2024-03-28T08:55:58Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02003764
2022-10-31T01:43:26Z
1642837622505:1642837957109:1642837978869
1642838403551:1642838406414
Geology of the Shar and Bulen areas, northwestern Ethiopia: Preliminary result
Meshesha, Daniel
Negussie, Aweke
Shinjo, Ryuichi
新城, 竜一
open access
Geological assessment of Shar and Bulen areas, northwestern Ethiopia indicates distinctive rock associations consisting of pelitic and pssamitic sediments that are interbedded with volcanic rocks and linear belt of mafic-ultramafic rocks. These volcano-sedimentary associations signify interchanges of sedimentary process and volcanic activity. Deposition is interpreted to have occurred within a marginal to shallower marine setting. The rocks were subjected to different phases of deformation and were metamorphosed to greenschist facies. Structural investigation indicates that the area underwent at least three phases of deformation (D_1-D_3) with pre-, syn- and post- kinematic granitic intrusions. The volcano-sedimentary association together with mafic-ultramafic rocks can be interpreted as an arc/continent suture zone.
紀要論文
琉球大学理学部
2005-03
eng
departmental bulletin paper
VoR
http://hdl.handle.net/20.500.12000/5379
http://hdl.handle.net/20.500.12000/5379
https://u-ryukyu.repo.nii.ac.jp/records/2003764
0286-9640
AN00250774
琉球大学理学部紀要
Bulletin of the College of Science. University of the Ryukyus
79
27
42
https://u-ryukyu.repo.nii.ac.jp/record/2003764/files/No79p27.pdf