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Manganese Deposits of the Talamantes District Near Parral, Chihuahua, Mexico

Description: From abstract: The Talamantes district, 20 kilometers east of Parral in southern Chihuahua, has been the second largest producer of manganese ore in Mexico. Production, which started during World War I and has been more or less continuous since 1930, has totaled about 50,000 tons of ore with an average manganese content of 40 or 41 percent. The mines are on the Mesa de Talamantes, which is underlain by folded Cretaceous (?) limestone, overlain unconformably by gently dipping Tertiary rhyolite flows and tuff, volcanic breccia, agglomerate, and tuffaceous sandstone. Steeply dipping normal faults of northerly trend cut the rock and divide the mesa into a series of blocks.
Date: 1948
Creator: Wilson, Ivan F. & Rocha, Victor S.
Partner: UNT Libraries Government Documents Department

[Donkeys hauling water bottles]

Description: Photograph of two donkeys hauling water bottles in Juarez, Mexico. Byrd, Jr. took the photo while working just south of the Rio Grande River, and the water was presumably for the construction workers.
Date: 1915
Creator: Williams, Byrd M. (Byrd Moore), Jr.
Partner: UNT Libraries Special Collections

Puro Mexicano

Description: This volume of the Publications of the Texas Folklore Society contains popular Mexican folklore, including folk songs, folk tales, myths, legends, and other essays. The index begins on page 256.
Date: 1969
Creator: Texas Folklore Society
Partner: UNT Press

Genic Differentiation and Evolution in the Ground Squirrel Subgenus Ictidomys (Spermophilus)

Description: The genetic structure of 26 natural populations of three species (S. tridecemlineatus, S. mexicanus, and S. spilosoma) of the Ictidomys subgenus of ground squirrels was analyzed using chromosomal and electrophoretic techniques. Chromosomal variation was not observed in S. mexicanus, and only slight karyotypic variation was found in the other two species. Chromosomal evidence indicated hybridization between S. tridecemlineatus and S. mexicanus, placing these species within the classical definition of semispecies. Analysis of electrophoretic variation at 29 genetic loci indicated close genetic relationships between these species. Evolution in Ictidomys appears to be linked with Pleistocene events, and speciation appears to have occurred within the last 155,000 years.
Date: December 1975
Creator: Cothran, E. Gus, 1951-
Partner: UNT Libraries

Puro Mexicano

Description: This volume of the Publications of the Texas Folklore Society contains popular Mexican folklore, including folk songs, folk tales, myths, legends, and other essays. The index begins on page 256.
Date: 2017
Creator: Texas Folklore Society
Partner: UNT Press

Oral History Interview with Salvador Espino, September 26, 2007

Description: Interview with Fort Worth city councilman Salvador Espino as part of the North Texas Immigrant Rights Movement Oral History Project. The interview includes Espino's personal experiences about childhood and education, having a career a computer consultant, accountant, and attorney, volunteering for Catholic Diocese, and running for a seat representing District Two on the Fort Worth City Council. Espino also discusses the district demographics and priorities, the creation of Latinos Unidos, and his involvement in Fort Worth's 2006 immigrant rights march. The interview also includes an appendix with an article written by Espino.
Access: This item is restricted to UNT Community Members. Login required if off-campus.
Date: September 26, 2007
Creator: Moye, Todd & Espino, Salvador
Partner: UNT Oral History Program