Add to ORKGOrganic remains in glacial drifts and interglacial deposits are relatively abundant in Iowa and serve as valuable aids for the resolution of certain Pleistocene problems. The existence of fossils in the glacial deposits was early recognized and became one of the criteria for the separation of drift sheets (McGee, 1878). In 1895 T. C. Chamberlain noted the presence of peat separating two tills in the Afton Junction-Thayer region of Union County, Iowa. The name Aftonian was applied in connection with these interglacial deposits and has become the established designation of the oldest recognized interglacial stage in North America
Johnson County offers a field of phenomena that are strikingly applicable to the theme of our late P...
In June, 1960, a 2-ft. post-Kansan peat deposit was exposed in a building excavation in Grinnell (Po...
For ten years it has been well known to geologists that all of the State of Iowa was at one time or ...
Organic remains in glacial drifts and interglacial deposits are relatively abundant in Iowa and serv...
Union County already occupies a notable place in the annals of the Pleistocene geology of our State....
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
he Aftonian deposits of southwestern Iowa have peculiar interest in that within the area is the type...
In 1937 a portion of U. S. Highway 30 near Belle Plaine, Iowa was re-routed, resulting in extensive ...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
This paper includes descriptions and interpretations of drift sections which were made available for...
Erosion along Waterman Creek, O\u27Brien County, Iowa, has exposed two tills separated by a peat bed...
From the angle of genesis we lately have to modify some of our ideas on our Glacial till-sheets. Rea...
The Pleistocene stratigraphy and sedimentology of two quarry exposures near Grand River and Decatur ...
Workmen digging a well at the elevator during April, 1896, came to a forest bed at a depth of eighty...
Some of the larger valleys of pre-glacial and inter-glacial topography have been located and describ...
Johnson County offers a field of phenomena that are strikingly applicable to the theme of our late P...
In June, 1960, a 2-ft. post-Kansan peat deposit was exposed in a building excavation in Grinnell (Po...
For ten years it has been well known to geologists that all of the State of Iowa was at one time or ...
Organic remains in glacial drifts and interglacial deposits are relatively abundant in Iowa and serv...
Union County already occupies a notable place in the annals of the Pleistocene geology of our State....
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
he Aftonian deposits of southwestern Iowa have peculiar interest in that within the area is the type...
In 1937 a portion of U. S. Highway 30 near Belle Plaine, Iowa was re-routed, resulting in extensive ...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
This paper includes descriptions and interpretations of drift sections which were made available for...
Erosion along Waterman Creek, O\u27Brien County, Iowa, has exposed two tills separated by a peat bed...
From the angle of genesis we lately have to modify some of our ideas on our Glacial till-sheets. Rea...
The Pleistocene stratigraphy and sedimentology of two quarry exposures near Grand River and Decatur ...
Workmen digging a well at the elevator during April, 1896, came to a forest bed at a depth of eighty...
Some of the larger valleys of pre-glacial and inter-glacial topography have been located and describ...
Johnson County offers a field of phenomena that are strikingly applicable to the theme of our late P...
In June, 1960, a 2-ft. post-Kansan peat deposit was exposed in a building excavation in Grinnell (Po...
For ten years it has been well known to geologists that all of the State of Iowa was at one time or ...