USGS Logo Geological Survey Professional Paper 374—G
Foraminifera from the Northern Olympic Peninsula, Washington
TABLE OF CONTENTS

Cover

Abstract

Introduction and acknowledgments

Geologic summary
   Stratigraphy
   Structure

Foraminifera from the Crescent formation
   Planktonic assemblages
   Benthonic assemblages
   Age and correlation

Foraminifera from the Aldwell formation
   Age and correlation
   Paleoecology

Foraminifera from the Twin River formation
   Age and correlation
      Lyre River section
      Deep Creek section
      Coast section
      Isolated outcrops
      Characteristics of faunal units
   Regional correlation Paleoecology

Foraminifera from the Clallam formation

Summary of palcoecologic interpretations based on Foraminifera

Identified species
   Systematic discussion    Additional identified species

Collecting localities

References cited

Index (omitted from the online edition)

ILLUSTRATIONS

[Plates 1-4 in pocket; others follow index]

PLATE

1. Geologic map showing U.S. Geological Survey collection localities. (omitted from the online edition)
2. Foraminifera from a part of the Twin River formation on Lyre River (omitted from the online edition).
3. Foraminifera from a part of the Twin River formation on Deep Creek. (omitted from the online edition)
4. Foraminifera from a part of the Twin River formation between the mouths of East Twin River and Murdock Creek. (omitted from the online edition)
5. Foraminifera from the northern. Olympic Peninsula, Washington.
6. Foraminifera from the northern. Olympic Peninsula, Washington.
7. Foraminifera from the northern. Olympic Peninsula, Washington.

FIGURE

1. Stratigraphy of this report, southwest Washington, and a Pacific Coast standard
2. Frequency of occurrence of species in Twin River formation
TABLES

TABLE

1. Benthonic Foraminifera from the Crescent formation
2. Foraminifera from the Aldwell formation
3. Foraminifera from isolated localities in the Twin River formation
4. Foraminifera from the Clallam formation
5. Additional identified species
6. Collecting localities

UNITED STATES DEPARTMENT OF THE INTERIOR
STEWART L. UDALl, Secretary

GEOLOGICAL SURVEY
Thomas B. Nolan, Director


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Last Updated: 28-Mar-2006