geothermometer


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geothermometer

[¦jē·ō·thər′mäm·əd·ər]
(engineering)
A thermometer constructed to measure temperatures in boreholes or deep-sea deposits.
(geology)
A mineral that yields information about the temperature range within which it was formed. Also known as geologic thermometer.
References in periodicals archive ?
An experimentally derived kinetic model for smectite-toillite conversion and its use as a geothermometer.
Karingithi [24] believed that using Na-K geothermometer is not appropriate for waters with high calcium concentration and reservoir temperature of less than 150[degrees]C and high concentrations of magnesium lead to unusual high temperatures in Na-K-Ca-Mg geothermometer.
1993, An empirical oxygen- and hydrogen-isotope geothermometer for quartz-tourmaline and tourmaline-water: Geochimica et Cosmochimica Acta, v.
2](aq)-Q geothermometer and, specifically, the calibration proposed by Fournier (1977) due to the similarity of the rest of existing calibrates; ii) Geothermometries based on the Na/K ratio: Empirical calibration proposed by Ellis (1970) or Anorsson (1983), theoretical calibration calculated from thermodynamic data for albite and K-feldspar proposed by Michard (1983) and empirical calibration proposed by Michard (1990), since give the more consistent results with the proposed temperature by the geothermometers based on the dissolved silica; iii) Geothermometry based on the Na-K-Ca relation: Empirical calibration proposed by Fournier and Truesdell (1973).
A set of geothermometers with bent stems were placed beside the ridges at a soil depth of 10 cm.
Methods include a) geophysical techniques such as ambient seismic noise correlation and magnetotellurics with improved noise filtering, b) fibre-optic down-hole logging tools to assess subsurface structure, temperature and physical rock properties, and c) the development of new tracers and geothermometers.
Aquifer temperatures of the immatured waters from hydrogeochemical viewpoint are calculated as 105[degrees]C for KGW by different geothermometers.
It then reviews various igneous geothermometers and geobarometers, and examines the issue of disequilibrium.