Geology and Mineralization of the San Antonio Mine, Santa Eulalia District, Chihuahua, Mexico, by William Paxton Hewitt ... [A Dissertation.]. PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Geology and Mineralization of the San Antonio Mine, Santa Eulalia District, Chihuahua, Mexico, by William Paxton Hewitt ... [A Dissertation.]. PDF full book. Access full book title Geology and Mineralization of the San Antonio Mine, Santa Eulalia District, Chihuahua, Mexico, by William Paxton Hewitt ... [A Dissertation.]. by William Paxton Hewitt. Download full books in PDF and EPUB format.
![Geology and Mineralization of the San Antonio Mine, Santa Eulalia District, Chihuahua, Mexico, by William Paxton Hewitt ... [A Dissertation.]. PDF](https://books.google.com/books/content/images/frontcover/u65PQwAACAAJ?fife=w150-h200)
Author: William Paxton Hewitt
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
![Geology and Mineralization of the San Antonio Mine, Santa Eulalia District, Chihuahua, Mexico, by William Paxton Hewitt ... [A Dissertation.]. PDF](https://books.google.com/books/content/images/frontcover/u65PQwAACAAJ?fife=w80-h100)
Author: William Paxton Hewitt
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: William Paxton Hewitt
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 66
Get Book Here
Book Description
Author: William Paxton Hewitt
Publisher:
ISBN:
Category : Mining geology
Languages : en
Pages : 208
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Latin America
Languages : en
Pages : 140
Get Book Here
Book Description
Author: Library of Congress
Publisher:
ISBN:
Category : Catalogs, Union
Languages : en
Pages : 714
Get Book Here
Book Description
Author: Timothy George Walter
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 204
Get Book Here
Book Description
Author: Peter K. M. Megaw
Publisher:
ISBN:
Category : Geochemistry
Languages : en
Pages : 922
Get Book Here
Book Description
Santa Eulalia contains two separate, contrasting Pb-Zn-Ag deposits. The East Camp consists of a symmetrically zoned calc-silicate skarn with distal sulfide and tin-bearing orebodies; whereas the west Camp is composed of massive sulfide orebodies with minor proximal calc-silicate skarn and isolated intermediate calcic-iron skarns. Mineralization and alteration are zoned within each camp but do not overlap. Sulfide mineralization in both camps consists of pyrrhotite, sphalerite, galena, and pyrite with lesser amounts of arsenopyrite and chalcopyrite. The East Camp is apparently richer in zinc and copper than the West camp. Mineralization is temporally and spatially related to geochemically identical felsite intrusions which apparently have a common source. Mineralizing fluids followed these felsites through a thick section of evaporites and organic-rich shaly limestones into clean, homogeneous, relatively undeformed, limestone hosts. West Camp mineralization occurs along an interconnected network of vertically discontinuous tight fissures and sill contacts, whereas East Camp mineralization is located along vertically throughgoing faults and dike contacts. strata-bound, but not stratiform, mantos extend off discordant chimneys in both camps. Ore textures reveal that mineralization occurred primarily by limestone replacement. 21 Pressure-corrected primary fluid inclusion homogenization temperatures in fluorite range from 220 to 490 deg. C. Salinities are bimodal with high-salinity (>26.3 equivalent wt% NaCl) and low-salinity (1-12 equivalent wt% NaCl) populations. Mineralogical constraints indicate that the hydrothermal fluids were acid and reduced. Sulfur isotope analyses indicate that the ore fluids varied from -17 to +4 permil without correlation to iron-sulfide species, temperature, or salinity. Co-existing sulfides are commonly in isotopic disequilibrium. Sulfur isotopes from the West Camp are crudely zoned, but no consistent patterns exist in the East Camp. Oxygen and carbon isotope analyses of limestone wallrocks reveal a distinct isotopic alteration halo. A single analysis of gangue calcite from each camp indicates that the ore fluids contained non-carbonate-derived carbon and oxygen, possibly of magmatic origin. Metals were apparently transported as chloride complexes and deposited through coupled dissolution-precipitation replacement reactions. Most ore sulfur apparently came from diagenetic pyrite and sedimentary anhydrite, but some of the sulfur may have had a magmatic source. The metals probably came from the felsite parent magma and this magma may have also contributed fluids. Close similarities between Santa Eulalia and numerous other intrusion-related carbonate-hosted deposits in northern Mexico reinforce these interpretations.
Author: Allen M. Bassett
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
Get Book Here
Book Description
Author: William Paxton Hewitt
Publisher:
ISBN:
Category : Geology
Languages : es
Pages : 39
Get Book Here
Book Description
Author: Harrison Ashley Schmitt
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 16
Get Book Here
Book Description
