Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Keith P. Minor"'
Publikováno v:
Geological Society, London, Special Publications. 523:487-523
The influence of bottom currents and tectonic activity on shelf sedimentary processes and sand distribution remains poorly constrained. A growing body of research highlights the importance and variability of the shelf sandstone bodies. To explore the
Publikováno v:
GSA Bulletin. 134:419-445
We describe and analyze the depositional history and stratigraphic architecture of the Campanian and Maastrichtian succession of the southern greater Green River basin of Wyoming, USA, and surrounding areas to better understand the interplay between
Autor:
M. Franco-Rubio, Josep Anton Moreno-Bedmar, Keith P. Minor, Emmanuel Robert, Pedro Patarroyo, Angélica Oviedo, J.R. Ovando-Figueroa
Publikováno v:
Cretaceous Research
Cretaceous Research, 2018, 82, pp.109--137. ⟨10.1016/j.cretres.2017.10.007⟩
Cretaceous Research, 2018, 82, pp.109--137. ⟨10.1016/j.cretres.2017.10.007⟩
In this paper we study the ammonoid taxonomy and biostratigraphy from the upper Aptian to the lower Albian of the Cerro Chino area, with an emphasis on an accurate taxonomic characterization of the American endemic forms Kazanskyella, Quitmanites, Im
Publikováno v:
Carnets de géologie (Notebooks on geology). 15:173-178
We study the three best preserved ammonites collected by Astre in 1924-1925 in Lleida Province, Catalonia, Spain, in order to assess their taxonomic assignment. We also include images of these ammonoids since they were not illustrated in Astre's orig
Autor:
Ricardo Barragán, Oscar González-León, Claudia C. Mendoza-Rosales, Gérard Delanoy, Josep Anton Moreno-Bedmar, Keith P. Minor
Publikováno v:
Cretaceous Research. 54:203-211
This work is a study of the ammonite record of a new stratigraphic section of Aptian age, at the Mina Texali (Puebla State, Central Mexico). A detailed biostratigraphic analysis was carried out on 309 specimens systematically sampled on a bed-by-bed
Autor:
Keith P. Minor, Hannes Loser
Publikováno v:
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 245:193-218
The taxonomy of Early Cretaceous shallow marine coral faunas from the Bisbee Basin (northwestern Mexico and Arizona, southwestern USA) and the Comanche Platform (Texas, USA) are compared to each other and to coral associations of the same age around
Publikováno v:
Carnets de géologie (Notebooks on geology). 15
We report an interesting Aptian ammonite record from the La Pena Formation in the Sierra de Parras, Coahuila State. This assemblage is analyzed from a paleoecological perspective. It contains the first reported occurrence of a macroconch of Dufrenoyi
Publikováno v:
The Journal of Organic Chemistry. 62:6379-6387
A Prins−pinacol rearrangement is the key step in a new method for synthesizing cis-bicyclo[n.4.0]alkanones. The alkenyl acetal rearrangement substrates 1 are assembled from cycloalkanone precursors...
Autor:
Larry E. Overman, Keith P. Minor
Publikováno v:
Tetrahedron. 53:8927-8940
Lewis acid-promoted cyclizations of methylenecyclohexane siloxy acetals 14, 15 , and 21 afford spiro[4.5]decanones 22, 25 , and 29 in good yield. In all cases, exclusive pinacol rearrangement of C-1 of the original three-carbon acetal side chain is o
Autor:
Keith P. Minor, Larry E. Overman
Publikováno v:
ChemInform. 28
Lewis acid-promoted cyclizations of methylenecyclohexane siloxy acetals 14, 15 , and 21 afford spiro[4.5]decanones 22, 25 , and 29 in good yield. In all cases, exclusive pinacol rearrangement of C-1 of the original three-carbon acetal side chain is o