@inbook{e2ee86601de54c629e29e3d5eaf95275,
title = "Provenance of the Granjeno Schist, Ciudad Victoria, M{\'e}xico: Detrital zircon U-Pb age constraints and implications for the Paleozoic paleogeography of the Rheic Ocean",
abstract = "The Granjeno Schist of northeastern M{\'e}xico is the oldest component of the Sierra Madre terrane and comprises polydeformed, pelitic metasedimentary and metavolca- niclastic rocks that enclose lenses of serpentinite-metagabbro. This low-grade Paleozoic assemblage is exposed in the core of a NNW-trending frontal anticline of the Laramide fold-thrust belt where it is tectonically juxtaposed against ca. 1 Ga gran- ulites of the Novillo Gneiss. Silurian strata that unconformably overlie the Novillo Gneiss are unmetamorphosed and contain fauna of Gondwanan affinity. LA-ICPMS (laser ablation inductively coupled plasma mass spectroscopy)U-Pb ages for detrital zircons from a Granjeno phyllite yield age populations that cluster in the ranges ca. 1375-880 Ma, ca. 650-525 Ma, and ca. 460-135 Ma and slightly discordant grains with individual ages of ca. 1435 Ma, ca. 1640 Ma, ca. 2105 Ma, and ca. 2730 Ma. The youngest detrital zircon indicates a maximum depositional age for the Granjeno Schist of ca. 435 Ma (Lower Silurian). Detrital zircons of Neoproterozoic- Cambrian age suggest a provenance in the Maya terrane beneath the Yucatan Peninsula or the Brasiliano orogens of South America, and a source for the detrital zircons of Ordovician-Silurian age is present in the Acatl{\'a}n Complex of southern M{\'e}xico. Provenance of the Mesoproterozoic detrital zircons is likely to have been the adjacent Novillo Gneiss, which has yielded ages of ca. 990-980 Ma, ca. 1035-1010 Ma, and ca. 1235-1115 Ma. These detrital ages closely match those recorded from the Cosoltepec Formation of the Acatl{\'a}n Complex and support correlation of the two units, which are both interpreted to be vestiges of the southern margin of the Rheic Ocean.",
keywords = "Detrital zircons, Granjeno Schist, M{\'e}xico, Paleozoic, Rheic Ocean",
author = "Nance, {R. Damian} and Javier Fern{\'a}ndez-Su{\'a}rez and Keppie, {J. Duncan} and Craig Storey and Jeffries, {Teresa E.}",
year = "2007",
month = jan,
day = "1",
doi = "10.1130/2007.2423(22)",
language = "English",
isbn = "9780813724232",
series = "GSA Special Papers",
publisher = "Geological Society of America",
pages = "453--464",
editor = "Ulf Linnemann and Damian Nance and Petr Kraft and Gernold Zulauf",
booktitle = "The Evolution of the Rheic Ocean",
address = "United States",
}