Interpretations of gravity and magnetic anomalies in the Songliao Basin with Wavelet Multi-scale Decomposition

Abstract

In this paper, we introduce the method of Wavelet Multi-scale Decomposition (WMD) combined with Power Spectrum Analysis (PSA) for the separation of regional gravity and magnetic anomalies. The Songliao Basin is situated between the Siberian Plate and the North China Plate, and its main structural trend of gravity and magnetic anomaly fields is NNE. The study area shows a significant feature of deep collage-type construction. According to the feature of gravity field, the region was divided into five sub-regions. The gravity and magnetic fields of the Songliao Basin were separated using WMD with a 4th order separation. The apparent depth of anomalies in each order was determined by Logarithmic PSA. Then, the shallow high-frequency anomalies were removed and the 2nd–4th order wavelet detail anomalies were used to study the basin’s major faults. Twenty-six faults within the basement were recognized. The 4th order wavelet approximate anomalies were used for the inversion of the Moho discontinuity and the Curie isothermal surface.

Keywords

gravity and magnetic anomalies / Songliao Basin / deep structure and geodynamics / Wavelet Multi-scale Decomposition / Power Spectrum Analysis

References

[1] Ai Y S, Zheng T Y, Xu W W, He Y M, Dong D (2003). A complex 660 km discontinuity beneath northeast China. Earth Planet Sci Lett, 212(1–2): 63–71

[2] Albora A M, Ucan O N (2001). Gravity anomaly separation using 2-D wavelet approach and average depth calculation. Dogus Univ J, 3: 1–12

[3] Beltrão J F, Silva J B C, Costa J C (1991). Robust polynomial fitting method for regional gravity estimation. Geophysics, 56(1): 80–89

[4] Bi S W (1997). Earth system science and sustainable development (II) the research on the dynamics model and plume tectonics features of the universal theory of the tectonics. Syst Eng Theory Pract, 7: 59–68

[5] Cheng S Y (2006). Regional Tectonic Charaeters and Meso-Cenozoic Basin Evolution in Northeastern China. Dissertation for Ph.D degree. China University of geosciences, Beijing (in Chinese with English abstract)

[6] Duncan R A, Richards M A (1991). Hot spots, mantle plumes, flood basalts, and true polar wander. Rev Geophys, 29(1): 31–50

[7] Hu X Z, Xu M J, Xie X A, Wang L S, Zhang Q L, Liu S W, Xie G A, Feng C G (2006). A characteristic analysis of aeromagnetic anomalies and Curie point isotherms in Northeast China. Chin J Geophys, 49(6): 1533–1681 (in Chinese)

[8] Huang H L, Zhao D P (2006). High-resolution mantle tomography of China and surrounding regions. J Geophys Res, B09305, doi: 10.1029/2005JB004066

[9] Lee D T L, Yamamoto A (1994). Wavelet analysis: theory and applications. Hewlett Packard journal, 45: 44–44

[10] Li J, Chen Q F, Vanacore E, Niu F (2008). Topography of the 660-km discontinuity beneath northeast China: Implications for a retrograde motion of the subducting Pacific slab, Geophys Res Lett, 35, L01302

[11] Li J Y (2006). Permian geodynamic setting of Northeast China and adjacent regions: closure of the Paleo-Asian Ocean and subduction of the Paleo-Pacific Plate, J Asian Earth Sci, 26, 207–224

[12] Li X Q, Yuan X H (2003). Receiver functions in northeast China-implications for slab penetration into the lower mantle in northwest Pacific subduction zone. Earth Planet Sci Lett, 216(4): 679–691

[13] Li Y, Oldenburg D W (1998). Separation of regional and residual magnetic field data. Geophysics, 63(2): 431–439

[14] Liu G D, HAO T Y, Liu Y K (1996). The significance of gravity and magnetic research for knowing sedimentary basin. Prog Geophys, 11: 1–15 (in Chinese)

[15] Mallat S (1989). Multifrequency Channel decomposition and wavelet models IEEE ANS. On Acoustics, 37:209–211

[16] Mallick K, Sharma K K (1999). A finite element method for computation of the regional gravity anomaly. Geophysics, 64(2): 461–469

[17] Mickus K L, Aiken C L V, Kennedy W D (1991). Regional-residual gravity anomaly separation using the minimum-curvature technique. Geophysics, 56(2): 279–283

[18] Ren J Y, Tamaki K, Li S T, Junxia Z (2002). Late Mesozoic and Cenozoic rifting and its dynamic setting in Eastern China and adjacent areas. Tectonophysics, 344(3–4): 175–205

[19] Shen X Z, Zhou H L (2009). The low-velocity layer at the depth of 620 km beneath Northeast China. Chin Sci Bull, 54(17): 3067–3075

[20] Sun B, Wang L S, Dong P, Wu Y J, Li C B, Hu B, Wang C (2012). Integrated analysis on gravity and magnetic fields of the Hailar Basin, NE China: implications for basement structure and deep tectonics. Pure Appl Geophys, 169(11): 2011–2029

[21] Wang X W, Liu Y Y (1997). Pre-mesozoic tectonic evolution and its relation with development of late Mesozoic basin in northeast China. Geoscience, 11(4): 434–443

[22] Wu F Y, Sun D Y, Li H M, Wang X L (2001). The nature of basement beneath the Songliao Basin in NE China: geochemical and isotopic constraints. 2nd Symposium on Chemical Geodynamics

[23] Xiao W J, Windley B, Hao J, Zhai M G (2003). Accretion leading to collision and the Permian Solonker suture, Inner Mongolia, China: termination of the Central Asian Orogenic Belt. Tectonics, 2002TC001484

[24] Xu W L, Ji W Q, Pei F P, Meng E, Yu Y, Yang D B, Zhang X (2009). Triassic volcanism in eastern Heilongjiang and Jilin provinces, NE China: chronology, geochemistry, and tectonic implications. Journal of Asian Earth Sciences, 34(2009): 392–402

[25] Xu Y, Hao T Y, Li Z W, Duan Q L, Zhang L L (2009). Regional gravity anomaly separation using wavelet transform and spectrum analysis. Journal of Geophysics and Engineering, 6: 279–287

[26] Yang B J, Mu S M, Jin X, Liu C (1996). Synthesized study on the geophysics of Manzhouli-Suifenhe geoscience transect, China. Chin J Geophys, 39: 772–782 (in Chinese)

[27] Yang W C, Shi Z Q, Hou Z Z (2001). Discrete wavelet transform for multiple decomposition of gravity anomalies. Chinese journal of geophysics, 44(4): 529–537

[28] Zhang F X, Zhang X Z, Zhang F Q, Meng L S, Xue J (2010). Study of gravity field in Northeastern China area: classification of main structure lines and tectonic units using the improved three-directional small subdomain filtering. Chin J Geophys, 53(6): 1475–1485 (in Chinese)

[29] Zhang M, Suddaby P, Thompson R N, Thirlwall M F, Menzies M A (1995). Potassic volcanic-rocks in NE China-geochemical on mantle source and magma genesis. J Petrol, 36(5): 1275–1303

[30] Zhao D P (2004). Global tomographic images of mantle plumes and subducting slabs: insight into deep Earth dynamics, Phys Earth Planet Inter, 146, 3–34

[31] Zhao Y, Yang Z Y, Ma X H (1994). Geotectonic transition from paleosian system and paleotethyan system to paleopacific active continental margin in eastern Asia. Chinese Journal of Geology, 29(2): 105–119 (in Chinese)

[32] Zhu G Z, Shi Y L, Paul T (2010). Subduction of the Western Pacific Plate underneath Northeast China: implications of numerical studies. Phys Earth Planet Inter, 178(1–2): 92–99

Acknowledgements

This work has been supported financially by the National Science and Technology Major Project (2011ZX05009-001). We thank the China Aero Geophysical Survey & Remote Sensing Center (AGRS) and the Daqing Oilfield for providing the gravity and magnetic data used in this study. The two anonymous reviewers are thanked for their help to improve this contribution.

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg