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Silt heavy-mineral distributions off the Southeastern United States

Geo-Marine Letters

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Abstract

Until recently heavy-mineral studies of marine sediments were largely restricted to sand fractions. New techniques permitting analysis of decalcified silt fractions have been applied to sediments off the southeastern United States. Our data, which confirm predictions from the basic relationship among grain size, specific gravity, and equivalent hydraulic transport behavior, show that concentrations and average diameters of the silt heavy minerals progressively decrease seaward. Heavy minerals always constitute a substantially greater weight percent of the silt than of the sand fraction. Despite corroded surface textures suggestive of extensive weathering and dissolution, spatial trends in the detrital heavy-mineral populations are predominantly controlled by source and hydraulic factors.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Silt heavy-mineral distributions off the Southeastern United States
Series title:
Geo-Marine Letters
Volume
16
Issue:
2
Year Published:
1996
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geo-Marine Letters
First page:
115
Last page:
122
Number of Pages:
8