Also known as Middle Bay-Sound Clay, Lake Carmel Pit

Where: Orleans County, Louisiana (30.1° N, 90.0° W: paleocoordinates 30.1° N, 90.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Middle Member (Michoud Formation), Holocene (0.0 - 0.0 Ma)

• Five late Quaternary stratigraphic units are exposed at the Lake Carmel borrow pit. These in ascending order are : 1) deltaic equivalents of Deweyville terrace alluvium (Wisconsin); 2) a buried soil zone, "Little Woods paleosol" (late Wisconsin-early (Pleistocene); 3) bay-sound clay, "Michoud Formation" (middle Holocene); 4) barrier bar sand of the New Orleans trend (middle Holocene); 5) St Bernard prodeltaic and delta front deposits (late Holocene). This collection is from the Bay-Sound Clay (Michould Formation), a slightly shell, greenish gray, soft silty clay to clayey silt immediately above the Pleistocene unconformity. The botttom of the clay is dated at 7,290 and 7,200 years. The unit is 4 m thick. The collection comes from depth 7.5-9m

• bed-level stratigraphic resolution

Environment/lithology: paralic; poorly lithified, shelly/skeletal, gray, green, silty claystone and poorly lithified, shelly/skeletal, gray, green, argillaceous siltstone

Size class: macrofossils

Collection methods: bulk,

• All taxa collected and identified G. Mollyn. Unknown repository, though possibly Tulane University

Primary reference: W. Miller, III. 1983. Stratigraphy of newly exposed Quaternary seduments, eastern Orleans Parish, Louisiana. Tulane Studies in Geology and Paleontology 17(4):85-104 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 41942: authorized by Austin Hendy, entered by Austin Hendy on 22.07.2004

Creative Commons license: CC BY (attribution)