{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282680171720064.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.9795/bullgsj.53.43"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"6233644"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/6233644"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I6233644"}},{"identifier":{"@type":"URI","@value":"https://dl.ndl.go.jp/pid/9676592"}},{"identifier":{"@type":"NAID","@value":"130005063582"}},{"identifier":{"@type":"NAID","@value":"10008700893"}}],"dc:title":[{"@language":"ja","@value":"熊野酸性火成岩類の古地磁気方位"},{"@language":"en","@value":"Paleomagnetic direction of the Kumano Acidic Igneous Rocks, Kii peninsula, Japan."},{"@language":"ja-Kana","@value":"クマノ サンセイ カセイガンルイ ノ コ チジキ ホウイ"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Samples of the Middle Miocene （～14.3 Ma) Kumano Acidic Igneous Rocks (KAIRs) collected at eight sites were measured for determining a paleomagnetic direction. Stepwise demagnetization with both alternating-field and thermal methods successfully isolated two remanent magnetization components, high-temperature (high-T) or high-coercivity (high C) component and low T or low C one, from natural remanent magnetization in many specimens. The Konogi Rhyolite, a thick pile of rhyolite flows at the lower part of the KAIRs, has an easterly deflected direction of normal polarity, while welded tuff and granite porphyry at the middle and upper part respectively possess a steeply inclined, southwesterly-deflected direction of reversed polarity. These characteristics of paleomagnetic direction are basically the same as reported previously (Tagami, 1982). The clockwise-deflected direction was considered by the previous study as representing a clockwise rotation of the southwest Japan arc after the emplacement of the KAIRs. The present study, however, interprets that the clockwise-deflected direction is of non tectonic origin because there are many lines of paleomagnetic evidence suggesting the termination of the clockwise arc rotation by 15 Ma. The clockwise-deflected direction of the KAIRs would have been acquired in an extraordinary geomagnetic field during a polarity transition or excursion. Furthermore, the similarity of the direction of the tuff and granite porphyry to that of the Muro Pyroclastic Flow Deposit, also dated at about 14.3 Ma, implies that these units are genetically associated with each other."},{"@language":"ja","@value":"中新統熊野酸性火成岩類（約14.3Ma）の試料を8地点、から採取し，残留磁化を測定した．段階交流および熱消磁により，多くの試片から2つの残留磁化成分（高温または高保磁力成分と低温または低保磁力成分）が分離された．高温または高保磁力成分の試片特徴磁化方位から4つの地点、平均特徴磁化方位が決定された．神ノ木流紋岩（本火成岩類下部の流紋岩溶岩流）は正帯磁の東偏磁化を持ち，本火成岩類中部および下部の溶結凝灰岩および花崗斑岩はSW向きで伏角が深い逆帯磁磁化を持つ．これらの方位特徴は基本的に過去の研究（田上，1982) で報告された特徴と同じである．この時計まわり方向に偏向した方位は，これまで西南日本の時計まわり回転運動を表すものと考えられてきた．しかし，15Maには西南日本の回転は終了していたとする古地磁気学的な証拠が多くあるため，本研究はこの偏向を非テクトニックな原因，すなわち磁場逆転またはエクスカーションの間の普段とは異なる磁場状態の中で獲得された磁化と解釈する．また，溶結凝灰岩と花崗斑岩の古地磁気方位と室生火砕流堆積物（約14.3Ma）の方位にみられる類似は， これらのユニットが成図的に関連していることを示唆する．"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420282801191492736","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"90293737"},{"@type":"NRID","@value":"1000090293737"},{"@type":"ORCID","@value":"0000-0002-9920-2205"},{"@type":"NRID","@value":"9000390884781"},{"@type":"NRID","@value":"9000265555458"},{"@type":"NRID","@value":"9000254739070"},{"@type":"NRID","@value":"9000004875566"},{"@type":"NRID","@value":"9000408584371"},{"@type":"NRID","@value":"9000408657551"},{"@type":"NRID","@value":"9000347166727"},{"@type":"NRID","@value":"9000006929273"},{"@type":"NRID","@value":"9000258125790"},{"@type":"NRID","@value":"9000414254670"},{"@type":"NRID","@value":"9000004609658"},{"@type":"NRID","@value":"9000237947270"},{"@type":"NRID","@value":"9000401647714"},{"@type":"NRID","@value":"9000000649349"},{"@type":"NRID","@value":"9000300217258"},{"@type":"NRID","@value":"9000254740478"},{"@type":"NRID","@value":"9000000073802"},{"@type":"NRID","@value":"9000008124069"},{"@type":"NRID","@value":"9000014234658"},{"@type":"NRID","@value":"9000414254838"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/hiroyuki_hoshi"}],"foaf:name":[{"@language":"ja","@value":"星 博幸"},{"@language":"en","@value":"HOSI Hiroyuki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Department of Earth Sciences, Aichi University of Education; also Institute of Geoscience, GSJ"},{"@language":"ja","@value":"愛知教育大学理科教育講座地学領域；地球科学情報研究部門併任"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"13464272"},{"@type":"LISSN","@value":"13464272"},{"@type":"EISSN","@value":"2186490X"},{"@type":"NDL_BIB_ID","@value":"000000405158"},{"@type":"ISSN","@value":"13464272"},{"@type":"NCID","@value":"AA11587519"}],"prism:publicationName":[{"@language":"en","@value":"BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN"},{"@value":"地質調査研究報告"},{"@language":"en","@value":"Bull. Geol. Surv. Japan"},{"@value":"地調研報"}],"dc:publisher":[{"@language":"en","@value":"National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan"},{"@language":"ja","@value":"国立研究開発法人 産業技術総合研究所 地質調査総合センター"}],"prism:publicationDate":"2002","prism:volume":"53","prism:number":"1","prism:startingPage":"43","prism:endingPage":"50"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://id.ndl.go.jp/bib/6233644"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I6233644"},{"@id":"https://dl.ndl.go.jp/pid/9676592"}],"availableAt":"2002","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Kii%20Peninsula","dc:title":"Kii Peninsula"},{"@id":"https://cir.nii.ac.jp/all?q=Kumano%20Acidic%20Igneous%20Rocks","dc:title":"Kumano Acidic Igneous Rocks"},{"@id":"https://cir.nii.ac.jp/all?q=paleomagnetism","dc:title":"paleomagnetism"},{"@id":"https://cir.nii.ac.jp/all?q=tectonics","dc:title":"tectonics"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360009142900693120","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Identification of the source caldera for the Middle Miocene ash‐flow tuffs in the Kii Peninsula based on apatite trace‐element composition"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011144519371520","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Arcuate pyroclastic conduits, ring faults, and coherent floor at Kumano caldera, southwest Honshu, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285710504477056","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Paleomagnetic constraints on <scp>M</scp>iocene rotation in the central <scp>J</scp>apan <scp>A</scp>rc"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567185481194880","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Instantaneous paleomagnetic record from the <scp>M</scp>iocene <scp>K</scp>ozagawa <scp>D</scp>ike of the <scp>K</scp>umano <scp>A</scp>cidic <scp>R</scp>ocks, <scp>K</scp>ii <scp>P</scp>eninsula, <scp>S</scp>outhwest <scp>J</scp>apan: cautionary note on tectonic interpretation"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699994816466304","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The evidence of along-arc differential uplift of the Shimanto accretionary complex: Fission track thermochronology of the Kumano Acidic Rocks, Southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981469341452416","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Deformation of the Wineglass Welded Tuff and the timing of caldera collapse at Crater Lake, Oregon"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470441989760","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The least-squares line and plane and the analysis of palaeomagnetic data"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420323560064","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Rapid rotation of southwest Japan-palaeomagnetism and K-Ar ages of Miocene volcanic rocks of southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544420893629056","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Differential rotation of the eastern part of southwest Japan inferred from paleomagnetism of Cretaceous and Neogene rocks"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369876877568","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Reversals of the Earth's Magnetic Field"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107370267243264","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The Lava Lakes of Kilauea"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951795234392320","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"When was the Japan Sea Opened?: Paleomagnetic Evidence from Southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206217078656","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Paleomagnetic results and K-Ar dating on miocene rocks in the northern part of Fukui Prefecture, Central Japan. With reference to the rotation of southwest Japan."},{"@value":"福井県北部新第三系のＫ‐Ａｒ年代と古地磁気　西南日本ブロックの回転に関して"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206235143424","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Refined Neogene diatom biostratigraphy for the northwest Pacific around Japan, with an introduction of code numbers for selected diatom biohorizons."},{"@language":"ja","@value":"日本周辺北西太平洋における新第三紀珪藻化石層序の細分改訂と珪藻生層準へのコード番号の導入"},{"@language":"ja-Kana","@value":"Refined Neogene diatom biostratigraphy"},{"@value":"Refined Neogene diatom biostratigraphy for the northwest Pacific around Japan, with and introduction of code numbers for selected diatom biohorizons"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206235305472","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Fission-track dating of the Setouchi volcanic rocks: An example from the Nijo Group, Kinki district, southwest Japan."},{"@value":"瀬戸内火山岩類のフィッション・トラック年代測定　　近畿地方，二上層群の例"},{"@language":"ja-Kana","@value":"セトウチ カザンガンルイ ノ フィッション トラック ネンダイ ソクテイ キンキ チホウ ニ ジョウソウグン ノ レイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206236850560","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Correlation of the Muro Pyroclastic Flow Deposit and the adjacent tuffs in northern Kii Peninsula, southwest Japan, and their source: an approach from mode analysis using refractive index of light minerals"},{"@language":"ja","@value":"紀伊半島北部の室生火砕流堆積物と周辺に分布する凝灰岩の対比およびそれらの給源：軽鉱物屈折率を用いたモード分析によるアプローチ"},{"@language":"ja-Kana","@value":"キイ ハントウ ホクブ ノ ムロウ カサイリュウ タイセキブツ ト シュウヘン ニ ブンプスル ギョウカイガン ノ タイヒ オヨビ ソレラ ノ キュウゲン ケイコウブツ クッセツリツ オ モチイタ モード ブンセキ ニ ヨル アプローチ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206236852608","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Regional variation of whole rock chemistry of the Miocene felsic igneous rocks in the Kii Peninsula, southwest Japan"},{"@language":"ja","@value":"紀伊半島中新世珪長質火成岩類の全岩組成の広域的変化"},{"@language":"ja-Kana","@value":"キイ ハントウ チュウシンセイ ケイチョウシツ カセイガンルイ ノ ゼンガン ソセイ ノ コウイキテキ ヘンカ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206236984192","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A Middle Miocene widespread tephra in the Nanatani Formation of the Niigata sedimentary basin, northeast Japan: Correlation between the Kbi tephra and the Muro Pyroclastic Flow Deposit in Kii Peninsula"},{"@language":"ja","@value":"新潟堆積盆七谷層中に見つかった中期中新世広域テフラ：Kbiテフラと紀伊半島室生火砕流堆積物の対比"},{"@language":"ja-Kana","@value":"ニイガタ タイセキボン ナナタニソウ チュウ ニ ミツカッタ チュウキ チュウシンセイ コウイキ テフラ Kbi テフラ ト キイハントウ ムロオ カサイリュウ タイセキブツ ノ タイヒ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206237444864","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Geology of the Central and Southern Parts of the Acid Igneous Complex (Kumano Acidic Rocks) in Southeastern Kii Peninsula"},{"@value":"熊野酸性火成岩類の中部および南部の地質"},{"@language":"ja-Kana","@value":"クマノ サンセイ カセイガンルイ ノ チュウブ オヨビ ナンブ ノ チシツ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206237453184","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Temporal relationship between the northern and the southern parts of the Kumano Acidic Rocks and the Muro Pyroclastic Flow Deposit, Kii Peninsula, Japan, examined by comparison of paleomagnetic directions"},{"@language":"ja","@value":"古地磁気方位の比較からみた熊野酸性岩類北部と南部及び室生火砕流堆積物の時間関係"},{"@language":"ja-Kana","@value":"コ チジキ ホウイ ノ ヒカク カラ ミタ クマノ サンセイガンルイ ホクブ ト ナンブ オヨビ ムロウ カサイリュウ タイセキブツ ノ ジカン カンケイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206237546752","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Fission track ages on apatite from Miocene igneous rocks in the Kii Peninsula, Japan"},{"@language":"ja","@value":"紀伊半島，中新世火成岩類のアパタイトのフィッション・トラック年代"},{"@language":"ja-Kana","@value":"キイハントウ チュウシンセイ カセイガンルイ ノ アパタイト ノ フィッション トラック ネンダイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206238160128","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Paleomagnetism and rock magnetism of Miocene dikes in the Nakaoku area, Nara Prefecture, central Kii Peninsula, Japan"},{"@language":"ja","@value":"紀伊半島中央部, 奈良県中奥地域にみられる中新世岩脈の古地磁気と岩石磁気"},{"@language":"ja-Kana","@value":"キイハントウ チュウオウブ ナラケン ナカ オクチイキ ニ ミラレル チュウシンセイガン ミャク ノ コ チジキ ト ガンセキ ジキ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206544986368","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Paleomagnetism of the Nijo Group and its implication for the timing of clockwise rotation of southwest Japan."}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679211241984","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"室生火砕流堆積物の給源火山"},{"@language":"en","@value":"The source volcano for the Murou pyroclastic-flow deposit in the Southwest Japan"},{"@language":"ja-Kana","@value":"ムロオ カサイリュウ タイセキブツ ノ キュウゲン カザン"},{"@value":"The source volcano for the Murou pyroclastic‐flow deposit in the Southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679526819584","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"K-Ar ages of granitic rocks from the Outer Zone of Southwest Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681211351680","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Re-examination on K-Ar age of the Kumano Acidic Rocks in Kii Peninsula, Southwest Japan."},{"@value":"Ｋ‐Ａｒ法による熊野酸性火成岩類の年代の再検討"},{"@language":"ja-Kana","@value":"K-Arホウ ニヨル クマノ サンセイ カセイガンルイ ノ ネンダイ ノ サイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681213561984","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Simultaneity and similarity of the Muro Pyroclastic Flow Deposit and the Kumano Acidic Rocks in Kii Peninsula, southwest Japan, based on fission track ages and morphological characteristics of zircon"},{"@language":"ja","@value":"ジルコンのフィッション・トラック年代と特徴からみた室生火砕流堆積物と熊野酸性岩類の同時性と類似性"},{"@language":"ja-Kana","@value":"ジルコン ノ フィッション トラック ネンダイ ト トクチョウ カラ ミタ ムロウ カサイリュウ タイセキブツ ト クマノ サンセイガンルイ ノ ドウジセイ ト ルイジセイ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681213564032","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Widespread correlation of Middle Miocene tephras in Japan: a possible link between the Kn-1 tuff (Boso Peninsula) and the Muro Pyroclastic Flow Deposit (Kii Peninsula)"},{"@language":"ja","@value":"中期中新世テフラの広域対比：房総半島Kn-1凝灰岩と紀伊半島室生火砕流堆積物"},{"@language":"ja-Kana","@value":"チュウキ チュウシンセイ テフラ ノ コウイキ タイヒ ボウソウ ハントウ Kn 1 ギョウカイガン ト キイ ハントウ ムロウ カサイリュウ タイセキブツ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681213584768","@type":"Article","relationType":["isReferencedBy","isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A ring dike and a subhorizontal sheet intrusion in a volcano-plutonic complex: geology of the Kumano Acidic Rocks in the Owase-Kumano area, Kii Peninsula, Japan"},{"@language":"ja","@value":"火山－深成複合岩体にみられる環状岩脈とシート状貫入岩：紀伊半島，尾鷲－熊野地域の熊野酸性火成岩類の地質"},{"@language":"ja-Kana","@value":"カザン シンセイ 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