Annotated record of the detailed examination of Mn deposits from R/V Atlantis Cruise 160 stations

The cores described were taken by the personnel of the Lamont-Doherty Earth Observatory (LDEO) operating as guests scientists during the R/V Atlantis Cruise 160 undertaken by the Woods Hole Oceanographic Institution from Januray until April 1950. A total of 23 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from VEMA 3 Expedition stations

The cores and dredges described in this report were taken during the VEMA 3 Expedition from January 1957 until June 1954 by the Lamont Geological Observatory, Columbia University from the R/V Vema. A total of 160 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Robert Conrad Cruise 06 stations

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 of 5 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Atlantis Cruise 179 stations

The cores described were taken by the personnel of the Lamont-Doherty Earth Observatory (LDEO) operating as guests scientists during the R/V Atlantis Cruise 179 undertaken by the Woods Hole Oceanographic Institution from April until May 1952. A total of 25 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from VEMA 5 Expedition stations

The cores and dredges described in this report were taken during the VEMA 5 Expedition from November until December 1954 by the Lamont Geological Observatory, Columbia University from the R/V Vema. A total of 48 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Atlantis Cruise 164 stations

The cores described were taken by the personnel of the Lamont-Doherty Earth Observatory (LDEO) operating as guests scientists during the R/V Atlantis Cruise 164 undertaken by the Woods Hole Oceanographic Institution from July until September 1950. A total of 63 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Rehoboth Cruise 5 stations

The cores described in this list were taken on the RE05 Expedition in March 1950 by the Lamont-Doherty Earth Observatory from the R/V Rehoboth. A total of 13 cores were recovered and are available at LDEO for sampling and study.

Annotated record of the detailed examination of Mn deposits from VEMA 4 Expedition stations

The cores and dredges described in this report were taken during the VEMA 4 Expedition from July until September 1954 by the Lamont Geological Observatory, Columbia University from the R/V Vema. A total of 54 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Atlantis Cruise 180 stations

The cores described were taken by the personnel of the Lamont-Doherty Earth Observatory (LDEO) operating as guests scientists during the R/V Atlantis Cruise 180 undertaken by the Woods Hole Oceanographic Institution from July until October 1952. A total of 118 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from R/V Atlantis Cruise 185 stations

The cores described were taken by the personnel of the Lamont-Doherty Earth Observatory (LDEO) operating as guests scientists during the R/V Atlantis Cruise 185 undertaken by the Woods Hole Oceanographic Institution from April until June 1953. A total of 65 cores were recovered and are available at Lamont-Doherty Earth Observatory for sampling and study.

Annotated record of the detailed examination of Mn deposits from DSDP Site 160, Leg 16 (Cores 16-160-1, 16-160-2 and 16-160-3)

DSDP 160 forms part of a series of sites in the eastern equatorial Pacific on the west flank of the East Pacific Rise. Earlier legs of the Deep Sea Drilling Project, in particular Legs 5 and 9, have reported sediments rich in oxides of iron and perhaps other transition metals just above basement in the eastern Pacific. These occurrences roughly define a broad zone on the west flank of the rise. Site DSDP 160 lies on this trend and were selected by the Pacific Site Selection Panel to test the extent of such deposits.

Annotated record of the detailed examination of Mn deposits from DSDP Site 161, Leg 16 (Cores 16-161-1 and 16-161A-14)

DSDP 161 is located on the lower west flank of the East Pacific Rise about midway between the Clipperton and Clarion fracture zones which define the boundaries of a large structural block in the eastern Pacific. The site is about 4,000 km west of the present crest of the Rise. It is located near the northern edge of a zone of thick Cenozoic sediments which marks the general location of the equatorial zone of high biological productivity.

Description of manganese nodules and crust collected from the Hakurei Maru Cruise GH76-1, January-March, 1976, in the Central Pacific Basin

This report of the GH76-1 cruise mainly includes the results of the on-board observations in the survey area of the medial-eastern part of Central Pacific Basin (5 degree -10 degree N, 170 degree -175 degree W) and partly of analytical work at the on-shore laboratory. In addition, the results of some on-board optical and geophysical works along the tracks of Japan-Ogasawara-survey area-Hawaii, are described in appendices. The GH76-1 cruise of the R/V Hakurei-maru was carried out from the 10th January to the 9th March, 1976 as the second phase field work of the Geological Survey of Japan five-year research program of study on the manganese nodule deposits of the Central Pacific Basin and also as a part of the National Research Institute for Pollution and Resources research program of technological study on the exploitation of deep sea mineral resources. The GSJ research program (F.Y. 1974-F.Y. 1978) aims at providing basic information on the manganese nodule distribution and their origin on the deep sea floor of the Central Pacific Basin bounded by the Marshall Ridge to the west, the Christmas Ridge to the east, and the Mid-Pacific Mountains to the north. The first phase of investigation was carried out during the GH74-5 cruise in the eastern part of the area (6 degree -10 degree 30'W, 164 degree 30'-171 degree 30'N)(Mizuno and Chujo, eds., 1975), and the present second phase covered an areas of 5 degree square, just west of the GH74-5 area.

Annotated record of the detailed examination of Mn deposits from R/V Bosei Maru Cruise GH72-2 stations

In 1972, the five years program 'Basic investigations for exploration of deep sea mineral resources' was laid out by the Agency of Industrial Science and Technology, Ministry of International Trade and Industry. The Geological Survey of Japan and the National Research Institute of Pollution and Resources undertook the first survey project. The survey team consisted of four geologists and a surveyor of the Geological Survey of Japan, and a mechanical, engineer and four mining engineers of National Research Institute of Polution and Resources. The survey started on November 11 using the "Bosei Maru" survey vessel (1100 tons) chartered from Tokai University. The cruise departed from Shimizu harbor to the Ponape and Guam islands, and terminated at the harbor of departure on December 11. The surveyed area was mainly covered the Mariana basin and the Magellan seamounts, and fifteen bottom samples were collected during the cruise. Ferromanganese nodules were obtained at several stations at a depth over 5000m.