Description: <DIV STYLE="text-align:Left;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Outcrop exposures were digitized from many sources. These sources include historic maps and modern ortho-imagery and therefore is a compilation of data from different scales and variable location accuracy. In some cases, the polygons overlap due to multiple authors mapping in the same region. Some examples of the included work are as follows:</SPAN></SPAN></P><OL STYLE="margin:0 0 0 0;padding:0 0 0 0;"><LI STYLE="margin:0 0 0 48;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Fahrig’s (1961) data was published at approximately 1:1M scale with outcrop coordinate locations presumably through pace and compass techniques as well as air photographs. </SPAN></SPAN></P></LI><LI STYLE="margin:0 0 0 48;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Ramaekers’ unpublished 50K scale maps were created during the mid-70’s to early 80’s, presumably though pace and compass. Coordinate error is noted to be plus/minus 100 m in both directions. Although the outcrop polygon work was never published, the work led to many reports and publications including his Final Report 195 (1990) on the Athabasca Basin. </SPAN></SPAN></P></LI><LI STYLE="margin:0 0 0 48;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Harper’s 1982 ‘Geology of the Carswell Structure’ publication is produced at 50K scale. </SPAN></SPAN></P></LI><LI STYLE="margin:0 0 0 48;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Sibbald (</SPAN></SPAN><SPAN><SPAN>XXXX</SPAN></SPAN><SPAN><SPAN>) data was published at approximately 1 inch – 1 Mile. </SPAN></SPAN></P></LI><LI STYLE="margin:0 0 0 48;"><P STYLE="margin:0 0 0 0;"><SPAN><SPAN>Data from Bosman is more modern and collected through direct, onsite digitization with GPS capable instruments or though digitization of high-resolution air photographs and therefore accuracy is under 10 m. </SPAN></SPAN></P></LI></OL><P STYLE="margin:0 0 0 0;"><SPAN>This dataset will be improved upon as new information becomes available.</SPAN></P></DIV>
Copyright Text: Staff of the Saskatchewan Geological Survey.