Results 101 to 110 of about 102,399 (167)

Growth rates and composition of Indian ocean ferromanganese nodules

, 1983
174-176Three ferromanganese nodules collected during 86 and 87 cruises of R V Gaveshani showed 10Be and 230Th based growth rates ranging from 1.5-4.2 mm (106y)/-1 and variations in their Mn, Fe, Cu, Ni and Co ...
Yajulu, B L K Soma, Sharma, P
core  

Ferromanganese micronodules from the surficial sediments of Georges Bank [PDF]

, 1984
Ferromanganese micronodules have been found on Georges Bank, off the U.S. northeast coast, distributed throughout the surficial sediments within an area about 125 km long and at least 12 km wide.
Manheim, F. T., Commeau, R. F., Commeau, J. A., Aruscavage, P. J., Poppe, L. J.   +4 more
core   +1 more source

In-situ analysis of polymetallic nodules from the clarion-Clipperton zone, Pacific Ocean: implication for controlling on chemical composition variability

Frontiers in Marine Science
Polymetallic ferromanganese nodules (PMNs) in the Clarion-Clipperton Zone (CCZ) exhibit significant spatial variability in chemical composition, which complicates exploration efforts and increases associated costs.
Jie Li, Yinjia Jin, Hao Wang, Kehong Yang, Zhimin Zhu, Xingwei Meng, Xiaohu Li   +6 more
doaj   +1 more source

Ferromanganese oxides from Mid-Indian Ridge, seamounts and abyssal plains from the Indian Ocean [PDF]

, 1989
11-15Mineralogical and chemical investigations show that todorokite is the only Mn mineral in the Mid-Indian Ridge ferromanganese, coatings, delta δ MnO2 in the seamount crusts, and well crystallised todorokite and minor amounts of delta δ MnO2 in the ...
Pattan, J N, Rao, P S
core  

Chemical composition of ferromanganese crusts recovered in the South China Sea during the SO49 Cruise of R/V Sonne

, 1993
Five ferromanganese crusts and 6 ferromanganese nodules samples collected by the Joint Chinese-West Germany Geophysical Investigation Team in May—June, 1987 during the SO49 cruise of the R/V Sonne. They were analyzed for their rare earth element contents
Q Li (6964538), G Bao (6964535), Bao, G, Li, Q   +3 more
core   +1 more source

Description and iron and manganese content of ferromanganese nodules from Oneida Lake, NY

, 1981
Ferromanganese nodules in the deep-sea and in freshwater lakes usually accrete layers rich in manganese oxides alternating with layers rich in iron oxides.
Willard S Moore (6958457), Moore, Willard S   +1 more
core   +1 more source

Natural water purification and ferromanganese sandstone formation in the coastal zone of Lake Baikal

Discover Geoscience
This study addresses the geochemical mechanisms of authigenic ferromanganese (Fe–Mn) ore formation within modern aeolian sands of the Lake Baikal coastal zone, driven by subaerial groundwater discharge. Despite the extensive knowledge of subaqueous Fe–Mn
Nikolay I. Akulov, Varvara V. Akulova, Olga Yu. Belozerova, Victor M. Chubarov, Maria N. Rubtsova, Svetlana I. Shtelmakh   +5 more
doaj   +1 more source

DIRECT CATALYTIC REDUCTION OF SO2BY SYNTHESIS GASOVER GRANULATED AND MONOLITHIC Fe-Mn CATALYSTS

Вестник Кемеровского государственного университета, 2015
Preparation methods of granulated and monolithic Fe-Mn catalysts on the base of ferromanganese nodules were developed. The textural, structural and strength properties of catalysts were studied.
N. V. Shikina, S. R. Khairulin, S. A. Yashnik, A. A. Gavrilovа, Z. R. Ismagilov   +4 more
doaj  

Draft Genome Sequence of Thermophilic Exiguobacterium sp. Strain JLM-2, Isolated from Deep-Sea Ferromanganese Nodules. [PDF]

Genome Announc, 2015
Zhang DC, Liu YX, Huo YY, Xu XW, Li XZ.
europepmc   +1 more source

Palaeogene Ichthyoliths from the substrates of ferromanganese encrustations and nuclei of manganese nodules from the central Indian Ocean basin.

Journal of the Palaeontological Society of India, 1987
Shyam M. Gupta
doaj   +1 more source