研究等業績 - 原著論文 - 福山　繭子

Tracking HFSE associated with high salinity fluid during HP metamorphism in the Zavkhan Terrane, Western Mongolia

Bayarbold M.

Lithos ( Lithos )  490-491   2024年12月  [査読有り]

研究論文（学術雑誌）  

Garnets often exhibit high concentrations of heavy rare-earth elements, which provide crucial insights into element mobility and fluid dynamics during metamorphism. This research reports on the distributions of trace and major elements in garnets from the Khungui eclogite of the Zavkhan Terrane in Western Mongolia. Within the eclogite sample, two types of garnets were identified, featuring dissimilar microstructures and compositional zoning: aggregate-type garnet with asymmetric zoning (Grt1) and euhedral garnet with concentric zoning (Grt2). Previous studies determined that Grt2 formation occurred in the pre-eclogite stage to eclogite facies (2.1–2.2 GPa and 580–610 °C), associated with the infiltration of high-saline fluids. The hexagonal-shaped pseudomorphs of Ti-bearing minerals associated with Grt1 suggest that the nucleation of titanite and garnet was simultaneously accelerated by the destabilization of Ti-augite during pre-eclogite metamorphism. This process could have contributed to the formation of aggregation textures, where Ti-bearing minerals are closely associated with Grt1 in the Khungui eclogite. Based on major divalent elemental composition zoning and trace element characteristics, both Grt1 and Grt2 in the Khungui eclogite are formed simultaneously from the pre-eclogite to eclogite stages. The cores (high Fe + Mg + Mn; Y + REE) of Grt1 and Grt2 are attributed to Rayleigh fractionation or a diffusion-limited uptake process. In contrast, the growth mechanisms of the Grt1 rim and Grt2 rim are distinct during the eclogite stage. The Grt1 rim is explained by a dissolution–reprecipitation, which resulted in the atoll texture observed in Grt1. The Grt2 rim (high Ca; low Y + REE) grew through a mechanism consistent with that of the Grt2 core. The major and trace element zonings of these garnets provide insights into element mobility related to Ti-bearing minerals and infiltration of high salinity fluids at different stages: (1) the mobilization of Ti and V increased under eclogite facies conditions (growth stage of garnet) compared to the pre-eclogite stage, with the mobility of Ti, Nb, Ta elements being pronounced under the exhumation stage (Rt–Ilm–Ttn2), possibly because of the infiltration of high-saline fluids and an increase in temperature, and (2) post-growth compositional modification of Grt1 was induced by a localized transport of Fe, Mg, Mn, and Ca elements in response to the replacement of ilmenite by titanite during decompression (0.1–0.5 GPa and 421–534 °C). The contrasting zoning of garnet in Khungui eclogite indicates dissimilar scales of element mobility under eclogite facies conditions (over a thin-section scale) and during decompression (up to several centimeters or beyond).

DOI

Assessment of contamination and potential ecological risks of heavy metals in the bottom sediments of Lake Mainit, Philippines

Laudiño F.A.R.

Journal of Hazardous Materials Advances ( Journal of Hazardous Materials Advances )  15   2024年08月

研究論文（学術雑誌）  

Lake Mainit is considered an important communal resource in the provinces of Surigao del Norte and Agusan del Norte, which makes the lake a rich natural resource with great ecological value. Calculations of contamination factor (Cf), enrichment factor (Ef), degree of contamination (Cd), modified degree of contamination (mCd), and ecological risk index (MRI) were utilized to diagnose the level of anthropogenic and environmental risk of heavy metal accumulation in bottom sediments. Cf throughout all stations indicates that Lake Mainit is highly contaminated with Ni. Ef mainly was greater than one across all stations, with extremely severe enrichment of Ni. Ni and Cr have a high degree of contamination among all stations. The general MRI across all stations of Lake Mainit is at very high risk. It is evident that Lake Mainit is polluted and will continue to be polluted if fast and reliable responses, both for monitoring and environmental protection, are not provided. Hence, there is a need for comprehensive management of Lake Mainit to help restore its health both from the residents and the acting LGUs of the surrounding municipalities of Lake Mainit.

DOI

First application of scintillator-based photon-counting computed tomography to rock samples: Preliminary results and prospects

Ayumi Ishiguro, Makoto Arimoto, Daichi Saito, Takahiro Tomoda, Keita Itano, Akihiro Tamura, Hironori Sugiyama, Takeshi Kawae, Mayuko Fukuyama, Jun Kataoka, Shinsuke Terazawa, Satoshi Shiota, and Tomoaki Morishita

American Mineralogist     2024年01月  [査読有り]

研究論文（学術雑誌）   国内共著

Geochemical Signatures of Igneous Zircon and Apatite: Generation of Archean TTGs in the Barberton Granitoid-Greenstone Terrain, South Africa

Miyake S.

Island Arc ( Island Arc )  33 ( 1 )   2024年01月

研究論文（学術雑誌）  

ABSTRACT

We performed isotopic and trace element analyses of zircons and apatites from the Inyoni, Batavia, and Badplaas tonalites, trondhjemites and granodiorites series (TTG) in the Barberton Granitoid‐Greenstone Terrain (BGGT), South Africa using laser‐ablation inductively‐coupled plasma‐mass spectrometry to investigate Archean tectono‐magmatism. The U–Pb ages obtained from these minerals are consistent with previously reported ages ranging from ca. 3.28 to 3.23 Ga. The chondrite‐normalized REE patterns of zircons and apatites enabled us to identify grains with primary information on TTG magmatism. Trace element characteristics, such as Sr/Y and Ti concentrations from primary grains, indicated that Inyoni TTG magmas coexisted with eclogite residue, whereas Badplaas and Batavia TTG magmas coexisted with garnet‐amphibolite residue during the early formation stages. Furthermore, Lu–Hf isotope data, combined with the U/Yb‐Nb/Yb data from zircons, suggested that the tectonic settings for TTG generation involved a subduction‐type environment accompanied by crustal reworking. This implies that horizontal plate movement played a significant role in the TTG tectono‐magmatism, and the subduction of old and cold plates facilitated slab melting under eclogite facies conditions, leading to TTG generation on the Archean Earth.

DOI

Bioaccumulation and Potential Human Health Risks of Heavy Metals in the Muscles of Tank Goby (Glossogobius giuris) in Lake Mainit, Philippines

Agtong, R.J.M., Laudiño, F. A. R., Elvira, M. V., Fukuyama, M., and Jumawan, J. C.

Philippine Journal of Science   152 ( 2 ) 505 - 513   2023年04月  [査読有り]

研究論文（学術雑誌）   国際共著

Geological records of transient fluid drainage in to the shallow mantle wedge.

Yoshida, K., Oyanagi, R., Kimura, M., Plümper, O., Fukuyama, M., Okamoto, A.

Science Advances   9   14   2023年04月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI DOI2

Accumulation of heavy metals on the muscles of striped snakehead murrel Channa striata in Lake Mainit, Philippines, and the association of its consumption on human health

Laudiño, F. A. R., Agtong, R. J. M., Elvira, M. V., Fukuyama, M., Jumawan, C. J.

Journal of Hazardous Materials Advances ( Elsevier )  10   100269   2023年03月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

A new natural secondary reference material for garnet U-Pb dating by TIMS and LA-ICP-MS

Namık Aysal, Marcel Guillong, Tamara Bayanova, Mayuko Fukuyama, Nicole Leonard, İsak Yılmaz, Elif Varol6, Fatma Şişman Tükel, Yusuf Kaan Kadıoğlu, Nurullah Hanilçi, Fulya Uzun, Ersin Kaygısız

Geostandards and Geoanalytical Research     2023年02月  [査読有り]

研究論文（学術雑誌）   国際共著

Heavy Metals in the Striped Snakehead Murrel Channa striata and Sediments of Lake Mainit, Philippines with Notes on Piscine Micronuclei Occurrence

Francis Alizha R. Laudiño, Rhenzlyn Joy M. Agtong, Marlon V. Elvira, Mayuko Fukuyama, Joycelyn C. Jumawan

The Philippine Journal of Fisheries     2023年01月  [査読有り]

研究論文（学術雑誌）   国際共著

Changes in Serum Trace Element Concentrations Before and After Surgery in Resectable Breast Cancer

Takahashi, E., Imai, K., Fukuyama, M., Terata, K., Nanjo, H., Ishiyama, K., Hiroshima, Y., Yatsuya, M.,Kudo, C., Morishita, A., Wakita, A., Takashima, S., Sato, Y., Nomura, K., Minamiya, Y.

Anticancer Research ( Anticancer Research USA Inc. )  42 ( 11 ) 5323 - 5334   2022年11月  [査読有り]

研究論文（学術雑誌）   国内共著

DOI

Transport of toxic metals in the bottom sediments and health risk assessment of Corbicula fluminea (Asiatic clam) collected from Laguna de Bay, Philippines

Reymar R. Diwa, Marlon V. Elvira, Custer C. Deocaris, Mayuko Fukuyama, and Lawrence P. Belo

Science of The Total Environment     2022年06月  [査読有り]

研究論文（学術雑誌）   国際共著

Equivalent Circuit Models: An Effective Tool to Simulate Electric/Dielectric Properties of Ores—An Example Using Granite

Fukushima, K., Kabir, M., Kanda, K., Obara, N., Fukuyama, M., Otsuki, A.i

Materials   15 ( 13 ) 1039   2022年06月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

Simulation of Electrical and Thermal Properties of Granite under the Application of Electrical Pulses Using Equivalent Circuit Models

Fukushima K., Kabir, M., Kanda, K., Obara, N., Fukuyama, M., Otsuki, A.

Materials ( Materials )  15 ( 3 )   2022年02月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

The Quaternary Kurobegawa Granite: an example of a deeply dissected resurgent pluton

Ito, H., Adachi, Y., Cambeses, A., Bea, F., Fukuyama, M., Fukuma, K., Yamada, R., Kubo, T., Takehara, M. & Horie, K.

Scientific Reports   11 ( 22059 ) 1 - 14   2021年11月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

Geochemical and geochronological constraints on the origin and emplacement of the Shimo‐ondori diorites in Shikoku, Southwest Japan.

Aoki, S., Aoki, K., Fukuyama, M., Ogasawara, M., Tsuchiya, Y.

Island Arc   30 ( 1 ) 1 - 19   2021年08月  [査読有り]

研究論文（学術雑誌）   国内共著

DOI

Geochemical characteristics of silica scales precipitated from the geothermal fluid at the Onuma geothermal power plant in Japan

Fukuyama M., Chen, F.

Journal of Mineralogical and Petrological Sciences ( Journal of Mineralogical and Petrological Sciences )  116 ( 3 ) 159 - 169   2021年07月  [査読有り]

研究論文（学術雑誌）   国内共著

DOI

Human health risk associated with heavy metals from consumption of Asiatic Clam, Corbicula fluminea, from Laguna de Bay, Philippines

Elvira M.V., Faustino-Eslava D.V., de Chavez E.R.C., Losloso J.A.L., Fukuyama M.

Environmental Science and Pollution Research ( Environmental Science and Pollution Research )    2021年03月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

Ecological risk assessment of heavy metals in the bottom sediments of laguna de bay, philippines

Marlon V. Elvira, Decibel V. Faustino-Eslava, Mayuko Fukuyama, Emmanuel Ryan C. de Chavez, Jenielyn T. Padrones

Mindanao Journal of Science and Technology   18 ( 2 ) 311 - 335   2020年12月  [査読有り]

研究論文（学術雑誌）   国際共著

1.74 Ga crustal melting after rifting at the northern Indian margin: investigation of mylonitic orthogneisses in the Kathmandu area, central Nepal

Imayama T., Arita K., Fukuyama M., Yi K., Kawabata R.

International Geology Review ( International Geology Review )  61 ( 10 ) 1207 - 1221   2019年07月  [査読有り]

研究論文（学術雑誌）   国際共著

DOI

Origin of the ordovician mansehra granite in the nw himalaya, pakistan: Constraints from sr–nd isotopic data, zircon u–pb age and hf isotopes

Ogasawara M., Fukuyama M., Siddiqui R.H., Zhao, Y.

Geological Society Special Publication ( Geological Society Special Publication )  481 ( 1 ) 277 - 298   2019年  [査読有り]

研究論文（学術雑誌）   国際共著

DOI