Terranes of Mexico Revisited: A 1.3 Billion year Odyssey

@article{Keppie2004TerranesOM,
  title={Terranes of Mexico Revisited: A 1.3 Billion year Odyssey},
  author={J. D. Keppie},
  journal={International Geology Review},
  year={2004},
  volume={46},
  pages={765 - 794}
}
  • J. D. Keppie
  • Published 2004
  • Geology
  • International Geology Review
During the Precambrian and Paleozoic, Mexican terranes were either part of or proximal to Laurentia and Middle America (basements of Mesozoic Maya, Oaxaquia, and Chortis terranes that bordered Amazonia). Obduction of the Sierra Madre proximal terrane in the Late Ordovician was followed by Permo-Carboniferous amalgamation of all proximal terranes into Pangea. Middle Jurassic breakup of Pangea resulted in two continental terranes, Maya and Chortis, which were surrounded by small ocean-basin/arc… Expand
Paleomagnetic constraints on the kinematic relationship between the Guerrero terrane (Mexico) and North America since Early Cretaceous time
The North American Cordillera has been shaped by a long history of accretion of arcs and other buoyant crustal fragments to the western margin of the North American plate since early Mesozoic time.Expand
The Mesozoic successions of western Sierra de Zacatecas, Central Mexico: provenance and tectonic implications
Abstract Central Mexico was subject to active tectonics related to subduction processes while it occupied a position in western equatorial Pangea during early Mesozoic time. The subduction of theExpand
Evolution of the Guerrero composite terrane along the Mexican margin, from extensional fringing arc to contractional continental arc
The western margin of Mexico is ideally suited for testing two opposing models for the growth of continents along convergent margins: accretion of exotic island arcs by the consumption of entireExpand
Sandstone Provenance of the Arperos Basin (Sierra de Guanajuato, Central Mexico): Late Jurassic–Early Cretaceous Back-Arc Spreading as the Foundation of the Guerrero Terrane
Three paleogeographic scenarios have been proposed for the Mesozoic volcano-sedimentary successions that compose the Guerrero terrane, western Mexico. In the type 1 scenario, the Guerrero terrane isExpand
Cretaceous-Eocene magmatism and Laramide deformation in southwestern Mexico: No role for terrane accretion
In southwestern Mexico, Late Cretaceous to Early Tertiary deformation has been generally associated with the Laramide orogeny of the Cordillera. Several alternative models consider the deformation toExpand
Detrital Zircon Data from the Eastern Mixteca Terrane, Southern Mexico: Evidence for an Ordovician—Mississippian Continental Rise and a Permo-Triassic Clastic Wedge Adjacent to Oaxaquia
The eastern part of the Mixteca terrane of southern Mexico is underlain by the Petlalcingo Group (part of the Acatlán Complex), and has been interpreted as either a Lower Paleozoic passive margin, orExpand
Synthesis and tectonic interpretation of the westernmost Paleozoic Variscan orogen in southern Mexico: From rifted Rheic margin to active Pacific margin
Abstract Paleozoic rocks in southern Mexico occur in two terranes, Oaxaquia (Oaxacan Complex) and Mixteca (Acatlan Complex) that appear to record: (1) Ordovician rifting on the southern margin of theExpand
Rift-related basalts in the 1.2–1.3 Ga granulites of the northern Oaxacan Complex, southern Mexico: evidence for a rifted arc on the northwestern margin of Amazonia
Meta-igneous granulites with estimated c. 1.3−1.2 Ga protolith ages in the northern Oaxacan Complex of southern Mexico have bimodal protoliths: rift-related basalts (probably continental tholeiites)Expand
Palaeozoic palaeogeography of Mexico: constraints from detrital zircon age data
Abstract Detrital zircon age populations from Palaeozoic sedimentary and metasedimentary rocks in Mexico support palinspastic linkages to the northwestern margin of Gondwana (Amazonia) during theExpand
Geochemical and geochronological constraints on terrane definition in Mexico
Mexico has played host to a variety of igneous events since the Paleozoic, relating to the formation and subsequent breakup of the supercontinent Pangaea, as well as to intermittent subductionExpand
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Geologic, paleomagnetic, and faunal data indicate that Paleozoic terranes bordering the Iapetus and Rheic oceans may be classified as native or exotic with respect to adjacent cratons. NativeExpand
Guerrero terrane of Mexico: Its role in the Southern, Cordillera from new geochemical data
The Guerrero terrane makes up most of the western part of Mexico, is one of the largest terranes of the North American Cordillera, and is characterized by an Upper Jurassic-Lower CretaceousExpand
Second look at suspect terranes in southern Mexico
The boundary between the Xolapa and the Guerrero, Mixteca, and Juarez (or Oaxaca) terranes is a zone of normal faulting indicating north-south subhorizontal extension. Stratigraphic andExpand
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The Guerrero terrane of western Mexico is characterized by an Upper Jurassic-Lower Cretaceous volcanic-sedimentary sequence of arc affinity. The arc assemblage rests unconformably on partiallyExpand
Provenance of Mexican Terranes: Isotopic Constraints
Pb isotopes in Mesozoic and Cenozoic lavas and mineral deposits of eastern Mexico (Oaxaquia and Maya terranes) are highly radiogenic, in contrast to signatures from areas underlain by LaurentianExpand
Latest Proterozoic and Paleozoic southern margin of North America and the accretion of Mexico
The latest Proterozoic and Paleozoic southern margin of the North American continent is interpreted to have been located in what is now northern Mexico. The interpretation is based on (1) theExpand
Isotopic studies of the Acatlan Complex, southern Mexico: implications for Paleozoic North American tectonics
The Paleozoic Acatlan complex and Grenville-age Oaxaca terrane of southern Mexico have been suggested to be the southern continuation of North American orogenic systems. The Oaxaca terrane yieldsExpand
Carboniferous to Cretaceous assembly and fragmentation of Mexico
The geologic framework of Mexico evolved through the Phanerozoic assembly and fragmentation of crustal elements derived from Laurentia, Gondwana, and an intra-Pacific volcanogenic terrane. In middleExpand
A Grenvillian arc on the margin of Amazonia: evidence from the southern Oaxacan Complex, southern Mexico
Abstract The rocks in the southern Oaxacan Complex of Mexico form part of the basement of Oaxaquia, a terrane that underlies most of eastern Mexico. They have undergone granulite facies metamorphismExpand
Tethyan, Mediterranean, and Pacific analogues for the Neoproterozoic-Paleozoic birth and development of peri-Gondwanan terranes and their transfer to Laurentia and Laurussia
Abstract Modern Tethyan, Mediterranean, and Pacific analogues are considered for several Appalachian, Caledonian, and Variscan terranes (Carolina, West and East Avalonia, Oaxaquia, Chortis, Maya,Expand
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