Add to ORKGUnion County already occupies a notable place in the annals of the Pleistocene geology of our State. Near the towns of Thayer and Afton Junction are exposed the gravel beds which first furnished the basis for the separation of the drift of the pre-Kansan age from that of the Kansan, and for the establishment of the Aftonian interglacial interval The name of this latter age of American geology was taken from the town of Afton which is located not far from the above mentioned gravel exposures, in Union county
In 1937 a portion of U. S. Highway 30 near Belle Plaine, Iowa was re-routed, resulting in extensive ...
There are at least two pre-glacial valleys in Lee County, which is situated in the extreme southeast...
McGhee, in the map accompanying his Pleistocene History of Northeastern Iowa, makes the Upper Till ...
Organic remains in glacial drifts and interglacial deposits are relatively abundant in Iowa and serv...
In making an excavation through a low ridge just east of Oelwein, in Fayette county, the workmen of ...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
In June, 1960, a 2-ft. post-Kansan peat deposit was exposed in a building excavation in Grinnell (Po...
This paper includes descriptions and interpretations of drift sections which were made available for...
he Aftonian deposits of southwestern Iowa have peculiar interest in that within the area is the type...
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
Erosion along Waterman Creek, O\u27Brien County, Iowa, has exposed two tills separated by a peat bed...
In the various geological reports of counties in the Iowan area and of counties through which pass d...
In the region south of the Wisconsin Driftless area an old soil is occasionally found under the Kans...
The most significant features that have been revealed by a study of the Pleistocene deposits in many...
The entire surface of Audubon County is covered with a thick deposit of glacial drift, loess, etc. E...
In 1937 a portion of U. S. Highway 30 near Belle Plaine, Iowa was re-routed, resulting in extensive ...
There are at least two pre-glacial valleys in Lee County, which is situated in the extreme southeast...
McGhee, in the map accompanying his Pleistocene History of Northeastern Iowa, makes the Upper Till ...
Organic remains in glacial drifts and interglacial deposits are relatively abundant in Iowa and serv...
In making an excavation through a low ridge just east of Oelwein, in Fayette county, the workmen of ...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
In June, 1960, a 2-ft. post-Kansan peat deposit was exposed in a building excavation in Grinnell (Po...
This paper includes descriptions and interpretations of drift sections which were made available for...
he Aftonian deposits of southwestern Iowa have peculiar interest in that within the area is the type...
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
Erosion along Waterman Creek, O\u27Brien County, Iowa, has exposed two tills separated by a peat bed...
In the various geological reports of counties in the Iowan area and of counties through which pass d...
In the region south of the Wisconsin Driftless area an old soil is occasionally found under the Kans...
The most significant features that have been revealed by a study of the Pleistocene deposits in many...
The entire surface of Audubon County is covered with a thick deposit of glacial drift, loess, etc. E...
In 1937 a portion of U. S. Highway 30 near Belle Plaine, Iowa was re-routed, resulting in extensive ...
There are at least two pre-glacial valleys in Lee County, which is situated in the extreme southeast...
McGhee, in the map accompanying his Pleistocene History of Northeastern Iowa, makes the Upper Till ...