In 1916, S.J. Shand first described the curious melt-rock phenomenon he called 'pseudotachylite' but did not rule out volcanic origin for the rock.
Hi 1916, S.J. Shand u sungule ku hlamusela hi melt-rock phenomenon leswi aswivula 'pseudotachylite' kambe anga kaneti leswaku kungava kuve na volcano leswaku kutava na ribye.