1923 C. D. Broad Sci. Thought xii. 457 A sense-history and the physical world are both four-dimensional spatio-temporal wholes, and we must therefore talk of their geo-chronometry rather than their geometry.

1949 Mind 58 219 The alternative ‘geochronometries’ developed in mathematical physics convey little or no information about the ultimate nature of time.

1962 A. Grünbaum in H. Feigl & G. Maxwel Sci. Explan., Space & Time 405 We must ascertain whether and how empirical findings function restrictively so as to determine a unique geochronometry as the true account of the structure of physical space-time.

2006 E. Novak tr. T. Damour Once upon Einstein ii. 43 The notion of the squared interval between two events defines what one may call the chronogeometry (or, if one prefers, the geochronometry) of space-time.

1953 T. P. Kohman in Proc. Conf. Nucl. Processes Geol. Settings v. 19 The functional relationship between the age of a mineral which once contained an extinct natural radionuclide, and the present content of the radiogenic product, might provide an accurate geochronometry for the very early history of the earth.

1960 Bull. Geol. Soc. Amer. 71 223/1 Despite the major advances in the technique of geochronometry the establishment of the absolute age of the geological, i.e. paleontological, time scale has proceeded very slowly.

1993 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. (ed. 3) i. 6/2 Although stratigraphy is the basis of the primary discipline of geochronology, a small facet of palaeontological study has a bearing in what may be termed ‘geochronometry’.

2003 A. S. Cohen Paleolimnol. vi. 145 The radioactive isotope ²³⁸U produces spontaneous fission products at a sufficiently high, and known, rate, such that a count of these tracks forms the basis of geochronometry in minerals.