Zircon SHRIMP U-Pb dating for island arc volcanic rock of Fangniugou area in Yitong region of Jilin Province

Abstract

Polymetallic iron ore sulphate deposits of marine volcanic rock have been developed in the Fangniugou area, Jilin Province, China, but the division of volcanic ore-bearing strata has not been specifically elucidated and there is disagreement about the division. The sampling and SHRIMP U-Pb zircon dating of volcanic rock for Daheishan in the Fangniugou area and the northeast slope of the Duanjiadian were described. The volcanic rock formation period and recorded the volcanic events in the Daheishan mountains were systematically researched. Two samples of high-precision U-Pb zircon dating were used to represent the volcanic rock fomation period of the Late Silurian. The measured data reflect that multiple volcanic activities occurred during the Middle Silurian, Early Silurian, Middle Ordovician and Silurian, and Late Ordovician, probably matching volcanic events in the Songnan Basin identified from zircon dating. At the same time, it is confirmed that a controversial “conglomerate of Daheishan” did in fact develop in the Late Silurian, and those sections of both the Dazigou and Xinlitun-Taoshan with graptolite had been reversed.

Keywords

Yitong, Jilin Province / Fangniugou / volcanic rock / U-Pb dating / zircon SHRIMP dating / volcanic event

References

[1] PanG-t, XiaoQ-h, DengJ-f, FengY-m, ZhangK-x, ZhangZ-y, WangF-g, XingG-f, HaoG-j, FengY-fang. Subdivision of tectonic units in China [J]. Geology in China, 2009, 36(1): 1-28

[2] JiaD-cheng. The petrochemical characteristics of the early Palaeozoic island arc rock series and its evolution in the Fangniugou area of yitong county, Jilin Province [J]. Jilin Geology, 1994, 13(3): 29-31

[3] PengY J, LiD-j, XieJu. Discovery and geological significance of early Silurian graptolite formation in the taoshan area of Yitong county, Jilin Province [J]. Jilin Areal Geology, 1979, 3(1): 1-15

[4] PengY-j, SuY-zhengGeological structural characteristics of the Central Jilin Province [M], 1997, Shenyang, Shenyang Press: 335-375

[5] LiuW-z, PengY-j, WangZ-z, XieJ, FengZ-feng. Early Silurian graptolite formation in the Taoshan Area of Yitong county, Jilin Province [J]. Journal of Stratigraphy, 1982, 6(3): 209-215

[6] GaoY-gang. The discovery and geological significance of Daheishan conglomerate [J]. Jilin Geology, 1985, 2: 53-59

[7] WangD-f, LiuJ-y, YangS, YangX-z, ChenC-y, GaoQ-fu. The plate convergent belt and its minerogenetic series of early Paleozoic in Inner Mongolia -eastern Jilin [J]. Jilin Geology, 1985, 4: 41-52

[8] JiaD-cheng. The evolutionary characteristics of the early Paleozoic magma and its relation to mineral resources in the Fangniugou Area of the Yitong county [J]. Jilin Geology, 1990, 9(2): 49-56

[9] HuangX-d, ZhangX-m, PiaoS-c, LiuS-t, LianC-y, LiF-shan. Ore-forming and Halo-forming material sources of the Fangniugou pyrite polymetallic deposit, Jilin Province [J]. Mineral Deposits, 199289-95

[10] QuZ-ru. Research on genesis of polymetallic deposits in the Fangniugou Area, Jilin [J]. Jilin Geology, 1980, 2: 140-142

[11] NanR-s, ZhuC-y, ZhengY-j, LiW-g, HeX-gePalaeozoic biostratigraphy and Palaeogeography of Inner Mongolia-northeast China geosynclinal region [M], 1992, Beijing, Geological Publishing House

[12] TangK-dongTectonic evolution and metallogenic regularity of fold belts in the northern margin of the Sino-Korean Plate [M], 1992, Beijing, Peking University Press

[13] WuS-bo. The Paleozoic strata of the Jilin geosynclinal area [J]. Jilin Geology, 1994, 13(1): 1-9

[14] WangY-q, SuY-z, LiuY-erStratigraphy in northeastern China [M], 1997, Wuhan, China University of Geosciences Press

[15] LiuD-y, JianPing. 243Ma UHP and 228Ma retrograde events of the Shuanghe jadeite quartzite, eastern Dabie Mountains-SHRIMP dating, mineral inclusions and zircon REE patterns [J]. Acta Geologica Sinica, 2004, 78(2): 211-217

[16] PeiF-p, XuW-l, YangD-b, ZhaoQ-g, LiuX-m, HuZ-chu. Zircon U-Pb geochronology and geological significance of basement metamorphic rock in Songliao Basin [J]. Chinese Science Bulletin, 2006, 51(24): 2881-2887

[17] MiaoL-c, ZhangF-q, LiuD-y, ShiY-r, JiW-qiang. Zircon SHRIMP U-Pb dating for gabbro at chaotiehe in the Haicheng Area, eastern Liaoning [J]. Chinese Science Bulletin, 2010, 55(4/5): 342-349

[18] WanY-s, MiaoP-s, LiuD-y, YangC-h, WangW, WangH-c, WangZ-j, DongC-y, DuL-l, ZhouH-ying. The material source and formation age of Gaotong, Hutuo amd Dongjiao Group in North China Craton under the condition of zircon SHRIMP U-Pb dating [J]. Chinese Science Bulletin, 2010, 55(7): 572-578

[19] LiangS, PengY-j, JiangZ-long. Discussion on multi-laminate structure of basement rock in Songliao basin and its significance [J]. Global Geology, 2009, 28(4): 430-437