Results 31 to 40 of about 58,716 (144)

Elemental composition of ferromanganese crusts from the Hawaiian Archipelago

, 2022
The paper presents the results of studies of ferromanganese deposits in the Hawaiian Archipelago. The chemical composition of ferromanganese oxide crusts and their associated substrates was determined by two methods.
Craig, James D, Andrews, John E, Meylan, Maurice A   +2 more
core   +1 more source

Vanadium isotope and elemental concentration analyses of numerous ferromanganese crusts and nodule samples

, 2020
Dataset: Oxic sediment V isotope signatureThis vanadium isotope and elemental concentration dataset analyzes numerous ferromanganese crusts and nodule samples.
Owens, Jeremy D., Nielsen, Sune G.
core   +1 more source

(Table 1) Composition of oceanic and marine ferromanganese nodules

, 1997
(Table 1) Composition of oceanic and marine ferromanganese ...
Gleb N Baturin (6959618), Baturin, Gleb N, Georgy V Novikov (6965420), Novikov, Georgy V   +3 more
core   +1 more source

Chemical composition of selected manganese nodule and ferromanganese crust structure zones and morphology types (Expedition NZOI-Tangaroa_22 and MANGANESE 76, R/V Tangaroa)

, 2022
If nodules were chemically homogeneous objects, their bulk compositions would paint a complete picture. But they are not, as can be assumed simply from visual recognition of their diverse structural elements.
Meylan, Maurice A
core   +1 more source

Pacific, Indian and Atlantic ocean manganese nodules and crusts analyzed at Scripps Institution of Oceanography in 1978

, 2022
The Marine Minerals Database contains geochemical analyses and auxiliary information on present-day marine deposits of primarily ferromanganese nodules and crusts. Some data for heavy minerals are also included. Sources of ferromanganese analyses include
Frazer, Jane Z, Fisk, Mary B
core   +1 more source

Brine Pool Microbes Enrich Metalliferous Sediments in Salt Giant Basins

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract We report the discovery of an extinct deep‐sea brine pool in the Red Sea's Hume Deep, providing evidence that rift‐shoulder pools are ephemeral on millennial timescales, and that the microbially‐enriched metalliferous deposits produced during the pool's active phase persist into the stratigraphic record.
Morgan I. Chakraborty, Hannah Shernisky, Clément G. L. Pollier, Amanda M. Oehlert, Arash Sharifi, Ali Pourmand, Bolton J. Howes, Benjamin Minch, Mohammad Moniruzzaman, Larissa Frühe, Mattie Rodrigue, Sam J. Purkis   +11 more
wiley   +1 more source

High spatial resolution analysis of ferromanganese concretions by LA-ICP-MS†

Geochemical Transactions, 2002
A procedure was developed for the determination of element distributions in cross-sections of ferromanganese concretions using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS).
Ingri Johan, Baxter Douglas C, Rodushkin Ilia, Axelsson Mikael D, Öhlander Björn   +4 more
doaj   +1 more source

Hydrothermal Manganese‐Oxide Mineralization of a Carbonate Ooze, Samoan Hotspot Region, South Pacific Ocean

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Low‐temperature hydrothermal manganese oxides occur throughout the global oceans. However, the hydrothermal replacement of a carbonate ooze by manganese oxides is described here for the first time. The 24 samples dredged from three locations around the Territory of American Samoa in the South Pacific Ocean include six samples with remnant ...
James R. Hein, Amy Gartman, Kira Mizell, Mark Baskaran, Anthony Koppers, Hubert Staudigel   +5 more
wiley   +1 more source

(Table 2) Mineral composition of samples from the surface layer (<2 mm) of a ferromanganese nodule from Station DM41-3911-76

, 2006
(Table 2) Mineral composition of samples from the surface layer (
Uspenskaya, Tatyana Y, Dubinin, Alexander V, Alexander V Dubinin (6966845), Tatyana Y Uspenskaya (6964079)   +3 more
core   +1 more source

Tracing the Persistence and Role of Deep‐Sea Iron Sources in the Pacific Ocean Over the Last 23 Million Years

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Iron (Fe) plays a critical role in marine productivity and the global carbon cycle. The relative contribution of different Fe sources such as atmospheric aerosols, sediment dissolution, and submarine hydrothermalism influences the distribution and biogeochemical cycling of Fe in the ocean. However, distinguishing these Fe sources over time has
Yongzhi Chu, Xiaohu Li, Ruifang C. Xie, Tim M. Conway, Antao Xu, Yanhui Dong   +5 more
wiley   +1 more source