Add to ORKGThis is a guidebook for field conference of a culmination of a long series of cooperative investigations in Iowa. With the staff of the Iowa Geological Survey and many other departments and survey services in accompanying states to produce this guidebook. This guidebook is a supplement part of the report, the detailed findings and review of previous investigations will not be elaborated in the publication
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
The most important geological discovery in Iowa in recent years is the revelation that our Devonic d...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This paper is a renewal of a practice carried on by L. W. Wood in the 1930s, that of presenting each...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
A recently discovered exposure of fossiliferous beds of Upper Devonian age in Iowa County, Iowa, con...
This is the first of a two-part report dealing primarily with the Devonian strata in the subsurface ...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
The most important geological discovery in Iowa in recent years is the revelation that our Devonic d...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This paper is a renewal of a practice carried on by L. W. Wood in the 1930s, that of presenting each...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
A recently discovered exposure of fossiliferous beds of Upper Devonian age in Iowa County, Iowa, con...
This is the first of a two-part report dealing primarily with the Devonian strata in the subsurface ...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...
This is a guidebook for field conference of a culmination of a long series of cooperative investigat...