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Yukon Bedrock Geology MapThis update of the Yukon bedrock geology map builds upon the previous compilation by Gordey and Makepeace (1999, 2001). It includes new, detailed bedrock geology maps and regional compilations that have been published by the Yukon Geological Survey and the Geological Survey of Canada between 1999 and 2015, as well as some recent thesis works. A few of these maps were partially integrated into the digital dataset by Gordey and Makepeace (2003), but only as overlay to the 1999 compilation. A number of errors and omissions from the 1999 compilation of Gordey and Makepeace were also noted and corrected during compilation of this version of the map. The Yukon bedrock geology GIS dataset is regularly updated and can be downloaded from the Yukon Geological Survey’s website: www.geology.gov.yk.ca. Users are advised to consult the website regularly to ensure they are working with the latest version of the geodatabase or shape files. This update of the GIS dataset includes an expanded attribute structure (compared to the 1999 dataset) that facilitates searching of the geodatabase. This dataset requires the gscGeology font in order to properly label the bedrock polygons. This font file is packaged with the dataset when downloaded from geomaticsyukon.ca or geology.gov.yk.ca.The Yukon Geological Survey aims to provide users with the best available geoscience data for Yukon. Any revisions or additional geological information known to the user would be welcomed by the Yukon Geological Survey.Contact Person:Maurice Colpron ([email protected])Yukon Geology AttributesUNIT_1M1 million-scale map unit TEXT25UNIT_250K1:250 000-scale map unitTEXT25UNIT_ORIGOriginal map unit – at scale of capture (from published map)TEXT25SUPERGROUPSupergroupTEXT50GP_SUITEGroup (stratigraphic); Suite (plutonic, metamorphic); Complex; AssemblageTEXT50FORMATIONFormation (stratigraphic) and equivalentsTEXT50MEMBERMember (stratigraphic) and equivalentsTEXT50NAMEName of geological features such as plutons and batholithsTEXT50TERRANETerraneTEXT50TERR_LABELShort label for terrane (e.g. YT, AX, SM…)TEXT10TECT_ELEMTectonic element (e.g. Selwyn basin, Whitehorse trough)TEXT50ERA_MAXMaximum age – Era (timescale)TEXT50PERIOD_MAXMaximum age – Period/System (timescale)TEXT50EPOCH_MAXMaximum age – Epoch/Series (timescale)TEXT50STAGE_MAXMaximum age – Stage/Age (timescale)TEXT50AGE_MAX_MAMaximum age – numerical (in m.y.); derived from IUGS timescale for stratigraphic units OR from geochronological constraints for igneous rocks (date + error)NUMBERFLOATERA_MINMinimum age – Era (timescale)TEXT50PERIOD_ MINMinimum age – Period/System (timescale)TEXT50EPOCH_ MINMinimum age – Epoch/Series (timescale)TEXT50STAGE_ MINMinimum age – Stage/Age (timescale)TEXT50AGE_ MIN_MAMinimum age – numerical (in m.y.); derived from IUGS timescale for stratigraphic units OR from geochronological constraints for igneous rocks (date - error)NUMBERFLOATROCK_CLASSRock classification – sedimentary, metamorphic, plutonic, volcanicTEXT50ROCK_SUBCLRock subclassification – clastic, carbonate, chert…; Prefix – ‘m’ = metamorphic, v = volcanic, p = plutonic; Suffix – for igneous rocks: ‘mafic’, ‘inter’ = intermediate, ‘felsic’, ‘ultram’ = ultramaficTEXT50SHORT_DESCShort description for legend`TEXT254ROCK_MAJORMajor lithology(ies) within map unitTEXT100ROCK_MINORMinor lithology(ies) within map unitTEXT100ROCK_NOTESComment(s) for rock typeTEXT254REFERENCESource for polygon (publication – e.g. Tempelman-Kluit (1984)- GSC OF 1101)TEXT254LABEL_250KCode for 250k label using gscGeology fontTEXT12LABEL_1MCode for 1M label using gscGeology fontTEXT12COMMENTSVersion tracking notesTEXT250REDRed component of RGB colour for map info usersSHORTSHORTGREENGreen component of RGB colour for map info usersSHORTSHORTBLUEBlue component of RGB colour for map info usersSHORTSHORTMI_COLOURMap Info Colour SettingSHORTSHORT

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Wednesday, December 31, 1969 - 16:00
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