{"created":"2021-03-01T06:27:31.064954+00:00","id":19978,"links":{},"metadata":{"_buckets":{"deposit":"d03122da-11fc-4fa7-bcc7-44355368d3ab"},"_deposit":{"id":"19978","owners":[],"pid":{"revision_id":0,"type":"depid","value":"19978"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00019978"},"item_9_alternative_title_19":{"attribute_name":"\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb","attribute_value_mlt":[{"subitem_alternative_title":"Grain-size variations in the elemental concentrations and strontium isotope ratios (87Sr/86Sr) of stream sediments in a granitic drainage basin"}]},"item_9_biblio_info_6":{"attribute_name":"\u66f8\u8a8c\u60c5\u5831","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"119","bibliographicPageStart":"114","bibliographicVolumeNumber":"26","bibliographic_titles":[{"bibliographic_title":"\u540d\u53e4\u5c4b\u5927\u5b66\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a\u66f8"}]}]},"item_9_description_4":{"attribute_name":"\u6284\u9332","attribute_value_mlt":[{"subitem_description":"We investigate the chemical composition and strontium isotope ratios (87Sr/86Sr) of different grain-size fractions of stream sediments collected from the drainage area containing only granite. The 87Sr/86Sr variation exhibited from 0.7099 to 0.7105 according to grain-size with minimum values in the 300-180 \u03bcm fraction. The grain-size variation is considered to be potentially caused by different mineral resistance to weathering. Meanwhile, the inter-site mineralogical heterogeneity was smallest in the 180-75 \u03bcm fraction, and the 87Sr/86Sr inter-site variation was smallest, 0.70992-0.70995, in the 300-180 \u03bcm fraction. The results suggest that stream sediments from medium sand size to very fine sand size are approximate the representative chemical features without inter-site mineral and chemical heterogeneities. \u6211\u3005\u306f\uff0c\u7c92\u5f84\u5225\u306b\u7be9\u3044\u5206\u3051\u305f\u82b1\u5d17\u5ca9\u8d77\u6e90\u6cb3\u5ddd\u5806\u7a4d\u7269\u306e\u7c92\u5f84\u5225\u5143\u7d20\u6fc3\u5ea6\u30fb87Sr/86Sr\u5909\u52d5\u3092\u660e\u3089\u304b\u306b \u3057\u305f\u3002\u307b\u3068\u3093\u3069\u306e\u5143\u7d20\u306f\u7c92\u5f84\u5206\u753b\u306b\u3088\u308a\u6fc3\u5ea6\u304c\u5909\u52d5\u3057\uff0c\u9271\u7269\u7d44\u6210\u306e\u9055\u3044\u3092\u53cd\u6620\u3057\u3066\u3044\u308b\u300287Sr/86Sr \u306b\u3064\u3044\u3066\u306f\uff0c\u5168\u7c92\u5f84\u5206\u753b\u306e\u5024\u304c0.7099-0.7105\u3068\u5909\u52d5\u304c\u5c0f\u3055\u304f\uff0c\u5730\u70b9\u5225\u5909\u52d5\u304c\u6700\u3082\u5c0f\u3055\u3044\u306e\u306f 300-180\u03bcm\u5206\u753b(0.70992-0.70995)\u3067\u3042\u3063\u305f\u3002\u672c\u7814\u7a76\u7d50\u679c\u304b\u3089\uff0c\u6cb3\u5ddd\u5806\u7a4d\u7269\u306b\u3088\u308a\u5730\u7403\u5316\u5b66\u56f3\u306e\u4f5c 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