La ciudad de la Residencia

Hay un plano de Madrid cuyo pausado examen es instructivo para el conocimiento de la situación de la ciudad en el momento en que tal plano se hizo. No está fechado pero tiene una reveladora leyenda al pie en la que se consigna la «relación de calles, plazas, etcétera, cambiadas de nombre hasta la fecha» (fecha que no aparece). Y el primer cambio de la relación se refiere al nombre de la avenida de Alfonso xii, que pasa a llamarse de Niceto Alcalá Zamora. Un poco más allá, entre otros igualmente significativos, está el de General Martínez Campos por Francisco Giner de los Ríos.

Particularidades observadas en algunos Ammonites piritosos

Separata del Bol. de la Soc. Iberica de Ciencias Naturales. Abril, oct. 1924

Characteristics of samples obtained during the expedition to Bolshoy Lyakhovsky Island in July/August 2014

The German-Russian project CARBOPERM - Carbon in Permafrost, origin, quality, quantity, and degradation and microbial turnover - is devoted to studying soil organic matter history, degradation and turnover in coastal lowlands of Northern Siberia. The multidisciplinary project combines research from various German and Russian institutions and runs from 2013 to 2016. The project aims assessing the recent and the ancient trace gas budget over tundra soils in northern Siberia. Studied field sites are placed in the permafrost of the Lena Delta and on Bol'shoy Lyakhovsky, the southernmost island of the New Siberian Archipelago in the eastern Laptev Sea. Field campaigns to Bol'shoy Lyakhovsky in 2014 (chapter 2) were motivated by research on palaeoenvironmental and palaeoclimate reconstruction, sediment dating, near surface geophysics and microbiological research. In particular the field campaigns focussed on: - coring Quaternary strata with a ages back to ~200.000 years ago as found along the southern coast; they allow tracing microbial communities and organic tracers (i.e. lipids and biomarkers, sedimentary DNA) in the deposits across two climatic cycles (chapter 3), - instrumenting a borehole with a thermistor chain for measuring permafrost temperatures (chapter 3), - sampling Quaternary strata for dating permafrost formation periods based on the optical stimulated luminescence (OSL) technique (chapter 4), - sampling soil and geologic formations for carbon content in order to highlight potential release of CO2 and methane based on incubation experiments (chapter 5), - profiling near surface permafrost using ground-penetrating radar and geoelectrics for defining the spatial depositional context, where the cores are located (chapters 6 + 7).

Radiocarbon datings of mollusk shells, sedimentation rates and accumulation rates of sediment matter in core PS2718-6

A bottom sediment core about 8 m long sampled in the eastern Kara Sea near the entrance to the Vil'kitsky Strait was studied. An age model was constructed based on four 14C datings obtained from by thy accelerating mass spectrometry method. Results of grain size, chemical, mineralogical, and foraminiferal analyses were adjusted to the model. A paleoceanological interpretation of these data together with paleoclimatic data on the Bol'shevik Island located in the neighborhood was performed.

Composition of sedimentary rocks from the Shapkina River valley, Bolshezemelskaya Tundra

A facies-genetic and stratigraphic subdivision of the Quaternary sequence in the Shapkina River valley has been accomplished. The riverbank shows outcrops of three glacial complexes with different mineralogical-petrographic compositions and structural characteristics, which can be correlated and stratificated. Datings of intermoraine horizons (alluvial, marine, lacustrine, and lacustrine-boggy sediments) have been based on palynological and paleomicrotheriological data. The Middle Neopleistocene section can be divided into two till horizons corresponding to two autonomous glaciations (Pechora and Vychegda). They are separated by a member of subaqueous Rodionov sediments. The Pechora till formed in the course of glacier motions from the northeast. Glacial horizons are mainly composed of the Vychegda till transported from the Northwest terrigenous provenance. Lithology of the Upper Neopleistocene Polyarnyi till testifies to its formation in the upper course of the river from material transported from the Northeast terrigenous-mineralogical provenance in the upper course of the river and from the Fennoscandian glaciation center in the lower course of the river. The paper presents the first lithological investigation and substantiation of genesis of various facies of Neopleistocene intermoraine marine sediments (sediments of the beach and fore-beach zones and shallow-water shelf).

Cancionero vivido : poesías completas.

Mode of access: Internet.

Carnaval : ouverture pour grand orchestre (avec orgue ad libitum) : op. 45 /

Cover-title in Russian (Karnaval : uverti︠u︡ra dli︠a︡ bolʹshago orkestra : soch. 45) and French

Ni︠e︡skolʹko sovremennykh voprosov /

"Pod zaglavīem: "Ni︠e︡skolʹko sovremennykh voprosov" izdai︠u︡tsi︠a︡ bolʹshei︠u︡ chastʹi︠u︡ statʹi ... napechatannyi︠a︡ v "Moskovskikh Vi︠e︡domosti︠a︡kh" i v "Nashem Vremeni"--p. [5]