INTRODUCTION

1

 

 

 

PART 1.  CURRENT CONCEPS IN TILL SEDIMENTATION AND THEIR APPLICATION TO DEPSOITS OF THE DES MOINES LOBE

2

 

Till Sedimentation

2

 

Stop 1.  Alden Section

10

 

Stop 2.  Dows Quarry Section

15

 

 

 

PART 2.  THE ALGONA MORAINE AND VICINITY

24

 

Stop 3.  Corwith Core 2, Glacial Lake Jones

24

 

Stop 4.  The Frontal Margin of the Algona Moraine, Wesley, Iowa

28

 

Stop 5.  A Kame Comprising Part of the Algona Moraine Complex Near Crystal Lake

31

 

Stop 6.  Cores in the Algona Moraine Complex Near Crystal Lake

36

 

Stop 7.  The Lake Mills Section

36

 

 

 

EPILOGUE

42