| タイトル | Tectonic lineaments in the cenozoic volcanics of southern Guatemala: Evidence for a broad continental plate boundary zone |
| 本文（外部サイト） | http://hdl.handle.net/2060/19850011189 |
| 著者（英） | Dixon, T. H.; Baltuck, M. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.|Tulane Univ. |
| 発行日 | 1984-01-01 |
| 言語 | eng |
| 内容記述 | The northern Caribbean plate boundary has been undergoing left lateral strike slip motion since middle Tertiary time. The western part of the boundary occurs in a complex tectonic zone in the continental crust of Guatemala and southernmost Mexico, along the Chixoy-Polochic, Motogua and possibly Jocotan-Chamelecon faults. Prominent lineaments visible in radar imagery in the Neogene volcanic belt of southern Guatemala and western El Salvador were mapped and interpreted to suggest southwest extensions of this already broad plate boundary zone. Because these extensions can be traced beneath Quaternary volcanic cover, it is thought that this newly mapped fault zone is active and is accommodating some of the strain related to motion between the North American and Caribbean plates. Onshore exposures of the Motoqua-Polochic fault systems are characterized by abundant, tectonically emplaced ultramafic rocks. A similar mode of emplacement for these off shore ultramafics, is suggested. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 85N19499
JPL-9950-984
NASA-CR-175456
NAS 1.26:175456 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/157112 |
