default author photo

Koki Kashiwaya

Kyoto University

SCHOLARLY PAPERS

3

DOWNLOADS

126

TOTAL CITATIONS

0

Scholarly Papers (3)

Actions:
Email selected abstracts
1.

Advanced Characterization of Hydrothermal Flows within Recharge and Discharge Areas Using Rare Earth Elements, Proved Through a Case Study of Wayang Windu Field, West Java, Indonesia

Number of pages: 38 Posted: 16 Apr 2022
Riostantieka Mayandari Shoedarto, Yohei Tada, Koki Kashiwaya, Katsuaki Koike, Irwan Iskandar, Dwiyogarani Malik and Boyke Bratakusuma
affiliation not provided to SSRN, affiliation not provided to SSRN, Kyoto University, Kyoto University, Bandung Institute of Technology, University of Indonesia (UI) and affiliation not provided to SSRN
Downloads 57 (1,000,027)

Abstract:

Loading...

Speciation, cerium anomaly, europium anomaly, LREE, HREE enrichment

2.

Characterization of the Shiretokoiozan volcano hydrothermal system in Hokkaido, North Japan: Examining the source and mechanism of molten sulfur eruptions

Number of pages: 40 Posted: 11 Nov 2025
Mutsunori Yamamoto, Koki Kashiwaya, Brenda A. Kusumasari, Yohei Tada, Tada-nori Goto and Katsuaki Koike
affiliation not provided to SSRN, Kyoto University, Kyoto University, Kyoto University, University of Hyogo and Kyoto University
Downloads 49 (1,097,529)

Abstract:

Loading...

Molten sulfur eruption, Water isotope, Altitude effect, Andesitic water, Multicomponent geothermometry.

3.

Reservoir Temperature Estimation Accuracy Improvement via Multicomponent Geothermometry: Demonstration on the Patuha Geothermal Field, Indonesia

Number of pages: 46 Posted: 26 May 2026
Brenda Ariesty Kusumasari, Koki Kashiwaya, Yohei Tada, Yudi Rahayudin and Katsuaki Koike
Kyoto University, Kyoto University, Kyoto University, affiliation not provided to SSRN and Kyoto University
Downloads 20 (1,518,554)

Abstract:

Loading...

Vapor-dominated reservoir, solute geothermometry, multicomponent geothermometry, saturation index clustering, steam loss correction, mineral optimization