A North Jersey man jailed on charges he sexually assaulted three girls between the early and mid-2000s has been accused by authorities of abusing a fourth girl who was under 13 years old. The Union County Prosecutor’s Office on Thursday announced additional charges against 62-year-old Ivan Calderon, of Elizabeth, who was arrested in 2022 on charges of multiple of sexual assaults between 2003 and 2015. Calderon was additionally given the charges of second-degree sexual assault on Thursday, county prosecutors said. In the three original cases, he is charged with both first and second-degree sexu…