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Hellcat News, (Kingman, Ariz.), Vol. 48, No. 9, Ed. 1, May 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 9, Ed. 1, May 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: May 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Petrographic and Geochemical Analyses of Leach Samples from Artillery Peak, Mohave County, Arizona (open access)

Petrographic and Geochemical Analyses of Leach Samples from Artillery Peak, Mohave County, Arizona

Abstract: The first step in determining whether Mn can be recovered by in situ leaching is to develop and test a selective lixiviant. Two column leach tests and one core leach test were conducted by the U.S. Bureau of Mines on Mn oxide ore using aqueous sulfur dioxide (SO2) as the lixiviant. The column tests showed that aqueous SO2 could selectively dissolve available Mn oxides from calcite-rich ore in a heap leach system. However, the core test showed that calcite gangue side reactions can have pronounced negative effects on the likelihood of successful in situ leaching of a calcite-rich ore with aqueous SO2. Petrographic and geochemical analyses showed that both Mn (IV, II) oxides and calcite were dissolved. The abundance of dissolved Ca caused precipitation of gypsum. Acid consumption by calcite dissolution caused a rise in pH that caused the S02/S species to shift to SO32- (sulfite), which hindered reductive dissolution of Mn oxide. Gypsum precipitation did not affect complete leaching of the rock fragments in the column tests; however, it plugged the natural permeability in the core. Manganese recoveries were high for the column tests and low for the core test.
Date: 1995
Creator: Brink, Susan E.; Blake, Rolland & Marozas, Dianne
Object Type: Report
System: The UNT Digital Library
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 10, Ed. 1, June 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 10, Ed. 1, June 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: June 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 12, Ed. 1, August 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 12, Ed. 1, August 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: August 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 49, No. 4, Ed. 1, December 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 49, No. 4, Ed. 1, December 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: December 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 49, No. 2, Ed. 1, October 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 49, No. 2, Ed. 1, October 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: October 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 6, Ed. 1, February 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 6, Ed. 1, February 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: February 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 11, Ed. 1, July 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 11, Ed. 1, July 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: July 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 5, Ed. 1, January 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 5, Ed. 1, January 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: January 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 7, Ed. 1, March 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 7, Ed. 1, March 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: March 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 49, No. 1, Ed. 1, September 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 49, No. 1, Ed. 1, September 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: September 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 49, No. 3, Ed. 1, November 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 49, No. 3, Ed. 1, November 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: November 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History
Hellcat News, (Kingman, Ariz.), Vol. 48, No. 8, Ed. 1, April 1995 (open access)

Hellcat News, (Kingman, Ariz.), Vol. 48, No. 8, Ed. 1, April 1995

Newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.
Date: April 1995
Creator: Twelfth Armored Division Association (U.S.)
Object Type: Newspaper
System: The Portal to Texas History