Trans-Mexican Volcanic Belt
arc of volcanic mountains across central-southern Mexico
The Trans-Mexican Volcanic Belt (Spanish: Eje Volcánico Transversal), also known as the Transvolcanic Belt and locally as the Sierra Nevada (Snowy Mountain Range), is an active volcanic belt that covers central-southern Mexico. Several of its highest peaks have snow all year long, and during clear weather, they are visible to a large percentage of those who live on the many high plateaus from which these volcanoes rise.
History
The Trans-Mexican Volcanic Belt spans across central-southern Mexico from the Pacific Ocean to the Gulf of Mexico between 18°30'N and 21°30'N, resting on the southern edge of the North American plate.
This approximately 1000 kilometer long, 90–230 km broad structure is an east–west, active, continental volcanic arc; encompassing an area of approximately 160,000 km2. Over several million years, the subduction of the Rivera and Cocos plates beneath the North American plate along the northern end of the Middle America Trench formed the Trans-Mexican Volcanic Belt.
The Trans-Mexican Volcanic Belt is a unique volcanic belt; it is not parallel to the Middle American Trench, and many of the main stratovolcanoes are positioned obliquely to the general position of the arc. In addition to the physiographic complexities, igneous compositions vary—dominant subduction-related products contrast with intraplate geo-chemical signatures. The many intriguing aspects of the belt have spurred several hypotheses based on a typical subduction scenario: intra-plate leaky transform faults, mantle plumes, continental rifting, and jump of the eastward Pacific Rise. These features are partially related to the reactivation of early fault systems during the Trans-Mexican Volcanic Belt's evolution. The main brittle fault system's geometry, kinematics, and age define a complex array of what could be multiple factors affecting the deformation of the belt.
“Trans-Mexican Volcanic Belt” enters the record as arc of volcanic mountains across central-southern Mexico. Crown Archives preserves that source wording while asking what Trans-Mexican, Volcanic and Belt can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q278070. VIAF identifies the subject as 315129865. The Library of Congress control number is sh88005891. Authority coordinates are 19.017, -97.267. 3 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1000.
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This entry incorporates text from “Trans-Mexican Volcanic Belt” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.