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DETRITAL CHROMITE CONCENTRATIONS, NEARSHORE PORT-AU-PORT BAY, NEWFOUNDLAND

EMORYMOORE, M ; SCOTT, WJ ; DAVIS, L ; SOLOMON, S

Atlantic geology, 1992, Vol.28 (3), p.233-241 [Periódico revisado por pares]

WOLFVILLE: ATLANTIC GEOLOGY

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  • Título:
    DETRITAL CHROMITE CONCENTRATIONS, NEARSHORE PORT-AU-PORT BAY, NEWFOUNDLAND
  • Autor: EMORYMOORE, M ; SCOTT, WJ ; DAVIS, L ; SOLOMON, S
  • Assuntos: Geology ; Marine ; Physical Sciences ; Science & Technology
  • É parte de: Atlantic geology, 1992, Vol.28 (3), p.233-241
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: A nearshore sediment sampling program was undertaken in Port au Port Bay, western Newfoundland. The objectives of the program were to map the distribution of detrital chromite in the seabed sediments and to evaluate the paleoenvironmental evolution of chromite-bearing sedimentary facies. Bottom sediments were found to be enriched in detrital chromite in an area adjacent to and parallel to the east shore of the bay, south of the mouth of the Fox Island River. During glaciation, chromite from the Lewis Hills ophiolite complex was incorporated in glacial materials. Post-glacial reworking of chromite-bearing sediments by fluvial and marine processes is observed in a number of sedimentary facies: fluvial sediments of the Fox Island River, a large outwash plain and marine-limit delta occurring near the mouth of Fox Island River, an erosional lag blanketing the outwash delta, and emergent and submergent beach terraces bordering a small coastal embayment south of Fox Island River. The relatively low wave energy of the Port au Port Bay area appears, however, to have precluded extensive placer development in all sedimentary facies.
  • Editor: WOLFVILLE: ATLANTIC GEOLOGY
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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