56f9c042-fd1f-4f28-adca-be5d721a82f5 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T08:29:17 creation ISO 19115 2016 Potential recharge to groundwater estimation, grid dataset, McBride Basalt Province 56f9c042-fd1f-4f28-adca-be5d721a82f5 This grid dataset is an estimation of the relative surface potential for recharge within the McBride Basalt Province. This process combined numerous factors together as to highlight the areas likely to have higher potential for recharge to occur. Soil permeability and surface geology are the primary inputs. Vegetation and slope were excluded from consideration, as these were considered to add too much complexity. Furthermore, this model does not include rainfall intensity – although this is known to vary spatially through average rainfall grids, this model is a depiction of the ground ability for recharge to occur should a significant rainfall event occur in each location. The relative surface potential recharge presented is estimated through a combination of soil and geological factors, weighting regions that are considered likely to have greater potential for recharge (e.g. younger basalts, vent-proximal facies, and highly permeable soils). Near-surface permeability of soil layers has been considered as a quantified input to the ability for water to infiltrate soil strata. It was hypothesised that locations proximal to volcanic vents would be preferential recharge sites, due to deeply penetrative columnar jointing. This suggestion is based on observations in South Iceland, where fully-penetrating columnar joint sets are more prevalent in proximal facies compared to distal facies in South Iceland (Bergh & Sigvaldson 1991). To incorporate this concept, preferential recharge sites are assumed to be within the polygons of vent-proximal facies as derived from detailed geological mapping datasets. Remaining geology has been categorised to provide higher potential recharge through younger lava flows. As such, a ranking between geological units has been used to provide the variation in potential recharge estimates. References Bergh, S. G., & Sigvaldason, G. E. (1991). Pleistocene mass-flow deposits of basaltic hyaloclastite on a shallow submarine shelf, South Iceland. Bulletin of Volcanology, 53(8), 597-611. doi:10.1007/bf00493688 {"type": "Polygon", "coordinates": [[[143.5, -18.9], [145.3, -18.9], [145.3, -17.7], [143.5, -17.7], [143.5, -18.9]]]} 143.5 145.3 -18.9 -17.7 Australia EARTH SCIENCES EFTF Exploring For The Future McBride Basalt Permeability Potential Recharge Published_External QLD Queensland UB Upper Burdekin Volcanic Province Web Service Download the data (tif) [357 KB] documentDigital Download the data (tif) [357 KB] ZIP Upper Burdekin Groundwater Raster Products WMS documentDigital Upper Burdekin Groundwater Raster Products WMS WMS Upper Burdekin Groundwater Raster Products WMTS documentDigital Upper Burdekin Groundwater Raster Products WMTS HTML Upper Burdekin Groundwater Raster Products WCS documentDigital Upper Burdekin Groundwater Raster Products WCS WCS