Dynamics, Structure and Evolution of the Earth and Planets

Research Output 1978 2020

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2020

Decrease of the interplanetary magnetic field strength on the lunar dayside and over the polar region

Nishino, M. N., Saito, Y., Tsunakawa, H., Harada, Y., Takahashi, F., Yokota, S., Matsushima, M., Shibuya, H., Shimizu, H. & Miyashita, Y., Jan 1 2020, In : Icarus. 335, 113392.

Research output: Contribution to journalArticle

interplanetary magnetic fields
polar region
polar regions
solar wind
field strength

Tidal resonance of eigenmode oscillation in the early Earth's ocean and its acceleration effect on the Moon's orbital evolution

Motoyama, M., Tsunakawa, H. & Takahashi, F., Jan 1 2020, In : Icarus. 335, 113382.

Research output: Contribution to journalArticle

early Earth
moon
Moon
oceans
oscillation
2019
2 Citations (Scopus)

Ascent of migmatites of a high-temperature metamorphic complex due to buoyancy beneath a volcanic arc: a mid-Cretaceous example from the eastern margin of Eurasia

Miyazaki, K., Ikeda, T., Matsuura, H., Danhara, T., Iwano, H. & Hirata, T., Apr 13 2019, In : International Geology Review. 61, 6, p. 649-674 26 p.

Research output: Contribution to journalArticle

buoyancy
island arc
Cretaceous
migmatite
crust
Silicates
silicate melt
nucleation
bubble
silicates

Mekong river discharge and the east asian monsoon recorded by a coral geochemical record from Con Dao Island, Vietnam

Phan, T. T., Ishida, A., Chiang, H. W., Shen, C. C., Doan, L. D. & Watanabe, T., Jan 1 2019, In : GEOCHEMICAL JOURNAL. 53, 2, p. E1-E7

Research output: Contribution to journalArticle

Vietnam
monsoons
river discharge
Discharge (fluid mechanics)
rivers
3 Citations (Scopus)

Mercury’s anomalous magnetic field caused by a symmetry-breaking self-regulating dynamo

Takahashi, F., Shimizu, H. & Tsunakawa, H., Dec 1 2019, In : Nature communications. 10, 1, 208.

Research output: Contribution to journalArticle

automatic control
Magnetic Fields
broken symmetry
Convection
Magnetic fields

Micro-CT Scanning of Tests of Three Planktic Foraminiferal Species to Clarify DissolutionProcess and Progress

Iwasaki, S., Kimoto, K., Okazaki, Y. & Ikehara, M., Jan 1 2019, (Accepted/In press) In : Geochemistry, Geophysics, Geosystems.

Research output: Contribution to journalArticle

Open Access
Dissolution
Calcium Carbonate
Scanning
dissolving
scanning

Oman coral δ 18 O seawater record suggests that Western Indian Ocean upwelling uncouples from the Indian Ocean Dipole during the global-warming hiatus

Watanabe, T. K., Watanabe, T., Ishida, A., Pfeiffer, M. & Claereboudt, M. R., Dec 1 2019, In : Scientific reports. 9, 1, 1887.

Research output: Contribution to journalArticle

Open Access
Oman
Global Warming
Indian Ocean
Anthozoa
Seawater

Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean

Ikenoue, T., Kimoto, K., Okazaki, Y., Sato, M., Honda, M. C., Takahashi, K., Harada, N. & Fujiki, T., Aug 1 2019, In : Global Biogeochemical Cycles. 33, 8, p. 1146-1160 15 p.

Research output: Contribution to journalArticle

Open Access
twilight
particulate organic carbon
Organic carbon
Sorting
organic carbon

Seismic scatterers in the lower mantle near subduction zones

Kaneshima, S., May 16 2019, In : Geophysical Journal International. 218, 3, p. 1873-1891 19 p.

Research output: Contribution to journalArticle

Open Access
lower mantle
subduction zone
slab
Earth mantle
scattering
terrane
accretion
sedimentation
zircon
greenschist facies

Tourmaline in a Mesoarchean pelagic hydrothermal system: Implications for the habitat of early life

Ota, T., Aihara, Y., Kiyokawa, S., Tanaka, R. & Nakamura, E., Nov 1 2019, In : Precambrian Research. 334, 105475.

Research output: Contribution to journalArticle

Boron
tourmaline
hydrothermal system
boron
chert

Triassic marine Os isotope record from a pelagic chert succession, Sakahogi section, Mino Belt, southwest Japan

Nozaki, T., Nikaido, T., Onoue, T., Takaya, Y., Sato, K., Kimura, J. I., Chang, Q., Yamashita, D., Sato, H., Suzuki, K., Kato, Y. & Matsuoka, A., Jun 15 2019, In : Journal of Asian Earth Sciences: X. 1, 100004.

Research output: Contribution to journalArticle

Open Access
chert
Triassic
isotope
Anisian
Norian
2018
11 Citations (Scopus)

Array analyses of SmKS waves and the stratification of Earth's outermost core

Kaneshima, S., Mar 1 2018, In : Physics of the Earth and Planetary Interiors. 276, p. 234-246 13 p.

Research output: Contribution to journalArticle

Earth core
outer core
stratification
seismographs
seismograph
1 Citation (Scopus)

Bubble deformation in magma under transient flow conditions

Ohashi, M., Ichihara, M. & Toramaru, A., Sep 15 2018, In : Journal of Volcanology and Geothermal Research. 364, p. 59-75 17 p.

Research output: Contribution to journalArticle

transient flow
magma
bubble
bubbles
Confined flow

Data on recovery rates and external morphologies of zircon grains from mechanical and electrical pulverization of rock samples

Takehara, M., Horie, K., Hokada, T. & Kiyokawa, S., Aug 1 2018, In : Data in Brief. 19, p. 1537-1544 8 p.

Research output: Contribution to journalArticle

zircon
rock
heavy mineral
mineral
gabbro

Deformation path of amygdules in basic schists in Itoshima area, northern Kyushu, Japan

Yamasaki, Y. & Ikeda, T., Jul 1 2018, In : Island Arc. 27, 4, e12246.

Research output: Contribution to journalArticle

contact metamorphism
schist
plagioclase
plane strain
strain analysis
1 Citation (Scopus)

Electromagnetic Ion Cyclotron Waves Detected by Kaguya and Geotail in the Earth's Magnetotail

Nakagawa, T., Nishino, M. N., Tsunakawa, H., Takahashi, F., Shibuya, H., Shimizu, H., Matsushima, M. & Saito, Y., Feb 1 2018, In : Journal of Geophysical Research: Space Physics. 123, 2, p. 1146-1164 19 p.

Research output: Contribution to journalArticle

geomagnetic tail
magnetotail
Cyclotrons
cyclotrons
Earth (planet)
corundum
Antarctic regions
plagioclase
hornblende
coronas

Geochemical and Microstructural Signals in Giant Clam Tridacna maxima Recorded Typhoon Events at Okinotori Island, Japan

Komagoe, T., Watanabe, T., Shirai, K., Yamazaki, A. & Uematu, M., May 2018, In : Journal of Geophysical Research: Biogeosciences. 123, 5, p. 1460-1474 15 p.

Research output: Contribution to journalArticle

Tridacna maxima
shell (molluscs)
typhoon
clams
Japan
2 Citations (Scopus)

Inference of viscosity jump at 670 km depth and lower mantle viscosity structure from GIA observations

Nakada, M., Okuno, J. & Irie, Y., Mar 1 2018, In : Geophysical Journal International. 212, 3, p. 2206-2225 20 p.

Research output: Contribution to journalArticle

lower mantle
inference
Earth mantle
viscosity
adjusting
2 Citations (Scopus)

Late Miocene-mid-Pliocene tectonically induced formation of the semi-closed Japan Sea, inferred from seawater Nd isotopes

Kozaka, Y., Horikawa, K., Asahara, Y., Amakawa, H. & Okazaki, Y., Oct 1 2018, In : Geology. 46, 10, p. 903-906 4 p.

Research output: Contribution to journalArticle

Pliocene
Miocene
isotope
seawater
deep water
2 Citations (Scopus)

Monazite behaviour and time-scale of metamorphic processes along a low-pressure/ high-temperature field gradient (Ryoke belt, SW Japan)

Skrzypek, E., Kato, T., Kawakami, T., Sakata, S., Hattori, K., Hirata, T. & Ikeda, T., Jun 1 2018, In : Journal of Petrology. 59, 6, p. 1109-1144 36 p.

Research output: Contribution to journalArticle

monazite
low pressure
Japan
Temperature distribution
temperature distribution
11 Citations (Scopus)

New insight into disturbance of U-Pb and trace-element systems in hydrothermally altered zircon via SHRIMP analyses of zircon from the Duluth Gabbro

Takehara, M., Horie, K., Hokada, T. & Kiyokawa, S., May 5 2018, In : Chemical Geology. 484, p. 168-178 11 p.

Research output: Contribution to journalArticle

ion microprobe
Trace Elements
gabbro
hydrothermal alteration
zircon
3 Citations (Scopus)

Seismic scatterers in the mid-lower mantle beneath Tonga-Fiji

Kaneshima, S., Jan 1 2018, In : Physics of the Earth and Planetary Interiors. 274, p. 1-13 13 p.

Research output: Contribution to journalArticle

lower mantle
Earth mantle
scattering
P-wave
wave scattering

Seismological Evidence for Laterally Heterogeneous Lowermost Outer Core of the Earth

Ohtaki, T., Kaneshima, S., Ichikawa, H. & Tsuchiya, T., Dec 1 2018, In : Journal of Geophysical Research: Solid Earth. 123, 12, p. 10,903-10,917

Research output: Contribution to journalArticle

F region
outer core
Earth (planet)
light elements
inner core
1 Citation (Scopus)

Theory for Deducing Volcanic Activity From Size Distributions in Plinian Pyroclastic Fall Deposits

Iriyama, Y., Toramaru, A. & Yamamoto, T., Mar 2018, In : Journal of Geophysical Research: Solid Earth. 123, 3, p. 2199-2213 15 p.

Research output: Contribution to journalArticle

volcanology
Deposits
grain size
deposits
Ashes
2017
3 Citations (Scopus)

A high-T metamorphic complex derived from the high-P Suo metamorphic complex in the Omuta district, northern Kyushu, southwest Japan

Miyazaki, K., Ikeda, T., Matsuura, H., Danhara, T., Iwano, H. & Hirata, T., Sep 1 2017, In : Island Arc. 26, 5, e12208.

Research output: Contribution to journalArticle

zircon
metamorphism
protolith
island arc
Jurassic
3 Citations (Scopus)
Undercooling
lava
plagioclase
Crystallization
obsidian
3 Citations (Scopus)

Estimate of the Rigidity of Eclogite in the Lower Mantle From Waveform Modeling of Broadband S-to-P Wave Conversions

Haugland, S. M., Ritsema, J., Kaneshima, S. & Thorne, M. S., Dec 16 2017, In : Geophysical Research Letters. 44, 23, p. 11,778-11,784

Research output: Contribution to journalArticle

eclogite
lower mantle
rigidity
P waves
P-wave
6 Citations (Scopus)

Kaguya observations of the lunar wake in the terrestrial foreshock: Surface potential change by bow-shock reflected ions

Nishino, M. N., Harada, Y., Saito, Y., Tsunakawa, H., Takahashi, F., Yokota, S., Matsushima, M., Shibuya, H. & Shimizu, H., Sep 1 2017, In : Icarus. 293, p. 45-51 7 p.

Research output: Contribution to journalArticle

foreshock
bows
wakes
lunar surface
moon
3 Citations (Scopus)

Metamorphic condition of a regional metamorphic complex in the Omuta district in northern Kyushu, southwest Japan

Ikeda, T., Miyazaki, K. & Matsuura, H., Sep 1 2017, In : Island Arc. 26, 5, e12204.

Research output: Contribution to journalArticle

regional metamorphism
feldspar
crustal thinning
contact metamorphism
granodiorite
1 Citation (Scopus)

Miocene dislocations during the formation of the Sea of Japan basin: Case study of Tsushima Island

Golozubov, V. V., Kasatkin, S. A., Yokoyama, K., Tsutsumi, Y. & Kiyokawa, S., Jul 1 2017, In : Geotectonics. 51, 4, p. 412-427 16 p.

Research output: Contribution to journalArticle

dislocation
Miocene
basin
graben
rifting
7 Citations (Scopus)

Reconstruction of the multielement apparatus of the earliest Triassic conodont, Hindeodus parvus, using synchrotron radiation X-ray micro-tomography

Agematsu, S., Uesugi, K., Sano, H. & Sashida, K., Nov 2017, In : Journal of Paleontology. 91, 6, p. 1220-1227 8 p.

Research output: Contribution to journalArticle

conodont
tomography
Triassic
claystone
bedding plane
1 Citation (Scopus)

Timescale of magma chamber processes revealed by U–Pb ages, trace element contents and morphology of zircons from the Ishizuchi caldera, Southwest Japan Arc

Takehara, M., Horie, K., Tani, K., Yoshida, T., Hokada, T. & Kiyokawa, S., Mar 1 2017, In : Island Arc. 26, 2, e12182.

Research output: Contribution to journalArticle

caldera
magma chamber
zircon
rhyolite
trace element

Uncertainty in pressure difference of empirical geobarometers

Ikeda, T., Miyazaki, K. & Matsuura, H., Jan 1 2017, In : Journal of Mineralogical and Petrological Sciences. 112, 4, p. 175-179 5 p.

Research output: Contribution to journalArticle

thermodynamic property
enthalpy
temperature gradients
thermodynamic properties
examination
1 Citation (Scopus)

Upper Guadalupian to Lower Lopingian Latentifistularian (Radiolaria) Interval Zones of the Mino Belt in the Mt. Funabuseyama Area, Central Japan

Kuwahara, K. & Sano, H., Oct 1 2017, In : Paleontological Research. 21, 4, p. 422-440 19 p.

Research output: Contribution to journalArticle

Lopingian
Guadalupian
radiolaria
Japan
rocks
2016
8 Citations (Scopus)

Bering Sea radiolarian biostratigraphy and paleoceanography at IODP Site U1341 during the last four million years

Ikenoue, T., Okazaki, Y., Takahashi, K. & Sakamoto, T., Mar 1 2016, In : Deep-Sea Research Part II: Topical Studies in Oceanography. 125-126, p. 38-55 18 p.

Research output: Contribution to journalArticle

paleoceanography
biostratigraphy
deep water formation
intermediate water
sea
10 Citations (Scopus)

Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa

Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y. & Matsuoka, A., Jul 8 2016, In : Scientific reports. 6, 29609.

Research output: Contribution to journalArticle

Open Access
bolide
Norian
Triassic
extinction
silica
9 Citations (Scopus)

Ecophysiology of Zetaproteobacteria associated with shallow hydrothermal iron-oxyhydroxide deposits in Nagahama Bay of Satsuma Iwo-Jima, Japan

Hoshino, T., Kuratomi, T., Morono, Y., Hori, T., Oiwane, H., Kiyokawa, S. & Inagaki, F., Jan 1 2016, In : Frontiers in Microbiology. 6, JAN, 1554.

Research output: Contribution to journalArticle

Japan
Iron
Polyphosphates
Bacteria
rRNA Genes
8 Citations (Scopus)

Effects of soil erosion and anoxic–euxinic ocean in the Permian–Triassic marine crisis

Kaiho, K., Saito, R., Ito, K., Miyaji, T., Biswas, R., Tian, L., Sano, H., Shi, Z., Takahashi, S., Tong, J., Liang, L., Oba, M., Nara, F. W., Tsuchiya, N. & Chen, Z. Q., Jan 1 2016, In : Heliyon. 2, 8, e00137.

Research output: Contribution to journalArticle

soil erosion
extinction
ocean
intermediate water
environmental stress
5 Citations (Scopus)

Inference of mantle viscosity for depth resolutions of GIA observations

Nakada, M. & Okuno, J., Nov 1 2016, In : Geophysical Journal International. 207, 2, p. 719-740 22 p., ggw301.

Research output: Contribution to journalArticle

inference
Earth mantle
viscosity
adjusting
Viscosity
6 Citations (Scopus)
paleoecology
biogeography
limestone
reefs
reef
27 Citations (Scopus)

Performance benchmarks for a next generation numerical dynamo model

Matsui, H., Heien, E., Aubert, J., Aurnou, J. M., Avery, M., Brown, B., Buffett, B. A., Busse, F., Christensen, U. R., Davies, C. J., Featherstone, N., Gastine, T., Glatzmaier, G. A., Gubbins, D., Guermond, J. L., Hayashi, Y. Y., Hollerbach, R., Hwang, L. J., Jackson, A., Jones, C. A. & 17 others, Jiang, W., Kellogg, L. H., Kuang, W., Landeau, M., Marti, P., Olson, P., Ribeiro, A., Sasaki, Y., Schaeffer, N., Simitev, R. D., Sheyko, A., Silva, L., Stanley, S., Takahashi, F., Takehiro, S. I., Wicht, J. & Willis, A. P., May 1 2016, In : Geochemistry, Geophysics, Geosystems. 17, 5, p. 1586-1607 22 p.

Research output: Contribution to journalArticle

Numerical models
central processing units
Earth core
Earth (planet)
Supercomputers
3 Citations (Scopus)

Progressive enrichment of arc magmas caused by the subduction of seamounts under Nishinoshima volcano, Izu-Bonin Arc, Japan

Sano, T., Shirao, M., Tani, K., Tsutsumi, Y., Kiyokawa, S. & Fujii, T., Jun 1 2016, In : Journal of Volcanology and Geothermal Research. 319, p. 52-65 14 p.

Research output: Contribution to journalArticle

seamounts
Volcanoes
seamount
volcanoes
Japan
9 Citations (Scopus)

Revisiting the high temperature metamorphic field gradient of the Ryoke Belt (SW Japan): New constraints from the Iwakuni-Yanai area

Skrzypek, E., Kawakami, T., Hirajima, T., Sakata, S., Hirata, T. & Ikeda, T., Sep 1 2016, In : LITHOS. 260, p. 9-27 19 p.

Research output: Contribution to journalArticle

Rocks
schist
Tectonics
gneiss
Temperature
2 Citations (Scopus)

Sedimentary PGE signatures in the Late Triassic ejecta deposits from Japan: Implications for the identification of impactor

Sato, H., Shirai, N., Ebihara, M., Onoue, T. & Kiyokawa, S., Jan 15 2016, In : Palaeogeography, Palaeoclimatology, Palaeoecology. 442, p. 36-47 12 p.

Research output: Contribution to journalArticle

platinum
claystone
platinum group element
ejecta
Triassic
13 Citations (Scopus)
Barbados
gulfs
Sea level
sea level
Last Glacial Maximum
2015
5 Citations (Scopus)

Electrons on closed field lines of lunar crustal fields in the solar wind wake

Nishino, M. N., Saito, Y., Tsunakawa, H., Takahashi, F., Fujimoto, M., Harada, Y., Yokota, S., Matsushima, M., Shibuya, H. & Shimizu, H., Apr 1 2015, In : Icarus. 250, p. 238-248 11 p.

Research output: Contribution to journalArticle

wakes
solar wind
plasma
electron
antipodes
1 Citation (Scopus)

ELF magnetic fluctuations detected by kaguya in deepest lunar wake associated with type-II protons

Nakagawa, T., Nakashima, T., Wada, T., Tsunakawa, H., Takahashi, F., Shibuya, H., Shimizu, H., Matsushima, M. & Saito, Y., Dec 30 2015, In : earth, planets and space. 67, 1, 50.

Research output: Contribution to journalArticle

extremely low frequencies
wakes
magnetic field
solar wind
protons