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Tectonic boundaries in the South China Sea from aeromagnetic signature.

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Title: Tectonic boundaries in the South China Sea from aeromagnetic signature.
Authors: Luo, Yao1 geophy@vip.qq.com, Yin, Hang1, Liu, Qiang1, Li, Jingmin1, Liu, Shihua1, Gao, Wei1, Li, Rui1, Yang, Yi1
Source: Journal of Oceanology & Limnology. Mar2023, Vol. 41 Issue 2, p550-561. 12p.
Subject Terms: *Geomagnetic maps, *Structural geology, *Geologic faults, *Deconvolution in seismic reflection
Geographic Terms: South China Sea
Abstract: Magnetic data has been widely applied in the tectonic division. High-resolution magnetic data were used to analyze the geotectonic zoning of the South China Sea. Based on the newly compilated magnetic data, the processing results and the distribution of known faults, we consider that the U-shaped line approximately along the South China Sea national boundary of China shown in the magnetic map is a significant geological and geophysical boundary. We first described the linear characteristics of the magnetic data and then applied pseudo-gravity, Euler deconvolution, tilt derivatives, and the texture segmentation method to process the data. Results show that the dividing line between the South China Sea and the surrounding blocks is approximately along this U-shaped line. The dividing line between the South China domain and the South China Sea domain is along with the Dongsha Islands to Xisha Trough, which is different from the previous geophysical zoning results. Our results are almost consistent with those of the gravity data indicating roughly the tectonic zonation along the U-shaped line. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
FullText Text:
  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 163942051
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Tectonic boundaries in the South China Sea from aeromagnetic signature.
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  Data: <searchLink fieldCode="AR" term="%22Luo%2C+Yao%22">Luo, Yao</searchLink><relatesTo>1</relatesTo><i> geophy@vip.qq.com</i><br /><searchLink fieldCode="AR" term="%22Yin%2C+Hang%22">Yin, Hang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Qiang%22">Liu, Qiang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Jingmin%22">Li, Jingmin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Shihua%22">Liu, Shihua</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gao%2C+Wei%22">Gao, Wei</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li%2C+Rui%22">Li, Rui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Yi%22">Yang, Yi</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Oceanology+%26+Limnology%22">Journal of Oceanology & Limnology</searchLink>. Mar2023, Vol. 41 Issue 2, p550-561. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Geomagnetic+maps%22">Geomagnetic maps</searchLink><br />*<searchLink fieldCode="DE" term="%22Structural+geology%22">Structural geology</searchLink><br />*<searchLink fieldCode="DE" term="%22Geologic+faults%22">Geologic faults</searchLink><br />*<searchLink fieldCode="DE" term="%22Deconvolution+in+seismic+reflection%22">Deconvolution in seismic reflection</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22South+China+Sea%22">South China Sea</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Magnetic data has been widely applied in the tectonic division. High-resolution magnetic data were used to analyze the geotectonic zoning of the South China Sea. Based on the newly compilated magnetic data, the processing results and the distribution of known faults, we consider that the U-shaped line approximately along the South China Sea national boundary of China shown in the magnetic map is a significant geological and geophysical boundary. We first described the linear characteristics of the magnetic data and then applied pseudo-gravity, Euler deconvolution, tilt derivatives, and the texture segmentation method to process the data. Results show that the dividing line between the South China Sea and the surrounding blocks is approximately along this U-shaped line. The dividing line between the South China domain and the South China Sea domain is along with the Dongsha Islands to Xisha Trough, which is different from the previous geophysical zoning results. Our results are almost consistent with those of the gravity data indicating roughly the tectonic zonation along the U-shaped line. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=163942051
RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s00343-022-2043-z
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 550
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      – SubjectFull: Geomagnetic maps
        Type: general
      – SubjectFull: Structural geology
        Type: general
      – SubjectFull: Geologic faults
        Type: general
      – SubjectFull: Deconvolution in seismic reflection
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      – SubjectFull: South China Sea
        Type: general
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      – TitleFull: Tectonic boundaries in the South China Sea from aeromagnetic signature.
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            NameFull: Luo, Yao
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            NameFull: Yin, Hang
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            NameFull: Liu, Shihua
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            NameFull: Gao, Wei
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              M: 03
              Text: Mar2023
              Type: published
              Y: 2023
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