Groundwater status and trends for the Columbia Plateau Regional Aquifer System, Washington, Oregon, and Idaho

Abstract

Lower left: Map showing select groups of wells with similar hydraulic response within portions of the Umatilla Basin, Oregon. Hydrographs showing the trend lines of spring median water levels for select groups of wells with similar hydraulic response in the Umatilla Basin, Oregon (East-West groups). (See figures 10 and 11B, respectively, in the report.) Center foreground: Map showing distribution of groundwater-level trends in the Columbia Plateau Regional Aquifer System for the period 1968-2009. Red circles indicate groundwater-level declines, yellow circles indicate little or no change in groundwater levels, and blue circles indicate groundwater-level rises. Circle size is representative of magnitude of change. (See figure 8 in the report.) Lower right: Map showing select groups of wells with similar hydraulic response within portions of the Palouse Slope and the Columbia Basin Ground Water Management Area, Washington. Hydrographs showing the trend lines of spring median water levels for groups of wells with similar hydraulic response in the vicinity of the Palouse Slope and the Columbia Basin Ground Water Management Area, Washington (Eastern Flowpath groups). (See figures 15 and 17, respectively, in the report) Background: Photograph of Frenchman's Coulee in the vicinity of Quincy, Washington.

Volcanic facies architecture of early bimodal volcanism of the NW Deccan Traps: Volcanic reservoirs of the Raageshwari Deep Gas Field, Barmer Basin, India

“…Volcanism associated with LIPs can span a diverse range of volcanic styles, compositions and resulting volcanic facies and volumes (Bryan et al., 2010; Jerram & Widdowson, 2005; Ross et al., 2005). Understanding the nature and evolution of LIP volcanism in space and time is critical for appraising interactions and linkages between volcanism, climate change and associated extinction events (Bond & Wignall, 2014; Sprain et al., 2019), associated sedimentation and ecosystem development (Ebinghaus et al., 2014; Jolley et al., 2012; Self et al., 2006), and also for the appraisal of resulting sub‐surface basin fill for hydrocarbons (Millett, et al., 2020; Schutter, 2003), aquifers (Buckley & Oliver, 1990; Burns et al., 2012), and increasingly carbon capture and storage potential (McGrail et al., 2011). In all global LIPs, extensive regions are either inaccessible due to poor outcrop or most commonly due to subsidence and burial by subsequent sedimentation.…”

A Columbia River Basalt Group Aquifer in Sustained Drought: Insight from Geophysical Methods

“…Numerous studies of CRBG aquifers have been conducted within the Columbia Basin to better understand their hydrogeology [9][10][11][12][13][14][15][16][17]. One of the most significant findings of these studies is the similarity of the hydrogeological characteristics, properties, and behavior of the CRBG aquifers across the region.…”

Understanding heat and groundwater flow through continental flood basalt provinces: insights gained from alternative models of permeability/depth relationships for the Columbia Plateau, USA

“…; Burns et al . ,b). Faults create flow barriers by juxtaposing thin aquifers with flow interiors; further, fault gouge consists largely of low‐permeability clay‐rich minerals.…”