Mine detail: Apex

Previously called 'Black Rock Nos. 1And 3'

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Location

Lat / long:

47.49923, -123.34376

Resource(M)

Primary:	Manganese
Secondary:	Iron
Ore:	Bementite, Rhodochrosite
Gangue:	Jasper, Pyrite

Production

Operation type:	Unknown
Production size:	None
Development status:	Occurrence

Geology

Host rock:	Metchosin
Host type:	Greenstone,Limestone
Associated rock:	Metchosin Volcanics
Associated type:	Greenstone
Structure:	The Lens And Contiguous Pillow Basalt Are Affected By Faulting In The Western Sector Of The Deposit. Two Crossfaults With Opposing Dips Intersect Here; One Offsets The Ore A Few Feet. A Fault Of Greater Displacement Borders The Mineralized Lens On The Northwest And Has Produced A Horizontal Offset Of More Than 25 Feet. Variations In The Basalt-Jasper Contact In Holes 2 And 4 Strongly Suggest Faulting At Depth.
Tectonic:	Active Margin (Leading Edge Of North American Plate)

References

MRDS	M700326
DEP	10047958
Reference	{Deposit:: WDMG BULL 37, P. 260}{Deposit:: USGS BULL 931-R, P. 455-456}{Deposit:: USBM RI 5530, P. 60-62, 77}
Reporter	Lawson, William A. (Evarts, Russell C.)