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Excerpt from Petrology of the Pennsylvanian Underclays of IllinoisUnderclays seemingly have been subjected little or not at all to processes similar to those forming modern soils. The significance of the petrographic data on the origin and genesis of underclays is discussed in detail.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an...

Excerpt from Petrology of the Pennsylvanian Underclays of IllinoisUnderclays seemingly have been subjected little or not at all to processes similar to those forming modern soils. The significance of the petrographic data on the origin and genesis of underclays is discussed in detail.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an...

Excerpt from Differential Thermal Analyses of Clay Minerals and Other Hydrous MaterialsDifferential thermal analyses have been published for many of the Clay minerals, but unfortunately results Of different authors have not always been in agreement. The present paper records additional analyses for many Of these minerals and seeks to Clarify some of the controversial points. Analyses are presented also for many additional materials that have n...

Excerpt from Petrography of the Fuller's Earth Deposits, Olmstead, Illinois: With a Brief Study of Some Non-Illinois EarthsThe term fuller's earth is herein applied to any clay that has a high capacity for removing color from animal, vegetable, or mineral oils. NO particular composition, texture, or genesis is implied by the term, although decolorizing ability may be related to these factors. The name was derived from the original use of earth...

Excerpt from Petrography of the Fuller's Earth Deposits, Olmstead, Illinois: With a Brief Study of Some Non-Illinois EarthsThe term fuller's earth is herein applied to any clay that has a high capacity for removing color from animal, vegetable, or mineral oils. NO particular composition, texture, or genesis is implied by the term, although decolorizing ability may be related to these factors. The name was derived from the original use of earth...

Excerpt from Differential Thermal Analyses of Clay Minerals and Other Hydrous MaterialsDifferential thermal analyses have been published for many of the Clay minerals, but unfortunately results Of different authors have not always been in agreement. The present paper records additional analyses for many Of these minerals and seeks to Clarify some of the controversial points. Analyses are presented also for many additional materials that have n...

Excerpt from Modern Concepts of Clay MaterialsClay materials are composed essentially of minute crystalline particles of any one or more members Of a few groups of minerals known as the clay minerals. Using this clay-mineral concept as a point Of departure, researches starting from the many fields in which clay materials are important - from agriculture, engineering, geology, and the ceramic, rubber, paper, petroleum, and many other industries...

Excerpt from Petrology of the Paleozoic Shales of IllinoisThe work reported herein was done by the staff of the Illinois State Geo logical Survey as part of the funda mental study of the natural resources of Illinois to provide a basis for their use and future development.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important h...

Excerpt from Petrology of the Paleozoic Shales of IllinoisThe work reported herein was done by the staff of the Illinois State Geo logical Survey as part of the funda mental study of the natural resources of Illinois to provide a basis for their use and future development.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important h...

Excerpt from Modern Concepts of Clay MaterialsClay materials are composed essentially of minute crystalline particles of any one or more members Of a few groups of minerals known as the clay minerals. Using this clay-mineral concept as a point Of departure, researches starting from the many fields in which clay materials are important - from agriculture, engineering, geology, and the ceramic, rubber, paper, petroleum, and many other industries...