result 15059 件
| Author | Enver, Erdinc Dincsoy| |
|---|---|
| Published Date | 2010-03-25 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Md. Moklesur, Rahman Sarker| |
|---|---|
| Published Date | 2010-03-25 |
| Content Type | Thesis or Dissertation |
| Author | Wael, Amgad Refaat Ahmed Hassan| |
|---|---|
| Published Date | 2010-03-25 |
| Content Type | Thesis or Dissertation |
| Author | Lefeuvre, Mathieu Bernard| |
|---|---|
| Published Date | 2010-03-25 |
| Content Type | Thesis or Dissertation |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1963-01-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume31 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1964-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume33 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1964-10-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume34 |
| Content Type | Others |
| JaLCDOI | 10.18926/21325 |
|---|---|
| FullText URL | pitsr_034_063_094.pdf |
| Author | Okuno, Takaharu| |
| Abstract | The Kamioka mine, Gifu prefecture, working the largest lead and zinc deposit in Japan, lies in the eastern corner of the Hida gneiss complex. The skarn minerals in this mining district are genetically divided into the following three groups. Skarn A : Recrystallized skarn, formed by a regional metamorphism of impure limestone beds. The creation of skarn A is same in age to the formation of the Hida metamorphic complex. Skarn B : Zoned skarn along the contact between limestone and Inishi syenitic rock, having a same origination to Shimonomoto granite. The formation of skarn B is closely related to the intrusion of Shimonomoto granite. Skarn C : Pyrometasomatic skarn, formed by pyrometasomatic replacement of limestone probably after the deposition of the Mesozoic Tetori formation. The ore deposits of the Kamioka mine are composed of the pyrometasomatic skarn (skarn C) called "Mokuji" and the hydrothermal deposits called "Shiroji". Skarn A and skarn B have no genetical relation to the ore deposits. But skarn A acts the valuable role for the stratigrahical classification of ore deposits and limestone beds. |
| Publication Title | 岡山大学温泉研究所報告 |
| Published Date | 1964-10-25 |
| Volume | volume34 |
| Start Page | 63 |
| End Page | 94 |
| ISSN | 0369-7142 |
| language | English |
| File Version | publisher |
| NAID | 120002310950 |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1965-10-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume35 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1975-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume44 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1976-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume45 |
| Content Type | Others |
| Author | Honma, Hiroji| Sakai, Hitoshi| |
|---|---|
| Published Date | 1976-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume45 |
| Content Type | Data or Dataset |
| JaLCDOI | 10.18926/21214 |
|---|---|
| Title Alternative | 斜長石から生成したギブサイトの走査電顕観察―大山および三瓶山降下地積物中の粘土鉱物,その8― |
| FullText URL | pitsr_045_011_024.pdf |
| Author | Tazaki, Kazue| |
| Abstract | 大山降下堆積物中の斜長石のギブサイト化過程を,偏光顕微鏡,X線,示差熱分析,走査型電顕,EPMAを用いて調べた. 斜長石は風化によって,カオリナイト,イライト,ハロイサイト,ギブサイト等を生成することが知られているが,今回,ギブサイト化した斜長石についてのみ検討をおこなった. EPMA分析によれば,一個の斜長石の表面に,Al, Si, Na, Caの多く存在する新鮮な斜長石の部分と,Na, Caをほとんど含まず,多量のAlと,ごく少量のSiを含んでいるギブサイトの部分とが分布し,その境界は, 明瞭であることがわかった（図版2）.それぞれの部分の分析値は第1表のとおりである. 走査型電顕による斜長石の微細形態観察から,下記のことが明らかになった. ①新鮮な斜長石の表面は,平滑かまたは離溶ラメラがみとめられる（図版3-1）. ②風化過程の初期に,水を合んだ非晶質の薄層が,斜長石の表層に生成する.この非晶質薄層の生成にさき立って,斜長石の表面の一部に, ロート状のくぼみが形成される場合がある（図版3-2,3）. ③この非晶質薄層に亀裂が生じる（図版4）.一方, ロート状のくぼみの上にも非晶質の薄層ができ,亀裂が生じる（図版8-1,2）. ④さらに風化が進むと,ラメラ, 亀裂およびロート状のくぼみを部分的に残しながら,-･部には,ギブサイトの結晶が生成する（図版5）. ⑤ギブサイトの結晶は,横1～3μm, 縦2～15μm, 厚さ0.5μm前後の平板状の形態,または,直径15-25μm,厚さ0.5～1μm の円盤上の形態をもつ（図版6）. ⑥ギブサイトの結晶は,平板状のものが数段重なり,集合体をなす場合もあり（図版7-1）,これは,ブラジルのミナス鉱山産のギブサイトの集合状態（図版7-2）とよく似ている. すなわち,斜長石の表面に,風化により,水を含んだ非晶質の薄層ができ,次に,その薄層に亀裂が生じ,イモゴライトの生成をともないながら,直接ギブサイトが結晶すると考えられる. 地名 Okachi 大河内 Hongu 本宮 Kurayoshi 倉吉 Daisen-Cho 大山町 Shuki 秋喜 Hiruzenbara 蒜山原 |
| Publication Title | 岡山大学温泉研究所報告 |
| Published Date | 1976-03-25 |
| Volume | volume45 |
| Start Page | 11 |
| End Page | 24 |
| ISSN | 0369-7142 |
| language | English |
| File Version | publisher |
| NAID | 120002311010 |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1977-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume46 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1978-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume47 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1979-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume48 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1979-09-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume49 |
| Content Type | Others |
| JaLCDOI | 10.18926/21169 |
|---|---|
| Title Alternative | Ammonium content of Archean rocks of the Superior Province |
| FullText URL | pitsr_049_007_013.pdf |
| Author | Honma, Hiroji| Schwarcz Henry P.| |
| Abstract | Ammonium contents were determined for clastic sediments and associated volcanic rocks of the Kirkland Lake area, Abitibi greenstone- granite belt and metamorphic, migmatitic and granitic rocks of the Ear Falls-Dryden area, English River gneiss-granite belt. The NH(4) centents of Archean volcanic rocks (2700~2710m.y.) are very low (0~6 ppm) and immature argillites have also low contents of NH(4) (27~43ppm). On the other hand, a black shale from the Timiskaming Group (2100m.y.) are rich in graphite and pyrite and contain much NH4 (130ppm), providing a firm evidence of relatively abundant presence of an Archean biota compared with a sparcity of morphological record of Archean fossils. The NH(4) content of the rock mentioned above is about a third of those of the upper Proterozoic sediments and it remains to be established whether it reflects the abrupt break in the evolution of life near the Archean-Proterozoic boundary or not. A considerable amount of NH(4) is inherited by highly metamorphic pelitic gneisses and there may be a possibility for indirect prospection of early life by a study of NH(4) in highly metamorphic rocks of the early Archean. It was also found that the gneissic granitoid has much higher content of NH(4) than the post· kinematic massive granitoid. |
| Publication Title | 岡山大学温泉研究所報告 |
| Published Date | 1979-09-25 |
| Volume | volume49 |
| Start Page | 7 |
| End Page | 13 |
| ISSN | 0369-7142 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002310965 |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1980-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume50 |
| Content Type | Others |
| Author | Institute for Thermal Spring Research, Okayama University| |
|---|---|
| Published Date | 1981-03-25 |
| Publication Title | 岡山大学温泉研究所報告 |
| Volume | volume51 |
| Content Type | Others |
