Elucidation of the Hidaka crust-mantle system

日高壳幔系统的阐明

• 批准号: 22K03764
• 负责人: 山崎 徹
• 金额: $ 2.66万
• 依托单位: National Institute of Advanced Industrial Science and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K03764/
• 关键词: 日高火成活動帯; 斑れい岩; かんらん岩; 火山-深成作用; 日高変成帯; ポロシリオフィオライト

本年度は，本研究課題の核心をなす3つの「問い」を解決するための試料の採取と野外観察を実施した．具体的には，①日高火成活動帯と日高帯かんらん岩類との成因的関係，及び②ポロシリオフィオライト帯の位置づけの検討のため，日高帯かんらん岩類とポロシリオフィオライト帯かんらん岩類を独自に統一的な視点から観察すべく，日高変成帯北部の両帯が接するウェンザル林道地域の調査及び試料採取を行った．また，①の鍵となり得る日高帯かんらん岩類中の火成岩（斑れい岩）岩脈の観察・試料採取を日高変成帯南部のアポイ岳周辺の幌満かんらん岩体で実施した．加えて，日高火成活動帯の火山-深成作用を包括的に議論するため，日高火成活動帯北部地域の北見市周辺で，深成岩類と年代の重なる中新世火山岩類の採取を行った．これらの火山岩類は苦鉄質・珪長質のバイモーダルな組成で特徴づけられ，同様の組成的特徴を持つ日高火成活動帯の深成岩類との対応関係を検討するための試料となる．そのため，日高火成活動帯中部~部地域の深成岩類についても，追加的な観察・試料の拡充を行った．以上の野外調査によって得られた試料から薄片を作成し，観察を実施した．これらの新たな野外調査・試料採取に加えて，実施者らの持つ既存のデータの取りまとめと，既に公表されている既存のデータのコンパイルを行い，日高帯かんらん岩類の位置づけを含めた日高火成活動帯の中新世火山-深成作用に関する，現時点でのモデルを作成し，公表論文原稿として取りまとめを実施中である．あわせて，直接的に本研究課題の研究地域を対象としたものではないが，本研究課題遂行にあたり参考となると考えられる，同種の岩石についての岩石学的・地球化学的検討を行い，2編の論文を公表した．

In the course of this year, the core of this study, the core of this study, is to learn from the field survey materials for the purpose of this year's research. The specific conditions are as follows: the cause of formation of high temperature, high temperature, high The daily height of the sun is high, and the height of the earth is very high. The sun height is very high, and the sun height is very high. The sun height is very high, and the sun height is very high. The sun height is very high, and the sun height is very high. The sun height is very high. The sun height is very high. The main contents of this paper are as follows: (1) the daily height of the igneous rocks (porphyry rocks) is selected for the observation and observation of the igneous rocks (porphyry rocks). In addition, the daily high fire survival activity volcano-plutonic process includes the discussion workshop, the daily high fire survival movement in the northern region and the northern perimeter of the city. The chronology of the deep diagenetic rocks is very important. The volcanic rocks of the Miocene are very important. The volcanic rocks of the Miocene age are very difficult. The volcanic rocks of the Pleistocene have been formed in a special way, and they have been formed in the same way. In the middle and the middle of the high-temperature fire, they have been divided into two groups. The additional information is available in the field, the material is made of thin slices, and the new material is used in the field. The giver holds that the existing data is available, and the existing data is available in the public table. The location of the sun-to-earth climate includes the Miocene volcano-abyssal volcano-plutonic event, which was completed at different times, and the public table shows that the original text is full of information about the nature of the event, and that the research area of this study is similar to the study area of this study, and this research project is conducted in this study. The geochemistry of the same kind of rocks is related to the geochemistry of petrology.

项目成果

University of Arizona/Princeton University(米国)

亚利桑那大学/普林斯顿大学（美国）

Assimilation of lower-crustal dunite xenoliths into adakite-related felsic magma: New insights into the production of bajaitic high-Mg andesites

下地壳纯橄榄岩捕虏体同化为与埃达克岩相关的长英质岩浆：对巴贾岩高镁安山岩生产的新见解

• DOI: 10.1016/j.jseaes.2023.105613
• 发表时间: 2023
• 期刊: Journal of Asian Earth Sciences
• 影响因子: 3
• 作者: Yamasaki Toru;Uchino Takayuki
• 通讯作者: Uchino Takayuki

Origin and evolution of the Paleo‐Kuril arc inferred from detrital zircon U-Pb chronology in eastern Hokkaido, NE Asia

东北海道东部碎屑锆石 U-Pb 年代学推断古千岛岛弧的起源和演化

• DOI: 10.1111/iar.12458
• 发表时间: 2022
• 期刊: Island Arc
• 影响因子: 1.5
• 作者: Nanayama Futoshi;Yamasaki Toru;Kanamatsu Toshiya;Iwano Hideki;Danhara Tohru;Hirata Takafumi
• 通讯作者: Hirata Takafumi

国東半島東部，行者岬深成複合岩体の地球化学的特徴：北部九州地域の高Sr花崗岩・低Sr花崗岩の成因に関する示唆

国东半岛东部行子岬深成杂岩地球化学特征：对九州北部地区高锶花岗岩和低锶花岗岩成因的建议

• 发表时间: 2022
• 期刊: 大分地質学会誌
• 作者: Nanayama Futoshi;Yamasaki Toru;Kanamatsu Toshiya;Iwano Hideki;Danhara Tohru;Hirata Takafumi;山崎 徹
• 通讯作者: 山崎 徹