Results 91 to 100 of about 102,399 (167)

Environmental Geochemical Behavior of Soil Ferromanganese Nodules: A Review

Yankuang ceshi
Ferromanganese nodules (FMNs), secondary products of pedogenic processes, are extensively distributed in karst regions characterized by high geochemical backgrounds and are central to explaining the apparent paradox of high total concentrations but low ...
Mingxin LIU, Jianxun QIN, Kun LIN, Qifeng TANG, Qingye HOU, Zhongfang YANG, Tao YU   +6 more
doaj   +1 more source

Spatial variability of Arsenic Concentrations in Baltic Sea surface sediments in relation to Sea Dumped Chemical Munitions

E3S Web of Conferences, 2013
Arsenic concentration in marine areas are higher than in terrestrial environment, because most of its compounds are water soluble, and water bodies serve as a sink for this element.
Bełdowski J., Szubska M., Emelyanov E.
doaj   +1 more source

Geochemical characteristics of Antarctic deep-sea ferromanganese nodules from highly oxic deep-sea water [PDF]

Six samples of ferromanganese nodules taken from a knoll and a seamount off Wilkes Land, Antarctica, have been analyzed by ICP-AES and their geochemical characteristics have been compared with those of Pacific nodules. The Antarctic nodules have slightly
Okuda, Yoshihisa, Kawabe, Iwao, Ohta, Atsuyuki, Naito, Koh   +3 more
core   +2 more sources

High-Resolution Study of the Magnetic Properties in Marine Sediments Based on Diamond NV Center Magnetometry

Applied Sciences
Magnetostratigraphic dating has been widely employed for the study of marine sediments, including ferromanganese nodules (MFNs) and ferromanganese crusts (MFCs), using high-resolution rock magnetic microscopy (RMM) techniques.
Yu-An Du, Huafeng Qin, Shuangchi Liu, Yongxin Pan   +3 more
doaj   +1 more source

Growth of diagenetic ferromanganese nodules in an oxic deep-sea sedimentary environment, northeast equatorial Pacific

, 1999
To study the accretion mechanism of diagenetic ferromanganese nodules formed in an oxic deep-sea sedimentary environment, manganese nodules, sediments, and pore waters were sampled in the northeast equatorial Pacific.
Hoi-Soo Jung, Chang-Bok Lee, Jung, HS, Lee, CB   +3 more
core   +1 more source

Beyond the plains: deep-sea mining of polymetallic nodules on and around seamounts

Frontiers in Marine Science
Deep-sea mining management, scientific research, and public discourse have largely focused on polymetallic nodule extraction from abyssal plains. However, there is growing commercial interest in nodules on and around seamounts, with exploration and ...
Cherisse Du Preez, Cherisse Du Preez, Heidi Gartner, Sheryl Murdock, Verena Tunnicliffe   +4 more
doaj   +1 more source

Chemical composition of phosphate-ferromanganese crusts and nodules from Malm to the Lower Eocene North Tethys formations of the Briançon area in the French Alps

, 1980
Chemical composition of phosphate-ferromanganese crusts and nodules from Malm to the Lower Eocene North Tethys formations of the Briançon area in the French ...
Maurice Bourbon (6962486), Bourbon, Maurice   +1 more
core   +1 more source

Corrigendum to “Geochemistry of ferromanganese nodules in the soil of Okinawa Island, Japan: Paleoclimatic implications and discrimination scheme of the nodule origins” [J. Asian Earth Sci.: X 8 (2022) 100127]

Journal of Asian Earth Sciences: X, 2023
Keishiro Azami, Kazutaka Yasukawa, Yasuhiro Kato   +2 more
doaj   +1 more source

Atypical ferromanganese nodules from pelagic areas of the Central Indian Basin, equatorial Indian Ocean

, 1990
Two box core samples, one each from red clay and siliceous ooze sediment provinces from the Central Indian Basin (Indian Ocean) were studied. Both cores contained ferromanganese nodules at their tops.
Dasgupta, Somnath, Mukhopadhyay, Subir, Roy, Supriya, Fukuoka, Masato, Supriya Roy, Masato Fukuoka, Subir Mukhopadhyay, Somnath Dasgupta   +7 more
core   +1 more source

Geochemistry on ferromanganese crusts and nodules from Green Bay, Lake Michigan

, 1973
The differential solubility of ferromanganese oxides can lead to stratigraphic separation of iron and manganese. Results of chemical analysis of a sequence of ferromanganese nodules overlying iron-rich crusts in northern Green Bay show that selec¬tive ...
Callender, Edward
core   +1 more source