Add to ORKGAbout three miles east of Independence, Iowa, there are cross-bedded, water-laid deposits of sand and gravel of more than usual interest. The beds in question occur near the line of the Illinois Central railway. The railway company indeed has opened up the beds and developed a great gravel pit from which many thousands of carloads have been taken and used as ballast along the line
The discoveries of localities showing glacial scoring in southeastern Iowa have been somewhat numero...
A layer of Wisconsin drift ranging up to 150 feet in thickness mantles the better part of the bedroc...
The sandstones under consideration lie in old gorges in Devonian limestone a short distance north of...
About three miles east of Independence, Iowa, there are cross-bedded, water-laid deposits of sand an...
In the various geological reports of counties in the Iowan area and of counties through which pass d...
On the John G. Miller farm, Section 27, Waterloo Township, Black Hawk County, the writer examined ve...
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
During the field season of 1917, the writer examined two exposures of stratified sands and gravels, ...
The long period intervening between the deposit of the Cretaceous rocks of Iowa and the advent of th...
During the past summer the author made a series of observations, at the request of Prof. S. Calvin, ...
Opening a quarry on the southern edge of a Middle River bluff, the quarryman exposed 20 feet of the ...
The section is located on the line of the Wabash railway about two miles below the little station of...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
The gravels related to the Iowan glaciation of northeastern Iowa have been studied in the field and ...
Union County already occupies a notable place in the annals of the Pleistocene geology of our State....
The discoveries of localities showing glacial scoring in southeastern Iowa have been somewhat numero...
A layer of Wisconsin drift ranging up to 150 feet in thickness mantles the better part of the bedroc...
The sandstones under consideration lie in old gorges in Devonian limestone a short distance north of...
About three miles east of Independence, Iowa, there are cross-bedded, water-laid deposits of sand an...
In the various geological reports of counties in the Iowan area and of counties through which pass d...
On the John G. Miller farm, Section 27, Waterloo Township, Black Hawk County, the writer examined ve...
The interglacial deposits of northeastern Iowa embrace the peat and forest bed which has been known ...
During the field season of 1917, the writer examined two exposures of stratified sands and gravels, ...
The long period intervening between the deposit of the Cretaceous rocks of Iowa and the advent of th...
During the past summer the author made a series of observations, at the request of Prof. S. Calvin, ...
Opening a quarry on the southern edge of a Middle River bluff, the quarryman exposed 20 feet of the ...
The section is located on the line of the Wabash railway about two miles below the little station of...
Until very recently, geologists working in Iowa have been content to refer the various boulder clays...
The gravels related to the Iowan glaciation of northeastern Iowa have been studied in the field and ...
Union County already occupies a notable place in the annals of the Pleistocene geology of our State....
The discoveries of localities showing glacial scoring in southeastern Iowa have been somewhat numero...
A layer of Wisconsin drift ranging up to 150 feet in thickness mantles the better part of the bedroc...
The sandstones under consideration lie in old gorges in Devonian limestone a short distance north of...