论文部分内容阅读
Cenozoic basalts widespread in eastern China constitute an important sector of the circum-Pacific Cenozoic basalt belt.Basalt samples were collected from Wudalianchi(Heilongjiang Pro-vince),Nushan(Anhui Province),Fangshan(Jiangsu Province),Zhuji(Zhejiang Province),andMingxi(Fujian Province).These basalts,for the most part,belong to the alkali basaltic series,andpartly to tholdites.A variety of inclusions commonly occurs in the rock-forming minerals of these basalts.Thephysicochemical conditions of basalt formation in different areas have been reviewed in special re-ference to the inclusion data.Our studies have shown that there is a dose relationship betweenthe features of the inclusions and the physicochemical conditions of basalt formation,which can,therefore,be regarded as a guide to the mechanism of basaltic petrogenesis.The results of researchin this aspect are presented in the present paper.
Cenozoic basalts widespread in eastern China constitute an important sector of the circum-Pacific Cenozoic basalt belt. Basalt samples were collected from Wudalianchi (Heilongjiang Pro-vince), Nushan (Anhui Province), Fangshan (Jiangsu Province), Zhuji (Zhejiang Province), andMingxi (Fujian Province). These basalts, for the most part, belong to the alkali basaltic series, andpartly to tholdites. A variety of inclusions generally occurs in the rock-forming minerals of these basalts.Thephysicochemical conditions of basalt formation in different areas have been reviewed in special re-ference to the inclusion data. Our studies have shown that there is a dose relationship betweenthe features of the inclusions and the physicochemical conditions of basalt formation, which can, therefore, be regarded as a guide to the mechanism of basaltic petrogenesis.The results of researchin this aspect are presented in the present paper.