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The geology of Somaliland is very closely related to the geology of Somalia. Somaliland is a de facto independent country within the boundaries that the international community recognizes as Somalia. Because it encompasses the former territory of British Somaliland, the region is historically better researched than former Italian Somaliland. Somaliland is built on more than 700 million year old igneous and metamorphic crystalline basement rock.. These ancient units are covered in thick layers of sedimentary rock formed in the last 200 million years and influenced by the rifting apart of the Somali Plate and the Arabian Plate.
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The geology of Peru includes ancient Proterozoic rocks, Paleozoic and Mesozoic volcanic and sedimentary rocks, and numerous basins and the Andes Mountains formed in the Cenozoic.
The geology of Yukon includes sections of ancient Precambrian Proterozoic rock from the western edge of the proto-North American continent Laurentia, with several different island arc terranes added through the Paleozoic, Mesozoic and Cenozoic, driving volcanism, pluton formation and sedimentation.
The geology of California is highly complex, with numerous mountain ranges, substantial faulting and tectonic activity, rich natural resources and a history of both ancient and comparatively recent intense geological activity. The area formed as a series of small island arcs, deep-ocean sediments and mafic oceanic crust accreted to the western edge of North America, producing a series of deep basins and high mountain ranges.
The Maya Block, also known as the Maya Terrane, Yucatan Block, or Yucatan–Chiapas Block, is a physiographic or geomorphic region and tectonic or crustal block in the southernmost portion of the North American Plate.
References
- ↑ "Field Guide to Guatemalan Geology – Stanford Alpine Project 2004-2005" (PDF). 2005-12-18. Retrieved 2018-11-10.
- ↑ Bishop, William F. (2008). "Petroleum Geology of Northern Central America". Journal of Petroleum Geology. 3: 3–59. doi:10.1111/j.1747-5457.1980.tb01003.x.
- ↑ Rosenfeld, J. H. (1981). "Geology of the western Sierra de Santa Cruz, Guatemala, Central America: An ophi". Bibcode:1981PhDT.........7R.
{{cite journal}}: Cite journal requires|journal=(help) - ↑ Newhall, Christopher G. (1987). "Geology of the Lake Atitlán Region, Western Guatemala". Journal of Volcanology and Geothermal Research. 33 (1): 23–55. Bibcode:1987JVGR...33...23N. doi:10.1016/0377-0273(87)90053-9.
- ↑ Anderson, T.H.; et al. (1973). "Geology of the Western Altos Cuchumatanes, Northwestern Guatemala". GSA Bulletin. GeoScienceWorld. 84 (3): 805–826. doi:10.1130/0016-7606(1973)84<805:GOTWAC>2.0.CO;2.