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Chemical composition of manganese nodules from the Central Pacific Ocean
61 manganese nodules from 31 sites in the Central Pacific Ocean were obtained during CCOP/SOPAC cruises in 1980, and from the core collections at the University of Hawaii,... -
Annotated record of the detailed examination of an Mn deposit surveyed in the...
he proposed mining of ferromanganese deposits from the deep sea will affect benthic and pelagic environments depending to a great extent on the method of nodule retrieval and... -
(Table 1, pages 646) Uranium, thorium and protactinium analyses of selected m...
The Th230/Pa231 activity ratio in 7 of 11 manganese nodules is less than 10.8, the theoretical production ratio of activities in the ocean. This finding indicates difierential... -
Annotated record of the detailed examination of Mn deposits recovered from dr...
The cores and dredges described in this report were taken during the R/V Robert Conrad 9 Expedition from October 1964 until September 1965 by the Lamont Geological Observatory,... -
(Table 1, page 418) 10Be measurements inside a ferromanganese crust of the At...
The growth rate of a manganese nodule from the South Atlantic Ocean (Rio Grande Ridge) has been determined using a 10Be profile as measured with a Tandem Van de Graaff... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores and dredges described in this report were taken during the Robert Conrad Cruise 8 from November 1963 until August 1964 by the Lamont Geological Observatory, Columbia... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores and dredges described in this report were taken during the Robert Conrad Cruise 7 from July until October 1963 by the Lamont Geological Observatory, Columbia... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores described in this report were taken during the R/V Robert Conrad Cruise 06 from May until June 1963 by the Lamont Geological Observatory, Columbia University. A total... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores described in this report were taken during the R/V Robert Conrad Cruise 05 from March until April 1963 by the Lamont Geological Observatory, Columbia University. A... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores described in this report were taken during the R/V Robert Conrad Cruise 04 in March 1963 by the Lamont Geological Observatory, Columbia University. A total of 9 cores... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores described in this report were taken during the R/V Robert Conrad Cruise 02 from 26 until 28 January 1963 by the Lamont Geological Observatory, Columbia University. A... -
Annotated record of the detailed examination of Mn deposits from R/V Robert C...
The cores described in this report were taken during the R/V Robert Conrad Cruise 01 from 4 until 20 December 1962 by the Lamont Geological Observatory, Columbia University. A... -
(Table 1, Pages 189-191) Physical characteristics of manganese nodules collec...
Intensive surveys were made in an abyssal hill province in the North Atlantic at the northeast edge of the Nares Abyssal Plain, where the general conditions favorable for the... -
(Table 2, Page 275) Elemental concentrations in manganese nodules used in sea...
The gross changes in concentrations of several trace elements in seawater after contact with ferro-manganese particle suspensions has been determined. Cobalt, Fe, and Zn... -
Annotated record of the detailed examination of Mn deposits from RC 10 Expedi...
The cores, dredges and bottom photographs described in this report were taken during the RC 10 Expedition from December 1965 until December 1966 by the Lamont Geological... -
(Table 11-I, page 338) Metal contents (%) of a representative sampling of man...
Two types of deep-sea dredges are currently under development for the mining of the manganese nodules, a deep-sea hydraulic dredge and a mechanical cable-bucket system. Both... -
Analysis of Manganese deposits from the Atlantic and Indian oceans
Accumulation rates of 1-2 mm/million years are reported for manganese crusts on deep-sea rocks. These rates are the same as most reported accretion rates for manganese nodules... -
Analysis of Fe-Mn-deposits from the ocean
A compilation of published and unpublished chemical analyses of samples of ferromanganese deposits from the ocean floor reveals that only in relatively few areas of the world... -
Observation and measurements on Mn nodules from cruise RC15
The cores and dredges described in this report were taken during the RC15 Expedition from October 1971 until July 1972 by the Lamont Geological Observatory, Columbia University... -
Maximum annual SST estimates during the early LIG (129-124 ka; 189 sites)
Drift correction has not been applied to the two coral sites!Drift correction could not be applied to four sites in a land box when located using OFES.
