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File:Samoa geologic map.png

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English: Samoa geologic map, where Volcanic Series are labeled as: Po for Taputapu, Rll and Rlt for Leone (Rla is an ash cone and Rlc is a cinder cone), Pa for Alofau, Pol for Olomoana, Ppe for Pago, and Ppi for Pago Intra-Caldera. Pt are trachyte plugs and dikes, such as Matafao, Vatia, and Pioa ("the rainmaker"). Ra depicts beach sand and alluvium, while the green line is the national park boundary, and the dashed line is the boundary of the caldera.
Source National Park of American Samoa, Geologic Resource Evaluation Report, Natural Resource Report NPS/NRPC/GRD/NRR - 2008/25
Author National Park Service, US Dept. of the Interior


Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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