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M.I. Goldman

Publications and source records attributed to M.I. Goldman.

9 recordsLinked to original sources
USGS1946

Relations of bauxite and Kaolin in the Arkansas bauxite deposits

Investigation of the Arkansas bauxite deposits by the U. S. Geological Survey during the years 1942 to 1945 has brought out the fact that secondary kaolinization or silication of the bauxite is much more common than has been generally recognized. On the other hand no direct evidence was found of the development of bauxite from kaolin. These facts have led us to reconsider the genetic relations of bauxite and kaolin. We do not mean to deny that there has been direct kaolinization of the nepheline syenite; but in view of the above observations and of the character of the kaolin derived from bauxite, we believe that the relations of bauxite and kaolin in the Arkansas deposits are more readily explained on the assumption that the bauxite is derived directly from the nepheline syenite, rather than from kaolinized nepheline syenite. The silica causing its subsequent kaolinization may be derived from overlying sediments or from remnants of unbauxitized nepheline syenite within or adjacent to it .Our conclusions about the relations of the kaolinized and bauxitized nepheline syenite are based entirely on rock weathered in place.

Arkansas↗
USGS1922

Lithologic subsurface correlation in the "Bend series" of north-central Texas

This paper presents the results of an attempt to obtain, by a study of well drillings, criteria for correlation, by the character of the beds encountered, of horizons in the "Bend series" of north-central Texas. The result of the work most directly applicable to the needs of the oil-well operator is that of enabling him to know more exactly the position of the producing beds in his well- a result that is of particular value in north-central Texas because certain beds in that region which give no show of oil to the drill may on being "shot" yield considerable oil. To know the part of the stratigraphic section reached by the drill at any stage of the boring also enables the driller to be on the alert for indications of oil at horizons where productive sands are encountaered in other wells and to know when the drill has passed all horizons at which the beds are likely to yield oil.

Professional Paper↗