作者: F. Spadin , D. Marti , R. Hidalgo-Staub , J. Rička , D. Fleitmann
关键词: Stalagmite 、 Accuracy and precision 、 Geology 、 Mineralogy 、 Radius 、 Fluid inclusions 、 Volume (thermodynamics) 、 Atmospheric temperature range 、 Bubble 、 Inclusion (mineral)
摘要: Abstract. Stalagmites are natural archives containing detailed information on continental climate variability of the past. Microthermometric measurements fluid inclusion homogenisation temperatures allow determination stalagmite formation by measuring radius stable laser-induced vapour bubbles inside inclusions. A reliable method for precisely is presented. The applied to samples which temperature known. An assessment bubble measurement accuracy and how this error influences uncertainty in determining provided. We demonstrate that nominal a single can be determined with an ±0.25 °C, if volume larger than 105 μm3. With method, we could measure proof-of-principle investigation 10–20 yr old inclusions taken from Milandre cave 9.87 ± 0.80 while mean annual surface temperature, case correlates well was 9.6 0.15 calculated actual at time, showing very good agreement. Formation formed during last 450 found range between 8.4 corresponds average temperature. Paleotemperatures thus within ±1.0 °C.