Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study

The Portland Basin is a prime location to assess the feasibility of DDU-TES because natural geologic conditions provide thermal and hydraulic separation from overlying aquifers that would otherwise sweep away stored heat. Under the Portland Basin, the lower Columbia River Basalt Group (CRBG) aquifers contain brackish water (1,000-10,000 mg/L TDS), indicating low groundwater flow rates and poor connection with the overlying regional aquifer. Further, CRBG lavas tend to have comparatively low thermal conductivity, indicating that the 400-1,000 ft thick CRBG may be an effective thermal barrier to the overlying aquifer. A temporally and spatially limited previous study of a Portland Basin CRBG aquifer demonstrated that the injection of waste heat resulted in an increase in temperature by more than a factor of two, indicating a high potential for storing heat.

This data submission includes ASCII grid surfaces for the Portland and Tualatin Basins including a DEM of modern topography, the top of Columbia River Basalt (CRB), the base of CRB, and basement. It also includes three isochore (thickness) maps between these intervals. In addition, there is an ArcGIS attribute table for associated data points, a map of data types used to constrain the top of CRB, and cross-sections, all made using IHS Kingdom Suite, Petrosys PRO, ESRI ArcGIS, and Adobe Illustrator software.

Data e Risorse

Campo Valore
DOI 10.15121/1493810
accessLevel public
bureauCode {019:20}
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dataQuality true
identifier https://data.openei.org/submissions/3761
issued 2018-12-01T07:00:00Z
landingPage https://gdr.openei.org/submissions/1104
license https://creativecommons.org/licenses/by/4.0/
modified 2020-01-28T00:00:55Z
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programCode {019:006}
projectLead Arlene Anderson
projectNumber EE0008104
projectTitle Portland Deep Direct-Use Thermal Energy Storage (DDU-TES) Feasibility Study
publisher Portland State University
resource-type Dataset
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Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • arcgis
  • ckan
  • columbia-river-basalt-group
  • crbg
  • cross-section
  • ddu
  • ddu-tes
  • deep-direct-use
  • dem
  • digital-elevation-map
  • elevations
  • energy
  • feasibility
  • geo
  • geology
  • geospatial-data
  • geoss
  • geothermal
  • gis
  • map
  • national
  • north-america
  • oregon
  • outcrop
  • portland
  • portland-basin
  • seismic
  • structure-map
  • survey
  • tes
  • thermal-energy-storage
  • united-states
  • well-data
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
maintainer John Bershaw
maintainer_email bershaw@pdx.edu
metadata_created 2025-11-22T14:19:48.893109
metadata_modified 2025-11-22T14:19:48.893114
notes The Portland Basin is a prime location to assess the feasibility of DDU-TES because natural geologic conditions provide thermal and hydraulic separation from overlying aquifers that would otherwise sweep away stored heat. Under the Portland Basin, the lower Columbia River Basalt Group (CRBG) aquifers contain brackish water (1,000-10,000 mg/L TDS), indicating low groundwater flow rates and poor connection with the overlying regional aquifer. Further, CRBG lavas tend to have comparatively low thermal conductivity, indicating that the 400-1,000 ft thick CRBG may be an effective thermal barrier to the overlying aquifer. A temporally and spatially limited previous study of a Portland Basin CRBG aquifer demonstrated that the injection of waste heat resulted in an increase in temperature by more than a factor of two, indicating a high potential for storing heat. This data submission includes ASCII grid surfaces for the Portland and Tualatin Basins including a DEM of modern topography, the top of Columbia River Basalt (CRB), the base of CRB, and basement. It also includes three isochore (thickness) maps between these intervals. In addition, there is an ArcGIS attribute table for associated data points, a map of data types used to constrain the top of CRB, and cross-sections, all made using IHS Kingdom Suite, Petrosys PRO, ESRI ArcGIS, and Adobe Illustrator software.
num_resources 5
num_tags 35
title Elevation Grid for top Columbia River Basalt (CRBG) in the Portland Basin used in DDU Feasibility Study