Erosion and deterioration of Isles Dernieres Barrier Island arc, Louisiana: 1842-1988
- Louisiana Geological Survey, Baton Rouge (USA)
- Geological Survey, Menlo Park, CA (USA); Sallenger, A.
- Geological Survey, Reston, VA (USA)
The Isles Dernieres barrier island arc is the most rapidly eroding coastline in the US. Located on the Mississippi River delta plain in Terrebonne Parish, Louisiana, the Isles Dernieres consists of four smaller islands in a 32-km long chain. From west to east, these islands are known as Raccoon Island, Whiskey Island, Trinity Island, and East Island. The barrier island arc is separated from the mainland by Caillou Bay, Boca Caillou, and Lake Pelto lagoonal systems. The abandonment and transgression of the Bayou Petit Caillou delta (part of the larger Lafourche delta complex) over the last 600 years, along with sea level rise, repeated storm impacts, and rapid shoreface erosion, have led to the formation of the Isles Dernieres. Continued transgressive submergence combined with a diminishing sediment supply are driving the extreme coastal erosion found in the Isles Dernieres.
- OSTI ID:
- 5140767
- Report Number(s):
- CONF-8910221-; CODEN: AABUD
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (USA), Vol. 73:9; Conference: Gulf Coast Association of Geological Societies and Gulf Coast Section of SEPM meeting, Corpus Christi, TX (USA), 25-27 Oct 1989; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
Similar Records
Seismic stratigraphy of barrier-island arc retreat paths in Mississippi River delta
Distribution and textural character of surficial sediments, Isles Dernieres to Ship Shoal region, Louisiana