6533b823fe1ef96bd127e082
RESEARCH PRODUCT
Archean and Proterozoic ancestry in late Precambrian to early Paleozoic crustal elements of southern Turkey as revealed by single-zircon dating
Alfred KrönerA.m.c. ŞEngörsubject
geographyProvenancegeography.geographical_feature_categoryPaleozoicProterozoicArcheanGeochemistryGeologyCratonGondwanaPrecambrianPaleontologyGeologyZircondescription
Detrital zircon ages and paleontology limit the age of the oldest known metasedimentary rocks in the Menderes-Taurus block of southwestern Turkey to between 657 {plus minus}5 Ma and Middle Cambrian (ca. 533 Ma). A mylonitic granite, also part of the basement, yielded a date of intrusion of 543 {plus minus}7 Ma. The scatter of both detrital and xenocryst zircon ages between 612 {plus minus}6 and 3,140 {plus minus}2 Ma virtually precludes northeastern Africa and Arabia as their provenance, but is compatible with a source in the Angara craton of Siberia. These results suggest that the Pan-African evolution in the Middle East may have ended by Angara's collision with Gondwana in the Early Cambrian.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-01-01 | Geology |