Fig. 5From: Petrographic and geochemical analyses to characterise the source of built historical natural stones — a case study of the volcanic stones from historical quarries and Baoguosi Temple in the city of Ningbo, ChinaSimplified geological setting map of Ningbo and adjacent area. Location of the city of Ningbo indicating the geological epoch of the various formations and rocks. (Source: the authors, modified after BGMRZP 1989)Back to article page