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These maps were compiled using airborne magnetic data obtained from the National Aeromagnetic Database of Canada maintained by the Geological Survey of Canada. The GSC regional surveys were flown at 300m altitude and more recent surveys were flown at 90m altitude. Flight line spacing varies from the GSC regional coverage standard of 400mup to 3200m. Upward continuation was performed to estimate the magnetic field at 300m altitude for all surveys, then the data were merged together to generate a regional magnetic map.<\/SPAN><\/P><\/DIV><\/DIV>", "geometryType": null, "copyrightText": "Staff of the Saskatchewan Geological Survey. Individual grids: Southern Athabasca Basin, Eastern Athabasca Basin, Northwestern Athabasca Basin, Tazin Lake, Phelps Lake, Hanson Lake, Peter Lake, Upper Foster Lake, Cree Lake, Cree Lake South, North Hanson Lake. Compiled grids: Athabasca 200m, Canada 200m, Creighton\u2013Flin Flon 100m.", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "defaultVisibility": false, "extent": { "xmin": 127636.732277163, "ymin": 5414963.94293634, "xmax": 772436.732277163, "ymax": 6674363.94293634, "spatialReference": { "wkid": 2151, "latestWkid": 2957, "xyTolerance": 0.001, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -5120900, "falseY": -9998100, "xyUnits": 10000, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 } }, "hasAttachments": false, "htmlPopupType": "esriServerHTMLPopupTypeNone", "displayField": "", "typeIdField": null, "subtypeFieldName": null, "subtypeField": null, "defaultSubtypeCode": null, "fields": null, "geometryField": {}, "indexes": [], "subtypes": [], "relationships": [], "canModifyLayer": false, "canScaleSymbols": false, "hasLabels": false, "capabilities": "Map,Query", "supportsStatistics": false, "supportsExceedsLimitStatistics": false, "supportsAdvancedQueries": false, "supportedQueryFormats": "JSON, geoJSON, PBF", "isDataVersioned": false, "ownershipBasedAccessControlForFeatures": {"allowOthersToQuery": true}, "useStandardizedQueries": true, "advancedQueryCapabilities": { "useStandardizedQueries": true, "supportsStatistics": false, "supportsPercentileStatistics": false, "supportsHavingClause": false, "supportsOrderBy": false, "supportsDistinct": false, "supportsCountDistinct": false, "supportsPagination": false, "supportsLod": false, "supportsQueryWithLodSR": false, "supportsTrueCurve": true, "supportsQueryWithDatumTransformation": true, "supportsReturningQueryExtent": true, "supportsQueryWithDistance": true, "supportsSqlExpression": false, "supportsTimeRelation": true, "supportsSqlFormat": false, "supportsQueryAnalytic": false }, "supportsDatumTransformation": true, "dateFieldsTimeReference": null, "preferredTimeReference": null, "datesInUnknownTimezone": false, "hasMetadata": true, "isDataArchived": false, "archivingInfo": { "supportsQueryWithHistoricMoment": false, "startArchivingMoment": -1 }, "supportsCoordinatesQuantization": true, "supportsDynamicLegends": true }