大别-苏鲁构造带三叠纪碰撞缝合线的位置

索书田; 钟增球; 游振东

Volume 25 Issue 2

Mar. 2000

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Article Navigation > Earth Science > 2000 > 25(2): 111-116

SUO Shutian, ZHONG Zengqiu, YOU Zhendong, 2000. LOCATION OF TRIASSIC TECTONIC SUTURE LINE BET WEEN COLLIDED SINO-KOREAN AND YANGTZE CRATONS IN DABIE-SULU TECTONIC ZONE. Earth Science, 25(2): 111-116.

Citation:

SUO Shutian, ZHONG Zengqiu, YOU Zhendong, 2000. LOCATION OF TRIASSIC TECTONIC SUTURE LINE BET WEEN COLLIDED SINO-KOREAN AND YANGTZE CRATONS IN DABIE-SULU TECTONIC ZONE. Earth Science, 25(2): 111-116.

SUO Shutian, ZHONG Zengqiu, YOU Zhendong, 2000. LOCATION OF TRIASSIC TECTONIC SUTURE LINE BET WEEN COLLIDED SINO-KOREAN AND YANGTZE CRATONS IN DABIE-SULU TECTONIC ZONE. Earth Science, 25(2): 111-116.

Citation:

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LOCATION OF TRIASSIC TECTONIC SUTURE LINE BET WEEN COLLIDED SINO-KOREAN AND YANGTZE CRATONS IN DABIE-SULU TECTONIC ZONE

Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China

Received Date: 1999-08-31
Publish Date: 2000-03-25

Abstract

Abstract

The distribution of ultrahigh pressure metamorphic (U HPM) and high pressure metamorphic (HPM) rocks and the geometrical relationship between various petrotectonic units in the Dabie－Sulu tectonic zone both indicate that the suture line that occurred when the Sino－Korean and Yangtze cratons collided and when the ultrahigh pressure and high pressure metamorphic rocks were generated, are situated at the northern margin of the Dabie massif.This suture line is distributed along the Balifan－Mozitan－Xiaotian fault, and possibly linked to the Wulian－Yantai fault, the position of the suture line violently modified in the Sulu region.The large-scale distribution of the U HP and HP metamorphic rocks near the boundary between Huoshan County and Yuexi County and in the adjacent area of Shucheng, Tongcheng and Qianshan counties in the north of Dabie Mountains, indicates that the Shuihou－Wuhe fault is not the northern limit of the U HP and HP eclogitic-facies rock.Therefore, this Shuihou－Wuhe fault does not represent the position of the suture line.In addition, the geological implication of the classification of the terrane as "Southern Dabie" and "Northern Dabie" is not accurate.At the same time, The mafic and ultramafic rock mass groups include the deformed harzburgite, pure peridotite assemblage and undeformed pyroxenite, bojite and gabbro assemblage. The first type of mafic-ultramafic rock bodies contain the same deformed and metamorphic and geometrical features as the eclogitic facies rocks.The second type of mafic-ultramafic rocks are intrusive bodies in the Yanshanian period (123－130Ma).Therefore, the mafic-ultramafic rocks are not defined as the "metamorphic ophiolitic mélange", or interpreted as the suture line in the T riassic continent-continent collision period.It is emphasized that the accurate identification of the position of the T riassic collision suture line is the key to the correct understanding of the formation and reciprocal dynamic process of the U HP and HP rocks.
- Dabie-Sulutectoniczone,
- UHPMandHPM,
- sutureline

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References(24)

References

[1]	李曙光, 李惠民, 陈移之, 等. 大别山-苏鲁地体超高压变质年代学——Ⅱ. 锆石U-Pb同位素体系[J]. 中国科学(D辑), 1997, 27(3): 200~206. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK199703001.htm
[2]	Chavagnac V, Jahn B M. Coesite-bearing eclogites from the Bixiling complex, Dabie Mountains, China: Sm-Nd ages, geochemical characteristics and tectonic implications [J]. Chemical Geology, 1996, 133: 29~51. doi: 10.1016/S0009-2541(96)00068-X
[3]	Hacker B R, Wang Q C. Ar/Ar geochronology of ultrahigh-pressure metamorphism in central China[J]. Tectonics, 1995, 14(4): 994~1006. doi: 10.1029/95TC00932
[4]	Ames L, Zhou G Z, Xiong B C. Geochronology and geochemistry of ultrahigh-pressure metamorphism with implication for collision of the Sino-Korean and Yangtze Cratons, Central China[J]. Tectonics, 1996, 15(2): 472~489. doi: 10.1029/95TC02552
[5]	Maruyama S, Tabata H, Nutman A B, et al. SHRIMP UPb geochronology of ultrahigh-pressure metamorphic rocks of the Dabie Mountains, central China[J]. Continental Dynamics, 1998, 3(1~2): 72~85.
[6]	Zhai M G, Cong B L, Zhao Z Y, et al. Petrologica-ltectonic units in the coesite-bearing metamorphic terrain of the Dabie Mountains, Central China and their geotectonic implications[J]. Journal of Southeast Asian Earth Sciences, 1995, 11(1): 1~13. doi: 10.1016/0743-9547(94)00036-E
[7]	Wang Q C, Liu X H, Maruyama S, et al. Top boundary of the Dabie UHPM rocks, Central China[J]. Journal of Southeast Asian Earth Sciences, 1995, 11(4): 295~300. doi: 10.1016/0743-9547(94)00035-D
[8]	徐树桐, 江来利, 刘贻灿, 等. 大别山区(安徽部分)的构造格局和演化过程. 地质学报, 1992, 66(1): 1~15. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE199201000.htm
[9]	索书田, 钟增球, 游振东. 大别地块超高压变质期后伸展变形及超高压变质岩石折返过程[J]. 中国科学(D辑), 2000, (1): 9~17. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200001001.htm
[10]	游振东, 钟增球, 张泽明. 桐柏-大别山区高压变质相的构造配置[J]. 地学前缘, 1999, 6(4): 237~245. doi: 10.3321/j.issn:1005-2321.1999.04.006
[11]	索书田. 大别地块超高压变质省的构造变形研究[J]. 地学前缘, 1999, 6(4): 255~262. doi: 10.3321/j.issn:1005-2321.1999.04.008
[12]	Ree J H, Cho M, Kwon S T, et al. Possible eastward extension of Chinese collision belt in South Korea: the Imjingang belt[J]. Geology, 1996, 24 (12): 1071~1074. doi: 10.1130/0091-7613(1996)024<1071:PEEOCC>2.3.CO;2
[13]	魏春景, 单振刚, 张立飞, 等. 北大别榴辉岩的确定及其地质意义[J]. 科学通报, 1997, 42(17): 1832~1835. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB199717011.htm
[14]	Suo S T, Zhong Z Q. Sequence of ductile shear zone in UHP metamorphic province within Dabie massif, China [J]. Journal of China University of Geosciences, 1998, 9 (3): 189~195.
[15]	Tsai C H, Liou J G, Ernst W G. Eclogite facies relics and retrogressed garnet peridotite in the North Dabie complex, centra-l eastern China, and suggested implications for regional tectonics[A]. In: International Workshop on UHP Metamorphism and Exhumation[C]. Calif: Stanford Univ, 1998. A153~154.
[16]	Zhong Z Q, Suo S T, You Z D. Extensional tectonic framework of post high and ultrahigh pressure metamorphism in Dabieshan, China[J]. Journal of China University of Geosciences, 1998, 9(1): 1~5.
[17]	葛宁洁, 侯振辉, 李惠民, 等. 大别造山带岳西沙村镁铁质- 超镁铁质岩体的锆石U -Pb年龄. 科学通报, 1999, 44(19): 2110~2113. https://www.cnki.com.cn/Article/CJFDTOTAL-KXTB200006020.htm
[18]	Zhang R Y, Liou J G, Tsai C H. Petrogenesis of a hightemperature metamorphic terrane: a new tectonic interpretation for the north Dabieshan, Central China[J]. J metamorphic Geol, 1996, 14(3): 319~333.
[19]	Hacker B R, Ratschbacher L, Webb L. U/Pb zircon ages constrain the architecture of the ultrahigh-pressure Qinling-Dabie orogen, China[J]. Earth and Planetary Science Letters, 1998, 161(1~4): 215~230.
[20]	Mattauer M. Intracontinental subduction, crust-mantle decollement and crusta-l stacking wedge in the Himalayas and other collision belts[A]. In: Caward M P, Ries A C, eds. Collision tectonics[C]. London: Geological Society Special Publication, 1986, 19: 37~50.
[21]	刘景波, 国连杰, 吴颍. 豫南-鄂北大别山北部高压角闪石榴辉岩的研究[J]. 地质科学, 1997, 32(4): 409~422. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX704.000.htm
[22]	马文璞. 大别山北麓的石炭系及其大地构造意义. 地质学报, 1991, 65(1): 17~26. https://www.cnki.com.cn/Article/CJFDTOTAL-DZXE199101001.htm
[23]	张国伟, 孟庆任, 于在平, 等. 秦岭造山带的造山过程及其动力学特征[J]. 中国科学(D辑), 1996, 26(3): 193~200. https://www.cnki.com.cn/Article/CJFDTOTAL-JDXK199603000.htm
[24]	Meng Q R, Zhang G W. Timing of collision of the North and South China blocks: controversy and reconciliation [J]. Geology, 1999, 27(2): 123~126