About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
Volume:
Issue:
First Page:
Last Page:
Title:
Author(s):
Abstract:
Early studies of Atchafalaya delta focused on large-scale characteristics of accretion in Atchafalaya Bay. This study concentrates on sedimentation processes and stratigraphic as well as plan-view facies development in a rapidly prograding bayhead delta.
Since initiation of subaqueous delta growth (early 1950s), the bay has become shallower with accumulation of progressively coarser grained sediment. Stratigraphic relationships indicate a buildup from the pre-1950 bay bottom through prodelta, distal bar, distributary-mouth bar, levee, back-bar algal flat, and channel-fill deposits.
At the present stage of delta development, two distinct processes of subaerial growth are recognizable. Initial growth relates to channel extension, bifurcation, and development of sinuous overbank channels. A later, more mature response of lobe fusion and upstream lobe growth becomes dominant as progradation through bifurcation diminishes in older areas of the delta.
Atchafalaya delta growth to 1982 serves as a well-documented sedimentary example for understanding bayhead deltas, which commonly form in protected environments.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |
AAPG Member?
Please login with your Member username and password.
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].