Geology of the Proterozoic basement rocks and Permo-Triassic allochthons in the Geonggi massif, Korean Peninsula

朝鲜半岛京畿地块元古界基底岩及二叠纪-三叠纪异土地质

• 批准号: 21540471
• 负责人: SUZUKI Kazuhiro
• 金额: $ 2.83万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21540471/
• 关键词: 京畿地塊; CHIME年代測定; 原生代グラニュライト; ペルム.三畳紀変成岩; 異地性岩体; モナザイト; 年代マッピング; 大陸衝突; ペルム-三畳紀変成岩; 衝上体; 原生グラニュライト

The Gyeonggi massif in the Korean Peninsula comprises granulite-and amphibolite-facies units that are separated by an extensive mylonite zone. Granulites distant from the mylonite zone yield CHIME ages of c. 1860Ma. Granulites near the mylonite zone show growth of cordierite and biotite aggregates around garnet grains after the ductile shearing, and yield 247-240Ma monazite domains on and within c. 1860 Ma monazite grains. The paragneisses in the amphibolite-facies unit contain Neoproterozoic detrital zircon grains and monazite grains with unequivocal metamorphic ages of 251-243Ma. Two crustal units underwent differing evolutional histories prior to amalgamation. The Permo-Triassic amphibolite-facies unit detached from the Yangtzu block and was thrust over the granulite-facies unit of the North China block during the Sulu orogeny. Permo-Triassic metamorphic overprints on the latter are attributed to contact metamorphism from the hot allochthon.

朝鲜半岛的京畿地块由麻粒岩相和角闪岩相单元组成，这些单元被广泛的糜棱岩带分隔开。远离糜棱岩带的粒岩产生 c 的 CHIME 年龄。 1860Ma。糜棱岩区附近的粒岩显示，在韧性剪切后，堇青石和黑云母聚集体在石榴石颗粒周围生长，并在 c 上和内产生 247-240Ma 独居石域。 1860年马独居石颗粒。角闪岩相单元中的副片麻岩含有新元古代碎屑锆石颗粒和独居石颗粒，其明确的变质年龄为251-243Ma。两个地壳单元在合并之前经历了不同的演化历史。二叠纪-三叠纪角闪岩相单元在苏禄造山运动期间从扬子地块脱离并被逆冲到华北地块的麻粒岩相单元之上。后者上的二叠纪-三叠纪变质叠印归因于热异地的接触变质作用。

项目成果

Using P-T paths to interpret the tectono thermal setting of prograde metamorphism an example fromthe northeastern

利用P-T路径解释前变质作用的构造热背景——以东北地区为例

• DOI: 10.1016/j.precamres.2010.12.002
• 发表时间: 2011
• 期刊: Precambrian Research
• 影响因子: 3.8
• 作者: Forbes;C. J.;Giles;D.;Hand;M.;Betts;P. G.;Suzuki;K.;Chalmers;N.;and Dutch;R.
• 通讯作者: R.

CHIME geochronology of granitic gneiss from Baekdong in the Hongseong area of the Gyeonggi Massif

京畿地块洪城地区白洞花岗片麻岩的 CHIME 年代学

• 发表时间: 2010
• 期刊: Journal of Earth and Planetary Sciences
• 作者: Suzuki;K.;Chwae;U.;Dunkley;D. J.;Kim;S. W.;Kajizuka;I. and Minami;M.
• 通讯作者: M.

Permo-Triassicoverprint on the Paleoproterozoic granulites with in the Gyeonggi massif of the Korean Peninsula, revealed by the CHIME dating and age mapping of monazite

朝鲜半岛京畿地块古元古代麻粒岩的二叠纪-三叠纪覆盖印迹，由独居石的 CHIME 测年和年龄测绘揭示

• 发表时间: 2012
• 作者: Suzuki;K. and Chwae;U
• 通讯作者: U

Melanite from the endoskarn of as pessartite dyke intruding in to the Kinshozan limestone in Ogaki City

侵入大垣市金松山石灰岩的锰铝榴石岩脉的内皮卡岩中的黑色长石

• 发表时间: 2011
• 期刊: Journal of Earth and Planetary Sciences
• 作者: Suzuki;K.;Dunkley;D. J. and Kajizuka;I.
• 通讯作者: I.

CHIME geochronology of granitic gneiss from Baekdong in the Hongseong area of the Gyeonggi Massif, South Korea.

韩国京畿地块洪城地区白洞花岗岩片麻岩的 CHIME 地质年代学。

• 发表时间: 2010
• 期刊: Journal of Earth and Planetary Sciences, Nagoya University
• 作者: Suzuki;K;Chwae;U;Dunkley;D J;Kim;S W;Kajizuka;I. Minami;M.
• 通讯作者: M.