thumbnail

Variations in the fine-scale composition of a central Pacific ferromanganese crust: paleoceanographic implications

Paleoceanography

By:
, , , , and

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time
  • Download citation as: RIS

Abstract

The crust represents 18.5 m.y. of growth of Fe and Mn oxyhydroxides. The crust is composed of alternating botryoidal and laminated layers. The botryoidal layers formed during the same time intervals that widespread Neogene deep-sea hiatuses were forming in bottom sediments. The botryoidal layers represent growth during times of intensified deepwater flow, whereas the laminated intervals represent more quiescent conditions. The broader changes in composition occurred primarily at about 15, 11.5, 7.4, 6.4, 5.2 and 4.6 Ma, which may correlate with major changes in paleoceanographic circulation and development of ice caps at the poles. -Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Variations in the fine-scale composition of a central Pacific ferromanganese crust: paleoceanographic implications
Series title:
Paleoceanography
Volume
7
Issue:
1
Year Published:
1992
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Paleoceanography
First page:
63
Last page:
77
Number of Pages:
15