A study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri

Author

Attilio Ligasacchi

Abstract

This thesis deals with the study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri.

The rocks outcropping in the quadrangle embrace Pre-Cambrian and Lower Paleozoic formations, the Potosi and Eminence being the most important formations with regard to the studied deposits.

The few structures present in the area of the vertical type and are more abundant in the southern part of the quadrangle.

Special emphasis is placed on the relationships between the barite, the associated sulfides, and the host rock.

Geometric and geochemical criteria are studied in detail and used to explain the local genesis of the ore deposits. Geometric evidences, either in the outcrops or in the drill cores, suggest the possibility of a syngenetic origin. The geochemistry of barium and the sulfides supports this mode of origin.

An attempt to solve the problem of the origin of the ore fluids was made. Both the supergene and hypogene theory are considered. More criteria appear to support the second one"--Abstract, page vi.

Advisor(s)

Amstutz, G. C. (Gerhardt Christian), 1922-

Committee Member(s)

James, William Joseph
Morgan, Ray E., 1908-1997
Legsdin, Adolph, 1899-1969

Department(s)

Geosciences and Geological and Petroleum Engineering

Degree Name

M.S. in Geology

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1959

Pagination

vi, 112 pages

Note about bibliography

Includes bibliographical references (pages 102-111).

Geographic Coverage

Washington County, Missouri

Rights

© 1959 Attilio Ligasacchi, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Geology -- Missouri -- Washington CountyGeology, stratigraphic -- CambrianGeology, stratigraphic -- PaleozoicGeochemical surveys -- Missouri -- Washington CountyOre depositsZinc

Thesis Number

T 1205

Print OCLC #

5926732

Electronic OCLC #

954168717

Recommended Citation

Ligasacchi, Attilio, "A study of the genesis of the Krueger zinc deposit and the near-by barite deposits of the Potosi quadrangle, Washington County, Missouri" (1959). Masters Theses. 5541.
https://scholarsmine.mst.edu/masters_theses/5541