Title: Method for determination of economically interesting metals in content of manganese nodules

Abstract: Presence of metals such as copper and nickel being economically interesting etals are determined as to existence thereof in the content of manganese nodules according to a method by means of analysis of the activation gamma spectrum of manganese nodule samples after a neutron irradiation thereon. The sample is irradiated with fast neutrons and from the resulting gamma spectrum the ratio of radiation intensities of two main component parts preferably manganese and iron is taken in order to determine the percentage metal content by way of empirically obtained geochemical correlation-data which reproduce the percentage parts of further elements dependent upon proportional ratio of two main elements of the manganese lumps.

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Inventors: Michaelis, Walfried (Seevetal, DT)
Muller, Agmar (Kroppels-hagen, DT)
Fanger, Hans Ulrich (Reinbek, DT)
Pepelnik, Rudolf (Bornsen, DT)

Application Number: 700129
Filing Date: 1976-06-28
Publication_date: 1978-05-16
Assignee: Gesellschaft fur Kernenergie in Schiffbau u. Schiffahrt mbH (Geesthacht-Tesperhude, DT)
Primary Class(es): 376/159 250/253, 250/255
Other Classes:
US Patent Ref:

3638020	Jan, 1972	Duffey et al.	250/253.
3792253	Feb, 1974	Wylie et al.	250/253.
3942003	Mar, 1976	Apenberg et al.	250/255.

Other Refs:
Primary Examiner: Borchelt, Archie R.
Assistant Examiner:
Attorney: Becker; Walter