1,720,962 research outputs found
Informe Preliminar Campaña a las Sierras Pampeanas de la Provincia de Córdoba, Comprendidas entre Villa Giardino y La Falda
No full textEste informe preliminar es manuscrito.Fil: Stuart-Smith, Peter G. Australian Geological Survey Organisation; Australia.Fil: López, H. Secretaría de Minería de la Nación. Delegación Córdoba; Argentina.Fil: Viruel, María E. Secretaría de Minería de la Nación. Delegación Córdoba; Argentina.Fecha de campaña: 12 a 14 de julio de 1995
Report on 1:100 000 Scale Geological and Metallogenic Maps Sheet 3163-13 Jesús María, Province of Córdoba
Full text linkCubrimiento parcial de la hoja.Fil: Stuart-Smith, Peter G. Australian Geological Survey Organisation; Australia.Fil: Skirrow, Roger G. Australian Geological Survey Organisation; Australia.The Jesús María 1:100.000 Sheet area lies within the Córdoba Province, between 30o40’-31o00’S and 64o00’-64o30’W. The area is part of the 3163-I (Jesús María)1:250 000 sheet area.
The region includes the northern extremities of the Sierra Chica one of several north-trending mountain ranges which traverse the northern part of the Córdoba Province. The Sierra Chica is drained by the easterly flowing Ríos Ascochinga, Santa Sabina, and Pinto.
Access to the region, from Córdoba city, is via Jesús María and Ruta Provincial 9 in the east. Two unsealed roads traverse the Sierra Chica, one passing, through Ascochinga and the other through Todos Los Santos
Report on 1:100 000 Scale Geological and Metallogenic Maps Sheet 3163-19 Cosquín, Province of Córdoba
Full text linkFil: Stuart-Smith, Peter G. Australian Geological Survey Organisation; Australia.Fil: Skirrow, Roger G. Australian Geological Survey Organisation; Australia.Cubrimiento parcial de la hoja.The Cosquin 1:100.000 Sheet area lies within the Córdoba Province, between 31o00’-31o20’S and 64o00’-64o30’W. The area is part of the Córdoba (3163-III)1:250 000 sheet area.
The region includes the central northern part of the Sierra Chica, one of several north-trending mountain ranges which traverse the northern part of the Córdoba Province. The Sierra Chica is drained by the easterly flowing Ríos La Granja, Ascochinga, and Santa Sabina.
Access to the region, from Córdoba city, is via El Manzano and Ruta Provincial 9 in the east. An unsealed road traverses the eastern flank of the Sierra Chica from El Manzano to La Cumbre (Jesús María sheet area)
Mapeo Geocientífico de las Sierras Pampeanas Proyecto Cooperativo Argentino-Australiano
No full textFil: Hungerford, N. Australian Geological Survey Organisation; Australia.Fil: Lyons, P. Australian Geological Survey Organisation; Australia.Fil: Stuart-Smith, Peter G. Australian Geological Survey Organisation; Australia.Versión en inglés. Reedición 2012.An airborne geophysical survey of the Sierras septentrionales de Córdoba, covering an
area of 5.600 km2 from west of the Sierra Grande to east of the Sierra Chica, was done as part of
the AGSO-DNSG cooperative geoscientific mapping program. Magnetic and radiometric (U, K,
Th) data were obtained along flight lines spaced 500 m apart from a mean height of 100 m.
Magnetic data were processed by Hungerford Geophysical Consultants and radiometrics were
processed at AGSO. The data were interpreted by Hungerford Geophysical Consultants and
geoscientists from AGSO at 1:100.00 scale and a number of geophysical domains have been
identified. In conjunction, some anomalies were modelled at 1:250.000 scale in order to obtain dip
and an estimation of the depth to source. Magnetic susceptibilities of rock types were measured in
the field and employed to assist magnetic interpretation. In general, the overlap in susceptibility
data precludes rock type identification from the magnetics alone.
The rocks of the Sierra Grande are generally only week to moderately magnetised. A
number of domains delineating various packages of metamorphic rock, granite (sensu lato), and the
northern continuation of the Guamanes Shear zone have been identified. In the Sierra Chica a
number of granite and granodiorite bodies can be subdivided on the basis of their magnetic
character, a fault-bounded marble-schist-gneiss belt marks a thrust, and a number of poorly
exposed granite bodies east of the Sierra Chica have also been identified. In addition, probable
thrusts, splays, and potentially mineralised cross faults have been locates. Geophysical domains
are, in some places, sourced under Recent cover thus confirming or establishing continuity between
areas of outcrop.
Although there are obvious similarities and regional continuations between the Córdoba
project area and the project areas in La Rioja and San Luis, the distances between them and the
absence of survey tie-lines does not allow substantive comparisons to de made on the geophysics
alone
Mapeo Geocientífico de las Sierras Pampeanas Proyecto Cooperativo Argentino-Australiano
No full textFil: Hungerford, N. Australian Geological Survey Organisation; Australia.Fil: Sims, J.P. Australian Geological Survey Organisation; Australia.Fil: Stuart-Smith, Peter G. Australian Geological Survey Organisation; Australia.Versión en inglés. Reedición 2012.This report and accompanying 1:250.000 scale magnetic interpretation map of the Sierra de
San Luis y Comechingones region are a product of the Geoscientific Mapping of the Sierras
Pampeanas cooperative project between the Australian Geological Survey Organisation (AGSO)
and the Dirección Nacional del Servicio Geológico (DNSG) of the Subsecretaría de Minería,
República de Argentina. This report details the interpretation of magnetic data obtained during a
high resolution, airborne geophysical survey over an area of 12.000 km2, including the Sierras de
San Luis and Sierra de Comenchingones in the Provinces of San Luis and Córdoba.
For the airborne geophysical survey, magnetic and radiometric (U, K, Th) data were
obtained by World Geoscience along flight lines spaced 500m apart, from a nominal height of
100m. To assist the aeromagnetic interpretation, magnetic susceptibilities were measured during
field work of exposed rock types. The magnetic data from the airborne survey were processed by
Hungerford Geophysical Consultants (HGC) and radiometric data were processed by AGSO. The
data were interpreted by HGC and geoscientists from AGSO at 1:1.000.000 scale and a number of
geophysical domains have been identified. In conjunction, some individual aeromagnetic anomalies
were modelled in order to obtain a dip and an estimation of the depth to source.
In general, the Sierras de San Luis y Comechingones may be separated in two distinct
regions that are separated by a major NNE-SSW trending thrust fault. East of this fault there is a
generally low magnetic background and a number of prominent and well defined circular granite
intrusions. West of this fault the magnetic response en generally higher and marked by strong linear
trends and moderated to highly magnetic, strike-parallel anomalies. Furthermore, granite intrusions
in the west generally form elongated belts and there is more diversity in the basement rock-types.
In addition, a number of intense, isolated anomalies, which occur within both regions, are related to
Tertiary volcanic plugs
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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