Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS 98-3 cruise, west Pacific
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USGS , [Reston, Va.?]
Cobalt ores -- Marshall Islands Region, Cobalt ores -- Micronesia (Federated States) -- Yap Region, Ferromanganese, Manganese ores -- Marshall Islands Region, Manganese ores -- Micronesia (Federated States) -- Yap Region, Iron ores -- Marshall Islands Region, Iron ores -- Micronesia (Federated States) -- Yap R
|Statement||by James R. Hein ... [et al.].|
|Series||Open-file report -- 99-412., U.S. Geological Survey open-file report -- 99-412.|
|Contributions||Hein, James R., Geological Survey (U.S.)|
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Get this from a library. Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS cruise, west Pacific. [James R Hein; Geological Survey (U.S.),].
Get this from a library. Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS cruise, west Pacific.
[James R Hein; Geological Survey (U.S.);]. Lomilik is a seamount in the Western Pacific Ocean, within the exclusive economic zone of the Marshall Islands. It lies to the west of Anewetak atoll and is named after the best fishing site of Anewetak atoll.
Lomilik has a bykilometre-wide ( mi × mi) summit terrace with the proper summit at circa 1, metres (4, ft) depth; a scarp separates the two and small hills reach Coordinates: 11°42′N °37′E / °N. Fe–Mn crust photographs: (a) cross section of a Fe–Mn crust showing growth layers and substrate basalt, from Gorda Ridge, NE Pacific, 1, m water depth.
(b) Fe–Mn crust collected from a seamount in the Marshall Islands EEZ, NW Pacific, water depth 1, m; long dimension is about 1 m.
Details Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS 98-3 cruise, west Pacific FB2
oxyhydroxide crusts (Fe-Mn crusts) from most dredges were collected for this study, which extends our previous work on Fe-Mn crusts collected from the Marshall Islands and Federated States of Micronesia to seamounts located farther north (Hein, Kang et al., ; Hein, Ann et al., ).Cited by: 3.
Textural and geochemical properties of ferromanganese crust (Fe−Mn crust) samples from four adjacent seamounts near the Marshall Islands were investigated to delineate the paleoceanographic condition on their growth history.
The Fe−Mn crust samples of this study show four distinct layers (layers 1 to 4 from top to bottom). The uppermost layer 1 is massive and black, and is enriched in. Composition of Co-rich ferromanganese crusts and substrate rocks from the Marshall Islands, cruise Co-rich Fe-Mn crusts from the Marshall Islands book Composition of Co-rich ferromanganese crusts and substrate rocks from the NW Marshall Islands and intern Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits.
SAMPLES AND ANALYTICAL TECHNIQUE The Fe-Mn crust selected for this study is a Fe-Mn crust (DI) from the Lotab seamount in the Marshall Islands ('N- 'E). Fe-Mn crusts from the Marshall Islands are hydroge- nous and have been studied extensively in terms of both mineral and chemical compositions (Hein et al., ).
C: Mean concentrations of 61 bulk crusts from the Marshall Islands Hein et al. Ju-chin Chen and Yung-chang Yao C - - - - - Fe Fig. Fe-Mn-(Co + Ni + Cu) x 10 variations for manganese nodules near the Mariana Islands (dots) and Johnston Island (solid triangles).
This book contains information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Representative ferromanganese oxyhydroxide crusts (Fe- Mn crusts) and substrate rocks from the dredge hauls taken on those three edifices were analyzed for this study, which extends our previous work on Fe-Mn crusts collected in and around the Marshall Islands (Hein et al., ; Hein, Kang, et al., ; Hein, Ahn, et al.
 Fe‐Mn crust samples were collected from four seamounts west of the Marshall Islands in the western Pacific and aligned parallel to Pacific Plate movement. These were studied for their texture and chemical composition to understand if the ITCZ and changes in its location influence the growth of Fe‐Mn crusts.
The Fe‐Mn crusts show average thicknesses of 7–8 mm (maximum 15 mm) and high contents of Co, which indicate slow growth rates (∼ mm Ma −1 for the Fe‐Mn crust in Table 2). The age of the Fe‐Mn crusts is estimated to be younger than about Ma based on the thickest crust and using the empirical equation of Manheim and Lane.
Hein, J.R., Moon, J.-W., and others, Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS cruise, West Pacific: USGS Open-File Report.
Scale bars are 2 cm.
Description Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS 98-3 cruise, west Pacific EPUB
(b) Photomicrographs showing distinct textural variation of the four sublayers in a Fe-Mn crust from OSM2 (D, [after Yoo et al., ]). Layer 1 shows columnar growth of.
Fe-Mn crust Formation of Fe-Mn crusts Source: Modiﬁed from Hein et al a b c. the Marshall Islands, the northern part of the Federated States of Glasby, G.
P., Ren, X., Shi, X., and Pulyaeva, I. Co-rich Mn crusts from the Magellan Seamount cluster: the long journey through time. 플라이오세 이후에 형성된 층 1은 치밀한 조직을 보이며, 형성 이후 속성작용을 받지 않았다. Six ferromanganese crusts from the Lomilik and Litatfooki seamounts in the Marshall Islands were analyzed for texture, geochemistry and stratigraphy to delineate the paleoceanographic conditions.
Four pure hydrogenetic, mixed hydrogenetic-diagenetic and hydrogenetic-hydrothermal Fe-Mn Crusts from the Canary Islands Seamount Province have been studied by Micro X-Ray Diffraction, Raman and Fourier-transform infrared spectroscopy together with high resolution Electron Probe Micro Analyzer and Laser Ablation Inductively Coupled Plasma Mass Spectrometry in order to find the correlation of.
Large crust recovered near Marshall Islands. Shallow drilling Cores of crusts. Underwater photos of crusts 25 Value of Metals in 1 Metric Ton of Fe-Mn Crust from the Central-Equatorial Pacific Mean Price of Metal ( $/kg) Mean Content •Ferromanganese Co-rich crusts is globally distributed and.
Jonguk Kim, Kiseong Hyeong, Chan Min Yoo, Jai-Woon Moon, Ki-Hyune Kim, Young-Tak Ko and Insung Lee, Textural and geochemical characteristics of Fe−Mn crusts from four seamounts near the Marshall Islands, western Pacific, Geosciences Journal, 9, 4, (), ().
The following four papers use the isotopic compositions of Fe-Mn crusts to reconstruct Cenozoic seawater chemistry, which can be used to delineate the evolution of deep-water circulation. Deep-water circulation is one of the main controls of global climate, and the data generated from these papers can be used in predictive models for global.
Formation of Fe-Mn crusts within a continental margin environment. This study examines Fe-Mn crusts that form on seamounts along the California continental-margin (CCM), within the United States nautical mile exclusive economic zone.
The study area extends from approximately 30° to 38° North latitudes and from ° to ° West longitudes. A number of flat-topped seamounts rise from the floor of the western Pacific Ocean to depths of 1,–2, metres (3,–6, ft) below sea level.
They are called guyots and are clustered in an elongated region with and between the Marshall Islands and the is presumed that hotspots generated most of these seamounts. The Marshall Islands are grouped in two chains and three. Distribution of platinum group elements (Ru, Pd, Pt, and Ir) and gold in hydrogenous ferromanganese deposits from the southern part of the Atlantic Ocean has been studied.
The presented samples were the surface and buried Fe–Mn hydrogenous nodules, biomorphous nodules containing predatory fish teeth in their nuclei, and crusts. Platinum content varied from 47 to ng/g, Ru from 5 to 26 ng.
Books Advanced Search New Releases Best Sellers & More Children's Books Textbooks Textbook Rentals Best Books of the Month of 56 results for Books: History: Australia & Oceania: Marshall Islands.
Marshall Islands, officially Republic of the Marshall Islands, Marshallese Majōl, country in the central Pacific Ocean. It consists of some of the easternmost islands of Micronesia.
The Marshalls are composed of more than 1, island s and islets in two parallel chains of coral atoll s—the Ratak, or Sunrise, to the east and the Ralik, or. It is well known that hydrogenetic ferromanganese crusts have traditionally been called cobalt (Co)-rich crusts.
They often cover the surface of seamounts in the form of ex-tended sheets and strongly accumulate many metals of eco-nomic interest, including Co, relative to the Earth’s crust (e.g., Halbach et al., ; Hein et al., ). (shelved 11 times as marshall-islands) avg rating — ratings — published Purchase Au, U, Fe, Mn, Hg, Sb, W, and P Deposits, Volume 7 - 1st Edition.
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Receive FREE shipping with your Barnes & Noble Membership. Our Stores Are Open Book Annex Membership Educators Gift Cards Stores & Events Help Auto Suggestions are available once you type at least 3 letters.We are now on Kwajalein, our last atoll visited in the Marshall Islands.
Some islands in the atoll are off-limits as they are still used by the US military for missile testing & tracking. We got to spend some time cruising here with a long time cruiser friend who has worked here for 7 years already.
We will soon dive on some WWII wrecks here too.Influence of substrate rocks on Fe-Mn crust composition. Deep Sea Res Part I Oceanogr Res Pap, 46(5): – doi: /S(98) Hein J R, Schulz M S, Gein L M (b). Central Pacific cobalt-rich ferromanganese crusts: historical perspective and regional variability.
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