Table 2.
Description of the Variables.
| Variable Label | Variable Name | Definition of the variable | Value Type | Optional |
|---|---|---|---|---|
| First Mining Company | company1 | Name(s) of the mining companies that operated the mine. The list is non-exhaustive and includes consecutive owners and co-ownerships. | Textual | |
| Second Mining Company | company2 | |||
| Third Mining Company | company3 | |||
| Fourth Mining Company | company4 | |||
| Fifth Mining Company | company5 | |||
| Sixth Mining Company | company6 | |||
| Name of the Mine | name | Name(s) given to the mine at any point in time. | Textual | ü |
| Town of the Mine | town | Town where the mine is located. | Textual | ü |
| Province of the Mine | province | Province where the mine is located. | Textual | |
| Latitude of the Mine | latitude | Latitude coordinate of the mine. The format is decimal degree at the precision of 6 digits or more. | Numerical | |
| Longitude of the Mine | longitude | Longitude coordinate of the mine. The format is decimal degree at the precision of 6 digits or more. | Numerical | |
| Start of Production | open1 | Years of production at the mine after 1949. close.i variables can indicate suspension or closure of operation: no distinction is made. In the identification of the years, production years were favored over years indicating the opening of closure of the mine. The variable takes the value of "open" when the mine is still in operation as of 2022. If the mine produced before 1949, it might be indicated under "information". | Date (YYYY) | |
| Suspension of Production | close1 | |||
| Reopening of Production | open2 | |||
| Second Suspension of Production | close2 | |||
| Re-Reopening of Production | open3 | |||
| Third Suspension of Production | close3 | |||
| All Commodities | commodityall | List of all the commodities produced by the mine. | Textual | |
| First Commodity | commodity1 | Individually listed commodities produced by the mine. They are listed in order of priority. This is the same as the "commodityall" variable. | Textual | |
| Second Commodity | commodity2 | |||
| Third Commodity | commodity3 | |||
| Fourth Commodity | commodity4 | |||
| Fifth Commodity | commodity5 | |||
| Sixth Commodity | commodity6 | |||
| Seventh Commodity | commodity7 | |||
| Eight Commodity | commodity8 | |||
| Information about the Mine | information | Comments and information about the mine. Examples include the labor conflict/workplace accident, scale of production (small/large), whether it is a ghost town today and facts about the agency of indigenous groups. | Textual | ü |
| Canadian historical mines Source | source1 | Indication (=1 if the source is used, =0 if the source is not used) that some information for this mine comes from the Historical Canadian Mines database [10]. | Categorical (dummy) | |
| Provincial Sources | source2 | Indication (=1 if the source is used, =0 if the source is not used) that some information for this mine is extracted from province- and territory-specific databases (Alberta14, British Columbia15, Manitoba16, New Brunswick17, Newfoundland-and-Labrador18,19, Northwest Territories20,21, Nova Scotia22,23, Nunavut24,25, Ontario26, Quebec27, Saskatchewan28 and Yukon29,30). | Categorical (dummy) | |
| Other Sources | source3 | Indication (=1 if the source is used, =0 if the source is not used) that some information for this mine is extracted from the external weblinks provided (link1, link2 and link3). | Categorical (dummy) | |
| External web sources | link1 | References for the secondary sources that have been consulted. It is often included tracking the sources of information and justify the decisions. | Website | ü |
| link2 | ||||
| link3 |