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The Manto Type Limestone Replacement Deposits of Northern Mexico

Citation

Patterson, John Wilfred (1932) The Manto Type Limestone Replacement Deposits of Northern Mexico. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/M6P1-FT06. https://resolver.caltech.edu/CaltechTHESIS:12212017-085430771

Abstract

A study has been made of the principal manto type limestone replacement deposits of northern Mexico. Three of the districts, Los Lamentos and Santa Eulalia in Chihuahua, and Mapimi in Durango, are described in detail. The sedimentary rocks are correlated with the Texas Comanchean formations. The ore deposits are confined to certain beds of Upper Trinity and Lower Fredericksburg age. Data show that it is the physical and not the chemical properties of the limestone which make some beds more susceptible to replacement than others.

Folding and fissuring have been essential in localizing the ore deposits. Mantos have been found to occur, in general, in favorable beds at the crests of folds. The fissure zones are most pronounced in depth. The cross section of a deposit decreases upward from the apparent source although the diminution is not constant. Mantos have yielded most of the ore in the upper deposits; chimneys become more important in depth. The analyses of sections of an ore body are uniform but the deposits show a gradual change in composition in a district. The ores are zoned vertically and laterally from the apparent source and are believed to have been deposited by magmatic waters. The principal deposits of a district were formed at one time. The metallic content of the bedded oxidized deposits is almost identical to that of the primary deposits from which they were derived. Dolomitization has occurred locally during oxidation.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:limestone deposits, Los Lamentos district, Santa Eulalia district, Mapimi district, Texas Comanchean formation, dolomitization
Degree Grantor:California Institute of Technology
Division:Geological and Planetary Sciences
Major Option:Geology
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Buwalda, John P.
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1931
Additional Information:Supplemental Files Information: Sketch map of the Los Lamentos District, Chihuahua, Mexico: Supplement 1 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Geologic map of Los Lamentos Mountain and vicinity, Chihuahua, Mexico: Supplement 2 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1930. Composite plan and section of the Erupcion-Ahumada ore bodies: Supplement 3 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1928. Geologic map of the Mapimi District, Durango, Mexico: Supplement 4 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Composite plan of the ore bodies of the Ojuela Mine: Supplement 5 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1931. North-south composite section of the Ojuela Mine: Supplement 6 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1931. Vertical projection of the Cumbres ore body: Supplement 7 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Geologic map of the Santa Eulalia District, Chihuahua, Mexico: Supplement 8 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Map showing relation of ore-bodies to fissures in the Santa Eulalia District, Chihuahua, Mexico: Supplement 9 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1931. Composite plan of the ore-bodies of the Santa Eulalia District, Chihuahua, Mexico: Supplement 10 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1931. Composite vertical projection of West Mantos & West Potosi section: Supplement 11 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Composite vertical projection of East Mantos, east part of Potosi & Inglaterra sections: Supplement 12 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis). Date(s) Collected: 1929. Parcionera section: Supplement 13 from "The Manto Type Limestone Replacement Deposits of Northern Mexico" (Thesis).
Record Number:CaltechTHESIS:12212017-085430771
Persistent URL:https://resolver.caltech.edu/CaltechTHESIS:12212017-085430771
DOI:10.7907/M6P1-FT06
Related URLs:
URLURL TypeDescription
https://doi.org/10.22002/D1.672DOISupplement 1 in CaltechDATA: Sketch map of the Los Lamentos District, Chihuahua, Mexico
https://doi.org/10.22002/D1.673DOISupplement 2 in CaltechDATA: Geologic map of Los Lamentos Mountain and vicinity, Chihuahua, Mexico
https://doi.org/10.22002/D1.674DOISupplement 3 in CaltechDATA: Composite plan and section of the Erupcion-Ahumada ore bodies
https://doi.org/10.22002/D1.675DOISupplement 4 in CaltechDATA: Geologic map of the Mapimi District, Durango, Mexico
https://doi.org/10.22002/D1.676DOISupplement 5 in CaltechDATA: Composite plan of the ore bodies of the Ojuela Mine
https://doi.org/10.22002/D1.677DOISupplement 6 in CaltechDATA: North-south composite section of the Ojuela Mine
https://doi.org/10.22002/D1.678DOISupplement 7 in CaltechDATA: Vertical projection of the Cumbres ore body
https://doi.org/10.22002/D1.679DOISupplement 8 in CaltechDATA: Geologic map of the Santa Eulalia District, Chihuahua, Mexico
https://doi.org/10.22002/D1.680DOISupplement 9 in CaltechDATA: Map showing relation of ore-bodies to fissures in the Santa Eulalia District, Chihuahua, Mexico
https://doi.org/10.22002/D1.681DOISupplement 10 in CaltechDATA: Composite plan of the ore-bodies of the Santa Eulalia District, Chihuahua, Mexico
https://doi.org/10.22002/D1.682DOISupplement 11 in CaltechDATA: Composite vertical projection of West Mantos & West Potosi section
https://doi.org/10.22002/D1.683DOISupplement 12 in CaltechDATA: Composite vertical projection of East Mantos, east part of Potosi & Inglaterra sections
https://doi.org/10.22002/D1.684DOISupplement 13 in CaltechDATA: Parcionera section
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10616
Collection:CaltechTHESIS
Deposited By: Benjamin Perez
Deposited On:18 Jan 2018 15:35
Last Modified:04 Oct 2019 00:19

Thesis Files

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PDF (Thesis) - Final Version
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117MB
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PDF (Sketch map of the Los Lamentos District, Chihuahua, Mexico) - Supplemental Material
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37MB
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PDF (Geologic map of Los Lamentos Mountain and vicinity, Chihuahua, Mexico) - Supplemental Material
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75MB
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PDF (Composite plan and section of the Erupcion-Ahumada ore bodies) - Supplemental Material
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52MB
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PDF (Geologic map of the Mapimi District, Durango, Mexico) - Supplemental Material
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35MB
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PDF (Composite plan of the ore bodies of the Ojuela Mine) - Supplemental Material
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75MB
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PDF (North-south composite section of the Ojuela Mine) - Supplemental Material
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58MB
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PDF (Vertical projection of the Cumbres ore body) - Supplemental Material
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24MB
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PDF (Geologic map of the Santa Eulalia District, Chihuahua, Mexico) - Supplemental Material
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66MB
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PDF (Map showing relation of ore-bodies to fissures in the Santa Eulalia District, Chihuahua, Mexico) - Supplemental Material
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30MB
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PDF (Composite plan of the ore-bodies of the Santa Eulalia District, Chihuahua, Mexico) - Supplemental Material
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121MB
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PDF (Composite vertical projection of West Mantos & West Potosi section) - Supplemental Material
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32MB
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PDF (Composite vertical projection of East Mantos, east part of Potosi & Inglaterra sections) - Supplemental Material
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37MB
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PDF (Parcionera section) - Supplemental Material
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9MB

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