Physical and Chemical Data on Sediments Deposited in the Missouri and the Mississippi River Flood Plains During the July Through August 1993 Flood - Floods in the Upper Mississippi River Basin 1993

U.S. Geological Survey, Circular 1120-L

by Gregg K. Schalk, Robert R. Holmes, Jr., and Gary P. Johnson

Table of Contents

Foreword

Abstract

Introduction

Purpose and Scope

Description of Study Area

Study Methods

Site Selection and Location

Sampling Techniques

Laboratory Analytical Methods

Quality-Assurance Samples

Physical and Chemical Data on Sediments

Particle-Size Distribution

Moisture Content and Volatile Solids, Nutrient, and Carbon Concentrations

Selected Element Concentrations

Pesticide Concentrations

Semivolatile Organic Compound Concentrations

Summary and Conclusions

References Cited

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