Thermal Conductivity of a Sand and Gravel Aquifer
This image was created by Jeff Markle of the Ministry of the Environment, Canada. This ternary diagram is constructed using both Grapher 4 and Surfer 8. The graph shows how the thermal conductivity of the solid portion of a sand and gravel aquifer changes with the composition of the aquifer material. The ternary diagram was created using the standard ternary plot in Grapher. The labels for the points on the ternary plot were added with a hidden x-y plot in Grapher. The colored contour of thermal conductivity was created in Surfer and pasted into Grapher.