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The results of isotopic and clumped isotope analysis of all samples and standards are reported in Table 1 and plotted in Figure 5 and 6.  The spatial distribution of isotope values and temperature for DLR7 is plotted in Figure 5(a) and for DLR7i in Figure 5(b). Because the two sections were cut at different locations across the vein we don't expect a direct correlation between the two data sets. There are, however, similarities.  DLR7 has a distinct repeating assymetric saw-toothpattern along the growth direction that is most marked for $\delta^{18}O$ and $T(\Delta_{47})$. Four There are four  sections of the vein, vein  separated by the grey bands, can be identified, bands in  Figure 5(a). The bands mark step changes in $T(\Delta_{47})$ between adjacent samples. Each section is characterised by a rising temperature from a minimum of 40-50$^{\circ}$ 40$^{\circ}$  to a maximum of 90-95$^{\circ}$C. 90$^{\circ}$C.  This pattern is mirrored by antithetic changes in $\delta^{18}O$, falling from a maximum value of -8‰ to a minimum of -10‰_{VPDB}. The pattern of change in $\delta^{13}C$ is not so marked or consistent but is still apparent. For example between 10 and 25mm there is a positive covariation of $\delta^{18}O$ and $\delta^{13}C$ with an inverse correlation between 30 and 50mm. In contrast, the distinct pattern observed in section DLR7 is not readily apparent in section DLR7i. None-the-less it is still possible to identify sections where there is a distictive pattern of variation for both $T(\Delta_{47})$ and $\delta^{18}O$, Figure 5(b). Between 10 and 20mm, 55 and 60mm, and 65 and 75mm $T(\Delta_{47})$ rises whislt there is an inverse fall in the $\delta^{18}O$ value. Therange of temperature and oxygen isotope compositions for section DLR7i are similar for section DLR7. Between 25 and 50mm in section DLR7i there is an apparent breakdown in the inverse relationship between $T(\Delta_{47})$ and $\delta^{18}O$. In this region temperatures for the most part are greater than 70$^{\circ}$C whilst $\delta^{18}O$ remains constant and close to -9.8‰_{VPDB}. As with section DLR7 the carbon isotope data does not show a marked covariation with either temperature or oxygen isotope composition. The exception is in the section between 10 and 20mm where there is a marked inverse relationship between $\delta^{13}C$ and $\delta^{18}O$ with a 2‰ positive trend in carbon isotope values matched by a 2‰ negative trend in the oxygen isotope values.  Plotting the  bulk isotope compositions composition  of thetwo sections  vein shows the vein to have occupies  a restricted range of $\delta^{13}$C and $\delta^{18}$O values, Figure 5(a). $\delta^{13}$C values in particular lie between +1.5 to +3.7‰_{VPDB}. There is a similar restricted range in $\\delta^{18}$O values between -7 and -10‰_{VPDB}. There is a degree of structure beginning to emerge from the plot. plot \citep{Dennis_1984}.