File:Annual report (1920) (14592677138).jpg

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English:

Identifier: annualreport192000onta (find matches)
Title: Annual report
Year: 1891 (1890s)
Authors: Ontario. Dept. of Mines
Subjects: Mines and mineral resources
Publisher: Toronto
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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ncentration ofthe sulphides, tellurides and gold. Eeplacement of the rock is recognized by agradual transition to quartz and other later minerals. Native gold has beenobserved in contact with telluride, molybdenite, pyrite and copper pyrites. A section of high-grade ore from the Kirkland Lake mine shows quartz incontact with altered syenite. There is a concentration of pyrite and tellurideswith gold along the contact of quartz and rock and also in the quartz, which isfractured and carries fine-grained quartz and calcite in the fracture planes. Thereis abundant sericite and carbonate in the altered rock, A blackish mineral in verythin films is believed to be molybdenite. A sample of high-grade ore from KirklandLake mine containing 21,42 oz, of gold per ton, has the following partial com-position: Fe 1.65 per cent; MoSg 0.34 per cent,; S 0,65 per cent,; C 0.09 percent,; Te 0,10 per cent. This analysis shows the presence of both molybdenite andgraphite in the ore. Kirkland Lake Gold Area
Text Appearing After Image:
26 Department of Mines No. 4 WORKING PROPERTIES « Kirkland Lake AreaElliott Kirkland The Elliott Kirkland property lies to the west of the Kirkland Lake mine.It includes three claims, the princii)al of which is L. 1617 on which the shaft andmine buildinos are located. The main fracture zone has been traced westerlythrough low land from the Kirkland Lake mine. A vertical shaft has been sunk537 feet, with cross-cuts on five levels and drifts on the third, fourth and fifthlevels along fault planes. The rocks encountered are porphyry, lamprophyre, syen-ite, and reddish feldspathic quartzite. During the time of the strike at Kirklandlake the workings were allowed to fill with water and no further exploratory workhas since been done.

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Author Ontario. Dept. of Mines
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Volume
InfoField
1920
Flickr tags
InfoField
  • bookid:annualreport192000onta
  • bookyear:1891
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Ontario__Dept__of_Mines
  • booksubject:Mines_and_mineral_resources
  • bookpublisher:Toronto
  • bookcontributor:Gerstein___University_of_Toronto
  • booksponsor:University_of_Toronto
  • bookleafnumber:494
  • bookcollection:gerstein
  • bookcollection:toronto
Flickr posted date
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29 July 2014
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