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Recharge Zones in the Mississippi – Yazoo Alluvial Plain

Alluvial Fans are the primary source of recharge to the aquifer underlying the Mississippi-Yazoo Alluvial Plain ("Mississippi Delta"). The fans, which form a discontinuous chain at the foot of a low bluffline, from DeSoto County near Memphis to Wilkinson County near the Louisiana state line, are of great significance in allowing recharge into the Mississippi River Valley alluvial aquifer (MRVA) in Mississippi's "Delta" region. While some fans are fairly recent surficial features, drilling has revealed others have deep roots in the floodplain alluvial sequence and reflect multiple episodes of deposition and burial. While archaeologic data indicates that some have seen virtually no deposition for thousands of years, others have significant deposits which have accumulated since European settlement. There should be awareness of the fans as recharge source areas which may need protection from pollution. The 2 sheets in this report show these fans and also differentiate between the impermeable, hydric clays of the delta and the non-hydric alluvial soils which allow recharge to the MRVA. The Shapefile of the alluvial fans mapped in this report are also available for download.

OF-306 Figured Specimens in Mississippi Department of Environmental Quality Office of Geology Collections

Figured specimens housed at in the Department of Environmental Quality Office of Geology collections at the 2525 North West Street office are designated by the abbreviation MGS, an abbreviation of the agency’s old name, Mississippi Geological Survey. This publication lists these figured specimens numbered successively as they appear on published plates.

Mississippi Environmental Geology

Mississippi Environmental Geology is a textbook on Environmental Geology with case histories from Mississippi. The sixteen chapters of the book chronical how bedrock geology impacts the environment and how geology is used to prevent and remediate environmental problems.

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Mississippi Geology – Volume 20, Number 3

Characteristics of the Courtland, Mississippi, Earthquake of February 24, 1999 - Charles T. Swann, Michael B. E. Bograd, and William Hudson (Page 1 (37))
Geologist Remembered: Dr. Paul E. Albertson (1955-1999) - James H. May (Page 9 (45)
Mississippi Office of Geology Publication Sales for Fiscal Year 1999 - Margaret Allen and Michael B. E. Bograd (Page 11 (47))