MINERALOGY AND GEOCHEMISTRY OF THE SAN FELIPE FORMATION (UPPER CRETACEOUS) IN THE PEDRO CARRIZALES LOCALITY (RAYONES, NUEVO LEÓN), NORTHEASTERN MÉXICO

2020 ◽  
Author(s):  
Isabel Cossío-Dülmer ◽  
◽  
Carolina Cossío-Dülmer ◽  
Fernando Velasco Tapia ◽  
Yolanda Pichardo-Barrón ◽  
...  
2018 ◽  
Vol 30 (72) ◽  
Author(s):  
Dionicio Morales Ramírez ◽  
Ruth Roux

En este artículo se identificaron y valoraron los efectos esperados de la extracción de gas shale en Tamaulipas, Nuevo León y Coahuila, ante la llegada inminente de compañías nuevas a la cuenca de Burgos, en el noreste de México. Con la metodología de criterios relevantes integrados se recopi­laron datos de informantes clave de los sectores académico, gubernamental y empresarial, de los tres estados. Según los resultados, 65 por ciento de las variables empleadas para evaluar dichos efectos, derivados del desarrollo de la indus­tria en la región, se asocian con cambios positivos, 15 con negativos y 20 se mantienen inalterables. Se sobreestimaron los beneficios esperados por la explotación de gas oil/shale, y existe preocupación por la disponibilidad de agua, dadas las condiciones geográficas y climatológicas de la región. Aunque la metodología empleada no especifica que se deba aplicar a un número óptimo de actores, se reconoce que el análisis podría mejorar significativamente entre mayor sea la cantidad de participantes. La contribución principal al campo de la evaluación de las repercusiones sociales es la adaptación de esta metodología, debido a la escasa literatura sobre el tema.Expected effects of shale gas extraction in northeastern Mexico: a qualitative approachThis article identifies and assesses the expected effects of shale gas extraction in Tamaulipas, Nuevo Leon and Coa­huila in the face of the imminent arrival of new companies to Burgos Basin in northeastern Mexico. Using the inte­grated relevant criteria methodology, data of key informants from the academic, governmental and business sectors in the three states were collected. According to the results, 65 percent of the variables used for assessing these effects, as a consequence of the development of industry in the region, are associated with positive changes, 15 percent with nega­tive changes and 20 percent remain unchanged. Expected benefits from shale gas/oil exploitation were overestimated; moreover, there is concern about the availability of water, given the geographical and climatological conditions of the region. Although the methodology used does not specify it must be applied to an optimal number of actors, it is to be admitted that the analysis could be significantly improved the greater the number of participants is. The main con­tribution to the field of assessment of social repercussions is that of having adapted this methodology because of the existing scarce literature on the subject.


2015 ◽  
Vol 86 (5) ◽  
pp. 1489-1495 ◽  
Author(s):  
Juan C. Montalvo‐Arrieta ◽  
Rocío L. Sosa‐Ramírez ◽  
Edgar G. Paz‐Martínez

1983 ◽  
Vol 39 (4) ◽  
pp. 499-518
Author(s):  
Guillermo Beato ◽  
Domenico Sindico

In the Latin American context there are few regions which defy the commonly accepted idea of dependent development and the late start of the process of industrial growth following the great crisis of 1929. Among these few, Northeastern Mexico, with its industrial capital Monterrey, appears to offer the best example of a large industrial spurt occurring towards the end of the nineteenth century. During the two decades from 1890 to 1910 important industrial complexes, basically metallurgic and siderurgic factories, began to operate in this region, creating an impressive network of related activities and making possible considerable growth in the local demand for both consumption goods and semi-manufactured items. The statistics on industrial production reveal the importance of the process: during the years 1897,1898 and 1899 the metallurgic sector in Nuevo León produced goods worth 50,847,178 pesos. This represented 23.5% of total Mexican production, making it the most important state in the nation. By 1902, Nuevo León was also in first place as far as total industrial production was concerned, accounting for 13.5% of the national production.


2017 ◽  
Vol 34 (3) ◽  
pp. 182 ◽  
Author(s):  
Jorge A. Salinas-Jasso ◽  
Ricardo A. Salinas-Jasso ◽  
Juan C. Montalvo-Arrieta ◽  
Efraín Alva-Niño

We present a landslide inventory for the Santa Rosa Canyon in the Monterrey Salient, between Linares and Iturbide in Nuevo León state. A total of 429 landslides were documented from field investigation, analysis and interpretation of satellite imagery and historical data from Google Earth platform for the last 30 years. Falls, slides and flows are the most typical landslides, mainly related to extraordinary rainfalls from hurricanes and tropical storms. Moreover, an overall increase in seismicity in northeastern Mexico may indicate this activity as the second most important factor triggering slope instabilities. This inventory could be used in detailed landslide risk assessment studies in the region, and the methodology may be extrapolated to neighboring areas with recurrent landslides and a lack of scientific studies.


PhytoKeys ◽  
2020 ◽  
Vol 139 ◽  
pp. 21-28
Author(s):  
Paul M. Peterson ◽  
Konstantin Romaschenko ◽  
Robert J. Soreng ◽  
Jesus Valdés Reyna

Eriocoma valdesiisp. nov., is described and illustrated. The new species was found growing on calcareous rocky slopes and hillsides between 1700–2721 m in Coahuila, Nuevo León, San Luis Potosí, and Tamaulipas. The new species is morphologically similar to Eriocoma lobata but differs in having ligules (2–) 4.5–8.5 mm long with acute to narrowly acute and lacerate apices and florets with a sharp-pointed callus. In addition, we include a key to the species of Eriocoma in northeastern México.


2001 ◽  
Vol 38 (2) ◽  
pp. 229-238 ◽  
Author(s):  
W Stinnesbeck ◽  
P Schulte ◽  
F Lindenmaier ◽  
T Adatte ◽  
M Affolter ◽  
...  

In the La Sierrita area of Nuevo Leon, Mexico, three spherule layers are present and separated from the overlying siliciclastic deposits by up to 6 m of pelagic marls. The marls are of latest Maastrichtian age (Plummerita hantkeninoides (CF1) Zone, Micula prinsii Zone) and deposited under normal pelagic conditions with no significant evidence of reworking or slumping. Original deposition of the spherule layers occurred during the last 300 ka of the Maastrichtian and well prior to the Cretaceous-Tertiary (K–T) boundary event. Thus, if the spherules in northeastern Mexico provide critical evidence of an impact at Chicxulub, this impact predates the K–T boundary.


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