The 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.

This Alberta diamond inclusion dataset includes electron microprobe analyses of garnet, clinopyroxene, olivine, ferropericlase and rutile inclusions from diamonds sampled by the Buffalo Head Hills kimberlite field. The data are compiled from Davies et al. (2004) and Banas (2006). Diamond inclusions are of particular research interest in diamond exploration and mantle petrology because they provide direct information about the chemical composition of upper and lower mantle and about the petrogenetic sources of diamonds in a given area/deposit.

Surveys include information related to diamond drilling.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Determines the location of Coal Titles within the Province of British Columbia. It is established under the authority of the Petroleum and Natural Gas Grid Regulation. It is defined by a set of UTM coordinates which approximate NAD 27 latitude and longitude positions. Groups are the second coarsest level of the Coal Grid and approximate 1:50,000 NTS map sheets. E.G. 103J08

Determines the location of Coal Titles within the Province of British Columbia. It is established under the authority of the Petroleum and Natural Gas Grid Regulation. It is defined by a set of UTM coordinates which approximate NAD 27 latitude and longitude positions. Units are the finest level of the Coal Grid. They are defined by UTM coordinates for their corners and the mid points of the four sides. A unit is the base building block for creating the Coal Grid. In a block there are 100 units, 10 rows by 10 columns, and numbered consecutively, starting in the southeast corner. The units are numbered 1 to 10, 11 - 20 etc. always reading from right to left. E.G. 082E05D007

This is the spatial view used by Mineral Titles Online (MTO) on the mineral, placer and coal viewers. The spatial view combines the polygon information with attribute information for each title. Contains sub-surface title data in British Columbia for: - mineral claims, mining leases, mineral claim applications - placer claims, placer leases, placer claim applications - coal license applications, coal licenses, coal leases

Determines the location of Coal Titles within the Province of British Columbia. It is established under the authority of the Petroleum and Natural Gas Grid Regulation. It is defined by a set of UTM coordinates which approximate NAD 27 latitude and longitude positions. Mapsheets are the coarsest component of the grid and approximate 1:250,000 NTS map sheets. E.G. 093A

Determines the location of Coal Titles within the Province of British Columbia. It is established under the authority of the Petroleum and Natural Gas Grid Regulation. It is defined by a set of UTM coordinates which approximate NAD 27 latitude and longitude positions. Blocks are the second finest level of the coal grid. A block consists of 100 units divided into 10 rows by 10 columns. There are also 12 blocks in a group, comprising 3 rows by 4 columns and labelled A to L. E.G. 084E05L

Holds historical data for mineral and placer, claims and leases, as well as, coal license applications, licenses and leases within the Province of British Columbia. This layer is utilized by Mineral Titles Online title history on the mineral, placer and coal viewers, respectively.

A placer claim is a parcel of land located or granted for placer mining. A claim also includes any ditches or water rights used for mining the claim and all other things belonging to or used in the working of the claim for mining purposes. A placer claim is a rectangular plot of ground. All angles of a claim must be right angles, except in the case where a boundary line of a previously located claim is adopted as common to both locations. The length of a regular placer claim from post one to post two is 500 feet along a baseline. Co-discovery claims must not exceed 1250 feet each and single discovery claims must not exceed 1500 feet.Distributed from the [GeoYukon](https://yukon.ca/geoyukon) digital map data collection by [Yukon government](https://yukon.ca/maps) . Discover more digital map data and interactive maps at Yukon government's [Open Maps](https://metadata-yukon.hub.arcgis.com) collection.For more information: [Geomatics.Help@yukon.ca](mailto:Geomatics.Help@yukon.ca)