This is an index file for Open File Report 97-5, "Mineral Potential
Assessment of Northern St. Louis county, Southeastern Koochiching
county, and Northeastern Itasca county, Minnesota.  The project
was headed by Val Chandler, Mark Jirsa, and G.B. Morey.  Geologic linework
was scanned and converted to vector format in the winter of 1997.
Conversion of I-power geophysical ascii files to ARCINFO grids was done
in April/May 1997 by Tim Wahl. All other digitizing and vectorizing
of geophysical data and manipulations of data was done by Joyce Meints
May-June, 1997.

updated: June 2006 - tew.

All ARCINFO related and generated files are in Projection: UTM, Zone 15, Datum: NAD83.

The following is a list of grids and files important to the project:

GRIDS
amgdrtp		=  total field aeromag. reduced to pole
		   (resampled at 50m cell,bilinear), clipped to project area

amgd1v		=  1st vertical derivative, aeromagnetic anomaly
		   (filtered, resampled at 50m cell,bilinear), clipped

amgd2v		=  2nd vertical derivative, aeromagnetic anomaly
		   (resampled at 50m cell,bilinear), clipped

grgd		=  Bouguer gravity anomaly
grgd2v		=  2nd vertical derivative, Bouguer gravity anomaly


COVERS
bgln		=  line cover of structural features ie, faults assoc. with bedrock
bglnmod		=  line cover of modified structural features for mineral potential map
bgpg		=  polygon cover of bedrock geology
bgpgmod		=  polygon cover of modified bedrock geology for mineral potential map
dhpt		=  point cover of drill hole locations
emln		=  line cover of airborne  magnetic and electromagnetic anomalies
grct		=  cartographic line cover of gravity model cross sections
grln		=  line cover of Bouguer gravity contour intervals in 2 mgal
		   increments
grln2v		=  2nd vert. deriv. Bouguer gravity contour intervals in .2 mgal
		   increments
grpt		=  point cover of gravity station locations
mdct		=  line cover of seismic line locations (cartographic layer)
mdln		=  line cover of magnetic depth to bedrock contours
mdpg		=  polygon cover of magnetic depth to bedrock
mdpt		=  point cover of Werner deconvolution solution locations (magnetic depth data)
mpln		=  line cover of modified airborne  magnetic and electromagnetic anomalies
mppgmgs		=  polygon cover of mineral potential areas given by MGS
mppgdnr		=  polygon cover of mineral potential areas estimated from DNR data
mppt		=  point cover of drill hole or outcrop localities of anomalous
		   mineral values
ocpg		=  polygon cover of bedrock outcrops
papg		=  polygon cover of the project area outline
wdptg		=  point cover of Werner deconvolution solutions for gridded data
wdptp		=  point cover of Werner deconvolution solutions for profile data

AMLS
am1v.aml	=  plots 1st vert. deriv. aeromag. (grayshades)
am2v.aml	=  plots 2nd vert. deriv. aeromag. (grayshades)
amrtp.aml	=  plots total field aeromag. reduced to pole (color)
bg.aml		=  plots bedrock geology polygons with outcrop, drillhole and
		   gravity model xsection locations
dh.aml		=  plots drill holes and outcrop locations
gr.aml		=  plots gravity line contours
md.aml		=  plots magnetic depth to bedrock lines
mdpg.aml	=  plots magnetic depth to bedrock polygons with outcrops and
		   Werner deconvolution locations/values
mp.aml		=  plots mineral potential assessment map
wd.aml		=  plots the Werner deconvolution solution points

SHADESETS AND REMAP FILES

aeromag.shd	=  rainbow shadeset for reduced to pole aeromagnetic data
colorrange.shd	=  grayshade shadeset for vertical derivative aeromagnetic data
amrtp.rmp	=  remap table for reduced to pole grid values
am1v.rmp	=  remap table for 1st vertical derivative grid values
am2v.rmp	=  remap table for 2nd vertical derivative grid values

PDFs OF HARDCOPY PLATES 1-9
plate1.pdf	=  total field magnetic anomaly reduced to pole
plate2.pdf	=  2nd vertical derivative total field magnetic anomaly reduced to pole
plate3.pdf	=  2nd vertical derivative of simple Bouguer anomaly
plate4.pdf	=  geophysical interpretation
plate5.pdf	=  drillhole location and outcrop database
plate6.pdf	=  bedrock geology
plate7.pdf	=  magnetic and gravity model cross-sections
plate8.pdf	=  depth to magnetic basement
plate9.pdf	=  mineral potential assessment

WERNER DIRECTORY
wgrnsol.txt	=  ASCII file explaining the format of the Werner decon. solution files
neitotwd	=  ASCII file of Werner deconvolution solutions from flight profile data
neigrdwd	=  ASCII file of Werner deconvolution solutions from gridded data

MODELS DIRECTORY
	explain.txt     =  ASCII file gives explanation for files included in each subdirectory
        saki_hlp.txt    =  help documentation for running SAKI
Subdirectories
	coonlkn		=  ASCII files for profile 1-1'
	coonlk		=  ASCII files for profile 2-2'
	mirrlkn		=  ASCII files for profile 3-3'
	mirrorlk	=  ASCII files for profile 4-4'
	linden		=  ASCII files for profile 5-5'
	sherrylk	=  ASCII files for profile 6-6'