Results 11 to 20 of about 1,157 (196)

Discovery of Dense Ferromanganese Nodules in the Central Basin of the South China Sea: Insights Into Metallogenesis Processes and Resource Potential

Geophysical Research Letters
Ferromanganese deposits in the South China Sea (SCS) hold significant strategic metal resources, yet their distribution remains poorly understood. To address this gap, we conducted an integrated study across 6,600 km2 in the central basin of the SCS ...
Jiangbo Ren, Yong Yang, Lixue Zhang, Limin Zhang, Yinan Deng, Yingzhi Ren, Shuang Hong, Jinfeng Ma, Xianze Deng, Miao Yu, Zhen Sun, Gaowen He   +11 more
doaj   +2 more sources

A New Method for Calculating Growth Rates of Ferromanganese Nodules From Marginal Seas: Implications for Terrigenous Input in the South China Sea

Geophysical Research Letters
Accurate age determination of marine ferromanganese (Fe‐Mn) nodules is crucial for interpreting their geochemical compositions as paleoceanographic tracers and for understanding critical metal (e.g., Co, Ni) enrichment. Previous empirical dating methods,
Zimeng Xue, Shihua Zhong, Zhiqing Lai, Sanzhong Li, Jing Li, Jun Sun   +5 more
doaj   +2 more sources

Forms and distribution of Ce in a ferromanganese nodule

Marine Chemistry, 2018
Author(s): Marcus, MA; Toner, BM; Takahashi, Y | Abstract: We studied the distribution and speciation of Ce in a previously-characterized ferromanganese nodule from the South Pacific Gyre using X-ray microspectroscopy.We find Ce in three types of environment – diffusely in all parts of the nodule except the Fe-rich, Mn-poor “matrix”, fluorapatite ...
Matthew A Marcus, Brandy M Toner, Yoshio Takahashi   +2 more
exaly   +5 more sources

Reply to Boudreau: Morphologic expression of ferromanganese nodules [PDF]

Proc Natl Acad Sci U S A, 2008
The statement that nodule formation, especially morphology, can be predicted by the Boudreau diagenetic model led us to state that “diagenetic models that claim to predict nodule growth rate and morphologies from elemental concentrations (1) are not verified by our data” for Second Connecticut Lake (SCL), New Hampshire (2).
Asikainen C.
europepmc   +3 more sources

Improvements in Cd stable isotope analysis achieved through use of liquid-liquid extraction to remove organic residues from Cd separates obtained by extraction chromatography. [PDF]

J Anal At Spectrom, 2016
Organic compounds released from resins that are commonly employed for trace element separations are known to have a detrimental impact on the quality of isotopic analyses by MC-ICP-MS.
Murphy K, Rehkämper M, Kreissig K, Coles B, van de Flierdt T.   +4 more
europepmc   +2 more sources

Review and Integrated Framework for Deep-Sea Mineral Resources, Ecological Influence, and Future Development. [PDF]

Int J Microbiol
As global industrialization advances and land‐based resources decline, deep‐sea resource development is becoming increasingly vital. The deep sea is rich in minerals such as polymetallic nodules, polymetallic sulfides, and cobalt‐rich crust. However, deep‐sea ecosystems and geochemical cycles can be severely impacted by extensive mineral mining.
Liu J, Wang C, Etim IN, Zhang R, Sand W, Wang X, Yang L, Ge Y, Liu J.   +8 more
europepmc   +2 more sources

The Geochemical Features and Genesis of Ferromanganese Deposits from Caiwei Guyot, Northwestern Pacific Ocean

Journal of Marine Science and Engineering, 2022
The ferromanganese deposit is a type of marine mineral resource rich in Mn, Fe, Co, Ni, and Cu. Its growth process is generally multi-stage, and the guyot environment and seawater geochemical characteristics have a great impact on the growth process ...
Linzhang Wang, Zhigang Zeng
doaj   +1 more source

The Engineering and geological substantiation of the resource potential of the bed of the South China

Горные науки и технологии, 2023
The program for the development of the national economy based on own mineral raw materials as adopted in the Socialist Republic of Vietnam requires an increase the volumes of minerals.
Yu. V. Kirichenko, Tran Thien Quy Ngo, M. V. Shchyokina   +2 more
doaj   +1 more source

The Tubotomaculum Enigma and the Rise of Benthic Life During the Opening of the Western Mediterranean Basin. [PDF]

Geobiology
ABSTRACT Large‐scale geological processes shape microbial habitats and drive the evolution of life on Earth. During the Oligocene, convergence between Africa and Europe led to the opening of the Western Mediterranean Basin, a deep‐ocean system characterized by fluid venting, oxygen depletion, and the absence of benthic fauna.
Bernardini S, Abbassi A, Cipollari P, Ventura GD, Saiz-Jimenez C, Mugnaioli E, Jovane L, Sodo A, Bellatreccia F, Zaghloul MN, Cosentino D.   +10 more
europepmc   +2 more sources

Microbial Communities of Ferromanganese Sedimentary Layers and Nodules of Lake Baikal (Bolshoy Ushkany Island)

Diversity, 2022
Ferromanganese (Fe-Mn) sedimentary layers and nodules occur at different depths within sediments at deep basins and ridges of Lake Baikal. We studied Fe-Mn nodules and host sediments recovered at the slope of Bolshoy Ushkany Island.
Tamara Zemskaya, Natalia Konstantinova, Olga Shubenkova, Tatyana Pogodaeva, Vyacheslav Ivanov, Sergei Bukin, Andrey Khabuev, Oleg Khlystov, Grigory Vilkin, Anna Lomakina   +9 more
doaj   +1 more source