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Table 1 Petrophysical properties—including porosity \(\phi\), matrix thermal conductivity \(\lambda _\text {m}\), heat production rate H, and matrix density \(\varrho _\text {m}\) —of the various rock units

From: Influence of depth, temperature, and structure of a crustal heat source on the geothermal reservoirs of Tuscany: numerical modelling and sensitivity study

Unit	\(\phi\) [–]	\(\lambda _\text {m}\) [W/(m K)]	H [µW/m³]	\(\varrho _\text {m}\) [g/cm³]
(a) Pliocene	0.05	1.9	0.23	–
(b) Ligurian	0.05	2.2	0.23 (7)^b	–
(c) TUaB	0.05	2.7	0.37 (16)^b	–
(d) Burano	0.02 (3)^b	4.7 (3)^b	0.16 (12)^b	2.94 (4)^a
(e) Farma	0.03 (5)^b	4.1 (12)^b	1.43 (39)^b	2.78 (10)^{a, b}

The values are obtained from ^aborehole cores, ^bcuttings, and/or ^clogs as outlined in the text. Values in italics indicate estimated values. Standard deviations are given in parenthesis. \(\lambda _\text {m}\) is given for surface conditions

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