Physical Sciences and Mathematics Commons^™

Examining The Relationship Between The Ereendavaa Metamorphic Core Complex And Duch Gol Basin In Northeast Mongolia In The Context Of The Mongol-Okhotsk Suture, Gavin Pirrie

Graduate College Dissertations and Theses

The Mongol-Okhotsk suture is integral in understanding the closure of the Mongol-Okhotsk Ocean, an ocean basin that once separated the Siberian craton from terranes of the Central Asian Orogenic Belt in southern Mongolia. However, the timing of closure and exact location of the suture are poorly known. This study examines two areas in northeastern Mongolia adjacent to the suture, the Ereendavaa Metamorphic Core Complex (EMCC) and the Duch Gol Basin, to aid in this understanding. The EMCC is an Early Cretaceous metamorphic core complex with an associated top-to-the-NW extensional detachment fault. Two sets of mineral lineations have previously been documented …