The Grain Size Influence on the E1' Centre Observed in Quartz of Atmospheric Deposition at Two Japanese Cities: A Preliminary Study

Author:

Yamamoto Yuya1,Toyoda Shin1,Nagasima Kana2,Igarashi Yasuhito3,Tada Ryuji4

Affiliation:

1. Okayama University of Science, Japan

2. Japan Agency for Marine-Earth Science and Technology, Japan

3. Metrological Research Institute, Japan

4. The University of Tokyo, Japan

Abstract

The Grain Size Influence on the E1' Centre Observed in Quartz of Atmospheric Deposition at Two Japanese Cities: A Preliminary Study The grain size influence on the number of oxygen vacancies in quartz was investigated by ESR in atmospheric deposition collected at two Japanese cities, Fukuoka and Akita, in 1969 and 1971. The finer grain size fraction shows the highest value of concentration of oxygen vacancies, most closely resembling dust originating in the Taklamakan desert. Month to month and year to year variation of the dependence was also observed which could possibly be attributed to the variation of the mixture ratio of at least two dust sources in China, A conclusive statement can not be made at this stage.

Publisher

Walter de Gruyter GmbH

Subject

Earth and Planetary Sciences (miscellaneous)

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