华北克拉通上地幔顶部构造特征:来自台站间Pn波到时差成像的约束
摘要
上地幔顶部是地壳和岩石圈地幔能量传递和物质交换的关键区域,华北克拉通破坏与岩石圈减薄在空间分布和破坏机制上的差异势必会造成克拉通不同区域在岩石圈地幔顶部地震波速度的不同.使用华北及周边地区固定地震台站记录的Pn波到时数据,采用台站间Pn波到时差成像方法,反演得到了华北克拉通及周边地区上地幔顶部Pn波速度结构.结果显示:华北克拉通东部、中部和西部块体上地幔顶部表现出明显不同的速度异常结构,暗示着克拉通不同块体岩石圈在古生代以来可能经历了不同的构造演化和深部动力学过程,并在现今上地幔顶部留下作用的痕迹.华北克拉通东部块体渤海湾盆地地区上地幔顶部的明显高速异常可能代表了太古代岩石圈地幔的残留;郯庐断裂带和渤海海域上地幔顶部的低速异常可能归因于岩石圈的强烈减薄和软流圈热物质的上涌;而燕山地区下地壳和岩石圈地幔拆沉后形成的新生岩石圈地幔可能是这里上地幔顶部低速异常的原因.华北克拉通中部块体的太行山一带上地幔顶部显示为显著的低速异常,这一低速异常特征一直延伸到鄂尔多斯地块北缘的银川-河套裂陷和阴山造山带,可能与软流圈热物质沿克拉通西部块体周缘岩石圈构造薄弱带上涌有关,上涌形成的岩浆底侵或热侵蚀作用造成了岩石圈的减薄,并显著降低了上地幔顶部的速度.华北克拉通西部块体上地幔顶部为明显的高速异常,反映出尚未破坏的太古代克拉通古老岩石圈的性质.
引文
1吴福元,徐义刚,高山,等.华北岩石圈减薄与克拉通破坏研究的主要学术争论.岩石学报,2008,24:1145–1174
2范蔚茗,Menzies M A.中国东部古老岩石圈下部的破坏和软流圈地幔的增生.大地构造与成矿学,1992,16:171–180
3Menzies M A,Fan W,Zhang M.Palaeozoic and Cenozoic lithoprobes and the loss of>120km of Archaean lithosphere,Sino-Korean Craton,China.In:Prichard H M,Alabaster T,Harris N B W,et al,eds.Magmatic Processes and Plate Tectonics.Geol Soc Spec Pub,1993,76:71–78
4Zhao G,Wilde A,Cawood A,et al.Archean blocks and their boundaries in the North China Craton:Lithological,geochemical,structural and P-T path constraints and tectonic evolution.Precambrian Res,2001,107:45–73
5Chen L,Wang T,Zhao L,et al.Distinct lateral variation of lithospheric thickness in the Northeastern North China Craton.Earth Planet Sci Lett,2008,267:56–68
6郑永飞,吴福元.克拉通岩石圈的生长与再造.科学通报,2009,54:1945–1949
7朱日祥,郑天愉.华北克拉通破坏机制与古元古代板块构造体系.科学通报,2009,54:1950–1961
8Gao S,Rudnick R,Carlson R W,et al.Re-Os evidence for replacement of ancient mantle lithosphere beneath the North China Craton.Earth Planet Sci Lett,2002,198:307–322
9Gao S,Rudnick R,Yuan H,et al.Recycling lower continental crust in the North China Craton.Nature,2004,432:892–897
10Gao S,Rundnick R,Xu W,et al.Recycling deep cratonic lithosphere and generation of intraplate magmatism in the North China Craton.Earth Planet Sci Lett,2008,270:41–53
11高山,章军锋,许文良,等.拆沉作用与华北克拉通破坏.科学通报,2009,54:1962–1973
12Xu Y G.Thermo-tectonic destruction of the Archean lithospheic keel beneath the Sino-Korean Craton in China:Evidence,timing and mechanism.Phys Chem Earth,2001,26:747–757
13Chen L,Cheng C,Wei Z.Seismic evidence for significant lateral variations in lithospheric thickness beneath the central and western North China Craton.Earth Planet Sci Lett,2009,286:171–183
14Huang Z X,Li H Y,Zheng Y J,et al.The lithosphere of North China Craton from surface wave tomography.Earth Planet Sci Lett,2009,288:164–173
15Tian Y,Zhao D,Sun R,et al.Seismic imaging of the crust and upper mantle beneath the North China Craton.Phys Earth Planet Inter,2009,172:169–182
16Xu P F,Zhao D.Upper-mantle velocity structure beneath the North China Craton:Implications for lithospheric thinning.Geophys J Int,2009,170:1095–1099
17Hearn T M.Anisotropic Pn tomography in the western United States.J Geophys Res,1996,101:8403–8414
18Hearn T M,Wang S,Ni J F,et al.Uppermost mantle velocities beneath China and surrouding regions.J Geophys Res,2004,109:B11301
19Pei S,Zhao J,Sun Y,et al.Upper mantle seismic velocities and anisotropy in China determined through Pn and Sn tomography.J Geo-phys Res,2007,112:B05312
20Li Z W,Roecker S,Li Z H,et al.Tomographic image of the crust and upper mantle beneath the western Tien Shan from the MANAS broadband deployment:Possible evidence for lithospheric delamination.Tectonophysics,2009,477:49–57
21汪素云,许忠淮,裴顺平.华北地区上地幔顶部Pn波速度结构及其构造含义.中国科学D辑:地球科学,2003,33(增刊):91–98
22李娟.首都圈地区Pn和PmP波层析成像研究.博士学位论文.北京:中国地震局地球物理研究所,2003.1–110
23Phillips W S,Rowe C A,Steck L K.The use of interstation P wave arrival time differences to account fore regional path variability.Geo-phys Res Lett,2005,32:L11301
24Seward A M,Henderson C M,Smith E G C.Models of the upper mantle beneath the central North Island,New Zealand,from speeds and anisotropy of subhorizontal P waves(Pn).J Geophys Res,2009,114:B01301
25Liang C,Song X,Huang J.Tomographic inversion of Pn travel times in China.J Geophys Res,2004,109:B11304
26Li C,van der Hilst R,Nafi T M.Constraining P-wave velocity variations in the upper mantle beneath Southeast Asia.Phys Earth Planet Inter,2006,154:180–195
27Zhao L,Allen R M,Zheng T,et al.Reactivation of an Archean craton:Constraints from P-and S-wave tomography in North China.Geo-phys Res Lett,2009,36:L17306
28Huang J,Zhao D.High-resolution mantle tomography of China and surrounding regions.J Geophys Res-Solid Earth,2006,111:B09305
29李志伟,胥颐,郝天珧,等.环渤海地区的地震层析成像与地壳上地幔结构.地球物理学报,2006,49:797–804
30Lei J,Xie F,Lan C,et al.Seismic images under the Beijing region inferred from P and PmP data.Phys Earth Planet Inter,2008,168:134–146
31Chen L,Zheng T,Xu W.A thinned lithospheric image of the Tanlu Fault Zone,northeastern China,constructed from wave equation based receiver function migration.J Geophys Res,2006,111:B09312
32Zheng T,Zhao L,Zhu R.Insight into the geodynamics of cratonic reactivation from seismic analysis of the crust-mantle boundary.Geo-phys Res Lett,2008,35:L08303
33徐义刚,李洪颜,庞崇进,等.论华北克拉通破坏的时限.科学通报,2009,54:1974–1989
34Zheng T,Zhao L,Xu W W,et al.Insight into modification of North China Craton from seismological study in the Shandong Province.Geophys Res Lett,2008,35:L22305
35郝天珧,刘伊克,段昶.中国东部及其邻域地球物理场特征与大地构造意义.地球物理学报,1997,40:677–690
36Tang Y,Zhang H,Ying J.Asthenosphere-lithospheric mantle interaction in an extensional regime:Implication from the geochemistry of Cenozoic basalts from Taihang mountains,North China Craton.Chem Geol,2006,233:309–327
37Cammarano F,Goes S,Vacher P,et al.Inferring upper-mantle temperatures from seismic velocities.Phys Earth Planet Inter,2003,138:197–222
38Hu S B,He L J,Wang J Y.Heat flow in the continental area of China:A new data set.Earth Planet Sci Lett,2000,179:407–419
39Zhao D.Global tomographic images of mantle plumes and subducting slabs:Insight into deep Earth dynamics.Phys Earth Planet Inter,2004,146:3–34
40Lei J,Zhao D.P-wave tomography and origin of the Changbai intraplate volcano in northeast Asia.Tectonophysics,2005,397:281–295
41Lei J,Zhao D.Global P-wave tomography:On the effect of various mantle and core phases.Phys Earth Planet Inter,2006,154:44–69
2范蔚茗,Menzies M A.中国东部古老岩石圈下部的破坏和软流圈地幔的增生.大地构造与成矿学,1992,16:171–180
3Menzies M A,Fan W,Zhang M.Palaeozoic and Cenozoic lithoprobes and the loss of>120km of Archaean lithosphere,Sino-Korean Craton,China.In:Prichard H M,Alabaster T,Harris N B W,et al,eds.Magmatic Processes and Plate Tectonics.Geol Soc Spec Pub,1993,76:71–78
4Zhao G,Wilde A,Cawood A,et al.Archean blocks and their boundaries in the North China Craton:Lithological,geochemical,structural and P-T path constraints and tectonic evolution.Precambrian Res,2001,107:45–73
5Chen L,Wang T,Zhao L,et al.Distinct lateral variation of lithospheric thickness in the Northeastern North China Craton.Earth Planet Sci Lett,2008,267:56–68
6郑永飞,吴福元.克拉通岩石圈的生长与再造.科学通报,2009,54:1945–1949
7朱日祥,郑天愉.华北克拉通破坏机制与古元古代板块构造体系.科学通报,2009,54:1950–1961
8Gao S,Rudnick R,Carlson R W,et al.Re-Os evidence for replacement of ancient mantle lithosphere beneath the North China Craton.Earth Planet Sci Lett,2002,198:307–322
9Gao S,Rudnick R,Yuan H,et al.Recycling lower continental crust in the North China Craton.Nature,2004,432:892–897
10Gao S,Rundnick R,Xu W,et al.Recycling deep cratonic lithosphere and generation of intraplate magmatism in the North China Craton.Earth Planet Sci Lett,2008,270:41–53
11高山,章军锋,许文良,等.拆沉作用与华北克拉通破坏.科学通报,2009,54:1962–1973
12Xu Y G.Thermo-tectonic destruction of the Archean lithospheic keel beneath the Sino-Korean Craton in China:Evidence,timing and mechanism.Phys Chem Earth,2001,26:747–757
13Chen L,Cheng C,Wei Z.Seismic evidence for significant lateral variations in lithospheric thickness beneath the central and western North China Craton.Earth Planet Sci Lett,2009,286:171–183
14Huang Z X,Li H Y,Zheng Y J,et al.The lithosphere of North China Craton from surface wave tomography.Earth Planet Sci Lett,2009,288:164–173
15Tian Y,Zhao D,Sun R,et al.Seismic imaging of the crust and upper mantle beneath the North China Craton.Phys Earth Planet Inter,2009,172:169–182
16Xu P F,Zhao D.Upper-mantle velocity structure beneath the North China Craton:Implications for lithospheric thinning.Geophys J Int,2009,170:1095–1099
17Hearn T M.Anisotropic Pn tomography in the western United States.J Geophys Res,1996,101:8403–8414
18Hearn T M,Wang S,Ni J F,et al.Uppermost mantle velocities beneath China and surrouding regions.J Geophys Res,2004,109:B11301
19Pei S,Zhao J,Sun Y,et al.Upper mantle seismic velocities and anisotropy in China determined through Pn and Sn tomography.J Geo-phys Res,2007,112:B05312
20Li Z W,Roecker S,Li Z H,et al.Tomographic image of the crust and upper mantle beneath the western Tien Shan from the MANAS broadband deployment:Possible evidence for lithospheric delamination.Tectonophysics,2009,477:49–57
21汪素云,许忠淮,裴顺平.华北地区上地幔顶部Pn波速度结构及其构造含义.中国科学D辑:地球科学,2003,33(增刊):91–98
22李娟.首都圈地区Pn和PmP波层析成像研究.博士学位论文.北京:中国地震局地球物理研究所,2003.1–110
23Phillips W S,Rowe C A,Steck L K.The use of interstation P wave arrival time differences to account fore regional path variability.Geo-phys Res Lett,2005,32:L11301
24Seward A M,Henderson C M,Smith E G C.Models of the upper mantle beneath the central North Island,New Zealand,from speeds and anisotropy of subhorizontal P waves(Pn).J Geophys Res,2009,114:B01301
25Liang C,Song X,Huang J.Tomographic inversion of Pn travel times in China.J Geophys Res,2004,109:B11304
26Li C,van der Hilst R,Nafi T M.Constraining P-wave velocity variations in the upper mantle beneath Southeast Asia.Phys Earth Planet Inter,2006,154:180–195
27Zhao L,Allen R M,Zheng T,et al.Reactivation of an Archean craton:Constraints from P-and S-wave tomography in North China.Geo-phys Res Lett,2009,36:L17306
28Huang J,Zhao D.High-resolution mantle tomography of China and surrounding regions.J Geophys Res-Solid Earth,2006,111:B09305
29李志伟,胥颐,郝天珧,等.环渤海地区的地震层析成像与地壳上地幔结构.地球物理学报,2006,49:797–804
30Lei J,Xie F,Lan C,et al.Seismic images under the Beijing region inferred from P and PmP data.Phys Earth Planet Inter,2008,168:134–146
31Chen L,Zheng T,Xu W.A thinned lithospheric image of the Tanlu Fault Zone,northeastern China,constructed from wave equation based receiver function migration.J Geophys Res,2006,111:B09312
32Zheng T,Zhao L,Zhu R.Insight into the geodynamics of cratonic reactivation from seismic analysis of the crust-mantle boundary.Geo-phys Res Lett,2008,35:L08303
33徐义刚,李洪颜,庞崇进,等.论华北克拉通破坏的时限.科学通报,2009,54:1974–1989
34Zheng T,Zhao L,Xu W W,et al.Insight into modification of North China Craton from seismological study in the Shandong Province.Geophys Res Lett,2008,35:L22305
35郝天珧,刘伊克,段昶.中国东部及其邻域地球物理场特征与大地构造意义.地球物理学报,1997,40:677–690
36Tang Y,Zhang H,Ying J.Asthenosphere-lithospheric mantle interaction in an extensional regime:Implication from the geochemistry of Cenozoic basalts from Taihang mountains,North China Craton.Chem Geol,2006,233:309–327
37Cammarano F,Goes S,Vacher P,et al.Inferring upper-mantle temperatures from seismic velocities.Phys Earth Planet Inter,2003,138:197–222
38Hu S B,He L J,Wang J Y.Heat flow in the continental area of China:A new data set.Earth Planet Sci Lett,2000,179:407–419
39Zhao D.Global tomographic images of mantle plumes and subducting slabs:Insight into deep Earth dynamics.Phys Earth Planet Inter,2004,146:3–34
40Lei J,Zhao D.P-wave tomography and origin of the Changbai intraplate volcano in northeast Asia.Tectonophysics,2005,397:281–295
41Lei J,Zhao D.Global P-wave tomography:On the effect of various mantle and core phases.Phys Earth Planet Inter,2006,154:44–69
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心