1,720,975 research outputs found
Biostratigrafia. In: Carta Geologica D'Italia - Foglio 219, Sassuolo della carta 1:50.000 dell'I.G.M.
No full text
L'età della messa in posto della coltre della Val Marecchia. Implicazioni paleogeografiche e strutturali.
No full text----
L'età della messa in posto della coltre della Val Marecchia. Implicazioni paleogeografiche e strutturali.
No full text--
Geologia dell'Appennino marchigiano-romagnolo tra le valli del Savio e del Foglia (Note illustrative alla carta geologica a scala 1:50.000).
No full textThis paper takes into account the relationships between "autochthonous" deposits of the Umbro-Marchean-Romagna sequence and allochthonous ones of the Val Marecchia sheet. New structural data, regarding both Epiligurian and Early Pliocene deposits, show strong evidences of the existence of synsedimentary tectonics. Six depositional sequences, separated by erosional surfaces, have been recognized inside Epiligurian deposits and they were controlled by different tectonic phases. During these phases the movement of the Val Marecchia sheet took place by thrust faults set in imbricated slices along one or more surfaces: Apenninic compressional regime (from SW to NE) caused this pattern and modelled "autochthonous" sequence in folds and slices overthrusted to NE.A deep structural depression, transversal to the Apenninic chain, probably related to wrench-fault tectonics (Grosseto-Marecchia line) occurred since Tortonian and controlled the sedimentation of the Umbro-Marchean-Romagna sequence until Early Pliocene (Globorotalia puncticulata Zone).A palaeogeographic reconstruction of this area during Middle Miocene-Early Pliocene is proposed; Apenninic compressional regime played two different roles in the construction of the structural elements of the Val Marecchia area. Structural "autochthonous" highs became evident since Middle-Late Miocene and controlled rate and dynamics of the "substratum" of the Val Marecchia sheet. On the other hand over the allochthonous sheet small sedimentary basins (piggyback and overstep basins) were formed during Middle Miocene to Early Pliocene and their stratigraphic wedging and unconformities were controlled by continuous movement of the Val Marecchia sheet
Carta geologica dell'Appennino emiliano-romagnolo a scala 1:10.000 - Sezione 219150 "S. Dalmazio" (Edizione 2003)
No full text
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
- …
