Discovery of coesite-bearing eclogites from the Northern Qinling and its significances

In recent years, coesite-bearing eclogites have been discovered at many sites in the eastern part of the Qinling-Dabie Orogene. However, these ultrahigh-pressure metamorphic rocks were found only in the southern Qinling Orogene before. In 1993, they were reported in the Qinling Group. Recently, coesites have been found in eclogites.