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Article Navigation >  Acta Sedimentologica Sinica  > 2009  >  27(1): 137-141

TANG Xiong. Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area[J]. Acta Sedimentologica Sinica, 2009, 27(1): 137-141.
Citation: TANG Xiong. Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area[J]. Acta Sedimentologica Sinica, 2009, 27(1): 137-141.
shu

Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area

  • College of Earth Sciences of Chengdu University of Thechnology, Chengdu 610059

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  • Corresponding author: TANG Xiong
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-02-10
  • The terrace of Qingyi River is very development in Ya’an area. According to lithology, flat surface and granularity of gravel in this area, the gravel root in the upper reach of Qingyi River. The direction of ancient Qingyi River from northeast to east in Wanguchang area in Yangping area, the direction of modern Qingyi River is eastnortheast all the while, the velocity has the tendency which reduces gradually. According to the terraces dating and height above sea level from early Pleistocene to Holocene Epoch, seven times tectonic uplift have taken place in Ya’an area. In Wanguchang area, the biggest uplift scope reaches 85 m,the maximum uplift rate is 0.532 mm/a; in Yangping area ,the biggest uplift scope reaches 52 m,the maximum uplift rate is 1.25 mm/a.
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Publishing history
  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2009-02-10

Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area

  • College of Earth Sciences of Chengdu University of Thechnology, Chengdu 610059
    Corresponding author: TANG Xiong
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2009-02-10

Abstract: The terrace of Qingyi River is very development in Ya’an area. According to lithology, flat surface and granularity of gravel in this area, the gravel root in the upper reach of Qingyi River. The direction of ancient Qingyi River from northeast to east in Wanguchang area in Yangping area, the direction of modern Qingyi River is eastnortheast all the while, the velocity has the tendency which reduces gradually. According to the terraces dating and height above sea level from early Pleistocene to Holocene Epoch, seven times tectonic uplift have taken place in Ya’an area. In Wanguchang area, the biggest uplift scope reaches 85 m,the maximum uplift rate is 0.532 mm/a; in Yangping area ,the biggest uplift scope reaches 52 m,the maximum uplift rate is 1.25 mm/a.

TANG Xiong. Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area[J]. Acta Sedimentologica Sinica, 2009, 27(1): 137-141.
Citation: TANG Xiong. Analysis on Characteristics of Qingyi River Quaternary Terrace in Ya’an Area[J]. Acta Sedimentologica Sinica, 2009, 27(1): 137-141.
shu

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