書誌事項
- タイトル別名
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- On the “Pb-bearing barite” from the Kawarage Mine in Akita Prefecture (1st report)
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説明
In this summer, we have found a weak radioactive mineral in a stream at the neighbourhood of the Kawarage Mine. It looks, apparently, to be a kind of barite, but differs from the latter as it is coated with a glossy or aggregate blackish-brown crystals and consists of three parts.<br> We reserched it from the following view points: geological and mineralogical (Shiikawa), chemical and radioactive (Yamaguchi). Then, we concluded that either three parts were consisted mainly of “barium sulfate” contaminated with small percentages of Pb, Ca, Sr, Si and other elements and were a series of the sulfate sinter from the same origin, which may be the stream.<br> In mineralogically, we found that at least the upper and middle parts were constructed with the fine stripe-structures. And this mineral had the different values of the interfacial angles from the ones of the normal barites and Hokutolites.<br> The ratio PbSO4/BaSO4 of the total mineral and the upper part was 4.28/95.72 and 3.22/96.78 respectively.<br> From these results, it may be called “Pb-bearing barite”<br> Many questions are remained concerning to it. We are reserching it especially on the genetic information.
収録刊行物
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- 岩石鉱物鉱床学会誌
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岩石鉱物鉱床学会誌 40 (4), 137-148, 1956
一般社団法人 日本鉱物科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681193195264
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- NII論文ID
- 130003728053
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- ISSN
- 18830765
- 00214825
- http://id.crossref.org/issn/03610128
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- JaLC
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