ICAR Research Data Repository for Knowledge Management
Nodules size: An important factor in nodule mining?
DRS at CSIR-National Institute of Oceanography
View Archive Info| Field | Value | |
| Title |
Nodules size: An important factor in nodule mining?
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| Creator |
Valsangkar, A.B.
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| Subject |
ferromanganese nodules
grain size deep-sea mining |
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| Description |
A study of about 850 different sized nodules from 234 sites in the Central Indian Basin (CIB) showed a clear inverse relationship between size and grade of nodules. Among the different sized nodules, only the small (less than 2 cm) and medium (2-4 cm) sized fractions have higher grade (Cu + Ni + Co = 2.6 and 2.5%, respectively) and highest weight percentages at every dredge haul. It is probably recommended that in CIB only small nodules will have to be processed after screening by size. In order to minimize ecological and environmental problems, it is emphasized that the nodules should be screened on sea bottom during mining, which may be possible by future technological modification of mining devises
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| Date |
2009-01-25T06:05:33Z
2009-01-25T06:05:33Z 1995 |
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| Type |
Conference Article
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| Identifier |
The Proceedings of the First (1995) ISOPE Ocean Mining Symposium, eds. Yamazaki, T.; Aso, K.; Okano, Y.; Tsurusaki, K. 113-118p.
http://drs.nio.org/drs/handle/2264/2357 |
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| Language |
en
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| Rights |
Copyright [1995]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
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| Publisher |
Int. Soc. of Offshore and Polar-Eng.(ISOPE), Colorado, USA
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