joint pattern मीनिंग इन हिंदी

उदाहरण वाक्य

1. This volcanic centre formed in a subglacial to englacial environment between 130, 000 and 90, 000 years ago, as shown by the existence of distinctive, radial columnar joint patterns, a glassy to fine-grained matrix and stratigraphic relationships to overlying glacial till.