Clay Mineral Facies of Certain Pennsylvanian Underclays
Author: Walter Edward Parham
Publisher:
Published: 1962
Total Pages: 274
ISBN-13:
DOWNLOAD EBOOKIt has been known for many years that some of the underclays associated with the coals of Pennsylvanian age are well suited for the manufacture of refractories and light colored fired clay products, whereas others are extremely undesirable in many respects for such use. In general the underclays occurring lower stratigraphically are most likely to fulfill the qualifications for light colored and refractory products ...