Energy in South Australia and trap in the deeper heat. Due to the low permeability of granite, the hot rocks must undergo hydraulic fracturing and be stimulated to allow a flow of water through the system to produce energy. This heat is slowly conducted to shallower rocks near the surface. Petratherm propose developing the geothermal energy in the more permeable sedimentary rocks that overlay the hot granite, a process called Heat Exchange Within Insulator (HEWI). While somewhat cooler, in many cases they do not require hydraulic fracturing. It is estimated that one percent of geothermal energy shallower than five kilometres below the earth's surface
Between the Buttons of something really special and he was messing it up. But the way Brian appeared to not give a shit is exactly what the band was about." Outtakes from this photo session were later used for the cover and inner sleeves of the 1972 ABKCO compilation release "More Hot Rocks (Big Hits & Fazed Cookies)". The back cover of "Between the Buttons" is dominated by a six-panel cartoon accompanied by a rhythmic poem drawn by drummer Charlie Watts. When Watts asked Oldham what the title of the album would be, he told him it was "between the buttons", a term