Abstract Details
(2020) Chemical Composition of the Kojaku Granite Pluton, Southwestern Japan
Fukuhara T & Tsuboi M
https://doi.org/10.46427/gold2020.767
The author has not provided any additional details.
04j: Room 1, Saturday 27th June 00:51 - 00:54
Toshihiro Fukuhara
Motohiro Tsuboi View all 4 abstracts at Goldschmidt2020 View abstracts at 9 conferences in series
Motohiro Tsuboi View all 4 abstracts at Goldschmidt2020 View abstracts at 9 conferences in series
Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.
Submitted by Changqian Ma on Wednesday 24th June 09:14
Thank you for showing a very important study! I have two questions: (1)In addition to the relatively large variation range of the Aluminum saturation index, what mineralogical and compositional characteristics of the Kojaku granite you studied belong to the characteristics of S-type granite or I-type granite? (2)What is the relationship between these granites and tectonic evolution?
Thank you very much for your important questions and comments. We have just identified I type or S type from only ASI index of the sample. There are no special characteristics for the spatial distribution of the samples or chemical compositions on the Harker’s diagram. Late Cretaceous to early Paleogene granitic bodies are widely distributed in southwestern Japan. The Kojaku granite is one of them. Ages and chemical characteristics of these granites may provide some important information for the tectonic model of this magmatism.
Thank you for showing a very important study! I have two questions: (1)In addition to the relatively large variation range of the Aluminum saturation index, what mineralogical and compositional characteristics of the Kojaku granite you studied belong to the characteristics of S-type granite or I-type granite? (2)What is the relationship between these granites and tectonic evolution?
Thank you very much for your important questions and comments. We have just identified I type or S type from only ASI index of the sample. There are no special characteristics for the spatial distribution of the samples or chemical compositions on the Harker’s diagram. Late Cretaceous to early Paleogene granitic bodies are widely distributed in southwestern Japan. The Kojaku granite is one of them. Ages and chemical characteristics of these granites may provide some important information for the tectonic model of this magmatism.
Submitted by Calvin Miller on Friday 26th June 21:44
(I just read Changquian's questions, and I realize that mine are almost the same. Feel free to ignore mine, unless you would like to expand on your answers to the similar questions above) Thank you for your interesting study! Is there significant variation in mineral assemblage that correlates with ASI? Also, could you place your study in a broader context of granitic plutonism in Japan?
(I just read Changquian's questions, and I realize that mine are almost the same. Feel free to ignore mine, unless you would like to expand on your answers to the similar questions above) Thank you for your interesting study! Is there significant variation in mineral assemblage that correlates with ASI? Also, could you place your study in a broader context of granitic plutonism in Japan?
Submitted by Toshihiro Fukuhara on Saturday 27th June 09:55
(I just read Changquian's questions, and I realize that mine are almost the same. Feel free to ignore mine, unless you would like to expand on your answers to the similar questions above) Thank you for your interesting study! Is there significant variation in mineral assemblage that correlates with ASI? Also, could you place your study in a broader context of granitic plutonism in Japan? Thank you very much for your important questions. I considered my date’s norm by chemical compounds. However, I haven’t made thin section yet. I will make it, and I can know significant variation in mineral assemblage that correlates with ASI. I think there are specific granites plutons in Lake Biwa. There is a large Cauldron in Lake Biwa. The Kojaku granite is near the Cauldron. I want to analyze more, and I study the Kojaku granite and Cauldron are relation.
(I just read Changquian's questions, and I realize that mine are almost the same. Feel free to ignore mine, unless you would like to expand on your answers to the similar questions above) Thank you for your interesting study! Is there significant variation in mineral assemblage that correlates with ASI? Also, could you place your study in a broader context of granitic plutonism in Japan? Thank you very much for your important questions. I considered my date’s norm by chemical compounds. However, I haven’t made thin section yet. I will make it, and I can know significant variation in mineral assemblage that correlates with ASI. I think there are specific granites plutons in Lake Biwa. There is a large Cauldron in Lake Biwa. The Kojaku granite is near the Cauldron. I want to analyze more, and I study the Kojaku granite and Cauldron are relation.
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