Geochemistry of Archean Metavolcanic Rocks from Kadiri Schist Belt, Andhra Pradesh, India |
| |
| Authors: | K. Satyanarayana J. Siddilingam Jagannath Jetty |
| |
| Affiliation: | aDepartment of Geology, Osmania University, Hyderabad - 500 007, India;bDepartment of Geology, N.B. Science College, Hyderabad - 500 002, India;cDepartment of Civil Engineering, Osmania University, Hyderabad - 500 007, India |
| |
| Abstract: | The basic volcanic group exposed in the Kadiri schist belt includes high Mg-basalt, basalt, basaltic andestite and dacite. The basalts are tholeiitic in composition and high Mg-basalts, basaltic andesites and dacites show calc-alkaline affinity. Major and trace element characteristics suggest that the volcanic suite has been derived from an initial tholeiitic magma which has given rise to an early basaltic type and a later calc-alkaline type of rocks. An island arc and active continental margin tectonic setting was inferred for these rocks. |
| |
| Keywords: | Kadiri schist belt geochemistry tholeiites calc-alkaline rocks tectonic setting |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
