Add to ORKGThis report on coal is a more comprehensive report. The report discussed distribution, the geological relationships, the characteristics of the coal beds, the chemical composition and other features of the coals
The lower measures of the Iowa-Missouri coal field consist of a series of sandstones, shales, fire c...
Reprinted from Economic geology, vol. 44, no. 1, pp. 1-12, January-February, 1949.Bibliography: p. 1...
The exposed stratified rocks of central Iowa are made up chiefly of Lower Coal Measure clays, shales...
Includes: The Composition of Iowa Coals Studies in the Washing of Iowa Coal The Storage of Iowa Co...
The chemistry department of Iowa Wesleyan College first began a preliminary chemical analysis on som...
Includes articles: Some Aspects of the Iowa Coal Problem by H. L. Olin; Chemical and Thermal Values ...
This booklet is a review of the coal industry in Iowa during the early part of the 20th century. Top...
Proper interpretation of these statistical facts, which superficially seem to indicate that the gene...
With nearly seven billion tons of coal, Iowa is destined to contribute significantly toward our nat...
Estimates of strippable coal reserves were made for 12 counties in south-central Iowa, for the purpo...
Samples of carbonaceous material from several exposures of the Cedar Valley formation have been stud...
Recent diastatic analyses of our Des Moines coal measures, particularly of the great Arkansan centru...
The coals of commerce acquire names by which they are widely known, and upon which their reputations...
The district at hand is one somewhat remote from any known field of productive Coal Measures, but be...
Citation: Christensen, Frederic Waldemar. Detailed stratigraphy of Kansas coals. A review of Erasmus...
The lower measures of the Iowa-Missouri coal field consist of a series of sandstones, shales, fire c...
Reprinted from Economic geology, vol. 44, no. 1, pp. 1-12, January-February, 1949.Bibliography: p. 1...
The exposed stratified rocks of central Iowa are made up chiefly of Lower Coal Measure clays, shales...
Includes: The Composition of Iowa Coals Studies in the Washing of Iowa Coal The Storage of Iowa Co...
The chemistry department of Iowa Wesleyan College first began a preliminary chemical analysis on som...
Includes articles: Some Aspects of the Iowa Coal Problem by H. L. Olin; Chemical and Thermal Values ...
This booklet is a review of the coal industry in Iowa during the early part of the 20th century. Top...
Proper interpretation of these statistical facts, which superficially seem to indicate that the gene...
With nearly seven billion tons of coal, Iowa is destined to contribute significantly toward our nat...
Estimates of strippable coal reserves were made for 12 counties in south-central Iowa, for the purpo...
Samples of carbonaceous material from several exposures of the Cedar Valley formation have been stud...
Recent diastatic analyses of our Des Moines coal measures, particularly of the great Arkansan centru...
The coals of commerce acquire names by which they are widely known, and upon which their reputations...
The district at hand is one somewhat remote from any known field of productive Coal Measures, but be...
Citation: Christensen, Frederic Waldemar. Detailed stratigraphy of Kansas coals. A review of Erasmus...
The lower measures of the Iowa-Missouri coal field consist of a series of sandstones, shales, fire c...
Reprinted from Economic geology, vol. 44, no. 1, pp. 1-12, January-February, 1949.Bibliography: p. 1...
The exposed stratified rocks of central Iowa are made up chiefly of Lower Coal Measure clays, shales...