thumbnail

Magadi-type chert, indicator of a lacustrine environment in the Middle Eocene McBean formation, South Carolina.

Southeastern Geology

By:

Links

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

Abstract

Magadi-type chert (chert derived from magadiite) occurs in the basal part of the formation at three localities in Orangeburg and Calhoun Counties. These occurrences imply that the basal part of the McBean formation was deposited here in an alkaline lake with a high silica content. Formation and filling of the lacustrine depression could have resulted from a timely combination of the following factors: an initial nearshore to estuarine depositional environment; falling sea-level; minor tectonic uplift of the Cape Fear Arch and/or the northern boundary of the south Georgia rift basin; intense chemical weathering in a tropical climate; and seasonal rainfall. The mineralogy, chemistry and genesis of the chert are considered.-R.S.M.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Magadi-type chert, indicator of a lacustrine environment in the Middle Eocene McBean formation, South Carolina.
Series title:
Southeastern Geology
Volume
25
Issue:
4
Year Published:
1985
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Southeastern Geology
First page:
185
Last page:
197
Number of Pages:
13