Results 61 to 70 of about 1,157 (196)

Jurassic Fe-Mn macro-oncoids from pelagic swells of the External Subbetic (Spain) : evidences of microbial origin [PDF]

, 2010
Ferromanganesiferous macro-oncoids are distinctive from the External Subbetic Zone (Betic Cordillera, SE Spain) in relation to a major heterochronic unconformity, with a Middle Bathonian-Lower Oxfordian minimum hiatos and a Lowest Bathonian-Lowest ...
Nieto Albert, Luis Miguel, Reolid Pérez, Matías   +1 more
core   +4 more sources

Radiogenic isotopes: Tracers of past ocean circulation and erosional input [PDF]

, 2002
The radiogenic isotope composition of dissolved trace metals in the ocean represents a set of relatively new and not yet fully exploited tracers with a large potential for oceanographic and paleoceanographic research on timescales from the present back ...
Abouchami, Abouchami, Abouchami, Abouchami,, Albarède, Albarède, Albaréde, Alleman, Amakawa, Amakawa, Andersson, Aplin, Archer, Asmus, Banakar, Banakar, Barker, Barrett, Bayon, Belshaw, Belshaw, Ben Othman, Berger, Bertram, Bollhöfer, Bout-Roumazeilles, Boyle, Boyle, Boyle, Broecker, Broecker, Broecker, Bruland, Burton, Burton, Burton, Burton, Charles, Charles, Chen, Chow, Christensen, Claude-Ivanaj, Cochran, Curry, Curry, David, Derry, Dia, Duce, Duque-Caro, Döös, Edmond, Eisenhauer, Elderfield, Elderfield, Elderfield, Elderfield, Erel, Fagel, France-Lanord, Frank, Frank, Frank, Frank, Futa, Galer, Ganachaud, German, Godfrey, Godfrey, Goldstein, Goldstein, Goldstein, Goldstein, Gordon, Greaves, Grousset, Halbach, Halliday, Haq, Harada, Haug, Hemming, Henderson, Henderson, Hodell, Igel, Ingri, Innocent, Ito, Jeandel, Jeandel, Jeandel, Jones, Jones, Joshima, Kadko, Kaiho, Keigwin, Kennett, Koschinsky, Krishnaswami, Ku, Ku, Kusakabe, Lacan, Lao, Lear, Lee, Levasseur, Levasseur, Levitus, Ling, Macdonald, Manheim, Manheim, Marchal, Marshall, Martin, Martin Frank, McKelvey, McMurtry, Measures, Miller, Morton, Nowell, Nozaki, O'Nions, O'Nions, Oxburgh, Oxburgh, Palmer, Palmer, Palmer, Paytan, Paytan, Pegram, Pegram, Pettke, Peucker-Ehrenbrink, Peucker-Ehrenbrink, Piepgras, Piepgras, Piepgras, Piepgras, Piepgras, Piepgras, Piotrowski, Pomies, Puteanus, Ravelo, Ravizza, Ravizza, Ravizza, Raymo, Raymo, Raymo, Rea, Rehkämper, Revel, Reynolds, Richter, Rutberg, Sarnthein, Schaule, Schlosser, Schmitz, Schärer, Searle, Segl, Segl, Sharma, Sharma, Sharma, Sharma, Shaw, Shen, Shimizu, Sholkovitz, Spero, Spivack, Stanley, Staudigel, Stille, Stille, Stille, Stordal, Suter, Tachikawa, Tachikawa, Turner, van de Flierdt, Vance, Veizer, Vennemann, Vervoort, Vidal, Vlastélic, von Blanckenburg, von Blanckenburg, von Blanckenburg, von Blanckenburg, von Blanckenburg, von Blanckenburg, Weissel, White, Winter, Woodhouse, Woodruff, Xu, Yu, Zachos, Öhlander   +213 more
core   +1 more source

Open‐Source Marine Biodiversity Data Quality in the Norwegian Sea Spanning 149 Years: Knowledge Gaps in the Deep‐Sea Mining Opening Area

Ecology and Evolution, Volume 15, Issue 8, August 2025.
To identify spatial–temporal patterns of marine species biodiversity and to provide specific information in Norway for Environmental Impact Assessments and Statements, we present biodiversity patterns for marine occurrences from 1876 to 2025 (149 years).
Laura C. Paiba‐García, Geir Johnsen, Sam Wenaas Perrin, Torkild Bakken   +3 more
wiley   +1 more source

Competitive Scavenging of Trace Metals by HFO and HMO during Redox-driven Early Diagenesis of Ferromanganese Nodules (11 pp) [PDF]

, 2018
-: Dedicated to Prof. Dr. Ulrich Förstner on his 65th birthday Background: Surface complexation models (SCM) alone have yet less successfully reproduced sorption isotherms of hydrous manganese oxides (HMO).
Kersten, Michael, Kulik, Dmitrii
core  

Long term records of erosional change from marine ferromanganese crusts [PDF]

, 2000
Ferromanganese crusts from the Atlantic, Indian and Pacific Oceans record the Nd and Pb isotope compositions of the water masses from which they form as hydrogenous precipitates.
A Bollhöfer, A Eisenhauer, A G Kaneps, A Michard, B K Schaule, B Winter, C Jeandel, C N Wold, D A Hodell, D J DePaolo, D J Piepgras, D J Piepgras, D J Piepgras, D J Piepgras, D Puteanus, E Meier-Reimer, F Albarède, F Albarède, F Blanckenburg von, F Blanckenburg von, F Chabaux, F Chabaux, F T Manheim, F Woodruff, G H Haug, G Keller, G M McMurtry, H Duque-Caro, H-F Ling, J Hess, J N Christensen, K Billups, K W Burton, L A Derry, L G Marshall, M C Stordal, M E Raymo, M E Raymo, M L Delaney, M Segl, M. Frank, Martin Frank, N J Shackleton, N S Belshaw, N W Driscoll, P F Barker, P Halbach, R B Koepnick, R K O’Nions, R. Keith O’Nions, S L Goldstein, S Levitus, U Neff, V K Banakar, W Abouchami, W Abouchami   +55 more
core   +1 more source

The Formation of Ferromanganese Crusts From the Western Mariana Ridge and Implications for Deep‐Water Environment Since the Late Pliocene

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract Pacific Deep Water (PDW) plays a crucial role in the dynamics of the global thermohaline circulation. Understanding the evolution of the PDW is significant to reveal the global carbon cycle and its climatic responses. We present a comprehensive study of ferromanganese crusts from the Western Mariana Ridge (WMR), which includes mineralogical ...
Linzhang Wang, Zhigang Zeng
wiley   +1 more source

A simulation model for the world manganese market [PDF]

, 2009
Proposals concerning the future regime to govern deepsea mining put forward at the United Nations Conference on the Law of the Sea reflect a lack of empirically based criteria, particularly with reference to the impact of seabed mining on the metal ...
Foders, Federico, Kim, Chÿæong-su
core   +1 more source

Giant protists (xenophyophores, Foraminifera) are exceptionally diverse in parts of the abyssal eastern Pacific licensed for polymetallic nodule exploration [PDF]

, 2017
Xenophyophores, giant, fragile, agglutinated foraminifera (protists), are major constituents of the abyssal megafauna in the equatorial Pacific Clarion-Clipperton Zone (CCZ), a region where seabed mining of polymetallic nodules may occur in the future ...
Caulle, Clémence, Goineau, Aurélie, Gooday, Andrew J., Holzmann, Maria, Kamenskaya, Olga, Pawlowski, Jan, Weber, Alexandra A.-T.   +6 more
core   +1 more source

Mechanisms for Growth of Marine Ferromanganese Nodules.

Oceanography in Japan, 1996
Megascopically, nodules are composed of nuclei and concentric shell layers. The hard surface of nuclei is necessary for the start of nodule formation. The concentric shell layers are formed by cyclic embedding of nodules in the sediment. During their embedding, 10 A manganates are precipitated diagenetically from interstitial water, which are rich in ...
openaire   +2 more sources

Assessment of Seawater Nd Isotope Signatures Extracted From Foraminiferal Shells and Authigenic Phases From Volcanogenic Sediments of the Adriatic Sea

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 4, April 2025.
Abstract The neodymium isotope signatures (εNd) of the authigenic fraction have been extensively used to reconstruct past seawater εNd and hydrological circulation. Among the various methods, sequential extraction of hydrogenic ferromanganese oxyhydroxides from bulk sediments represents a rapid and straightforward approach that may potentially induce ...
Guohui Gao, Christophe Colin, Giuseppe Siani, Sophie Sepulcre, Rosella Pinna‐Jamme, Frederic Haurine, Arnaud Dapoigny   +6 more
wiley   +1 more source