Table of Contents

Map of Kurayoshi City i

Bus time table iii

Scientific Program iv

Abstracts of Papers v

1 Imaging the mantle 1

1.1 Yoshio Fukao: The upper and lower mantle transition region as temporal reservoirs

of subducted slabs and rising plumes . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Guy Masters, Gabi Laske: Seismological constraints on geochemical reservoirs? . . 4

1.3 Mamoru Kato 1 , and Hitoshi Kawakatsu 2 : Seismological in situ estimation of density

jumps across the transition zone discontinuities beneath Japan . . . . . . . . . . . . 5

1.4 Hitoshi Kawakatsu: Seismic discontinuities/scatterers in the lower mantle . . . . . . 6

1.5 Frank D. Stacey: Thermal vs compositional interpretations of lower mantle tomography 7

1.6 Dapeng Zhao: A new global tomography of the earth: structure of mantle plumes . . 8

2 Formation and evolution of geochemical reservoirs 9

2.1 Stanley R. Hart: Formation and evolution of geochemical mantle domains . . . . . . 11

2.2 M. Hirschmann 1 , T. Kogiso 1 , and Daniel J. Frost 2 : A petrologic view of the charac-teristics

of mantle geochemical reservoirs . . . . . . . . . . . . . . . . . . . . . . . 13

2.3 Ian H. Campbell: The relationship between continental and oceanic crust formation

and the development of the depleted mantle . . . . . . . . . . . . . . . . . . . . . . 15

2.4 P.R. Castillo 1 , R.U. Solidum 1 ,2 , and R.S. Punongbayan 2 : Origin of high-Nb basalts

from the Sulu Arc, southern Philippines . . . . . . . . . . . . . . . . . . . . . . . . 16

2.5 Takeshi Hanyu, Tibor J. Dunai, Gareth R. Davies, Ichiro Kaneoka, Susumu Nohda,

and Kozo Uto: Evidence for distinct primitive mantle sources; a noble gas study of

the Reunion hotspot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.6 Manuel Moreira: Noble gases and the primitive reservoir . . . . . . . . . . . . . . . 18

2.7 Katsura Kobayashi and Eizo Nakamura: Geochemical evolution of Akagi volcano,

northeast Japan: implications for interaction between island arc magma and lower

crust, and generation of isotopically variable magmas. . . . . . . . . . . . . . . . . . 21

2.8 Katsura Kobayashi 1 , Takuya Moriguti 1 , Ryoji Tanaka 1 , Kenji Shimizu 2 , Eizo Nakamura 1 :

Analytical procedure for the measurement of lithium and boron isotope composition

by High Resolution Secondary Ion Mass Spectrometer and its Application . . . . . . 22

2.9 Takeshi Kuritani and Eizo Nakamura: A simple method for precise isotope analysis

of ng-level Pb for natural rock samples . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.10 Naoko Matsumoto and Masao Kitamura: Chemical compositions of a binary dilute

solid solution during growth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.11 Takuya Moriguti and Eizo Nakamura: Precise Li isotope analysis by thermal ioniza-tion

mass spectrometry (TIMS) using lithium phosphate as an ion source material and

highly-yield lithium separation from natural samples . . . . . . . . . . . . . . . . . 25

2.12 Takuya Moriguti and Eizo Nakamura: Li-B-Pb isotope systematic study of Izu arc

volcanic rocks: implications for crust-mantle recycling at subduction zone . . . . . . 26

2.13 Takuya Moriguti and Eizo Nakamura: Li isotope variation in quaternary basaltic rocks

in northeastern Japan arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.14 Chie Sakaguchi and Eizo Nakamura: Chemical and isotopic evolution of the Allende

meteorite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.15 K. Shimizu 1 *, E. Nakamura 1 , and S. Maruyama 2 : Petrology, geochemistry and garnet

and pyroxene xenocrysts of Belingwe volcanics, Zimbabwe - indisputable evidence

for crustal contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

2.16 Hiroyuki Takei, Tetsuya Yokoyama, Akio Makishima and Eizo Nakamura: Formation

and suppression of AlF during HF digestion of rock samples in Teflon bomb for

precise trace element analyses by ICP-MS and ID-TIMS . . . . . . . . . . . . . . . 32

2.17 Hiroyuki Takei and Eizo Nakamura: Origin of the ore-forming fluids in the Hishikari

gold deposits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.18 Tetsuya Yokoyama, Akio Makishima, Eizo Nakamura: Evaluation of coprecipitation

of incompatible trace elements with fluoride during silicate rock dissolution by acid

digestion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2.19 Tetsuya Yokoyama, Akio Makishima, Eizo Nakamura: Separation of thorium and

uranium from silicate rock samples using two commercial extraction chromatographic

resins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2.20 Tetsuya Yokoyama, Akio Makishima, Eizo Nakamura: Precise analysis of 234 U/238 U

ratio using UO +

2 ion with TIMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2.21 Tetsuya Yokoyama, Eizo Nakamura: Precise determination of ferrous iron in silicate

rocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

2.22 Tetsuya Yokoyama, Katsura Kobayashi, Takeshi Kuritani, Eizo Nakamura: Mantle

metasomatism and rapid melt ascent beneath Miyakejima volcano: evidence from

238 U-230 Th disequilibrium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2.23 Tomohiro Usui 1 , Eizo Nakamura 1 , Katsura Kobayashi 1 , Shigenori Maruyama 2 and

Herwart Helmstaedt 3 : Petrology and trace element geochemistry of eclogite xenoliths

from the Colorado Plateau . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

2.24 Tomohiro Usui, Katsura Kobayashi and Eizo Nakamura: Preparation of reliable zir-con

standard for U-Pb dating method by HR-SIMS . . . . . . . . . . . . . . . . . . 47

2.25 Eizo Nakamura and Toshio Nakano: Trace element migration associated with evolu-tion

of metamorphic fluid during subduction zone-related metamorphism . . . . . . . 49

2.26 Eizo Nakamura, Masaaki Tanimoto, Takeshi Kuritani and Masako Yoshikawa: Geo-chemical

evolution of the Horoman peridotite complex revised by incorporation of

lead isotope systematics: Implications for melt extraction, metasomatism, and com-positional

layering in the mantle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2.27 Gray E. Bebout 1 , and Eizo Nakamura: Record in metamorphic tourmalines of subduction-zone

devolatilization and boron cycling . . . . . . . . . . . . . . . . . . . . . . . . 51

2.28 Toshio Nakano and Eizo Nakamura: Boron isotope geochemistry of metasedimentary

rocks and tourmalines in a subduction-zone metamorphic suite . . . . . . . . . . . . 53

2.29 Akio Makishima, Mayumi Nakanishi and Eizo Nakamura: Simultaneous determina-tion

of Ru, Pd, Re, Os, Ir and Pt contents and 187 Os/188 Os ratios in geological samples

using a new anion exchange chromatographic procedure . . . . . . . . . . . . . . . 54

2.30 Estelle F. Rose, A. Makishima, E. Nakamura: Major and rare earth elements geo-chemistry

of the Icelandic Plume: an island-wide approach for source determination . 55

2.31 Sophie Alves 1 , Pierre Schiano 2 , Bernard Bourdon 3 , Claude J. All` egre 3 : Magma for-mation

at Saba Island, Lesser Antilles: a numerical model for mantle wedge-slab

mixing according to osmium data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3 High pressure mineral physics 59.

3.1 Takehiko Yagi: Developments and problems in laboratory high pressure experiments 61

3.2 Eiji Ito: Recent developments in high pressure mineral physics experiments using

sintered diamond anvils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3.3 Hitoshi Yamada 1 , Tomoo Katsura 1 , Toru Shinmei 1 , Atsushi Kubo 1 , Osamu Nishikawa 1 ,

Maoshuang Song 1 , Eiji Ito 1 , Kenichi Funakoshi 2 : In situ determination of the olivine-modified

spinel phase boundary in the system Mg¼ñêôœ`SiO -Fe¼ñêôœ`SiO .......... 61

3.4 Masaki Akaogi 1 *, Akira Tanaka 1 , and Eiji Ito 2 : Garnet-ilmenite-perovskite transi-tions

in the system Mg Si O$B!H!-(B¬–$B!I(B²ª›¼ñêôœ`-Mg Al¼ñêôœ`Si O$B!H!-(B¬–$B!I(B²ª›¼ñêôœ`: phase equilibria, calorimetry and ap-plication

to the mantle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

3.5 Masanori Matsui: MD simulation of the density and P- and S-wave velocity jumps

across the 410km and 660km seismic discontinuities . . . . . . . . . . . . . . . . . 66

3.6 Kiyoshi Fujino 1 *, Nobuyoshi Miyajima 1 , Yohei Sasaki 1 , Reki Odawara 1 , Hisayuki

Ogawa 1 , Nagayoshi Sata 2 , Takehiko Yagi 2 : Mineralogy of the lower mantle by

the combined method of a laser-heated diamond anvil cell experiment and analyti-cal

transmission electron microscopy . . . . . . . . . . . . . . . . . . . . . . . . . . 67

3.7 S. Ono 1 , E. Ito 2 : Mineralogy of subducted basaltic crust (MORB) in the lower mantle 69

3.8 Tetsuo Irifune, Yuichiro Sueda, Takeshi Sanehira, Hisanobu Naka, Toru Inoue, Yuji

Higo, Takayuki Ueda, Ken-ichi Funakoshi, and Wataru Utsumi: In situ X-ray diffrac-tion

measurements for some mantle minerals to 40 GPa using a combination of syn-chrotron

radiation and multianvil apparatus with sintered diamond anvils . . . . . . . 71

3.9 Atsushi Kubo, Eiji Ito, Tomoo Katsura, Toru Shinmei, Hitoshi Yamada, Osamu Nishikawa,

Maoshuang Song, Kenichi Funakoshi: Exploration of ƒÀ -Fe using sintered diamond

anvils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3.10 Satoru Urakawa, Masayuki Hasegawa, Junji Yamakawa, Ken-ichi Funakoshi, Wataru

Utsumi: High-pressure phase relationships of FeS . . . . . . . . . . . . . . . . . . . 75

3.11 Yoshitaka Aizawa: Experimental determination of compressional wave velocity of

olivine aggregate at 1 GPa up to 1273 K . . . . . . . . . . . . . . . . . . . . . . . . 76

3.12 N. Mayama, I. Suzuki, T. Katsura, A. Yoneda, I. Ohno: Temperature dependence of

elastic moduli of polycrystalline wadsleyite and ringwoodite . . . . . . . . . . . . . 77

3.13 Takaya Nagai, Koichi Kittaka, Takamitsu Yamanaka: X-ray diffraction study of CaO

at high pressure and temperature: equation of state of CaO . . . . . . . . . . . . . . 78

3.14 Yu Nishihara, Eiichi Takahashi, Tomohiro Iguchi, Keisuke Nakayama, Kyoko Mat-sukage,

Miki Shirasaka and Takumi Kikegawa: Thermal equation of state of an om-phacite

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

3.15 Naohisa Hirao, Tadashi Kondo, Eiji Ohtani, and Takumi Kikegawa: Static compres-sion

of Fe-Si alloy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

3.16 Taku Tsuchiya and Katsuyuki Kawamura: Theoretical estimations of contribution of

electrons to the thermal expansion of Au and Pt metals . . . . . . . . . . . . . . . . 81

3.17 Masahiro Osako 1 , Eiji Ito 2 and Akira Yoneda 2 : Thermal diffusivity and thermal con-ductivity

of olivine and garnet under pressures up to 8 GPa and at temperatures up to

1000 K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

3.18 Akira Yoneda: Non-hydrostatic thermodynamics of anisotropic materials: geological

implications for pressure solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

3.19 Christian Holzapfel 1 , D.C. Rubie 1 , S. Chakraborty 2 , F. Langenhorst 1 , D.J. Frost 1 :

Rates of cation diffusion in olivine and silicate perovskite under mantle conditions . 88

3.20 KT Koga, MJ Walter, E Nakamura, and K Kobayashi: Carbon self-diffusion in diamond 90

3.21 Osamu Nishikawa: Stored strains and boundary characters of dynamically recrystal-lized

quartz aggregates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

3.22 Masami Kanzaki: In-situ observation of plastic deformation at high pressure and tem-perature:

A preliminary study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

3.23 D. Sakamoto, A. Yoshiasa, O. Ohtaka, T. Yamanaka and K. Ota: Conduction mech-anism

of fayalite and gamma-Fe¼ñêôœ`SiO : electrical conductivity jump by olivine-spinel

transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

3.24 Nobuyoshi Miyajima 1 , Falko Langenhorst 1 , Daniel Frost 1 , Dave Rubie 1 and Takehiko

Yagi 2 : Electron energy-loss spectroscopy of garnet-perovskite high-pressure assem-blages

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

3.25 X. Xue, T. Kawamoto, M. Kanzaki: NMR evidence for a new water dissolution

mechanism in depolymerized silicate melts: results for hydrous diopside composition 99

3.26 X. Xue and M. Kanzaki: Ab initio calculation of the 17 O and 1 H NMR parameters for

various OH groups: Implications to the speciation and dynamics of dissolved water

in silicate glasses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

3.27 T. Tsujimura (1) , X. Xue (2) , M. Kanzaki (2) , A. Kitakaze (1) and Y. Kudoh (1) : The effect

of sulfur on silicate network structure in sodium silicate glasses . . . . . . . . . . . . 101

3.28 Shigeru Yamashita: Water speciation in basaltic melts: constraints from water solu-bility

measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

3.29 Tomohiro Iguchi, Eiichi Takahashi, Yu Nishihara: Pressure dependence of the emf of

thermocouples: Comparison of W-Re and Pt-Rh thermocouples with P-measurements

by in situ X-ray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

3.30 M. Song , K. Aoki, H. Yamawaki, H. Fujihisa, and M. Sakashita: Infrared Obser-vation

on Low Temperature Phase Transformations of Ice . . . . . . . . . . . . . . . 104

4 Dehydration of subducting slabs and water storage in the mantle 107

4.1 Max W. Schmidt: Dehydration vs. melting vs. dissolution: Where and how to gener-ate

a mobile component during subduction . . . . . . . . . . . . . . . . . . . . . . . 109

4.2 Eiji Ohtani: Circulation and Redisribution of Water in the Earth$B!G(Bs Interior . . . . . . 111

4.3 Ganesha Atni Venkatramiah, J.A.K. Tareen: An experimental study on the Mg-Al

granulites and production of granitic melts in K¼ñêôœ`O-MgO-Al¼ñêôœ`O -SiO¼ñêôœ`-H¼ñêôœ`O system . . 112

4.4 Harry W. Green, II: Earthquakes at depth, their enabling mineral reactions, and trans-port

of H¼ñêôœ`O into the deep mantle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

4.5 Dapeng Zhao: Slab dehydration and earthquakes: Seismological evidence . . . . . . 116

4.6 Hikaru Iwamori: Transportation of H¼ñêôœ`O and melting in subduction zones . . . . . . 117

4.7 Tomoaki Morishita, Shoji Arai, Akihiro Tamura: Apatite concentration in the Finero

phlogopite-peridotite, Italian Western Alps, as the late product of subduction-related

mantle metasomatism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

4.8 Hiroyuki Kagi: High internal pressure retained in fluid inclusions of mantle-derived

materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

4.9 Tatsuhiko Kawamoto and Kyoko Matsukage: In situ observation of supercritical be-haviors

between H¼ñêôœ`O fluids and subduction zone magmas. . . . . . . . . . . . . . . 121

4.10 Robert P. Rapp 1 and N. Shimizu: Geochemical Consequences of Deep Subduction of

Oceanic Crust: Insights from Melting Experiments on Hydrous Metabasalt at 3-16 GPa122

4.11 Miki Shirasaka and Eiichi Takahashi: The fate of subducted carbonate within oceanic

crusts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

4.12 Joseph R. Smyth 1 *, Daniel J. Frost 2 : An Experimental Study of the Effect of Water

on the 410-km Discontinuity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

4.13 Toru Inoue, Yuji Higo, Takayuki Ueda, Yasutika Tanimoto and Tetsuo Irifune:

The effect of water on the high-pressure phase boundaries in the system Mg¼ñêôœ`SiO -Fe¼ñêôœ`SiO ......................................... 128

4.14 G.C.M Richard, M. Monnereau: Is the transition zone a water reservoir ? . . . . . . 130

4.15 Motohiko Murakami, Kei Hirose, Hisayoshi Yurimoto, Satoru Nakashima: Solubil-ity

of water in lower mantle minerals . . . . . . . . . . . . . . . . . . . . . . . . . . 132

4.16 Tomoo Katsura, Kiyoshi Fujita , and Keishi Shinoda : Electrical conductivity of

hydrous materials at high pressures and high temperatures. . . . . . . . . . . . . . . 133

5 Magmatic differentiation and the evolution of the mantle and core 135

5.1 E. Takahashi 1 , K. Nakajima 1 , R. Takeguchi 1 , K. Shinozaki 1 , Ren Zhang-Young 1 ,R.

Tanaka 2 and E. Nakamura 2 : Melt Generation in the Hawaiian Plume . . . . . . . . . 137

5.2 B.J. Wood: Mantle composition and conditions of core formation . . . . . . . . . . . 140

5.3 Takeshi Kuritani: Boundary layer fractionation constrained by differential informa-tion

from the Kutsugata lava flow, Rishiri Volcano, Japan . . . . . . . . . . . . . . . 141

5.4 Ulrich Faul: Constraints on Porosity in Partially Molten Regions in the Upper Mantle

from Permeability Measurements and U-series Modeling . . . . . . . . . . . . . . . 142

5.5 Ryoji Tanaka and Eizo Nakamura: Evidence for slab tear and the related magmatism

beneath the northwestern El Salvador, Central America . . . . . . . . . . . . . . . . 144

5.6 Ryoji Tanaka, Eizo Nakamura, Eiichi Takahashi: Geochemical evolution of Koolau

Volcano, Hawaii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

5.7 Masaaki Obata, Eiichi Takazawa: A possible discontinuous behavior of melt per-colation

in partially molten mantle and its implication to compositional layering in

orogenic lherzolites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

5.8 Yuki Asahara, Eiji Ohtani: The role of water in generation of komatiite magma . . . 147

5.9 Eizo Nakamura 1 , Toshihiro Suzuki 2 , Katsura Kobayashi 1 , Akio Makishima 1 and Masaki

Akaogi 2 : Determination of trace element partitioning between majorite and silicate

melt in the primitive mantle composition at pressure of 15 GPa . . . . . . . . . . . . 148

5.10 E. Ito, A. Kubo, T. Katsura, and M. J. Walter: Melting of peridotite under lower

mantle conditions and its implication to differentiation of a deep magma ocean . . . 150

5.11 M. Walter: Core formation in a reduced magma ocean: new constraints from W, P, Ni

andCo.......................................... 152

5.12 D.C. Rubie 1 , C. Holzapfel 1 , J. Reid 1 , S. Fortenfant 1 , H.J. Melosh 2 , B.T. Poe 1 , D.J.

Frost 1 , K. Righter 2 : Mechanisms of metal transport during formation of the earth$B!G(Bs

core: constraints from the kinetics of metal-silicate reactions . . . . . . . . . . . . . 154

5.13 H. Terasaki 1 , T. Kato 1 , S. Urakawa 2 , K. Funakoshi 3 , A. Suzuki 4 ,

K. Sato 5 , M. Hasegawa 2 : Effect of Light Elements on Viscosity of Liquid Iron-Alloy 156

5.14 Takashi Yoshino, Michael J. Walter and Tomoo Katsura: Critical melt fraction for

percolation of core-forming materials . . . . . . . . . . . . . . . . . . . . . . . . . 158

5.15 Tadahiro Hatakeyama and Masaru Kono: Geomagnetic field model for the last 5 my

and conditions at core-mantle boundary . . . . . . . . . . . . . . . . . . . . . . . . 160

6 Future Perspectives 161

6.1 Ho-kwang Mao: Future perspectives on high-pressure experimental geophysics and

geochemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

6.2 Dave Rubie: Title to be announced . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

6.3 S. Honda 1 and M. Yoshida 2 : Mantle convection as a tool for understanding the links

among the various geological phenomena . . . . . . . . . . . . . . . . . . . . . . . 163

6.4 Takamitsu Yamanaka, A. Yoshiasa, O. Otaka and N. Nagai: High-pressure crystal-lography

in mineral physics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

6.5 Masaru Kono: Dynamo process in the core under varying energy flow conditions . . 167

6.6 Eizo Nakamura, Akio Makishima, Takuya Moriguti, Katsura Kobayashi, Chie Sak-aguchi,

Tetsuya Yokoyama, Ryoji Tanaka, Takeshi Kuritani & Hiroyuki Takei: Com-prehensive

geochemical analyses of extremely small amounts of terrestrial and ex-traterrestrial

materials for sample-return missions . . . . . . . . . . . . . . . . . . . 168

6.7 Akio Makishima, Mayumi Nakanishi and Eizo Nakamura: Simultaneous determina-tion

of Ru, Pd, Re, Os, Ir and Pt contents and 187 Os/188 Os ratios in geological samples

using a new anion exchange chromatographic procedure . . . . . . . . . . . . . . . 169

6.8 Katsura Kobayashi, Tomohiro Usui and Eizo Nakamura: Zircon age dating by dy-namic

multi-collection method using high resolution secondary ion mass spectrometer 170

List of Participants 172

Front cover: The National Treasure "Nageire-do" in Misasa Town built in 8th century

on a precipitous flank of Mt. Mitoku-san.