Search Results - stratigraphy~

About an outcrop with fauna of the venericardia planicosta group in the western burgos province, ne México by Jenchen, Uwe

“…After comparing the shell morphology as well as the stratigraphic range of these fossils with holo-, co- and, hypotypes from different publications, a part of the described shells can be assigned to the species Venericardia (Venericor) diga.…”
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Caracterización de las sucesiones areno - conglomeráticas del eoceno en la región de las Choapas, Veracruz. by Coronado González, Jesús Margil

“…Abstract Study of a portion of the Cenozoic stratigraphic column in the region of Las Choapas, Veracruz, corresponding to the Eocene. …”
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Caracterización de las sucesiones areno - conglomeráticas del eoceno en la región de las Choapas, Veracruz. by Coronado González, Jesús Margil

“…Abstract Study of a portion of the Cenozoic stratigraphic column in the region of Las Choapas, Veracruz, corresponding to the Eocene. …”
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Análisis bio-estratigráfico y microfacial de la formación Zuloaga en la Cañada Alardín, General Zaragoza, Nuevo León, México by Rivera Estrada, Consuelo Araceli

“…Based on this data, a Geo-Archaeological investigation was carried out with the purpose of establishing the stratigraphic secuence of the area, distinguishing microfacies and the characteristic micro-fossils association, based on thin sections analysis from the Zuloaga Fm., in order to explaining the depositional environment.…”
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Análisis bio-estratigráfico y microfacial de la formación Zuloaga en la Cañada Alardín, General Zaragoza, Nuevo León, México by Rivera Estrada, Consuelo Araceli

“…Based on this data, a Geo-Archaeological investigation was carried out with the purpose of establishing the stratigraphic secuence of the area, distinguishing microfacies and the characteristic micro-fossils association, based on thin sections analysis from the Zuloaga Fm., in order to explaining the depositional environment.…”
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Estudio microfacial, mineralógico, geoquímico e isotópico de la formación San Felipe (Cretácico Superior), Noreste de México. by Tienda Garza, Jaime Antonio

“…ABSTRACT The San Felipe Formation (total thickness ~130 m, Santonian - Campanian) is a lithological unit, included in the stratigraphic column of the Sierra Madre Oriental, Northeastern Mexico, consisting of packstone-wackestone varying to mudstone carbonate from light to dark gray (thickness 20-100 cm), constituted by calcite, quartz and illite with characteristical Upper Cretaceous planktonic foraminifera, radiolarians and calcispheres, which was paulatined transformed in shale (thickness <5 cm) with the stratigraphic rise, constituted by calcite, quartz, albite, and illite. …”
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Estudio microfacial, mineralógico, geoquímico e isotópico de la formación San Felipe (Cretácico Superior), Noreste de México. by Tienda Garza, Jaime Antonio

“…ABSTRACT The San Felipe Formation (total thickness ~130 m, Santonian - Campanian) is a lithological unit, included in the stratigraphic column of the Sierra Madre Oriental, Northeastern Mexico, consisting of packstone-wackestone varying to mudstone carbonate from light to dark gray (thickness 20-100 cm), constituted by calcite, quartz and illite with characteristical Upper Cretaceous planktonic foraminifera, radiolarians and calcispheres, which was paulatined transformed in shale (thickness <5 cm) with the stratigraphic rise, constituted by calcite, quartz, albite, and illite. …”
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Bioestratigrafía de la formación la peña, cretácico inferior, en base a foraminíferos (Clase Rhizopoda) del Cañón de la Huasteca, Santa Catarina, Nuevo León, México. by Córdoba Merino, Gabriela

“…Interval zone Globigerinelloides algerianus/Globigerinelloides ferreolensis and 5) interval zone Globigerinelloides ferreolensis/Paracitinella rohri corresponding to the stratigraphic sequence of the La Peña formation, defining the limit of the Lower Aptian-Upper Aptian as the age this formation.…”
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Bioestratigrafía de la formación la peña, cretácico inferior, en base a foraminíferos (Clase Rhizopoda) del Cañón de la Huasteca, Santa Catarina, Nuevo León, México. by Córdoba Merino, Gabriela

“…Interval zone Globigerinelloides algerianus/Globigerinelloides ferreolensis and 5) interval zone Globigerinelloides ferreolensis/Paracitinella rohri corresponding to the stratigraphic sequence of the La Peña formation, defining the limit of the Lower Aptian-Upper Aptian as the age this formation.…”
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Vulcanismo en la secuencia evaporítica de la Formación Minas Viejas, Galeana N.L. by Loera García, Eusebio Federico

“…ABSTRACT Sierra Madre Oriental stratigraphic column includes a Jurassic formation (Oxfordian) called Minas Viejas, which consists of carbonates and evaporites. …”
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Vulcanismo en la secuencia evaporítica de la Formación Minas Viejas, Galeana N.L. by Loera García, Eusebio Federico

“…ABSTRACT Sierra Madre Oriental stratigraphic column includes a Jurassic formation (Oxfordian) called Minas Viejas, which consists of carbonates and evaporites. …”
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Estudio mineralógico y geoquímico del sistema roca – suelo – vegetación en el transecto Montemorelos – Rayones, Nuevo León. by Loera García, José Fermín

“…ABSTRACT Sierra Madre Oriental stratigraphic column includes a Jurassic formation (Oxfordian) called Minas Viejas, which consists of carbonates and evaporites. …”
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Estudio mineralógico y geoquímico del sistema roca – suelo – vegetación en el transecto Montemorelos – Rayones, Nuevo León. by Loera García, José Fermín

“…ABSTRACT Sierra Madre Oriental stratigraphic column includes a Jurassic formation (Oxfordian) called Minas Viejas, which consists of carbonates and evaporites. …”
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Caracterización microfacial de los sedimentos carbonatados del Albiano-Cenomaniano en la parte central del estado de Nuevo León by Salazar Sánchez, Jesús Enrique

“…This work consisted in characterizing this two stratigraphic untis by using petrographic, microfacial, paleontological and deposit environment study with the analysis of thin sections elaborated from samples previously collected in the field at each lithological change, allowing the identification of the petrographic characteristics and the microfossil content. …”
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Caracterización microfacial de los sedimentos carbonatados del Albiano-Cenomaniano en la parte central del estado de Nuevo León by Salazar Sánchez, Jesús Enrique

“…This work consisted in characterizing this two stratigraphic untis by using petrographic, microfacial, paleontological and deposit environment study with the analysis of thin sections elaborated from samples previously collected in the field at each lithological change, allowing the identification of the petrographic characteristics and the microfossil content. …”
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A palaeobiological window into the Lower Cretaceous Cupido Formation: Puerto México section, Nuevo Leon, Mexico by Torres de la Cruz, Felipe de Jesús, Chacón Baca, Elizabeth, Gómez Mancha, Yesica Edith, Cossío Torres, Tomás

“…The measured transect is correlated with a stratigraphic column logged in a nearby section. The preserved fossil biota represents marginal reef facies dominated by abundant rudist shells such as Douvillelia skeltoni, Toucasia sp., Offneria sp., and Amphitrocoelus sp. associated with relatively large colonial corals (with diameters up to 25 cm) like Stelidioseris sp. and to a lesser extent, with stromatoporoids. …”
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Bioestratigrafía de rudistas (Bivalvia – Hippuritida) de la parte basal de la Formación Cupido, en Nuevo León, México by Reyes Moreno, Emanuel Alejandro

“…Although it has previously been attempted to determinate the stratigraphic level of rudists in the lower – medium Cretaceous in Texas, this is the first report of the distribution of species for the Barremian in northeastern Mexico.…”
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Bioestratigrafía de rudistas (Bivalvia – Hippuritida) de la parte basal de la Formación Cupido, en Nuevo León, México by Reyes Moreno, Emanuel Alejandro

“…Although it has previously been attempted to determinate the stratigraphic level of rudists in the lower – medium Cretaceous in Texas, this is the first report of the distribution of species for the Barremian in northeastern Mexico.…”
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Análisis microfacial, paleontológico y geoquímico en carbonatos de la Formación el Abra, Cerritos, San Luis Potosí, México by Ramos Hernández, Jennifer

“…The zone of Pseudolituonella reicheli of Middle - Late Cenomanian age was identified, nevertheless, the presence of Hippurites resectus, extends the stratigraphic range to the Turonian. A group of 13 representative samples was selected which were analyzed by ICPMS and X-ray diffraction to know the elemental composition of trace elements and rare earth and mineral phases, respectively. …”
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Análisis estructural y estudio paleomagnético en el área potrero el colorado, porción occidental de la sierra la fragua, Coahuila, México by González Naranjo, Gildardo Alonso

“…The Potrero Colorado area is at the north part of the SMF, on the western part of La Fragua range, central part of Coahuila, Mexico. This area is a stratigraphic and structural window that allow us to see Jurassic rocks and faults not present in near parts over the SMF trace. …”
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