two-stages of plume tail volcanism formed Ojin Rise Seamounts adjoining Shatsky Rise. Lithos, 372-373, 105353, doi.org/10.1016/j.lithos.2020.105652 (17 pages).
Khalaf, E. E. D. A. H., T. Sano (2020) Petrogenesis of Neogene polymagmatic suites at a monogenetic low-volume volcanic provinces, Bahariya depression, Western Desert, Egypt. International Journal of Earth Sciences, 109, 995–1027. doi.org/10.1007/s00531-020-01849-1.
Shimizu, S., M. Nakanishi, T. Sano (2020), Near-ridge-axis volcanism affected by hotspot: insights from effective elastic thickness and topography of the Ojin Rise Seamounts, east of Shatsky Rise in the northwest Pacific Ocean. Earth, Planets and Space, 72, 11, https://doi.org/10.1186/s40623-020-1140-5.
Sano, T., S. Yamashita (2019), Evolution, hydrothermal assimilation, and ascent of magma inferred from volatile contents in MORB glasses: An example from thick lava pile at IODP Site 1256, Lithos, 346-347, 105143. doi:10.1016/j.lithos.2019.07.010.
Tonegawa, T., S. Miura, A. Ishikawa, T. Sano, D. Suetsugu, T. Isse, H. Shinohara, H. Sugioka, A. Ito, Y. Ishihara, S. Tanaka, M. Obayashi, J. Yoshimitsu, T. Kobayashi (2019), Characterization of crusal and uppermost-mantle seismic discontinuities in the Ontong Java Plateau, Journal of Geophysical Research (Solid Earth), 124, 7155-7170, doi:10.1029/2018JB016970.
Khalaf, E. E. D. A. H., T. Sano, Y. Tsutsumi (2018), Evolution of monogenetic rift-related alkaline magmatism in south Egypt: Insingt from stratigraphy, geochronology, and geochemistry of the Natash volcanics. Journal of African Earth Sciences, 147, 450-476, doi:10.1016/j.afrearsci.2018.05.024.
Sano, T., T. Hasenaka, A. Shimaoka, T. Fukuoka, H. Nagai (2017), Low ratio of sediment recycling at Northeast Japan Arc: Constrains from 10Be isotopes and B-Ba-K-Be systematics, Geochemical Journal, 51, 277–291、doi:10.102343/geochemj/2.0468.(978.3 KB)
Sager, W. W., T. Sano, J. Geldmacher (2016), Formation and evolution of Shatsky Rise oceanic plateau: Insignts from IODP Expedition 324 and recent geophysical cruises, Earth-Science Reviews, 159, 306–336, doi: 10.1016/j.earscirev.2016.05.011.
Sano, T., M. Shirao, K. Tani, Y. Tsutsumi, S. Kiyokawa, T. Fujii (2016), Progressive enrichment of arc magmas caused by the subduction of seamounts under Nishinoshima volcano, Izu–Bonin Arc, Japan, Journal of Volcanology and Geothermal Research, 319, 52–65, doi:10.1016/j.volgeores.2016.03.004.
Hanyu, T., K. Shimizu, T. Sano (2015) Noble gas evidence for the presence of recycled material in magma sources of the Shatsky Rise, In Neal, C. R., W.W. Sager, T. Sano, E. Erba, (Editors), The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 57–67, doi:10.1130/2015.2511(03).
Miyoshi, M., T. Sano, K. Shimizu, A. Delacour, T. Hasenaka, Y. Mori, T. Fukuoka (2015) Boron and chlorine contents of basalts from the Shatsky Rise, IODP Expedition 324: Implications for the alteration of oceanic crust, In Neal, C. R., W.W. Sager, T. Sano, E. Erba,  (Editors), The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 69–84, doi:10.1130/2015.2511(04).
Sano, T., Y. Nishio (2015) Lithium isotope evidence for magmatic assimilation of hydrothermally influenced crust beneath oceanic large igneous provinces, In Neal, C. R., W.W. Sager, T. Sano, E. Erba, (Editors), The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 173–183, doi:10.1130/2015.2511(09).
Sano, T. (2015), Homogenization of magmas of the Ontong Java Plateau: Olivine–spinel compositional evidence, In Neal, C. R., W.W. Sager, T. Sano, E. Erba, (Editors), The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 221–232, doi:10.1130/2015.2511(12).
Shimizu, K., T. Sano, M. L. G. Tejada, H. Hyodo, K. Sato, K. Suzuki, Q. Chang, M. Nakanishi (2015) Alkalic magmatism in the Lyra Basin: A missing link in the late-stage evolution of the Ontong Java Plateau, In Neal, C. R., W. W. Sager, T. Sano, E. Erba, (Editors), The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 233–249, doi:10.1130/2015.2511(13).
Tejada, M. L. G., K. Shimizu, K. Suzuki, T. Hanyu, T. Sano, M. Nakanishi, S. -I. Nakai, A. Ishikawa, Q. Chang, T. Miyazaki, Y. Hirahara, T. Takahashi, R. Senda (2015) Isotopic evidence for a link between the Lyra Basin and Ontong Java Plateau, The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces, Geological Society of America Special Publications, 511, 251–269, doi:10.1130/2015.2511(14).
Shimizu, K., N. Shimizu, T. Sano, N. Matsubara, W. Sager (2013) Paleo-elevation and subsidence of ~145 Ma Shatsky Rise inferred from CO2 and H2O in fresh volcanic glass, Earth and Planetary Science Letters, 383, 37–44. doi: 10.1016/j.epsl.2013.09.023.
Sager, W W., J. Zhang, J. Korenaga, T. Sano, A. A. P. Koppers, M. Widdowson, J. J. Mahoney (2013), An immense shield volcano within the Shatsky Rise oceanic plateau, northwest Pacific Ocean, Nature Geoscience, 6, 976–981, doi:10.1038/ngeo1934.
Husen, A., R. Almeev, F. Holtz, J. Koepke, T. Sano, K. Mengel (2013), Geothermobarometry of basaltic glasses from the Tamu Massif, Shatsky Rise oceanic plateau, Geochemistry Geophysics Geosystems, 14, doi:10.1002/ggge.20231 (21 pages).
Miyoshi, M., T. Shinmura, H. Sumino, T. Sano, Y. Miyabuchi, Y. Mori, H. Inakura, K. Furukawa, K. Uno, T. Hasenaka, K. Nagao, Y. Arakawa, and J. Yamamoto (2013), Lateral magma intrusion from a caldera-forming magma chamber: Constraints from geochronology and geochemistry of volcanic products from lateral cones around the Aso caldera, SW Japan, Chemical Geology, 352, 202–210.
Shinjoe, H., Y. Orihashi, J. A. Naranjo, D. Hirata, T. Hasenaka, T. Fukuoka, T. Sano, and R. Anma (2013), Boron and other trace element constraints on the slab-derived component in Quaternary volcanic rocks from the Southern Volcanic Zone of the Andes, Geochemical Journal, 47, 185-199.
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Sano, T., K. Shimizu, A. Ishikawa, R. Senda, Q. Chang, J.-I. Kimura, M. Widdowson, and W. W. Sager (2012), Variety and origin of magmas on Shatsky Rise, northwest Pacific Ocean, Geochemistry Geophysics Geosystems, 13, Q08010, doi:10.1029/2012GC004235 (25 pages).
Sager, W.W., T. Sano, J. Geldmacher, and the IODP Expedition 324 Scientists (2011), IODP Expedition 324: Ocean Drilling at Shatsky Rise Gives Clues about Oceanic Plateau Formation, Scientific Drilling, 12, 24-31, doi: 10.2204/iodp.sd.12.03.2011.
Sano, T., T. Sakuyama, S. Ingle, S. Rodriguez, and T. Yamasaki (2011), Petrological relationships among lavas, dikes, and gabbros from Integrated Ocean Drilling Program Hole 1256D: Insight into the magma plumbing system beneath the East Pacific Rise, Geochemistry Geophysics Geosystems, 12, Q06013, doi:10.1029/2011GC003548 (26 pages).
Miyoshi, M., T. Shibata, M. Yoshikawa, T. Sano, T. Shimmura and T. Hasenaka (2011), Genetic relationship between post-caldera and caldera-forming magmas from Aso volcano, SW Japan: Constraints from Sr isotope and trace element compositions, Journal of Mineralogical and Petrological Sciences, 106, 114-119.
Sager, W.W., T. Sano, and J. Geldmacher (2011), How Do Oceanic Plateaus Form? Clues From Drilling at Shatsky Rise, EOS Transactions, American Geophysical Union, 92, 5, 37-38.
Sager, W.W., T. Sano, J. Geldmacher, and the IODP Expedition 324 Scientists (2010), Proceeding of the Integrated Ocean Drilling Program Volume 324: Tokyo (Integrated Ocean Drilling Program Management International Inc.). doi:10.2204/iodp.proc.324.2010.
Koppers, A.A.P., T. Sano, J.H. Natland, M. Widdowson, R. Almeev, A.R. Greene, D.T. Murphy, A. Delacour, M. Miyoshi, K. Shimizu, S. Li, N. Hirano, J. Geldmacher, and the Expedition 324 Scientists (2010), Massive basalt flows on the southern flank of Tamu Massif, Shatsky Rise: a reappraisal of ODP Site 1213 basement units, In Sager, W.W., T. Sano, J. Geldmacher (Editors), Proceeding of the Integrated Ocean Drilling Program Volume 324: Tokyo (Integrated Ocean Drilling Program Management International Inc.). doi:10.2204/iodp.proc.324.109.2010.
Miyoshi, M., M. Shimono, T. Hasenaka, T. Sano, Y. Mori, and T. Fukuoka (2010), Boron systematics of Hitatsu and Kirishima basaltic rocks from southern Kyushu, Japan, Geochemical Journal, 44, 359-369.
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Sager, W.W., T. Sano, and J. Geldmacher (2009), Testing plume and plate models of ocean plateau formation at Shatsky Rise, northwest Pacific Ocean, IODP Scientific Prospectus, 324. doi:10.2204/iodp.sp.324.2009.
Sano, T., M. Miyoshi, S. Ingle, N.R. Banerjee, M. Ishimoto, and T. Fukuoka (2008), Boron and Chlorine Contents of Upper Oceanic Crust, Basement Samples from IODP Hole 1256D, Geochemistry, Geophysics, Geosystems, 9, Q12O15, doi:10.1029/2008GC002182 (11 pages).
Miyoshi M., M. Shimono, T. Hasenaka, T. Sano, and T. Fukuoka (2008), Determination of boron contents in volcanic rocks by prompt-gamma ray analysis: an implication to magma genesis in Kyushu island, SW Japan, Journal of Radioanalytical and Nuclear Chemistry, 278, 343-347.
Miyoshi M, T. Fukuoka, T. Sano, and T. Hasenaka (2008), Subduction influence of Philippine Sea plate on the mantle beneath northern Kyushu, SW Japan: An examination of Boron contents in basaltic rocks, Journal of Volcanology and Geothermal Research, 171, 73-87.
Teagle, D.A.H., S. Umino,, J.C. Alt, S. Miyashita, N.R. Banerjee, D.S. Wilson, and IODP Expedition 309/312 Scientists (2006), Superfast spreading rate crust 2 and 3, Proceedings of the Integrated Ocean Drilling Program 309/312 Expedition Reports, College Station TX.
Sano T., T. Hasenaka, H. Sawahata, and T. Fukuoka (2006), Determination of Ti, K, Sm, and Gd Values in Geological Survey of Japan Reference Materials by Prompt Gamma Neutron Activation Analysis, Geostandards and Geoanalytical Research, 30, 31-36.
Wilson D.S., D.A.H. Teagle, J.C. Alt, N.R. Banerjee, S. Umino, S. Miyashita, G.D. Acton, R. Amma, S.R. Barr, A. Belghoul, J. Carlut, D.M. Christie, R.M. Coggon, K.M. Cooper, C. Cordier, L. Crispini, S.R. Durand, F. Einaudi, L. Galli, Y. Gao, J. Geldmacher, L.A. Gilbert, N.W. Hayman, E. Herrero-Bervera, N. Hirano, S. Holter, S. Ingle, S. Jiang, U. Kalberkamp, M. Kerneklian, J. Koepke, C. Laverne, H.L. Lledo Vasquez, J. Maclennan, S. Morgan, N. Neo, H.J. Nichols, S.-H. Park, M.K. Reichow, T. Sakuyama, T. Sano, R. Sandwell, B. Scheibner, C.E. Smith-Duque, S.A. Swift, P. Tartarotti, A.A. Tikku, M. Tominaga, E.A. Veloso, T. Yamasaki, S. Yamazaki, and C. Ziegler (2006), Drilling to gabbro in intact ocean crust, Science, 312, 1016-1020.
Sano T., T. Fukuoka, and T. Hasenaka (2004), Determination of chlorine contents in Geological Survey of Japan reference materials by prompt gamma neutron activation analysis, Geostandards and Geoanalytical Research, 28, 443-448.
Sano T., and S. Yamashita (2004), Experimental petrology of basement lavas from Ocean Drilling Program Leg 192: Implications for differentiation processes in Ontong Java Plateau magmas, In Fitton, J.G., Mahoney, J.J., Wallace, P.J., and Saunders, A.D. (Editors), Origin and Evolution of the Ontong Java Plateau, Geological Society, London, Special Publications, 229, 185-218.
Sano T., H. Naruse, T. Hasenaka, and T. Fukuoka (2004), Boron contents of Leg 192 sediments. In Fitton, J.G., Mahoney, J.J., Wallace, P.J., and Saunders, A.D. (Editors), Proceedings of the Ocean Drilling Program, Scientific Results, 192, College Station TX (6 pages).
Sano T., T. Fujii, S.S. Deshmukh, T. Fukuoka, and S. Aramaki (2001), Differentiation processes of Deccan Trap basalts: Contribution from geochemistry and experimental petrology, Journal of Petrology, 42, 2175-2195.
Mahoney J.J., J.G. Fitton, P.J. Wallace, and ODP Leg 192 Scientific Party (2001), Proceedings of the Ocean Drilling Program, Initial Reports, 192, College Station TX.
Sano T., T. Hasenaka, A. Shimaoka, C. Yonezawa, and T. Fukuoka (2001), Boron contents of Japan Trench sediments and Iwate basaltic lavas, Northeast Japan arc: Estimation of sediment-derived fluid contribution in mantle wedge, Earth and Planetary Science Letters, 186, 187-198.
Tatsumi, Y., K. Sato, T. Sano, R. Arai, and V.S. Prikhodko (2000), Transition from arc to intraplate magmatism associated with backarc rifting: Evolution of the Sikhote Alin volcanism, Geophysical Research Letters, 27, 1587-1590.
Sano T., T. Fukuoka, T. Hasenaka, C. Yonezawa, H. Matsue, and H. Sawahata (1999), Accurate and efficient determination of boron content in volcanic rocks by neutron induced prompt gamma-ray analysis, Journal of Radioanalytical and Nuclear Chemistry, 239, 613-617.
Sano T., and T. Fujii (1996), Chemical Variation of the Uncontaminated (Ambenali-like) Basalts of Deccan Traps, Gondwana Geological Magazine, Special Volume, 2, 301-310.
Deshmukh, S.S., T. Sano, T. Fujii, K.K.K. Nair, D.B. Yedeker, S. Umino, H. Iwamori, and S. Aramaki (1996), Chemical stratigraphy and geochemistry of the basalt flows from the central and eastern parts of the Deccan volcanic province of India, Gondwana Geological Magazine, Special Volume, 2, 145-170.
Yedekar, D.B., S. Aramaki, T. Fujii, and T. Sano (1996), Geochemical signature and stratigraphy of the Chhindwara-Jabalpur-Seoni-Mandla sector of the eastern Deccan volcanic province and problem of its correlation, Gondwana Geological Magazine, Special Volume, 2, 49-68.
Nair, K.K.K., S.S. Deshmukh, and T. Sano (1996), Stratigraphy and geochemistry of the Deccan basalts along Toranmal Section, Western Satpura region, Gondwana Geological Magazine, Special Volume, 2, 23-48.
Deshmukh, S.S., and T. Sano, K.K.K. Nair (1996), Geology and chemistry of the Deccan basalts of Chikaldara and Behramghat sections from the eastern part of the Deccan Trap province, India, Gondwana Geological Magazine, Special Volume, 2, 1-22.