GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Naica consists of at least 10 mantos and 40 chimneys that have produced over 15 million tons of ore with 10% Zn, 13% Pb and 13 oz/ton Ag. The ore occurs in thick-bedded, folded Cretaceous limestone. Fractures and 26 Ma old felsite dikes with an initial strontium isotopic ratio of 0. 708 localize the mineralization. The mantos follow the dikes and have abundant early skarn with manganohedenbergite, calcic garnet, idocrase, quartz, calcite, wollastonite, schellite and later sulfides. The chimneys arise from the mantos and change from silicate-rich to silicate-free sulfide limestone replacements. Carbon, oxygen and sulfur isotope data on carbonates, silicates, sulfides and sulfates are compatible with a single evolving (magmatic? ) fluid.

Original languageEnglish (US)
Title of host publicationPreprint - Society of Mining Engineers of AIME
PublisherSoc of Mining Engineers of AIME
StatePublished - 1985

Fingerprint

Geochemistry
Geology
Silicates
Chimneys
Levees
Limestone
Ores
Calcite
Garnets
Strontium
Isotopes
Quartz
Carbonates
Sulfur
Carbon
Oxygen
Fluids
Sulfides

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ruiz, J., & Barton, M. D. (1985). GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO. In Preprint - Society of Mining Engineers of AIME Soc of Mining Engineers of AIME.

GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO. / Ruiz, Joaquin; Barton, Mark D.

Preprint - Society of Mining Engineers of AIME. Soc of Mining Engineers of AIME, 1985.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ruiz, J & Barton, MD 1985, GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO. in Preprint - Society of Mining Engineers of AIME. Soc of Mining Engineers of AIME.
Ruiz J, Barton MD. GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO. In Preprint - Society of Mining Engineers of AIME. Soc of Mining Engineers of AIME. 1985
Ruiz, Joaquin ; Barton, Mark D. / GEOLOGY AND GEOCHEMISTRY OF NAICA, CHIHUAHUA, MEXICO. Preprint - Society of Mining Engineers of AIME. Soc of Mining Engineers of AIME, 1985.
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