太平洋海山钴结壳资源量估算

张富元; 章伟艳; 朱克超; 张霄宇; 倪建宇; 赵宏樵; 郑连福

doi:10.3799/dqkx.2011.001

Volume 36 Issue 1

Jan. 2011

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ZHANG Fu-yuan, ZHANG Wei-yan, ZHU Ke-chao, ZHANG Xiao-yu, NI Jian-yu, ZHAO Hong-qiao, ZHENG Lian-fu, 2011. Resource Estimation of Co-Rich Crusts of Seamounts in the Pacific. Earth Science, 36(1): 1-11. doi: 10.3799/dqkx.2011.001

Citation:

ZHANG Fu-yuan, ZHANG Wei-yan, ZHU Ke-chao, ZHANG Xiao-yu, NI Jian-yu, ZHAO Hong-qiao, ZHENG Lian-fu, 2011. Resource Estimation of Co-Rich Crusts of Seamounts in the Pacific. Earth Science, 36(1): 1-11. doi: 10.3799/dqkx.2011.001

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Resource Estimation of Co-Rich Crusts of Seamounts in the Pacific

doi: 10.3799/dqkx.2011.001

1.
Key Laboratory of Submarine Geosciences, State Oceanic Administration, The Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
2.
Guangzhou Marine Geological Survey of MLR, Guangzhou 510075, China
3.
Department of Earth Science, Zhejiang University, Hangzhou 310027, China

Received Date: 2010-08-31
Publish Date: 2011-01-01

Abstract

Abstract

Marine Co-rich crusts are important as potential mineral resources for Co, Ni, Cu, Mn, and other metals, as well as for the paleoenvironment signals stored in their stratigraphic layers. The higher Co, Ni and Pt contents of crusts relative to pelagic polymetallic nodules and hydrothermal deposits have made seamount crusts a potential target for commercial exploitation. In order to obtain the amount of Co-rich crust resources on seamounts in the Pacific, based on the surveying data of Co-rich crust resources on seamounts in the western Pacific by means of dredge hauling, a series of detailed research on the distribution of Co-rich crust resources and parameter index for delineation of Co-rich crust resources on seamounts in the Pacific, each seamount is endowed with the crust thickness according to its height and age of ocean crust and consequent amount of dry crust resources is at first calculated to be (507.06-1 014.11)×10⁸ t, (111.15-222.29)×10⁸ t manganese, (3.04-6.08)×10⁸ t cobalt, (2.23-4.46)×10⁸ t nickel, (0.66-1.32)×10⁸ t copper, and distributed area of crusts on seamounts in Pacific is 2 062 862 km². By means of analyzing relationships between Co-fluxes with amount of Co-deposited in the crust and crust thickness, the endowed crust thickness accounts for 6.10%-12.20% of the theoretical deductive thickness, which is close to Ku's conclusion of "the crusts were actually growing for 4% of their lifetime". It is shows that the endowed number of crust thickness is reasonable and the obtained resource amount is reliable. This paper provides a new method for estimating the amount of Co-rich crust resources on seamounts in a whole deep-sea basin.
- Pacific seamount,
- Co-rich crust,
- resources amount,
- marine geology,
- mineral resources

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References(60)

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