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Geologic time scale.

Graphic of the geologic time scale showing the ages in millions of years. The Mississippi River and Mississippi River Delta deposits are Holocene with an age of .01 million years ago and Pleistocene with an age of 2.6 million years ago.

The divisions of geologic time are organized stratigraphically, with the oldest divisions at the bottom and the youngest at the top of the scale. GRI map abbreviations for each time division are in parentheses. Deposits in the GRI GIS data are from the Quaternary (Q) Period, namely deposits of the Mississippi River and Mississippi River Delta, which are Holocene (H), but also Pleistocene (PE) alloformations. Compass directions in parentheses indicate the regional locations of events. Boundary ages are millions of years ago (MYA).

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NPS graphic using dates from the International Commission on Stratigraphy

Public domain:Full Granting Rights

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Jean Lafitte National Historical Park and Preserve, Code: JELA

Jean Lafitte National Historical Park and Preserve, Louisiana
Latitude: 29.8020095825195, Longitude: -90.1701812744141

NPS.gov Collection

02/27/2017

02/27/2017

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Monday, June 14, 2021 4:52:50 PM

Monday, June 14, 2021 4:52:50 PM

4_Geo Time Scale FY17.jpg

Monday, February 27, 2017 3:52:18 PM

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2017-02-27T08:52:18-07:00

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