Read me: Heat Production of Scottish Granites The data contains estimates of Potassium (% weight), Uranium (PPM), and Thorium (PPM) concentrations from Scottish granites. The data also contains, the corresponding Heat Production (micro-watts per metre cubed) that was calculated from these radioelement concentrations. The data were collected using a GSII, hand-held gamma-ray spectrometer produced by GF-Instruments based in Brno, Chzech Republic. All data were taken in-situ, from suitably exposed granite outcrops. Where a measurement might be an underestimate, or overesimate, these are indicated in the notes section. The data are split into seperate CSV files for each of the granie plutons and named accordingly. The columns are labelled as: Date: indicates the date that the reading was taken. This was not recorded for all measurements but does not affect the results. Location: each location represented an individual measurement locality. Each of these localities generally has two or more measurements to confirm the readings. Grid Co-ordinates: these are either using the British National Grid or longitude/lattitude, and shows the precise location of each locality. Point: The different readings from each measurement locality. K(%): The concentration of potassium recorded from that reading U (PPM): The concentration of uranium recorded from that reading Th (PPM): The concentration of throium recorded from that reading DR (Ngy/hr): is the dose rate recorded measured in nano-grays per hour. Heat Production: is the calculated heat production based on the respective radio-element concentrations, and assumiung a granite density of 2.7g/cm3 Notes: Can describe features of the grantie around the measurement locality, and whether the local topgraphy could lead to the reading being overestimate or underestimated