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Title: The origin or the Archean Jardine iron formation-hosted lode gold deposit. Montana

Abstract

While there is considerable controversy concerning the origin of greenstone-hosted lode gold deposits of Archean age, there is a general consensus that these deposits are epigenetic. By contrast, iron formation-hosted lode gold deposits of Archean or Proterozoic age are considered either epigenetic or syngenetic. At least three genetic models have been proposed for these gold deposits: a syngenetic model involving simultaneous deposition of gold and the iron formation; an epigenetic model involving a later introduction of gold, arsenic, and sulfur into the iron formation; and a multistage model involving primary concentration of gold during deposition of iron formation followed by remobilization and reconcentration of gold during later events. The Jardine district is one of only three Archean lode gold districts in the United States that have reserves of greater than 300,000 ounces of gold. The other two are the South Pass-Atlantic City district, Wyoming, and the Ropes mine, Michigan. The fact that two of the three districts are in the Wyoming province suggests that the province might be an Archean gold province similar to Archean provinces in Canada. Placer gold was discovered near Jardine in 1866, and gold quartz veins were mined in the 1880`s at Mineral Hill. Exploration bymore » the Jardine Joint Venture has concentrated on the Jardine area, including Crevasse Mountain, where minor lode gold mineralization occurs in quartz-biotite schists. In order to complement previous geochemical, mineralogical, petrological and structural studies, the present study has concentrated on fluid inclusion, stable isotope, and electron microprobe studies with the intention of determining: (1) the source of the ore-forming fluids and gold, and (2) the genetic relationship between gold mineralization and iron formation, alteration and metamorphism.« less

Authors:
Publication Date:
Research Org.:
Ames Lab., IA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States); Department of the Interior, Washington, DC (United States); Geological Society of America, Boulder, CO (United States); Sigma Xi, the Scientific Research Society, New Haven, CT (United States)
OSTI Identifier:
10166768
Report Number(s):
IS-T-1553
ON: DE92018806; CNN: Grant G1184119; Grant G1194119; Grant G1104119; Grant 4491-90
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Thesis/Dissertation
Resource Relation:
Other Information: TH: Thesis (M.S.); PBD: 9 Jun 1992
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; MONTANA; GOLD; IRON; GEOLOGY; LITHOLOGY; METAMORPHIC ROCKS; MINERALIZATION; HISTORICAL ASPECTS; GEOCHEMISTRY; MINERALOGY; GEOLOGIC STRUCTURES; COMPILED DATA; GEOTHERMOMETRY; CHEMICAL COMPOSITION; DATA ANALYSIS; MINING; 580000; GEOSCIENCES

Citation Formats

Ping, Liu. The origin or the Archean Jardine iron formation-hosted lode gold deposit. Montana. United States: N. p., 1992. Web.
Ping, Liu. The origin or the Archean Jardine iron formation-hosted lode gold deposit. Montana. United States.
Ping, Liu. 1992. "The origin or the Archean Jardine iron formation-hosted lode gold deposit. Montana". United States.
@article{osti_10166768,
title = {The origin or the Archean Jardine iron formation-hosted lode gold deposit. Montana},
author = {Ping, Liu},
abstractNote = {While there is considerable controversy concerning the origin of greenstone-hosted lode gold deposits of Archean age, there is a general consensus that these deposits are epigenetic. By contrast, iron formation-hosted lode gold deposits of Archean or Proterozoic age are considered either epigenetic or syngenetic. At least three genetic models have been proposed for these gold deposits: a syngenetic model involving simultaneous deposition of gold and the iron formation; an epigenetic model involving a later introduction of gold, arsenic, and sulfur into the iron formation; and a multistage model involving primary concentration of gold during deposition of iron formation followed by remobilization and reconcentration of gold during later events. The Jardine district is one of only three Archean lode gold districts in the United States that have reserves of greater than 300,000 ounces of gold. The other two are the South Pass-Atlantic City district, Wyoming, and the Ropes mine, Michigan. The fact that two of the three districts are in the Wyoming province suggests that the province might be an Archean gold province similar to Archean provinces in Canada. Placer gold was discovered near Jardine in 1866, and gold quartz veins were mined in the 1880`s at Mineral Hill. Exploration by the Jardine Joint Venture has concentrated on the Jardine area, including Crevasse Mountain, where minor lode gold mineralization occurs in quartz-biotite schists. In order to complement previous geochemical, mineralogical, petrological and structural studies, the present study has concentrated on fluid inclusion, stable isotope, and electron microprobe studies with the intention of determining: (1) the source of the ore-forming fluids and gold, and (2) the genetic relationship between gold mineralization and iron formation, alteration and metamorphism.},
doi = {},
url = {https://www.osti.gov/biblio/10166768}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 09 00:00:00 EDT 1992},
month = {Tue Jun 09 00:00:00 EDT 1992}
}

Thesis/Dissertation:
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