Table of contents

 

 

 

 

 

 

 

From Ocean to Ice: An examination of the Devonian bedrock and overlying Pleistocene sediments at Messerly & Morgan Quarries, Black Hawk County, Iowa

 

 

Raymond R. Anderson

1

An Upper Middle Through Lower Upper Devonian Lithostratigraphic and Conodont Biostratigraphic Framework of the Midcontinent Carbonate Shelf Area, Iowa

 

 

Bill J. Bunker and Brian J. Witzke

3

 

 

Introduction

3

 

 

Statigraphy

6

 

 

 

Wapsipinicon Group

6

 

 

 

Cedar Valley Group

6

 

 

 

 

Little Cedar Formation

6

 

 

 

 

 

Solon Member

7

 

 

 

 

 

Rapid Member

8

 

 

 

 

 

Bassett Member     

10

 

 

 

 

 

Chickasaw Shale Member

10

 

 

 

 

 

Eagle Center Member

11

 

 

 

 

 

Hinkle Member

11

 

 

 

 

Coralville Formation

11

 

 

 

 

 

Cou Falls Member

12

 

 

 

 

 

Gizzard Greek Member

12

 

 

 

 

 

Iowa City Member

13

 

 

 

 

Problems relating to the Coralville-Lithograph City contact

13

 

 

 

 

Lithograph City Formation

15

 

 

 

 

 

Osage Springs Member

15

 

 

 

 

 

Thunder Woman Shale Member

16

 

 

 

 

 

Idlewild Member

16

 

 

 

 

 

State Quarry Member

16

 

 

 

 

 

Andalusia Member

17

 

 

 

 

Shell Rock Formation

17

 

 

 

North Liberty Beds”

18

 

 

Depositional Cycles

18

 

 

 

Midcontinent Carbonate Shelf

19

 

 

 

Cycle Boundaries

19

 

 

Interregional Correlations

22

 

 

Summary

22

 

 

Reference

23

Bedrock Geology of the Cedar Falls/Waterloo Area

 

 

John R. Groves

29

 

 

Stop1 – Messerly Quarry

30

 

 

Stop 2 – Morgan Quarry

32

 

 

A Note on Stromatoporoids

32

 

 

References

34

Quaternary Geology of the Cedar Falls/Waterloo Area

 

 

James C. Walters

37

 

 

The Iowan Surface

37

 

 

The Cedar Valley

38

 

 

Messerly Quarry

38

 

 

Morgan Quarry

39

 

 

References

41