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An overview of a natural analogue study of the Tono uranium deposit, central Japan

Eiji Sasao, Kunio Ota, Teruki Iwatsuki, Tadafumi Niizato, Randolph C. Arthur, Michael J. Stenhouse, Wei Zhou, Richard Metcalfe, Hiroyasu Takase and Angus B. MacKenzie
An overview of a natural analogue study of the Tono uranium deposit, central Japan
Geochemistry - Exploration, Environment, Analysis (February 2006) 6 (1): 5-12

Abstract

The basic concept of deep geological disposal of high-level radioactive waste is to isolate the waste from the human environment for the long term. Because the Japanese islands are located in a geologically active area, geological phenomena such as exhumation and fault activity must be considered by any safety assessment connected with deep geological disposal. The Tono Uranium Deposit, central Japan, has been affected by such geological phenomena during the interval since its formation, and so it is a suitable analog for evaluating how this might be done. The present natural analog study of the Tono Uranium Deposit (Tono Natural Analogue Project) was started in 2001 with the main aim of studying a so-called "worst-case scenario" for performance assessment (PA). The project involved characterizing the geology, hydrogeology, geochemistry and microbiology of the deposit and obtaining quantitative information about specific times in the past, as a means for developing, and building confidence in, conceptual and numerical models. This project applied systems analysis, which has been widely undertaken in PAs of deep geological isolation. Systems analysis involves a systematic identification, classification and screening of features, events and process (FEPs) that occur or have occurred in and around the deposit. Based on the site data, important FEPs were identified.


ISSN: 1467-7873
EISSN: 2041-4943
Serial Title: Geochemistry - Exploration, Environment, Analysis
Serial Volume: 6
Serial Issue: 1
Title: An overview of a natural analogue study of the Tono uranium deposit, central Japan
Affiliation: Japan Atomic Energy Agency, Gifu, Japan
Pages: 5-12
Published: 20060201
Text Language: English
Publisher: Geological Society Publishing House, London, United Kingdom
References: 36
Accession Number: 2006-026617
Categories: Economic geology, geology of ore depositsEnvironmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, geol. sketch map
N35°07'00" - N36°28'00", E136°45'00" - E137°34'60"
Secondary Affiliation: Monitor Scientific, USA, United StatesQuintessa, JPN, JapanSUERC, GBR, United Kingdom
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200614
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