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Wednesday, August 5, 2020 | History

3 edition of Trace metal geochemistry of sediments, northeast Pacific Ocean found in the catalog.

Trace metal geochemistry of sediments, northeast Pacific Ocean

B. D. Bornhold

Trace metal geochemistry of sediments, northeast Pacific Ocean

by B. D. Bornhold

  • 177 Want to read
  • 35 Currently reading

Published by Geological Survey of Canada, available by mail from Canadian Govt. Pub. Centre Supply and Services Canada in Ottawa, Hull, Quebec .
Written in English

    Places:
  • North Pacific Ocean.
    • Subjects:
    • Marine sediments -- North Pacific Ocean.,
    • Geochemistry -- North Pacific Ocean.,
    • Trace elements -- Analysis.

    • Edition Notes

      StatementB.D. Bornhold, D.L. Tiffin, R.G. Currie.
      SeriesPaper / Geological Survey of Canada ;, 80-25, Paper (Geological Survey of Canada) ;, 80-25.
      ContributionsTiffin, D. L., Currie, R. G.
      Classifications
      LC ClassificationsQE185 .A42 no. 80-25, GC398 .A42 no. 80-25
      The Physical Object
      Pagination21 p. :
      Number of Pages21
      ID Numbers
      Open LibraryOL3517059M
      ISBN 100660108054
      LC Control Number82100254

      The geochemistry of manganese in the northeast Pacific Ocean off Washington ’ v2. By Carolyn J. Jonest and James W. Murray. Abstract. Major advances in understanding the cy-cling of trace metals in the ocean have been made in the last few years. At the same time, studies of manganese indicate that the geo-chemistry of this trace metal is Author: Carolyn J. Jonest and James W. Murray.   The rare earth element (REE) is important not only in world industrial demand 1, but also in tracing various geochemical processes is widely used Cited by:

      East Pacific geochemistry North Pacific chemically precipitated rocks Northeast Pacific Pacific Ocean marine sediments rare earths metals sedimentary rocks sediments sulfates sulfides You do not currently have access to this by: [1] Eolian components of a ‐cm‐long piston core collected from the northeast equatorial Pacific at 16°12′N and °59′W were investigated for mineral and geochemical compositions in order to constrain the sources of dust and determine the latitudinal position of the Intertropical Convergence Zone (ITCZ) recorded in the core. The eolian components below cm are characterized by Cited by:

      trace elements follow the path ofeither Feor Mn near the mouth (Fig. 1).Therefore, the decrease of trace metals near the mouth is due to a combined effect of both the processes. Ni content does not show much reduction in the estuarine mouth and the average Ni content in the estuary is higher than river by: We analyzed deep-sea sediment samples from 19 Deep Sea Drilling Project/Ocean Drilling Program sites covering a large portion of the Indian Ocean, and constructed a new and comprehensive data set of their bulk chemical compositions, including rare-earth, major, and trace by:


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Trace metal geochemistry of sediments, northeast Pacific Ocean by B. D. Bornhold Download PDF EPUB FB2

Trace metal geochemistry of sediments, northeast Pacific Ocean. [B D Bornhold; D L Tiffin; R G Currie] -- It was the purpose of this study to undertake a reconnaissance examination of sediments in the vicinity of the northern Juan de Fuca and Explorer ridges, active spreading ridges in the northeast.

To address these questions, we investigated the geochemistry of the water column, sinking particles, and sediments from the eastern tropical North Pacific southwest of Mazatlán, Mexico (22°41’N, °28’W), where the oxygen minimum zone (OMZ) (Wyrtki, ) impinges on the continental shelf and slope.

We evaluated the contribution of metals in the sinking particle flux and the extent of Cited by: Suboxic trace metal geochemistry in the Eastern Tropical North Pacific Article (PDF Available) in Geochimica et Cosmochimica Acta 66(7) April. The study of the different oxidation states of trace metals can put limits on the oxidation state of seawater.

In addition, the changes in oxidation state can influence input and removal in the ocean. Manganese and chromium form a contrasting pair with opposite by: Anoxic sediments have large authigenic enrichments of redox sensitive trace metals, but they comprise only a comparatively small fraction of ocean sediments (%; Manheim, ) and generate a correspondingly small fraction of the global metal by: The geochemistry of manganese in the northeast Pacific Ocean off Washington’ v2 Carolyn J.

Jones3T4 and James W. Murray School of Oceanography WB- 10, University of Washington, Seattle 98 Abstract Water collected along a transect normal to the coast of Washington Cited by: [1] Trace metal analyses of river channel sediments from Taiwan and New Zealand provide new estimates for global budgets of trace metal inputs to the world's ocean.

Mean trace metal values from high standing island river sediments are less chemically weathered than observed in sediments collected from large, continental, rivers and more similar to upper continental crust (UCC) by:   Indicator role of trace elements in sedimentation and ore formation is considered for sediments from Station in the Angola Basin.

It is shown that pelagic sediments were formed from two main sources: biogenic calcium carbonate and lithogenic sediment component compositionally similar to the miopelagic clay. Increase of the Mn/Al ratio, Ce anomaly in the REE composition, Co/Ni Cited by: 8.

Sediments may be classified according to the origin of the minerals composing the bulk sediment, with end-members being referred to as terrigenous, biogenic or metalliferous sediment. Terrigenous sediments results from the processes of physical/chemical weathering and erosion acting upon upper crustal rocks exposed at the surface of the Earth.

Title: Late Quaternary History of the Northeast Pacific Ocean off Vancouver Island, Canada: Authors: McKay, J. L.; Pedersen, T.

Affiliation: AA(GEOTOP, University of Quebec at Montreal, C.P.succursale Centre-Ville, Montreal, QC H3C 3P8 Canada), AB(School of Earth and Ocean Sciences, University of Victoria, Petch BuildingFinnerty Road, Victoria, BC V8P 5C2 Canada).

The processes occurring in surface marine sediments have a profound effect on the local and global cycling of many elements. This graduate text presents the fundamentals of marine sediment geochemistry by examining the complex chemical, biological, and physical processes that contribute to the conversion of these sediments to rock, a process known as early by: Because of this, real trends in the trace element data were sometimes totally masked by noise in the system, creating what Chester () described as a ‘frustration barrier’, which prevented marine chemists from being able to relate trace metal distribution Cited by: The Marine Geochemistry of Trace Metals.

collected in the northeast Pacific Ocean and analyzed for their cadmium content. of pelagic sediments from the East Pacific Ocean has been.

Sediments at DOMES Sites A, B and C are mixtures of pelagic clay, biogenic ooze, hydrogenous metals, and metalliferous sediment. The relative proportions of these components and the importance of.

try of deep-sea pelagic sediments, with some nice details on the geochemistry of trace metals, nodules, and turbidites, as well as calcium carbonate diagenesis. The remaining sections of the book, chaptersdelve into carbon preservation, as it relates in part to oxygen exposure and sur­ face area effects.

A comprehensive reviewAuthor: Thomas S. Bianchi. Horizontal gradients are also observed in the oxygen min-imum as manganese concentrations decrease from nmol kg-l near the continental slope to 1 in open ocean water. Tectonics and sediment geochemistry of Tuzo Wilson Seamounts, northeast Pacific Ocean: Creator: Denton, Alexander W.

Publisher: University of British Columbia: Date Issued: Description: The Tuzo Wilson Seamounts are two submarine volcanic edifices that are located 50 km southwest of the Queen Charlotte Islands, offshore British Columbia.

Trace element (Mn, Zn, Ni, V) and authigenic uranium (aU) geochemistry reveal sedimentary redox history on the Juan de Fuca Ridge, North Pacific Ocean Author links open overlay panel Kassandra M. Costa a b Robert F.

Anderson a b Jerry F. McManus a b Gisela Winckler a b Jennifer L. Middleton a Charles H. Langmuir cCited by:   Authigenic ferromanganese formations in sediments from two horizons (0–10 and – cm) located in the low/high bioproductive transitional zone of the Pacific Ocean were studied.

In addition to the compositionally different two types of micronodules, crusts and ferromanganese nodules were detected in the surface horizon (0–1 cm).Cited by: 8. Xosé Luis Otero, Miguel Angel Huerta-Diaz and Felipe Macı́as, Influence of a turbidite deposit on the extent of pyritization of iron, manganese and trace metals in sediments from the Guaymas Basin, Gulf of California (Mexico), Applied Geochemistry, /S(02), 18, 8.

A number of other species, mostly connected with biological activity, are subject to wide variations in concentration. These include the nutrients NO 3 –, NO 2 –, NH 4 +, and HPO 4 2–, which may become depleted near the surface in regions of warmth and was explained in the preceding subsection on coastal upwelling, offshore prevailing winds tend to drive Western coastal surface.Rare-earth, major, and trace element geochemistry of deep-sea sediments in the Indian Ocean: Implications for the potential distribution of REY-rich mud in the Indian Ocean.Fe-Mn nodule morphotypes from the NE Clarion-Clipperton Fracture Zone, Pacific Ocean: comparison of mineralogy, geochemistry and genesis Article (PDF Available) in Ore Geology Reviews May