@article{oai:nagoya.repo.nii.ac.jp:00006006,
 author = {Yihunie, Tadesse},
 journal = {The Journal of earth and planetary sciences, Nagoya University},
 month = {},
 note = {CHIME (Chemical Th-U-total Pb Isochron Method) age determinations were made on zircon and monazite grains from granitoid samples in the Negele area of southern Ethiopia. A 611±32 Ma zircon age was obtained from a syn-tectonic hornblende-biotite granite of the Alghe domain. A 453±29 Ma zircon age and a 459±16 Ma monazite age were also obtained from post-tectonic two-mica granites of the Alghe domain and the Kenticha domain, respectively. Since these ca. 450 Ma zircon and monazite ages coincide well, a significant post-tectonic granitic magmatism appears to have occurred in southern Ethiopia in early Paleozoic time.<br/> The new CHIME age results indicate at least two episodes of granitic magmatism in southern Ethiopia in the late Proterozoic to early Paleozoic, with a ca. 150 Ma interval between sys-and post-tectonic granitic emplacements, and have an important geochronological constraint on the evolution of the East African Orogen., 国立情報学研究所で電子化したコンテンツを使用している。},
 pages = {1--12},
 title = {Chemical Th-U-total Pb isochron ages of zircon and monazite from granitic rocks of the Negele area, southern Ethiopia},
 volume = {50},
 year = {2003}
}