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Geomagnetic field intensity determination from Pleistocene trachytic lava flows in Jeju Geopark

文献类型：期刊论文

作者Jeong, Doohee1; Yu, Yongjae1; Liu, Qingsong2; Jiang, Zhaoxia2; Koh, Gi Won3; Koh, Dong-Chan4
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
出版日期2014-03-01
卷号15期号:3页码:516-529
关键词paleointensity Jeju Geopark trachytic lava Pleistocene magnetite
ISSN号1525-2027
DOI10.1002/2013GC005028
文献子类Article
英文摘要A composite of 28 trachytic lava flows were recovered from the Jeju Geopark Drilling Project (JGDP) in Jeju Geopark, one of the new seven wonders of Nature declared by UNESCO in 2011. Each trachytic lava flow has a tendency to increase in magnetic grain size from the rapidly cooled brecciated margin and vesicle streaked zone downward into the massive crystalline flow interiors. The brecciated margin and vesicle streaked zone of individual trachytic lava flow contains exclusively fine-grained magnetite as inclusions in plagioclase. High-fidelity paleointensity determinations were obtained from 26 (out of 224 examined) samples from JGDP cores. Temporal variation of virtual axial dipole moments (VADMs) calculated from the absolute paleointensity estimates follows the trend of sint-800 data for the interval from similar to 80 to similar to 360 ka. High VADM from flow 21 possibly represents real intensity peak, as previously recognized high VADM in Japan at similar to 336 ka, in Trans-Mexican volcanism similar to 339, and in Hawaii similar to 340-350 ka. Perhaps such a strong magnetic intensity near similar to 325-350 ka might be smoothed out in relative paleointensity records.
WOS关键词PALEOMAGNETIC INCLINATION DATA ; EARTHS MAGNETIC-FIELD ; CURVE FORC DIAGRAMS ; PYROCLASTIC SURGES ; CRYSTAL-GROWTH ; BIG ISLAND ; GRAIN-SIZE ; PALEOINTENSITY ; PLAGIOCLASE ; KOREA
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000336232600002
出版者AMER GEOPHYSICAL UNION
资助机构National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; National Research Foundation of Korea (NRF) - Korea government (MSIP)(NRF-2013R1A2A1A01004418) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070) ; Korea Meteorological Administration Research and Development Program(CATER-2013-8070)
源URL[http://ir.iggcas.ac.cn/handle/132A11/85852]  
专题中国科学院地质与地球物理研究所
通讯作者Jeong, Doohee
作者单位1.Chungnam Natl Univ, Dept Geol & Earth Environm Sci, Taejon 305764, South Korea
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.Jeju Special Self Governing Prov Dev Corp, Water Ind Res Ctr, Cheju, South Korea
4.Korea Inst Geosci & Mineral Resources, Taejon, South Korea
推荐引用方式
GB/T 7714		 Jeong, Doohee,Yu, Yongjae,Liu, Qingsong,et al. Geomagnetic field intensity determination from Pleistocene trachytic lava flows in Jeju Geopark[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2014,15(3):516-529.
APA Jeong, Doohee,Yu, Yongjae,Liu, Qingsong,Jiang, Zhaoxia,Koh, Gi Won,&Koh, Dong-Chan.(2014).Geomagnetic field intensity determination from Pleistocene trachytic lava flows in Jeju Geopark.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,15(3),516-529.
MLA Jeong, Doohee,et al."Geomagnetic field intensity determination from Pleistocene trachytic lava flows in Jeju Geopark".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 15.3(2014):516-529.

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来源：地质与地球物理研究所

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