Vol. 25 No. 3 (2008)

Critical values for 33 discordancy test variants for outliers in normal samples of very large sizes from 1,000 to 30,000 and evaluation of different regression models for the interpolation and extrapolation of critical values

Surendra P. Verma, Alfredo Quiroz-Ruiz

369-381

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Palinspastic reconstruction of the Mesozoic paleomargin of North America in western Cuba and southeastern Gulf of Mexico. Implications for the evolution of the southeastern Gulf of Mexico

Jorge L. Cobiella-Reguera

382-401

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A new fossiliferous site of Lower Liassic (Upper Sinemurian) marine sediments from the southern Sierra Madre Oriental (Puebla, Mexico): ammonite fauna, biostratigraphy, and description of Ectocentrites hillebrandti new species

Joachim Blau, Christian Meister, Reinhard Schmidt-Effing, Ana B. Villaseñor

402-407

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Geochemical assessment of Simav geothermal field, Turkey

Yildiray Palabiyik, Umran Serpen

408-425

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Assessment of nitrate contamination of karst springs, Bani Kanana, northern Jordan

Mutewekil M. Obeidat, Fayez Y. Ahmad, Nezar A. Hamouri, Adnan M. Massadeh, Faisal S. Athamneh

426-437

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Facies and depositional systems of the Galeana Sandstone Member (Taraises Formation, Lower Cretaceous, northeastern Mexico)

Yam Zul Ernesto Ocampo-Díaz, Uwe Jenchen, Martín Guerrero-Suastegui

438-464

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Three new improved Na/K geothermometers using computational and geochemiometrical tools: application to the temperature prediction of geothermal systems

Lorena Díaz-González, Edgar Santoyo, Juan Reyes-Reyes

465-482

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Paragenesis of alkaline zeolite in an outcrop of amigdaloidal olivine basalts in Junín de Los Andes, Neuquén, Patagonia, Argentina

María E. Vattuone, Pablo R. Leal, Sabrina Crosta, Yanina Berbeglia, Ernesto Gallegos, Carmen Martínez-Dopico

483-493

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Cenozoic deformations in the Caltepec fault cover, Tamazulapam region, southern Mexico

Alfredo Santamaría-Díaz, Susana Alicia Alaniz-Álvarez, Ángel Francisco Nieto-Samaniego

494-516

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Reevaluation of the holotype of Plesiosaurus (Polyptychodon) mexicanus Wieland, 1910 from the ?Upper Jurassic of Mexico: a thalattosuchian, not a sauropterygian

Marie-Céline Buchy

517-522

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Distribution of textural parameters of surficial sediments in the Bay of Chetumal: Implications for the inference of transport

Alberto Sánchez, Teresa Álvarez-Legorreta, Ricardo Sáenz-Morales, Ma. Concepción Ortiz-Hernández, B. Estela López-Ortiz, Sergio Aguíñiga

523-532

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Stratigraphic-structural relationships in the intersection of the fault systems San Luis–Tepehuanes and Aguascalientes graben, central Mexico

Isidro Loza-Aguirre, Angel F. Nieto-Samaniego, Susana A. Alaniz-Álvarez, Alexander Iriondo

533-548

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Evolution of a rhyolitic explosion crater (maar): Hoya de Estrada, Valle de Santiago volcanic field, Guanajuato, Mexico

Marisol Cano-Cruz, Gerardo Carrasco-Núñez

549-564

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Regular Papers