DIG_2007_0009.xmleng; CANutf8datasetAlberta Geological SurveyAGS Information Manager(780) 638-4491(780) 422-1918

Alberta Energy Regulator4th Floor, Twin Atria Building4999-98 Avenue NWEdmontonAlbertaT6B 2X3CanadaAGS-Info@aer.ca

8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.pointOfContact2016-03-29North American Profile of ISO 19115:2003 - Geographic information - Metadata (NAP-Metadata)ISO 19115-1.1point26022007-01-01publicationAlberta Energy and Utilities BoardoriginatorAlberta Geological SurveyoriginatorEccles, D.R.originatorAlberta Geological Survey

Edmonton Alberta, Canada

publishertableDigitalDigital DataDIG 2007-0009The first clue to the presence of possible diamond-bearing source rocks in northern Alberta was the discovery of a perfect octahedral diamond, estimated at about 0.83 carats in weight, by farm worker Einar Opdahl during 1958 in the Evansburg area of west-central Alberta. Since the Opdahl diamond, no new diamond finds were reported in northern Alberta until the 1990s, when several occurrences of alluvial diamond and diamondiferous kimberlite were discovered.The purpose of the digital dataset is to make publicly available two Alberta diamond datasets: 1. Confirmed and rumoured occurrences of diamond in alluvium This dataset includes information on 22 occurrences of diamond in alluvium. In the infancy stages of Canada's ongoing diamond play, the current focus on alluvial diamonds is to treat them like indicator-minerals; that is, alluvial diamonds occur proximal to, or have been relocated down-ice from diamondiferous source rocks. If that is the case, then diamond explorers take note because in northern Alberta some alluvial diamond occurrences cannot be related to known clusters of diamondiferous kimberlite. These alluvial diamonds of uncertain origin include: - the Caribou diamond, which is north (up-ice) of the Buffalo Head Hills kimberlite field; - the Whitecourt diamonds, which are separated from the Buffalo Head Hills kimberlite field by a physical boundary of younger Swan Hills Tertiary gravels; - the Calling lake diamond, which is in an area of known indicator-mineral anomalies with unique chemistries that favour the future discovery of a new diamondiferous kimberlite field in northeastern Alberta; and - finally, 23 micro- (<0.5 mm) and macro- (>0.5 mm) diamonds, including a clear 0.4 mm octahedral-shaped diamond, which were recovered north of Hinton, remain unexplained and may be of local origin. Knowledge about these alluvial diamond occurrences may, one day, help to locate a bedrock diamond deposit in Alberta, but their presence also poses an important question: Can Alberta alluvium contain economic concentrations of diamonds? 2. Occurrences of diamond in kimberlite/ultramafic rocks This dataset includes information on diamond occurrences from 32 host rock sources. To the end of 2006, 48 ultrabasic to kimberlite pipes have been discovered in three separate areas of northern Alberta, with 2 closely spaced pipes at Mountain Lake, 38 pipes at Buffalo Head Hills and 8 pipes at Birch Mountains. The best diamond results to date are from the Buffalo Head Hills kimberlite field, where 26 of the 38 pipes contain diamond. Mini-bulk samples from 3 of the 38 Buffalo Head Hills kimberlite occurrences have estimated diamond grades that range from 12 carats per hundred tonnes (cpht) to 55 cpht in kimberlite K252, with a particular breccia from this occurrence having an estimated grade of 85 cpht.completedAlberta Geological SurveyAGS Information Manager(780) 638-4491(780) 422-1918

Alberta Energy Regulator4th Floor, Twin Atria Building4999-98 Avenue NWEdmontonAlbertaT6B 2X3CanadaAGS-Info@aer.ca

8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.pointOfContactnotPlannedabandoned minesalluviumdiamondgeologykimberlitestrip miningultramaficstheme72e72l72m73d73e73l73m74d74e82g82h82i82j82o82p83a83b83g83h83i83j83o83p84a84b84g84halbertacanadaplaceotherRestrictionsotherRestrictionsAccess Constraints: Public Use Constraints: Acknowledgement of the Alberta Energy Regulator/Alberta Geological Survey as the originator/source of this information is required as described in the Open Government License - Alberta. Distribution Liability: The Alberta Energy Regulator/Alberta Geological Survey (AER/AGS) licenses this information under the Open Government License - Alberta. Any references to proprietary software in our documentation, and/or any use of proprietary data formats in our releases, do not constitute endorsement by the AER/AGS of any manufacturer's product.vectoreng; CANgeoscientificInformation-115.946615-111.01143549.02204157.196422ground condition1958-01-012006-01-01In EnglishfalseDetailed Entity and Attribute information is provided with the dataset, formatted as Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata.Alberta Geological SurveyAGS Information Manager(780) 638-4491(780) 422-1918

Alberta Energy Regulator4th Floor, Twin Atria Building4999-98 Avenue NWEdmontonAlbertaT6B 2X3CanadaAGS-Info@aer.ca

8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.distributorhttps://static.ags.aer.ca/files/document/DIG/DIG_2007_0009.zipNon-GIS DatadatasetThe information compiled in the spreadsheet was obtained from the results of previous work that had been conducted throughout the province of Alberta. Within the dataset there are two main worksheets, one for diamonds that had been reported in the alluvium and the other for diamonds that had been found in host rocks. In both of the worksheets several generic fields were captured describing characteristics of the diamonds reported, sample information, location information, etc. There are some fields within the two worksheets that were not captured and were either marked by leaving a cell blank or simply by using N/A.In terms of validating the data simple checks were carried out to make sure that basic characteristics of the dataset were accurate/intact. Since the dataset was fairly small the checks that were ran were fairly general and they resulted in a few minor edits that included spelling changes within the field names. The information compiled in the spreadsheet was obtained from the results of previous work that had been conducted throughout the province of Alberta. Within the dataset there are two main worksheets, one for diamonds that had been reported in the alluvium and the other for diamonds that had been found in host rocks. In both of the worksheets several generic fields were captured describing characteristics of the diamonds reported, sample information, location information, etc. There are some fields within the two worksheets that were not captured and were either marked by leaving a cell blank or simply by using N/A. The Alberta Diamond Occurrences dataset consits two worksheets within a excel spreadsheet containing data and information about the confirmed and rumored occurrences of diamond in alluvium and occurrences of diamond in kimberlite/ultramafic rocks. The data was later normalized and transferred into a database for the purpose of creating metadata. It should be noted that when the data was put into a database the appearance of the data changed but the nature of data remained intact.2006-01-01T00:00:00Metadata Access Constraints: none Metadata Use Constraints: noneThis metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadatastandard version FGDC-STD-001-1998 using the January 2013 version of the FGDC CSDGM to ISO 19115-2 transform.Alberta Geological SurveyAGS Information Manager(780) 638-4491(780) 422-1918

Alberta Energy Regulator4th Floor, Twin Atria Building4999-98 Avenue NWEdmontonAlbertaT6B 2X3CanadaAGS-Info@aer.ca

8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.custodian