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![Geochemical rock classification of samples from the Totoltepec pluton and other igneous suites of similar age (see caption of Fig. 7 for references). (A) Zr/TiO2-SiO2 diagram and (B) bivariate Nb/Y versus Zr/Ti diagram (after Winchester and Floyd, 1977; Pearce, 1996).]()
![Tectonic discrimination diagrams for rocks of the Totoltepec pluton and comparative igneous suites (see caption of Fig. 7 for references). (A) Th/Yb versus Ta/Yb diagram identifying mantle source and subduction components (modified after Pearce, 1982, 1996). Compositional fields: TH—tholeiitic; TR—transitional; ALK—alkaline; CA—calc-alkaline; SHO—shoshonitic. Compositions of normal mid-ocean-ridge basalt (N-MORB), enriched (E) MORB, and ocean-island basalt (OIB) are after Sun and McDonough (1989); (B) Th-Hf/3-Ta discrimination diagram after Wood et al. (1979). MM—mantle source; UC—upper crust; LC—lower crust; SZ—subduction component. (C) Yb versus Ta diagram for felsic rocks (after Pearce et al., 1984). VAG—volcanic arc granites; syn-COLG—syncollision granites; WPG—within-plate granites; ORG—ocean-ridge granites.]()
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![Schematic paleogeographic maps of the Acatlán-Caltepec area showing the rock sources that supplied detritus in the Otlaltepec Basin during Early and Middle Jurassic time. (A) During Early–Middle Jurassic time, the Piedra Hueca Formation was mainly derived from metamorphic rocks of the Oaxacan and Acatlán Complex. Detrital contributions from the Totoltepec and Cozahuico plutons, as well as from volcanic rocks emplaced during Pangea breakup, were subordinate. (B) During the latest Middle Jurassic, the Otlaltepec Formation was dominantly sourced by the Totoltepec pluton, with minor detrital contributions from the Oaxacan and Acatlán Complexes, the Cozahuico pluton, and volcanic rocks emplaced during Pangea breakup. We interpret this provenance change to reflect the rapid exhumation of the Totoltepec pluton along the W-trending, sinistral normal Matanza fault.]()
![(A) ɛNd(t) versus time plot comparing Sm-Nd isotopic data of the Totoltepec pluton (vertically hatched) and the Chichihualtepec Tecomate Formation metasedimentary rocks (diagonally hatched) with metasedimentary rocks from the Tecomate Formation type area (Yañez et al., 1991), rocks from the Oaxacan Complex (Ruiz et al., 1988), and Ordovician amphibolites from the Asis area (Murphy et al., 2006). Modern depleted mantle composition is from DePaolo (1988). (B) 147Sm/144Nd versus ɛNd(t) diagram for Totoltepec pluton rocks as a means to evaluate crustal contamination. Fields correspond to Sm-Nd data from the Cozahuico granite (this paper; Elías-Herrera et al., 2005; Torres et al., 1999), the La Carbonera stock (this paper), the Altos Cuchumatanes granitoids (Solari, 2012, personal commun.), the Tuzancoa Formation volcanic rocks (Rosales-Lagarde et al., 2005), and Ordovician amphibolites from the Asis lithodeme (Murphy et al., 2006) and the Olinalá area (Ortega-Obregón et al., 2010). For comparison, ɛNd(t) data for all samples are shown at t = 289 Ma. The black curves show trends for assimilation and fractional crystallization (AFC; DePaolo, 1981) in which crust (C—average composition of the Oaxacan Complex calculated from Ruiz et al., 1988) is assimilated by a basaltic parent magma (P—average composition of four most juvenile 306 Ma marginal ultramafic to mafic rocks of the Totoltepec pluton). Values for r (rate of assimilation relative to fractional crystallization) are indicated adjacent to AFC lines. For r ≥ 1, curves extend to values of F (fraction of remaining liquid) = 5; for r < 1, curves end at F = 0.1. Partition coefficients are from Arth (1976). Composition of depleted mantle is from DePaolo (1988). Gray arrows indicate trends for pure fractional crystallization of olivine (Ol), pyroxene (Px), hornblende (Hbl), plagioclase (Plag), apatite (Ap), zircon (Zrc), and K-feldspar (K-fsp).]()
![Chondrite-normalized rare earth element (REE) patterns (A, C, E) and normal mid-ocean-ridge basalt (N-MORB)–normalized multi-element plots (B, D, F) for Totoltepec pluton rocks and comparative igneous suites (see caption of Fig. 7 for references). Normalizing values are from Sun and McDonough (1989).]()
![Schematic geologic map of the Otlaltepec Basin showing the distribution of the Jurassic continental succession and its contact relationship with basement rocks of the Acatlán Complex and Totoltepec pluton (modified from Morán-Zenteno et al., 1993 and Kirsch et al., 2012). The location of the three stratigraphic columns measured in this work is reported in the map. PH—Piedra Hueca Creek; XI—Xiotillo Creek; MG—Magdalena Creek.]()
![Kernel density estimator plots (Vermeesch, 2012) showing the statistical distribution of zircon ages in representative samples from the Oaxacan Complex (A; Solari et al., 2014); the Acatlán Complex (B–D; Talavera-Mendoza et al., 2005; Morales-Gámez et al., 2008; Kirsch et al., 2012); the Ayú Complex (E; Helbig et al., 2012); the Totoltepec pluton (F; Kirsch et al., 2012); and the Cozahuico pluton (G; Elías-Herrera et al., 2005). Histograms (blue rectangles) are also shown for comparison. The open circles at the base of each plot represent the age for each analyzed zircon grain.]()
![Histograms (A, C) as well as Tera-Wasserburg diagrams (B, D) for U-Pb laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) zircon analyses of Totoltepec pluton rocks; mean 206Pb/238U age calculated by TuffZirc age algorithm of Ludwig and Mundil (2002). Black error bars are for the arguably syngenetic zircons, gray error bars for zircons likely to be xenocrystic, and white error bars indicate analyses ignored due to anomalously high errors. Also displayed are cathodoluminescence images of representative zircon crystals from dated rock samples.]()
![A 2σ error bar plot showing concordant 206Pb/238U ages of detrital zircons from the Chichihualtepec Tecomate Formation metasedimentary rocks. Data also include inherited zircons extracted from a granitoid dike intruding Chichihualtepec Tecomate Formation metapsammites as well as U-Pb sensitive high-resolution ion microprobe (SHRIMP) analyses of zircons separated from Chichihualtepec Tecomate Formation metaconglomerate granitoid cobbles (Keppie et al., 2004b). Diagonally hatched regions and histograms represent U-Pb age data from Totoltepec pluton rocks. Gray shaded histogram on the right-hand side shows the age distribution of all detrital zircon data featured in this diagram. Qz—quartz; Hbl—hornblende.]()
![Variation diagrams for selected major elements, high field strength trace elements, and ratios of Totoltepec pluton rocks and correlative Carboniferous–Permian igneous suites (labeled in part F). Division lines in K2O plot are from Le Maitre et al. (2002). Included in the comparison (from north to south) are geochemical data from (1) andesitic to basaltic lava flows from the 290–260 Ma Tuzancoa Formation in the Sierra Madre terrane (Rosales-Lagarde et al., 2005); (2) the 270 ± 3 Ma Cozahuico granite (this paper), which intrudes the N-S dextral transpressive Caltepec fault zone (CFZ); (3) the 275 ± 4 Ma La Carbonera stock, which intrudes the northern Oaxacan Complex (Solari et al., 2001; this paper); (4) ca. 272–251 Ma orthogneisses of the Chiapas Massif (Maya block; Weber et al., 2005); and (5) ca. 318–313 Ma plutons in the Altos Cuchumatanes Range, Guatemala (Maya block; Solari et al., 2010; Solari, 2012, personal commun.).]()
![Continued. facies metasedimentary rock (A13) of the Acatlán Complex, I) a rank 4 metapsammitic–metafelsitic lithic grain with quartz showing SGR structures from a greenschist-facies metasedimentary rock (A6) of the Acatlán Complex, J) a rank 2 metapsammitic–metafelsitic lithic grain with quartz showing BLG-related structures from a subgreenschist-facies metasedimentary rock (A28) of the Acatlán Complex, K) a metapsammitic–metafelsitic lithic grain of unknown metamorphic rank from a greenschist-facies metasedimentary rock (A12) of the Acatlán Complex, L) a phaneritic and polycrystalline fragment with quartz showing SGR-related structures from a quartz vein (A7) of the Acatlán Complex, M) a phaneritic and polycrystalline fragment dominated by GBM-related structures in quartz from a metatonalite (A16) of the Totoltepec pluton, N) a phaneritic and polycrystalline fragment with annealed quartz forming a granoblastic polygonal texture from an amphibolite-facies paragneiss (A22) of the Ayú Complex. Mineral abbreviations are from Siivola and Schmidt (2007). Ac, actinolite; Bt, biotite; Ca, calcite; Chl, chlorite; Czo, clinozoisite; Gln, glaucophane; Kfs, K-feldspar; Pl, plagioclase; Qtz, quartz; Ru, rutile; Wmca, white mica.]()
![(A) ɛNd(t) vs. time plot comparing Sm-Nd isotopic data of amphibolites and metasedimentary rocks from the Amarillo unit with those of other Carboniferous igneous and metasedimentary rocks. Modern depleted mantle composition is from DePaolo (1981). CHUR—chondritic uniform reservoir. (B) 147Sm/144Nd vs. ɛNd(t) and (C) 147Sm/144Nd vs. (Nb/La)cn diagrams for Amarillo unit amphibolites as a means to evaluate crustal contamination. Other Carboniferous igneous and metasedimentary rocks (from Ortega-Obregón et al., 2010a) are included for comparison. Fields correspond to Sm-Nd data from Pennsylvanian–Early Permian Totoltepec pluton gabbros (Kirsch et al., 2012), as well as Ordovician amphibolites from the Olinalá area (Ortega-Obregón et al., 2010b) and the Asis lithodeme (Murphy et al., 2006). For comparison, ɛNd(t) data for all samples are shown at t = 339 Ma. 147Sm/144Nd vs. ɛNd(t) plot shows a line at 147Sm/144Nd = 0.165, above which TDM ages are not considered (Stern, 2002).]()
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![(A) Tectonic reconstruction of west-central Pangea in the Late Carboniferous-Early Permian is modified from Kirsch et al. (2013). Purple dots represent the reconstructed locations of Carboniferous arc magmatism. Black dots represent locations of Permian arc magmatism. 1—Suwannee terrane granites from wells in South Georgia, Alabama, and Florida (Dallmeyer, 1989a; Mueller et al., 2014); 2—Deep Sea Drilling Project Leg 77 Holes 537 and 538A (Dallmeyer, 1984, 1988); 3—Wiggins Uplift (Dallmeyer, 1989a); 4—International Ocean Discovery Program Expedition 364 (this study); 5—Las Delicias Basin (Lopez, 1997; Lopez et al., 2001; McKee et al., 1999); 6—Atlos Cuchumatanes (Solari et al., 2009, 2010); 7—El Aserradero Rhyolite (Stewart et al., 1999); 8—Totoltepec pluton (Kirsch et al., 2013); 9—Cuanana Pluton and Honduras batholith (Ortega-Obregón et al., 2014). AC—Acatlan Complex (Mixteca terrane); CA—Colombian Andes; Cho—Chortis Block; Coa—Coahuila; M—Merida terrane; Oax—Oaxaquia; SM—Southern Maya (proto-Chiapas Massif Complex). (B) Schematic cross-section from across west-central Pangea. North-south closure of the Rheic Ocean between southern Laurentia (present-day Texas and Louisiana) and the Yucatán. Laurentia (brown) is dominated by Grenvillian-aged crust (1–1.3 Ga) and Appalachian crust (490–440 Ma, 420–350 Ma, and 330–270 Ma). Yucatán (purple) is dominated by Peri-Gondwanan crust (500–400 Ma). Plutonism dated within the Chicxulub crater in this study is shown in purple.]()
![Terrane map shows the Gulf of Mexico region modified from Dickinson and Gehrels (2009); Dickinson and Lawton (2001); Gehrels et al. (2011); Lawton et al. (2015); Ortega-Gutiérrez et al. (2018); Sedlock et al. (1993); Weber et al. (2012); and references therein. Oaxaquia outcrops are shown by white dots. Suwanee and Yucatán have Gondwanan tectonic affinity. Drillcores in north Florida and south Georgia, Maya Mountains, Deep Sea Drilling Project Leg 77, Altos Cuchumatanes, Las Delicias (Coahuila), Aserradero, Acatlán Complex eclogites, Totoltepec pluton, and this study are denoted as Carboniferous arc rocks. Famatinian (400–500 Ma) related ages are circled in gold. Pan-African (500–650 Ma) ages are circled in dark green. Grenvillian (0.9–1.3 Ga) ages are circled in black. MPFZ—Motagua-Polochic Fault Zone; EMT—East Mexican Transform. Detrital zircon records, intrusion, and metamorphic cooling ages are from Alemán-Gallardo et al. (2019); Dallmeyer (1984); Estrada-Carmona et al. (2012); Heatherington et al. (2010); Juárez-Zúñiga et al. (2019); Kirsch et al. (2013); Lopez (1997); Lopez et al. (2001); McKee et al. (1999); Middleton et al. (2007); Miller et al. (2007); Mueller et al. (2014); Ortega-Obregón et al. (2008); Schaaf et al. (2002); Solari et al. (2010); Steiner and Walker (1996); Vega-Granillo et al. (2007); Weber et al. (2005, 2007, 2009, 2012, 2018, 2019, 2020).]()
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1-20 OF 34 RESULTS FOR
Totoltepec Pluton
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Geochemical rock classification of samples from the Totoltepec pluton and o... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 8. Geochemical rock classification of samples from the Totoltepec pluton and other igneous suites of similar age (see caption of Fig. 7 for references). (A) Zr/TiO 2 -SiO 2 diagram and (B) bivariate Nb/Y versus Zr/Ti diagram (after Winchester and Floyd, 1977 ; Pearce, 1996 ).
Image
Tectonic discrimination diagrams for rocks of the Totoltepec pluton and com... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 9. Tectonic discrimination diagrams for rocks of the Totoltepec pluton and comparative igneous suites (see caption of Fig. 7 for references). (A) Th/Yb versus Ta/Yb diagram identifying mantle source and subduction components (modified after Pearce, 1982 , 1996 ). Compositional fields
Journal Article
Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 September 2012
GSA Bulletin (2012) 124 (9-10): 1607–1628.
...Figure 8. Geochemical rock classification of samples from the Totoltepec pluton and other igneous suites of similar age (see caption of Fig. 7 for references). (A) Zr/TiO 2 -SiO 2 diagram and (B) bivariate Nb/Y versus Zr/Ti diagram (after Winchester and Floyd, 1977 ; Pearce, 1996 ). ...
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Journal Article
Provenance analysis of Jurassic sandstones from the Otlaltepec Basin, southern Mexico: Implications for the reconstruction of Pangea breakup Open Access
Journal: Geosphere
Publisher: Geological Society of America
Published: 01 December 2016
Geosphere (2016) 12 (6): 1842–1864.
... Basin in southern Mexico. Whole-rock sandstone petrography integrated with chemical analysis of detrital-garnet and U-Pb detrital-zircon geochronology documents that the analyzed stratigraphic record was deposited during rapid exhumation of the Totoltepec pluton along the Matanza fault, which is a W...
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Schematic paleogeographic maps of the Acatlán-Caltepec area showing the roc... Open Access
in Provenance analysis of Jurassic sandstones from the Otlaltepec Basin, southern Mexico: Implications for the reconstruction of Pangea breakup
> Geosphere
Published: 01 December 2016
of the Oaxacan and Acatlán Complex. Detrital contributions from the Totoltepec and Cozahuico plutons, as well as from volcanic rocks emplaced during Pangea breakup, were subordinate. (B) During the latest Middle Jurassic, the Otlaltepec Formation was dominantly sourced by the Totoltepec pluton, with minor
Image
(A) ɛ Nd (t) versus time plot comparing Sm-Nd isotopic data of the Totoltep... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 11. (A) ɛ Nd (t) versus time plot comparing Sm-Nd isotopic data of the Totoltepec pluton (vertically hatched) and the Chichihualtepec Tecomate Formation metasedimentary rocks (diagonally hatched) with metasedimentary rocks from the Tecomate Formation type area ( Yañez et al., 1991 ), rocks
Image
Chondrite-normalized rare earth element (REE) patterns (A, C, E) and normal... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 10. Chondrite-normalized rare earth element (REE) patterns (A, C, E) and normal mid-ocean-ridge basalt (N-MORB)–normalized multi-element plots (B, D, F) for Totoltepec pluton rocks and comparative igneous suites (see caption of Fig. 7 for references). Normalizing values are from Sun
Image
Schematic geologic map of the Otlaltepec Basin showing the distribution of ... Open Access
in Provenance analysis of Jurassic sandstones from the Otlaltepec Basin, southern Mexico: Implications for the reconstruction of Pangea breakup
> Geosphere
Published: 01 December 2016
Figure 4. Schematic geologic map of the Otlaltepec Basin showing the distribution of the Jurassic continental succession and its contact relationship with basement rocks of the Acatlán Complex and Totoltepec pluton (modified from Morán-Zenteno et al., 1993 and Kirsch et al., 2012
Image
Kernel density estimator plots ( Vermeesch, 2012 ) showing the statistical ... Open Access
in Provenance analysis of Jurassic sandstones from the Otlaltepec Basin, southern Mexico: Implications for the reconstruction of Pangea breakup
> Geosphere
Published: 01 December 2016
., 2012 ); the Ayú Complex (E; Helbig et al., 2012 ); the Totoltepec pluton (F; Kirsch et al., 2012 ); and the Cozahuico pluton (G; Elías-Herrera et al., 2005 ). Histograms (blue rectangles) are also shown for comparison. The open circles at the base of each plot represent the age for each analyzed
Image
Histograms (A, C) as well as Tera-Wasserburg diagrams (B, D) for U-Pb laser... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 4. Histograms (A, C) as well as Tera-Wasserburg diagrams (B, D) for U-Pb laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) zircon analyses of Totoltepec pluton rocks; mean 206 Pb/ 238 U age calculated by TuffZirc age algorithm of Ludwig and Mundil (2002) . Black
Image
A 2σ error bar plot showing concordant 206 Pb/ 238 U ages of detrital zirc... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
-Pb sensitive high-resolution ion microprobe (SHRIMP) analyses of zircons separated from Chichihualtepec Tecomate Formation metaconglomerate granitoid cobbles ( Keppie et al., 2004b ). Diagonally hatched regions and histograms represent U-Pb age data from Totoltepec pluton rocks. Gray shaded histogram
Image
Variation diagrams for selected major elements, high field strength trace e... Available to Purchase
in Permian–Carboniferous arc magmatism and basin evolution along the western margin of Pangea: Geochemical and geochronological evidence from the eastern Acatlán Complex, southern Mexico
> GSA Bulletin
Published: 01 September 2012
Figure 7. Variation diagrams for selected major elements, high field strength trace elements, and ratios of Totoltepec pluton rocks and correlative Carboniferous–Permian igneous suites (labeled in part F). Division lines in K 2 O plot are from Le Maitre et al. (2002) . Included in the comparison
Image
Continued. facies metasedimentary rock (A13) of the Acatlán Complex, I) a... Available to Purchase
in Guidelines for assessing the provenance of Mesozoic and Cenozoic clastic successions sourced by pre-Jurassic basement complexes in southernmost North America
> Journal of Sedimentary Research
Published: 28 May 2020
and polycrystalline fragment with quartz showing SGR-related structures from a quartz vein (A7) of the Acatlán Complex, M) a phaneritic and polycrystalline fragment dominated by GBM-related structures in quartz from a metatonalite (A16) of the Totoltepec pluton, N) a phaneritic and polycrystalline fragment
Image
(A) ɛ Nd(t) vs. time plot comparing Sm-Nd isotopic data of amphibolites an... Open Access
in A Late Triassic tectonothermal event in the eastern Acatlán Complex, southern Mexico, synchronous with a magmatic arc hiatus: The result of flat-slab subduction?
> Lithosphere
Published: 01 April 2014
to Sm-Nd data from Pennsylvanian–Early Permian Totoltepec pluton gabbros ( Kirsch et al., 2012 ), as well as Ordovician amphibolites from the Olinalá area ( Ortega-Obregón et al., 2010b ) and the Asis lithodeme ( Murphy et al., 2006 ). For comparison, ɛ Nd(t) data for all samples are shown at t = 339
Journal Article
Acatlán Complex, southern Mexico: Record spanning the assembly and breakup of Pangea Available to Purchase
Journal: Geology
Publisher: Geological Society of America
Published: 01 October 2006
Geology (2006) 34 (10): 857–860.
... by deposition of Permian–Carboniferous marine clastics (Patlanoaya Formation) and intrusion of the calc-alkaline Totoltepec pluton, from which Yañez et al. (1991) obtained a concordant Early Permian U-Pb zircon age of 287 ± 2 Ma. Middle Jurassic (Bajocian) continental to shallow-marine sedimentary rocks...
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(A) Tectonic reconstruction of west-central Pangea in the Late Carboniferou... Available to Purchase
in Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure
> GSA Bulletin
Published: 30 April 2021
—Las Delicias Basin ( Lopez, 1997 ; Lopez et al., 2001 ; McKee et al., 1999 ); 6—Atlos Cuchumatanes ( Solari et al., 2009 , 2010 ); 7—El Aserradero Rhyolite ( Stewart et al., 1999 ); 8—Totoltepec pluton ( Kirsch et al., 2013 ); 9—Cuanana Pluton and Honduras batholith ( Ortega-Obregón et al., 2014
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Terrane map shows the Gulf of Mexico region modified from Dickinson and Ge... Available to Purchase
in Evidence of Carboniferous arc magmatism preserved in the Chicxulub impact structure
> GSA Bulletin
Published: 30 April 2021
outcrops are shown by white dots. Suwanee and Yucatán have Gondwanan tectonic affinity. Drillcores in north Florida and south Georgia, Maya Mountains, Deep Sea Drilling Project Leg 77, Altos Cuchumatanes, Las Delicias (Coahuila), Aserradero, Acatlán Complex eclogites, Totoltepec pluton, and this study
Journal Article
Guidelines for assessing the provenance of Mesozoic and Cenozoic clastic successions sourced by pre-Jurassic basement complexes in southernmost North America Available to Purchase
Journal: Journal of Sedimentary Research
Publisher: SEPM Society for Sedimentary Geology
Published: 28 May 2020
Journal of Sedimentary Research (2020) 90 (5): 513–532.
... and polycrystalline fragment with quartz showing SGR-related structures from a quartz vein (A7) of the Acatlán Complex, M) a phaneritic and polycrystalline fragment dominated by GBM-related structures in quartz from a metatonalite (A16) of the Totoltepec pluton, N) a phaneritic and polycrystalline fragment...
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Journal Article
A Late Triassic tectonothermal event in the eastern Acatlán Complex, southern Mexico, synchronous with a magmatic arc hiatus: The result of flat-slab subduction? Open Access
Journal: Lithosphere
Publisher: GSW
Published: 01 April 2014
Lithosphere (2014) 6 (2): 63–79.
... to Sm-Nd data from Pennsylvanian–Early Permian Totoltepec pluton gabbros ( Kirsch et al., 2012 ), as well as Ordovician amphibolites from the Olinalá area ( Ortega-Obregón et al., 2010b ) and the Asis lithodeme ( Murphy et al., 2006 ). For comparison, ɛ Nd(t) data for all samples are shown at t = 339...
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Book Chapter
Vestige of the Rheic Ocean in North America: The Acatlán Complex of southern México Available to Purchase
... that both phases of deformation in the Tecomate Formation additionally affect the Totoltepec pluton, a calc-alkaline granitoid body from which concordant U-Pb zircon ages of 287 ± 2 Ma and 289 ± 1 Ma have been recorded ( Yañez et al., 1991 ; Keppie et al., 2004b ). An Early Permian age...
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