DOI: 10.1007/s00531-015-1272-1
Scopus记录号: 2-s2.0-84946949525
论文题名: Structural interpretation of the Chuan-Dian block and surrounding regions using discrete wavelet transform
作者: Xuan S. ; Shen C. ; Li H. ; Tan H.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2016
卷: 105, 期: 5 起始页码: 1591
结束页码: 1602
语种: 英语
英文关键词: Bouguer gravity anomalies
; Chuan-Dian block
; Crustal structure
; Discrete wavelet transform
; Moho relief
Scopus关键词: Bouguer anomaly
; crustal structure
; data interpretation
; Moho
; transition zone
; wavelet analysis
; China
; Chuandian
; Qinghai-Xizang Plateau
英文摘要:
The Chuan-Dian tectonic block is a transitional zone between the Tibetan Plateau and the South China block. The crustal structure in this region has been studied in several ways, and in this work we present Bouguer gravity anomaly data with which to investigate the Chuan-Dian block and surrounding regions. Regional and local anomalies are decomposed using a method of discrete wavelet transform (DWT), and furthermore, the relief of the Moho is inverted based on the regional anomalies. Results of the transform show that there is a distinct belt of regional anomalies on the east and southeast margins of the Tibetan Plateau. In addition, there are two distinct gradient belts evident in the maps of the local gravity anomalies. The first of these, in the western Indo-China block, has a north–south strike with high anomalies around this belt, and the second is along the Longmenshan fault zone in the eastern margin of the Tibetan Plateau. The Chuan-Dian block can be divided into two discrete parts, separated by a broad and indistinct boundary observed from the fifth-order DWT detail and Moho relief. The DWT details reveal that parallel anomalies existing in the Indo-China block region were induced by subduction of the Burmese block. We conclude that the clockwise rotation of the Chuan-Dian block was synthetically affected by the extrusion of the Tibetan lithosphere and subduction of the Burmese block. © 2015, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946949525&doi=10.1007%2fs00531-015-1272-1&partnerID=40&md5=b5491256cbf9cf3ef3679b949df4b7b7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70151
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Administration, Wuhan, China
Recommended Citation:
Xuan S.,Shen C.,Li H.,et al. Structural interpretation of the Chuan-Dian block and surrounding regions using discrete wavelet transform[J]. International Journal of Earth Sciences,2016-01-01,105(5)