HEADWATERS ECONOMICS GEOGRAPHIC DATA LIBRARY DOCUMENTATION
TITLE: 
Geodataset Name: 		NA_nickel_pot
Geodataset Type: 		SHAPE
Geodataset Feature: 		POINT

GENERAL DESCRIPTION: 
This data layer is a compilation of nickle occurrences that may be explored and/or mined in the future.  

US DATA SOURCE:  		U.S. Geological Survey
YT DATA SOURCE:			Yukon Geological Survey, Department of Energy, Mines and Resources
BC DATA SOURCE:			BC Geological Survey, Ministry of Energy, Mines and Petroleum Resources
			
US Scale of Original Source Maps:	Varies
US Date of Original Source Maps:	06/22/2006
YT Scale of Original Source Maps:	1:250,000
YT Date of Original Source Maps:	2002
BC Scale of Original Source Maps:	1:50,000
BC Date of Original Source Maps:	2006

GEODATASET EXTENT:  	Western North America
 
FEATURE ATTRIBUTE TABLES CODES AND VALUES: 
COM_MAJOR			Major commodities.
Nickel

DATA LINEAGE SUMMARY: The US data is a subset of the Mineral Resources Data System (MRDS).  MRDS is mineral resource occurrence data covering the world, most thoroughly within the U.S.  The dataset was downloaded from the USGS at http://tin.er.usgs.gov/mrds/mrds.zip and clipped to the study area boundaries.  The item COM_MAJOR Like '%Nickel%' and the item DEV_STAT = 'occurrence', 'prospect', and 'unknown' were selected to create this layer.   
The B.C. data is from the MINFILE which contains geological, location and economic information on over metallic, industrial mineral mines, deposits and occurrences. The BC data set was downloaded from http://www.em.gov.bc.ca/Mining/Geolsurv/MapPlace/geoData.htm and the item COMMOD_D1 = nickel and the item STATUS_D = 'showing prospect' and 'developed prospect'(with item PRODUCTN = 'N') were selected to create this layer.
The Yukon data were downloaded from http://www.geomaticsyukon.ca/data_download.html#geology.  The items MAIN_COMMO = '%Ni%' and STATUS_D = 'DEPOSIT', 'PROSPECT', 'SHOWING' were selected to create this layer.
The three data sets were then merged together.

MAP PROJECTION PARAMETERS 
PROJECTION 			ALBERS CONICAL EQUAL AREA
DATUM 				NAD83
UNITS 				METERS
SPHEROID 			GRS1980
PARAMETERS
1st standard parallel		29 30  0.000
2nd standard parallel		45 30  0.000
central meridian		-96 00  0.000
latitude of projection's origin	37 30  0.000
false easting (meters)		0.00000
false northing (meters)		0.00000

DATA SOURCES CONTACT(S): 
Name:			USGS
Address:		12201 Sunrise Valley Dr., Mail Stop 954
       Reston, VA  20192
Web site:		http://tin.er.usgs.gov/mrds
Contact Person:   Peter Schweitzer	
Phone:   		(703) 648-6533
Fax:			(703) 648-6252	
Email:   		pschweitzer@usgs.gov    

Name: 			Geomatics Yukon, Information & Communication Technologies Division
Address: 	  	
Contact:		 
Phone: 			(867) 667-8819
Fax:			
Email:   		geomatics@gov.yk.ca 		
Web site: 	  	http://www.geomaticsyukon.ca/data_download.htm 

Name:			BC Geological Survey, Mining and Minerals Division
Address:		5th Floor, 1810 Blanshard St.
			Victoria, BC V8W 9N3
Web site:		http://www.em.gov.bc.ca/Mining/Geolsurv/Minfile/default.htm 
Contact Person:   	Larry Jones	
Phone:   		(250) 952-0386
Fax:			(250) 952-0381	
Email:   		Larry.Jones@gov.bc.ca
          
HEADWATERS ECONOMICS CONTACT: 
Name:			Headwaters Economics Geographic Data Library
Abbr. Name:		HEGDL
Address:		Headwaters Economics
                        566 Highland St.
                        Helena, Montana 59601
Web site:		http://www.headwaterseconomics.org
Contact Person:   	Patty Gude	
Phone:   		(406)599-7425	
Email:   		patty@headwaterseconomics.org