Pearlyn Manalo

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Speaker, Author, Co-Author

Mon. May 26, 2025 1:45 PM - 3:15 PM 102 (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE12] Earth Resource Science

2:15 PM - 2:30 PM

[HRE12-02] Study on fluid inclusions of copper mineralization at the Otavi Mountainland, northern Namibia

*TAKAO MIURA^1,2, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Henri Christian Brunette³ (1.Akita University, 2.Japan Organization for Metals and Energy Security, 3.Votorantim Metals Namibia)

2:30 PM - 2:45 PM

[HRE12-03] Characteristics of mineralization at the Doi Ngom W-Sb-F deposit, northern Thailand

*Karn Phountong¹, Ryohei Takahashi¹, Pearlyn Manalo¹, Andrea Agangi¹, Manuel Nopeia¹, Hinako Sato¹, Punya Charusiri² (1.Akita Univ., 2.DMR)

3:00 PM - 3:15 PM

[HRE12-05] Characterization of lithium-bearing pegmatite in Sakihama, Iwate, Japan

*Hernani Vitorino Nhatinombe¹, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Hinako Sato¹ (1.Graduate School of International Resource Sciences, Akita University)

Mon. May 26, 2025 3:30 PM - 5:00 PM 102 (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE12] Earth Resource Science

3:30 PM - 3:45 PM

[HRE12-06] Mineral and fluid chemistry variations in high-sulfidation epithermal systems: Constraints from cathodoluminescence and chemistry of quartz and fluid inclusions

*Pearlyn Manalo¹, Kalin Kouzmanov², Alexandra Tsay², Ryohei Takahashi¹, Hinako Sato¹, Andrea Agangi¹, Akira Imai³ (1.Graduate School of International Resource Sciences, Akita University, Japan, 2.Department of Earth Sciences, University of Geneva, Switzerland, 3.Department of Earth Resources Engineering, Kyushu University, Japan)

3:45 PM - 4:00 PM

[HRE12-07] Occurrence of calcium silicate hydrate minerals in a high Au-grade zone of the Kinsen 1-1 vein at the Hishikari deposit, Kagoshima, Japan

*Naohiro Kishi¹, Jonathan Macuroy², Ryohei Takahashi¹, Akira Hara³, Yoshinori Okaue³, Akira Imai⁴, Pearlyn Manalo¹, Hinako Sato¹, Andrea Agangi¹ (1.Graduate School of International Resource Sciences, Akita University, 2.Center for Regional Revitalization in Research and Education, Akita University, Japan, 3.Sumitomo Metal Mining Co., Ltd., 4.Faculty of Engineering, Kyushu University, Japan)

4:00 PM - 4:15 PM

[HRE12-08] Geochemistry and U-Pb geochronology of granites from the Pilok tin-tungsten deposit, Kanchanaburi, Thailand

*MALLIKA INTACHAI¹, Ryohei Takahashi¹, Andrea Agangi¹, Marlina Elburg², Punya Charusiri³, Pearlyn Manalo¹ (1.Akita Univ., 2.Univ. of Johannesburg, 3.DMR)

4:15 PM - 4:30 PM

[HRE12-09] Prolonged evolution of VHMS-forming magmatic systems: Insights from silicic products of the Hokuroku District, Japan

*Gabriela Nogo Retnaningtyas Bunga Naen¹, Andrea Agangi^2,3, Manuel Augusto Manuel Nopeia¹, Marlina Elburg³, Pearlyn Manalo², Ryohei Takahashi² (1.Center for Regional Revitalization in Research and Education, Akita University, Japan , 2.Department of Earth Resource Science, Akita University, 1-1 Tegata Gakuen-machi, 010-0852 Akita Japan , 3.Department of Geology, University of Johannesburg, Crn University and Kingsway, 2006 Auckland Park, South Africa)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE12] Earth Resource Science

5:15 PM - 7:15 PM

[HRE12-P01] Petrography and geochemical characteristics of the Gudang Handak veins in the Pongkor epithermal Au-Ag deposit, Indonesia

*Syaiful Hilal¹, Ryohei Takahashi², Andrea Agangi², Pearlyn Manalo², Jonathan Tandang Macuroy⁵, Manuel Augusto Manuel Nopeia⁵, Hinako Sato², Mega Fatimah Rosana³, Abdul Bari⁴, Bayuaji Jokosatriyo⁴, Bronto Sutopo⁴ (1.Graduate School of International Resource Sciences, Akita Univ.; Geomin unit, PT Aneka Tambang Tbk, 2.Graduate School of International Resource Sciences, Akita Univ., 3.Faculty of Geological Engineering, Padjadjaran Univ., 4.Geomin unit, PT Aneka Tambang Tbk, 5.Center for Regional Revitalization in Research and Education, Akita Univ.)

5:15 PM - 7:15 PM

[HRE12-P02] Textural and geochemical characteristics of gold-bearing pyrite from the Leon Carlin-type gold deposit in the Ratatotok district, North Sulawesi, Indonesia

*Muhammad Arba Azzaman^1,4, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Hinako Sato¹, Manuel Augusto Manuel Nopeia², Arifudin Idrus³, Doly R Simbolom⁵ (1.Graduate School of International Resource Sciences, Akita Univ., 2.Center for Regional Revitalization in Research and Education, Akita Univ., 3.Department of Geological Engineering, Univ. Gadjah Mada, 4.Department of Geological Engineering, Halu Oleo Univ., 5.PT Sumber Energi Jaya)

5:15 PM - 7:15 PM

[HRE12-P03] Mineral textures and assemblages, sulfur isotopes, and the whole rock major and trace element compositions of hydrothermal veins in Cordon, northern Luzon, Philippines

*Hertz Balmater¹, Ryohei Takahashi¹, Hinako Sato¹, Andrea Agangi¹, Pearlyn Manalo¹, Jillian Aira Gabo-Ratio³, Graciano Yumul Jr.² (1.Akita University - Graduate School of International Resource Sciences - Economic Geology Lab, 2.Cordillera Exploration Company, Incorporated., 3.University of the Philippines Diliman - National Institute of Geological Sciences)

5:15 PM - 7:15 PM

[HRE12-P04] Geochemical characteristics of groundwaters, hot spring waters, lake waters, and sediments in Lake Abhe, Djibouti

*Daher Ali Hassan¹, Ryohei Takahashi¹, Hinako Sato¹, Andrea Agangi¹, Pearlyn Manalo¹ (1.Graduate School of International Resources Sciences, Akita University, Akita, Japan)

5:15 PM - 7:15 PM

[HRE12-P05] Element mobility during the formation of the Batubesi skarn Fe-Sn deposit in Belitung Island, Indonesia

*Enrico Gilrandy Wahyu Suharjo¹, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Hinako Sato¹, Syafrizal Syafrizal², Mochamad Slamet Sugiharto³, Anton Murtono³ (1.Graduate School of International Resource Sciences, Akita University, Japan, 2.Faculty of Mining and Petroleum Engineering, Bandung Institute of Technology, Indonesia, 3.Exploration Division, PT Timah, Indonesia)

5:15 PM - 7:15 PM

[HRE12-P06] Mineralogical and geochemical characteristics in the Wariki Granitoid, West Papua, Indonesia

*Mirna Mariana¹, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Iwan Setiawan², David Victor Mamengko³, Hinako Sato¹ (1.Graduate School of International Resources Science, Akita University, Akita, Japan, 2.Research Center for Geological Resources, National Research and Innovation Agency, Bandung, Indonesia, 3.Department of Geology, Faculty of Mining and Petroleum Engineering, University of Papua, Manokwari, Papua)

5:15 PM - 7:15 PM

[HRE12-P07] Geochemical and mineralogical characteristics of the Partolang volcanogenic massive sulfide deposit, Wetar Island, Indonesia

*Tomy Hidayat Herawan¹, Ryohei Takahashi¹, Andrea Agangi¹, Pearlyn Manalo¹, Hinako Sato¹, Manuel Augusto Manuel Nopeia¹, Arifudin Idrus², Andi Pahlevi³ (1.Akita University, 2.Universitas Gadjah Mada, 3.Merdeka Copper Gold)

Sun. May 25, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-VC Volcanology

[S-VC35] Hydrothermal systems of volcanoes

5:15 PM - 7:15 PM

[SVC35-P04] Geochemical interaction between rocks and volcanic fluid in the hydrothermal system at Kurikoma volcano, northern Honshu

*Hinako Toda¹, Tsukasa Ohba², Ryohei Takahashi², Kazuhiro Amita³, Pearlyn Manalo² (1.Akita university, 2.Graduate School of International Resource Sciences, Akita University, 3.Faculty of Engineering Science, Department of Systems Design Engineering, Civil and Environmental Engineering Course, Akita University)