Recent studies on marine ferromanganese nodules have suggested a relationship between their growth rate and their chemical composition. The suggestion is based on the hypothesis...

The deposits studied by the author are crusts and coatings of manganese oxide (mixed psilomelane, wad and limonite) on a consolidated marl. They were recovered from the lake...

A gravelly sand deposit at 103 m depth on the summit region of Mount Palinuro, a seamount approximately 100 km off the Italian west coast, is made up of a mixture of manganese...

The extent of racemization of isoleucine and aspartic acid has been measured on cetacean ear bones from the center of 8 manganese nodules in order to estimate the ages of the...

The accretion rate of manganese nodules and the sedimentation rate of the underlying sediment has been studied with 10Be and 14C on a nodule covered hill in the Madeira Abyssal...

Iron-rich sediments similar to those forming on other active mid-oceanic ridges have been found in the Median Valley of the Mid-Atlantic Ridge near 45 °N. The sediments are...

The continental slope and rise, east of Newfoundland, accommodates two distinct gravel populations. The upper slope (300-700 m depth) population is characterized by unstained,...

The southernmost part of the Sohm Abyssal Plain in the Northwest Atlantic Basin is geographically distal with respect to the major source of Quaternary terrigenous material...

Measurements of Pb-210 activities, in conjunction with micropaleontological, geotechnical and sedimentological observations, on sediment cores have been used to characterize two...

The unusual petrological diversity of abyssal lavas erupted along some segments of the Galapagos spreading center is a direct consequence of the propagation (elongation) of...

Manganese oxide crusts similar to those reported from the Mid-Atlantic Ridge rift valley by Scott et al., 1974 (https://doi.pangaea.de/10.1594/PANGAEA.848726) were dredged at...

The bulk chemical compositions of ferromanganese nodules recovered from 14 of 38 sediment cores collected from a 230 km2 area of abyssal hill topography in the northern...

Pelagic sediment recovered at DOMES Site A in the equatorial North Pacific (151°W, 9° 15'N) consists of a surface homogeneous layer, approximately 10 cm thick, overlying a...

Relationships among Th and Ra isotopes in nodule, sediment and water phases at MANOP Site S establish the most likely source for Th in the nodules, the frequency of nodule...

Pyrite concretions a few centimeters in diameter were recovered from within the east-west valley of the Romanche fracture zone (equatorial Atlantic). Unconsolidated sediments...

The distribution of several metals in East Pacific Rise sediments, when normalized to Al2O3, exhibit stronger maxima near the rise crest than when simply plotted on a...

We report here that a manganese nodule from the Central Pacific manganese nodule province has been dated by fossil diatoms found in mud scraped from near the nodule's centre....

Erosion of sediment at two sites within the siliceous-clay province of the northeast equatorial Pacific is investigated by examining radionuclide, radiolarian and percent...

The chemical and mineralogical composition of burrowed sediment, recovered in 66 box cores at latitude 9°25'N and longitude 151°15'W in the equatorial Pacific, demonstrates the...

The major and minor element composition of ferromanganese nodules from DOMES Site A has been determined by X-ray fluorescence methods. Three phases appear to control the bulk...