Interpretation to the seismic profile of Navarinsky Canyon, Bering Sea

Xiao Wentao; Zheng Yulong; Zhang tao; Gao Jinyao

doi:10.3969/j.issn.0253-4193.2014.10.007

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Xiao Wentao, Zheng Yulong, Zhang tao, Gao Jinyao. Interpretation to the seismic profile of Navarinsky Canyon, Bering Sea[J]. Haiyang Xuebao, 2014, 36(10): 61-68. doi: 10.3969/j.issn.0253-4193.2014.10.007

Citation:

Xiao Wentao, Zheng Yulong, Zhang tao, Gao Jinyao. Interpretation to the seismic profile of Navarinsky Canyon, Bering Sea[J]. Haiyang Xuebao, 2014, 36(10): 61-68. doi: 10.3969/j.issn.0253-4193.2014.10.007

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Interpretation to the seismic profile of Navarinsky Canyon, Bering Sea

doi: 10.3969/j.issn.0253-4193.2014.10.007

Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Laboratory of Submarine Geosciences, State Oceanic Administration, Hangzhou 310012, China

Received Date: 2013-12-25
Rev Recd Date: 2014-07-25

Abstract

Abstract

High resolution single channel seismic operation was carried out in the Bering Sea during the 5th Chinese National Expedition. Asymmetric sand waves were identified on line BL11-12 seismic profile in the head of Navarinsky Canyon. The steep faces of asymmetric sand waves were on-shelf direction, the averaged wave height was 9 m and length was 882 m. There was a sedimentary depression at the end of line BL11-12 seismic profile. Combined the sedimentation rate of site U1345 and Vp of superficial sediment at site U1344, Infered that sand waves began deposit and sedimentary depression was filled since the Middle Pleistocene(about 0.258 Ma). Stratum was divided into three sediments. Analyzing changes of grain size on the profile, we can speculate the surface relating to the maximum regression combined with the change of the bering sea level. Taking every aspect into consideration, draw conclusion that sand waves formed during the low sea level in Middle Pleistocene, and internal wave played a significant role.
- Navarinsky Canyon,
- seismic profile,
- sand waves

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References(22)

References

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