1,721,061 research outputs found
THE SOURCE OF MACIGNO SANSTONES: NEW DATA FROM STUDY OF ZIRCIN FISSION TRACK AND MORPHOLOGY.
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GEOCHRONOLOGICAL DATING AND ZIRCON MORPHOLOGY ANALYSES FOR PROVENANCE STIDIES OF THR EPILIGURIAN UNITS OF THE NORTHEN APENNINES.
No full textDuctile-brittle deformation in the hanging-wall of the South Tibetan Detachment System (Southern Tibet)
No full textPlagioclase-arenites from the Northern Apennines and Southern Alps: record of a Paleogene island arc related to alpine subduction
No full textLow-temperature thermochronology data onshore Mauritania
Full text linkTo investigate the history of vertical movements in Mauritania, 22 samples were collected from the Precambrian crystalline basement, which sporadically outcrops 100 to 500 km east of the shoreline of the Atlantic margin. The large majority of the samples were taken from granitic intrusions exposed in the Reguibat Shield in the north and along the N-S trending Mauritanides belt
Striking Variation in the Provenance of the Lower and Upper Cretaceous Turbidites in the Central Pontides (Northern Turkey) Related to the Opening of the Black Sea
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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
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