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Volume 16 Issue 2
Jun 2005
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Gaowen He, Donghong Liang, Chengbin Song, Xiaoming Sun, Shuigen Wu, Jianping Zhou, Xuehua Zhang. An Effective Method to Determine the Distribution Boundary of Cobalt-Rich Fe-Mn Crusts on a Guyot: Synchronous Application of Sub-bottom Profiling and Deep-Sea Video Recording. Journal of Earth Science, 2005, 16(2): 178-182.
Citation: Gaowen He, Donghong Liang, Chengbin Song, Xiaoming Sun, Shuigen Wu, Jianping Zhou, Xuehua Zhang. An Effective Method to Determine the Distribution Boundary of Cobalt-Rich Fe-Mn Crusts on a Guyot: Synchronous Application of Sub-bottom Profiling and Deep-Sea Video Recording. Journal of Earth Science, 2005, 16(2): 178-182.

An Effective Method to Determine the Distribution Boundary of Cobalt-Rich Fe-Mn Crusts on a Guyot: Synchronous Application of Sub-bottom Profiling and Deep-Sea Video Recording

Funds:

COMRA grant cruise DY105-16A

COMRA grant DY105-01-02-1

COMRA grant DY105-01-01-1

  • Received Date: 28 Feb 2005
  • Accepted Date: 30 Mar 2005
  • Determining the upper boundary of the cobalt-rich crust distribution of a guyot is important for estimating the mineral resources available, however, it has also long been an unsolved question. Correlations between the sub-bottom structures, revealed by sub-bottom profiling, and crust distribution can be revealed for the first time by the synchronous application of sub-bottom profiling and deep-sea video recording. The lower boundary of the sediment corresponds with the upper boundary of the crust. By analysis of these two kinds of data, the lower boundary of the sediment can be determined; therefore, the upper boundary of the crust distribution can be deduced. According to this method of analysis, the upper boundary of water depth of crust distribution of a seamount in the western Pacific is about 1 560 m.

     

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    Haggerty, J. A., Premoli, S. I., 1995. A Comparison of the Origin and Evolution of Northwest Pacific Guyots Drilled during Leg 144. Proceedings of the Ocean Drilling Program, Scientific Results, 144: 935-949
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    Yang, S. X., Chu, F. Y., He. G. W., et al., 2004. Initial Report of DY105-16A Cruise (in Chinese)
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