MKED1: A new titanite standard for in situ analysis of Sm–Nd isotopes and U–Pb geochronology

Titanite (sphene) has great potential as a petrogenetic indicator and mineral geochronometer, as it can host high concentrations of a range of trace elements and it occurs in diverse rock types. In this paper we describe a natural titanite standard material that may be used to calibrate chemical and isotopic analysis of titanite of varying age and origin. Through comprehensive bulk analysis of mm-size crystal fragments and in situ microanalysis,...