  Identification_Information
    Citation
      Citation_Information
        Originator: Alberta Energy Regulator
        Originator: Alberta Geological Survey
        Originator: Rabbani, A.
        Originator: Morley, E.C.
        Publication_Date: 2026
        Title: Thermal Conductivity, Thermal Diffusivity, and Radiogenic Heat Production of Core Samples from the Precambrian Basement in Alberta (tabular data, tab-delimited format)
        Geospatial_Data_Presentation_Form: tabular digital data
        Series_Information
          Series_Name: Digital Data
          Issue_Identification: DIG 2026-0007
        Publication_Information
          Publication_Place: Edmonton, Alberta, Canada
          Publisher: Alberta Geological Survey
        Online_Linkage: https://ags.aer.ca/publications/all-publications/dig-2026-0007
    Description
      Abstract: This digital data release presents laboratory measured thermal conductivity, thermal diffusivity, and radiogenic heat production data for core samples from the Precambrian crystalline basement in Alberta. Thermal conductivity measurements were obtained for 42 Precambrian basement samples using two methods: the steady-state divided bar method and the transient optical scanning (thermal conductivity scanner) method.

Thermal conductivity and diffusivity measurements for some samples were conducted under both dry and water-saturated conditions and in multiple orientations to assess directional anisotropy. Directional thermal conductivity was measured using both the steady-state divided bar method and the transient optical scanning method, depending on samples conditions. Thermal diffusivity was measured for 18 samples analyzed using the optical scanning method. The divided bar method was used to measure thermal conductivity only under water-saturated conditions and does not provide thermal diffusivity measurements or thermal conductivity values under dry conditions.

Radiogenic heat production for 90 samples was estimated using standard empirical formulations based on uranium, thorium, and potassium concentrations derived from whole-rock geochemical analyses, and reflects substantial variability associated with basement lithology and tectonic domain.

Together, these measurements provide a comprehensive dataset capturing the effects of anisotropy, fluid saturation, and compositional variability on subsurface thermal properties. The dataset supports geothermal resource assessment, heat flow modelling, and regional to crustal scale thermal structure analyses in Alberta.

This work was completed under the Mineral Grant provided by the Government of Alberta, dated June 22, 2021.
      Purpose: To provide reliable measurements of thermal conductivity and thermal diffusivity, together with derived radiogenic heat production, for diverse rock types from Alberta’s Precambrian basement.
      Supplemental_Information: 
    Time_Period_of_Content
      Time Period Information
        Single Date/Time
          Calendar_Date: 2026
    Currentness_Reference: ground condition
  Status
    Progress: Complete
    Maintenance_and_Update_Frequency: None planned
  Spatial Domain
    Bounding Coordinates
      West_Bounding_Coordinate: -120
      East_Bounding_Coordinate: -110
      North_Bounding_Coordinate: 60
      South_Bounding_Coordinate: 49
  Keywords
    Theme
      Theme_Keyword_Thesaurus: ISO 19115 Topic Category
      Theme_Keyword: carbonate
      Theme_Keyword: crystalline rocks
      Theme_Keyword: drillcore
      Theme_Keyword: geochemical
      Theme_Keyword: geology
      Theme_Keyword: geothermal
      Theme_Keyword: precambrian
      Theme_Keyword: radiogenic heat production
      Theme_Keyword: thermal conductivity
      Theme_Keyword: thermal diffusivity
    Place
      Place_Keyword_Thesaurus: ISO 19115 Topic Category
      Place_Keyword: alberta
      Place_Keyword: canada
  Access_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.
  Point_of_Contact
    Contact_Information
      Contact_Organization_Primary
        Contact_Organization: Alberta Geological Survey
        Contact_Person: AGS Information Manager
      Contact_Position: AGS Information Manager
      Contact_Address
        Address_Type: mailing and physical
        Address: Alberta Energy Regulator
        Address: 2nd Floor, Twin Atria Building
        Address: 4999-98 Avenue NW
        City: Edmonton
        State_or_Province: Alberta
        Postal_Code: T6B 2X3
        Country: Canada
      Contact_Voice_Telephone: (780) 638-4491
      Contact_Facsimile_Telephone: (780) 422-1459
      Contact_Electronic_Mail_Address: AGS-Info@aer.ca
      Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.
Data_Quality_Information
  Attribute_Accuracy
    Attribute_Accuracy_Report: All attributes in this dataset are as received from the tests done at the labs or derived through subsequent interpretation. Measurements for thermal conductivity and thermal diffusivity and derived radiogenic heat production recorded with two decimals.
  Logical_Consistency_Report: The spatial locations of all samples are unique. In some cases, several samples were taken from drillcore from the same well, but at different depths, resulting in duplication of unique well identifiers (UWI) and geographic coordinates (longitude, latitude). Laboratory measurements of thermal conductivity and thermal diffusivity were obtained using steady-state and transient methods to characterize basement rocks from Alberta. Existing thermal property datasets for deep crystalline rocks are sparse. Radiogenic heat production estimates derived from whole rock U–Th–K concentrations mostly show lithology  and tectonic domain dependent variability consistent with petrographic observations and regional geological frameworks.
  Completeness_Report: Many basement-penetrating wells did not recover core, and recovered material was often too altered, fractured, or incomplete for sample-plug preparation. A larger proportion of available samples came from shallower intersections (<2 km) in the northeastern and north-central regions, where drilling activity has historically been more frequent. Fewer samples were recovered from deeper intersections, limiting direct representation of higher-temperature basement conditions in the dataset. Sample selection was therefore constrained primarily by availability of specimens and did not allow for systematic coverage of specific tectonic domains. All data records with sufficient information were selected from described sources. Null values are reported as -9999.
  Positional_Accuracy
    Horizontal_Positional_Accuracy
   Horizontal_Positional_Accuracy_Report: The locations of the oil and gas wells may be accurate to within millimetres depending on surveying standards at the time of drilling.
    Vertical_Positional_Accuracy
   Vertical_Positional_Accuracy_Report: Samples were collected based on core depth relative to the well’s kelly bushing. Core depth was referenced to the depth interval recorded on the core box.
  Lineage
    Source_Information
      Source_Citation
        Citation_Information
          Originator: Alberta Energy Regulator
          Originator: Alberta Geological Survey
          Originator: Morley, E.C.
          Originator: Rabbani, A.
          Publication_Date: 2026
          Title: Inorganic Whole-Rock Geochemistry of Samples from the Precambrian Basement in Alberta (tabular data, tab-delimited format)
          Geospatial_Data_Presentation_Form: tabular digital data
          Series_Information
            Series_Name: Digital Data
            Issue_Identification: DIG 2026-0001
          Publication_Information
            Publication_Place: Edmonton, Alberta, Canada
            Publisher: Alberta Geological Survey
          Online_Linkage: https://ags.aer.ca
   Source_Scale_Denominator: 
   Type_of_Source_Media: online
        Source Time Period of Content
          Time Period Information
            Single Date/Time
       Calendar_Date: 2026
     Source_Currentness_Reference: publication date
     Source_Citation_Abbreviation: DIG 2026-0001
     Source_Contribution: Uranium, thorium, and potassium concentrations from whole-rock geochemical analyses were used to calculate radiogenic heat production values reported in DIG 2026-0007
    Process_Step
   Process_Description: Sampling:
Core samples were obtained from boreholes that penetrated the Precambrian basement in Alberta. While the Western Canada Sedimentary Basin (WCSB) hosts hundreds of thousands of wells, only a few hundred extend into the crystalline basement. Sample selection was therefore constrained primarily by availability of specimens and did not allow for systematic coverage of specific tectonic domains. The depth to the top of the basement in Alberta varies significantly from outcrop at surface in the far northeast (Canadian Shield) to depths exceeding 4 km near the Cordilleran deformation front in the southwest. A larger proportion of available samples came from shallower intersections (<2 km) in the northeasteastern and north-central regions, where drilling activity has historically been more frequent. Fewer samples were recovered from deeper intersections, limiting direct representation of higher-temperature basement conditions in the dataset. Sample locations and slabs were selected by the authors of this publication. Cylindrical core plugs (1 inch or 1.5 inches in diameter) were cut from drillcore by AGS staff at the AER’s Core Research Centre, Calgary.

Thermophysical Properties:
Thermal conductivity (TC) of the rock samples was determined using two techniques: the steady-state divided bar method and the optical scanning method. Thermal diffusivity was measured using the optical scanning and transient plane source methods.

Divided Bar Method:
The divided bar method, applied at the University of North Dakota (UND), USA, was used to obtain directional steady-state thermal conductivity measurements. Samples were prepared as cubes or prisms with polished faces (<0.02 mm deviation). Prior to measurement, samples were dried, weighed, put under vaccuum, saturated, and weighed again to determine porosity. Thermal conductivity was measured along three orthogonal axes using copper disks, with petroleum jelly applied to improve thermal contact. All samples were fully saturated during measurement. Saturation was achieved by placing samples under vacuum for 24 hours, followed by submersion in water for an additional 24 hours; samples remained submerged until measurements were completed. Porosity was calculated from sample dimensions and mass measurements taken before and after saturation, with the mass increase used to compute pore water volume. During thermal conductivity measurements, samples were subjected to an axial pressure of 700 to 1000 psi.

Optical Scanning Method (TCS):
The optical scanning method (thermal conductivity scanner, TCS), at the German Research Centre for Geosciences (GFZ) was applied to samples under both dry and water-saturated conditions. This technique employs a moving linear heat source coupled with infrared sensors to record surface temperature variations, generating continuous high-resolution profiles of thermal conductivity and thermal diffusivity along the scanned surface. Prior to measurement, samples were oven dried at 60°C and subsequently vacuum-saturated for saturated measurements.
Measurements were repeated a minimum of three times on different sample surfaces or orientations. Calibration was performed using reference materials with known thermal conductivity at both ends of each scan line. Anisotropy was estimated from the ratio of maximum to minimum conductivity values measured across different directions. The spatial resolution of the scans is approximately 1 mm, and measurement uncertainty is estimated to be within ±5%.

Radiogenic Heat Production:
Radiogenic heat production (RHP) was estimated using standard empirical formulations, (e.g., Bucker and Rybach, 1996; Majorowicz et al., 2014), based on uranium, thorium, and potassium concentrations derived from whole-rock geochemical analyses published in AGS Digital Data 2006-0001.

References:
Bucker, C. and Rybach, L. (1996): Determination of heat production from gamma ray logs; Marine and Petroleum Geolology, v. 13, p. 373–375.

Majorowicz, J., Chan, J., Crowell, J., Gosnold, W., Heaman, L.M., Kück, J., Nieuwenhuis, G., Schmitt, D.R., Unsworth, M., Walsh, N. and Weides, S. (2014): The first deep heat flow determination in crystalline basement rocks beneath the Western Canadian Sedimentary Basin; Geophysical Journal International, 197(2), p. 731-747.
   Process_Date: 2025
  Data_Quality_Information: Thermal property measurements were conducted following established laboratory best practices to ensure accuracy, repeatability, and internal consistency across methods.

Divided bar method:
Samples were prepared with polished, parallel faces to ensure optimal thermal contact. Contact resistance was minimized using interface coupling material (petroleum jelly), and an axial load of approximately 700–1000 psi was applied during measurements. Samples were allowed to reach thermal equilibrium prior to data acquisition, and thermal conductivity values were calculated from the average of 100 stabilized readings per measurement orientation. Instrument calibration was verified using certified reference materials, and results were evaluated to identify potential outliers.

Optical scanning method (thermal conductivity scanner, TCS):
Measurements were performed under both dry and water-saturated conditions, with a minimum of three scan lines acquired per sample on different surfaces or orientations where possible. Calibration against certified reference materials was performed for each scan line. Measurement accuracy is within ±5%, with reproducibility typically better than ±1%.

Despite the implementation of rigorous QA/QC procedures, several limitations should be considered when interpreting the dataset:
• Some foliated samples developed fractures during preparation or testing and were excluded from anisotropy analyses where necessary.
• Measurement orientations (A, B, and C) used for directional anisotropy analyses are relative and are not geographically referenced.
• Laboratory vacuum saturation approximates pore fluid effects but does not fully replicate in situ pressure, temperature, or fluid chemistry conditions.
• In very low porosity crystalline rocks, Archimedes based density and porosity measurements may be subject to increased uncertainty, as small mass differences associated with pore water saturation may approach the resolution limits of laboratory balances. 
• Measurements represent core scale properties and may not fully capture larger scale lithologic or structural heterogeneity.
• Mineralogical bounds derived from X-ray diffraction (XRD) analyses provide theoretical constraints on thermal properties but do not explicitly account for microstructural effects.
Spatial_Data_Organization_Information: 
Spatial_Reference_Information: 
Entity_and_Attribute_Information: Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: DIG 2026-0007_RHP_Precambrian_basement
Entity_Type_Definition: This dataset comprises radiogenic heat production estimated using standard empirical formulations based on uranium, thorium, and potassium concentrations measured from whole-rock major and trace element geochemical analyses of drillcore samples from Alberta’s Precambrian basement  beneath the Western Canada Sedimentary Basin (WCSB) as reported in AGS Digital Data 2026-0001.
Entity_Type_Definition_Source: Alberta Geological Survey

Attribute:
Attribute_Label: Sample_ID
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Unique sample number assigned to sample at time of collection.

Attribute:
Attribute_Label: Original
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Specifies if a sample is from the original batch or a re-run of select samples.

Attribute:
Attribute_Label: UWI
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Unique well identifier assigned by the Alberta Energy Regulator to a licensed wellbore as described in AER Directive 059, in 21-digit format.

Attribute:
Attribute_Label: Well_name
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: The official well name as it appears on the well licence.

Attribute:
Attribute_Label: Lat_NAD83
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Surface hole latitude, NAD83 datum, decimal degrees north.

Attribute:
Attribute_Label: Long_NAD83
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Surface hole longitude, NAD83 datum, decimal degrees east.

Attribute:
Attribute_Label: KB_el_m28
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Elevation of the well's kelly bushing in metres above sea level, Canadian Geodetic Vertical Datum of 1928.

Attribute:
Attribute_Label: Depth_m
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Core depth of the sample in metres relative to the well’s kelly bushing, in metres. Samples were taken over an interval of approximately 10 cm.

Attribute:
Attribute_Label: Domain
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Basement domain underlying the well surface location, interpreted from AGS SPE 119, AGS SPE 120, AGS SPE 122, and AGS
SPE 124.

Attribute:
Attribute_Label: Gen_Lith
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: General lithology of the sample as observed at time of sampling or during petrographic analysis.

Attribute:
Attribute_Label: Lab_name
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: The name of the laboratory performing the analyses.

Attribute:
Attribute_Label: Lab_file
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Code that the laboratory assigned to a group or batch of samples.

Attribute:
Attribute_Label: Mass_g
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mass of sample submitted to the laboratory, in grams.

Attribute:
Attribute_Label: K2O_pct
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Potassium oxide, in weight per cent, measured with lithium metaborate/tetraborate fusion and Inductively Coupled Plasma -
Optical Emission Spectrometry (ICP-OES) method.

Attribute:
Attribute_Label: U_FUS_ppm
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Uranium, in parts per million, measured with lithium metaborate/tetraborate fusion and Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) method.

Attribute:
Attribute_Label: Th_FUS_ppm
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Thorium, in parts per million, measured with lithium metaborate/tetraborate fusion and Inductively Coupled Plasma – Mass Spectrometry (ICP-MS) method.

Attribute:
Attribute_Label: K_wt_pt
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Potassium, in weight per cent, measured with lithium metaborate/tetraborate fusion and Inductively Coupled Plasma – Optical Emission Spectrometry (ICP-OES) method.

Attribute:
Attribute_Label: RHP_uW_m3
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Radiogenic Heat Production, in microwatts per cubic metre (µW/m3).

Attribute:
Attribute_Label: Publisher
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Organization that published the dataset.


Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: DIG 2026-0007_TC_TD_Precambrian_basement
Entity_Type_Definition: This dataset comprises laboratory measured thermal conductivity and thermal diffusivity data for drillcore samples from Alberta’s Precambrian basement beneath the Western Canada Sedimentary Basin (WCSB) using the steady-state divided bar and transient optical scanning methods. Thermal conductivity measurements cover the full sample set, while data for thermal diffusivity, dry and saturated conditions, and directional anisotropy are available for subsets of samples.
Entity_Type_Definition_Source: Alberta Geological Survey

Attribute:
Attribute_Label: Sample_ID
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Unique sample identifier.

Attribute:
Attribute_Label: UWI
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Unique well identifier assigned by the AER to a licensed wellbore as described in AER Directive 059, in 21-digit format.

Attribute:
Attribute_Label: Lat_NAD83
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Latitude, 10 TM, NAD83, central meridian -115º.

Attribute:
Attribute_Label: Long_NAD83
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Longitude, 10 TM, NAD83, central meridian -115º.

Attribute:
Attribute_Label: Geol_unit
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Name of geological unit.

Attribute:
Attribute_Label: KB_el_m28
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Elevation of the well's kelly bushing in metres above sea level, Canadian Geodetic Vertical Datum of 1928.

Attribute:
Attribute_Label: Depth_m
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Depth of the sample measured as core depth relative to the well’s kelly bushing, in metres (m).

Attribute:
Attribute_Label: Domain
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Basement domain underlying the well surface location, interpreted from AGS SPE 119, AGS SPE 120, AGS SPE 122, and AGS
SPE 124.

Attribute:
Attribute_Label: Gen_Lith
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: General lithology of the sample as observed at time of sampling or during petrographic analysis.

Attribute:
Attribute_Label: Method
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Method used for thermal property analysis.

Attribute:
Attribute_Label: Den_mt_gcc
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Matrix density of the sample, in grams per cubic centimetre (g/cm³).

Attribute:
Attribute_Label: Den_sat_gcc
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Saturated bulk density of the sample, in grams per cubic centimetre (g/cm³).

Attribute:
Attribute_Label: Poro_pt
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Porosity of the samples in, per cent and limit.

Attribute:
Attribute_Label: Temp_C
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Test temperature or room temperature, in degrees Celsius (°C).

Attribute:
Attribute_Label: TCs_M_W_mK
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mean saturated thermal conductivity, in watts per metre-kelvin, (W/m.K).

Attribute:
Attribute_Label: TCs_sd
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Standard deviation of saturated thermal conductivity, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCs_IF
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Inhomogeneity factor of saturated thermal conductivity, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCs_A_W_mK
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Saturated thermal conductivity in A direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCs_B_W_mK
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Saturated thermal conductivity in B direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCs_C_W_mK
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Saturated thermal conductivity in C direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCs_Ani_pt
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Directional anisotropy of the saturated thermal condcutivity, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_A_M
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mean dry thermal conductivity in A direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_A_M_sd
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Standard deviation of mean dry thermal conductivity in A direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_A_IF
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Inhomogeneity factor of mean dry thermal conductivity in A direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_B_M
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mean dry thermal conductivity in B direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_B_sd
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Standard deviation of mean dry thermal conductivity in B direction, in Watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_B_IF
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Inhomogeneity factor of mean dry thermal conductivity in B direction, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TCd_Ani_pt
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Directional anisotropy of the dry thermal condcutivity, in watts per metre-kelvin (W/m.K).

Attribute:
Attribute_Label: TDsM_mm2_s
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mean saturated thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: TDs_sd
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Standard deviation of saturated thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: TDs_IF
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Inhomogeneity factor of saturated thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: TDdM_mm2_s
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Mean dry thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: TDd_sd
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Standard deviation of dry thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: TDd_IF
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Inhomogeneity factor of dry thermal diffusivity, in square millimetres per second (mm2/s).

Attribute:
Attribute_Label: Publisher
Attribute_Definition_Source: Alberta Geological Survey
Attribute_Definition: Organization that published the dataset.
  Distribution_Information
    Distributor
      Contact_Information
        Contact_Organization_Primary
          Contact_Organization: Alberta Geological Survey
          Contact_Person: AGS Information Manager
        Contact_Position: AGS Information Manager
        Contact_Address
          Address_Type: mailing and physical
          Address: Alberta Energy Regulator
          Address: 2nd Floor, Twin Atria Building
          Address: 4999-98 Avenue NW
          City: Edmonton
          State_or_Province: Alberta
          Postal_Code: T6B 2X3
          Country: Canada
        Contact_Voice_Telephone: (780) 638-4491
        Contact_Facsimile_Telephone: (780) 422-1459
        Contact_Electronic_Mail_Address: AGS-Info@aer.ca
        Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.
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.
  Metadata_Reference_Information
    Metadata_Date: 20260506
    Metadata_Contact
      Contact_Information
        Contact_Organization_Primary
          Contact_Organization: Alberta Geological Survey
          Contact_Person: AGS Information Manager
        Contact_Position: AGS Information Manager
        Contact_Address
          Address_Type: mailing and physical
          Address: Alberta Energy Regulator
          Address: 2nd Floor, Twin Atria Building
          Address: 4999-98 Avenue NW
          City: Edmonton
          State_or_Province: Alberta
          Postal_Code: T6B 2X3
          Country: Canada
        Contact_Voice_Telephone: (780) 638-4491
        Contact_Facsimile_Telephone: (780) 422-1459
        Contact_Electronic_Mail_Address: AGS-Info@aer.ca
        Hours_of_Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.
    Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
    Metadata_Time_Convention: local time
    Metadata_Access_Constraints: none
    Metadata_Use_Constraints: none
