Seabed mining for India
نویسندگان
چکیده
منابع مشابه
Going Deep: Cautious Steps toward Seabed Mining
The ocean floor is home to a wealth of species, some of which—such as this bamboo coral (Isidella tentaculum)—have only recently been discovered. Proponents of seabed mining claim it causes less ecological damage than terrestrial extraction. But some researchers are concerned that seabed mining could overwhelm deep-sea ecosystems, adding to concerns about the health of the oceans.
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Gold was obtained through washing or panning of the river sands during initial periods of civilisation. With the advent of knowledge of metallurgical processing of ores it was recovered through mining of in-situ quartz reefs, and then from auriferous sulphide ores. The metal mining activities are evidenced in the form of large number of ‘ancient metal mines’ or ‘old workings’ and ‘placer mining...
متن کاملUnderwater Video Mosaicing for Seabed Mapping
This paper presents improved techniques and applications in mosaicing of underwater video images. The applications are of use to many marine scientists. High resolution seabed maps are created. The improvements in the processing relate to removal of interframe variability and lighting, speed up of the mosaicing process and improved accuracy in the estimation of the transformation parameters. Re...
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Rising demand for minerals and metals, including for use in the technology sector, has led to a resurgence of interest in exploration of mineral resources located on the seabed. Such resources, whether seafloor massive (polymetallic) sulfides around hydrothermal vents, cobalt-rich crusts (CRCs) on the flanks of seamounts or fields of manganese (polymetallic) nodules on the abyssal plains, canno...
متن کاملSeabed Image Mosaicing for Benthic Species Counting
Counting benthic species from sea floor imagery is useful for evaluating the state of the local ecosystem. These images being taken by digital still Cameras mounted on ROVs (Remote Operating Vehicles) are used to capture images of animals on the seabed. The overlap between images must be detected in order to eliminate the possibility of counting the same individual more than once. In order to p...
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ژورنال
عنوان ژورنال: Nature
سال: 1987
ISSN: 0028-0836,1476-4687
DOI: 10.1038/329094c0