Las escrituras criminales en el contexto de la lucha por las libertades: teoría y práctica en Canarias entre 1959 y 1982

Programa de doctorado: Historiografía, fuentes y métodos de la investigación histórica

Understanding block rotation of strike-slip fault zones: Paleomagnetic and structural approach

This thesis is focused on the paleomagnetic rotation pattern inside the deforming zone of strike-slip faults, and the kinematics and geodynamics describing it. The paleomagnetic investigation carried out along both the LOFZ and the fore-arc sliver (38º-42ºS, southern Chile) revealed an asymmetric rotation pattern. East of the LOFZ and adjacent to it, rotations are up to 170° clockwise (CW) and fade out ~10 km east of fault. West of the LOFZ at 42ºS (Chiloé Island) and around 39°S (Villarrica domain) systematic CCW rotations have been observed, while at 40°-41°S (Ranco-Osorno domain) and adjacent to the LOFZ CW rotations reach up to 136° before evolving to CCW rotations at ~30 km from the fault. These data suggest a directed relation with subduction interface plate coupling. Zones of high coupling yield to a wide deforming zone (~30 km) west of the LOFZ characterized by CW rotations. Low coupling implies a weak LOFZ and a fore-arc dominated by CCW rotations related to NW-sinistral fault kinematics. The rotation pattern is consistent with a quasi-continuous crust kinematics. However, it seems unlikely that the lower crust flux can control block rotation in the upper crust, considering the cold and thick fore-arc crust. I suggest that rotations are consequence of forces applied directly on both the block edges and along the main fault, within the upper crust. Farther south, at the Austral Andes (54°S) I measured the anisotropy of magnetic susceptibility (AMS) of 22 Upper Cretaceous to Upper Eocene sites from the Magallanes fold-thrust belt internal domains. The data document continuous compression from the Early Cretaceous until the Late Oligocene. AMS data also show that the tectonic inversion of Jurassic extensional faults during the Late Cretaceous compressive phase may have controlled the Cenozoic kinematic evolution of the Magallanes fold-thrust belt, yielding slip partitioning.

L'evoluzione delle politiche culturali in Italia tra centro e periferia con uno sguardo alla Francia (1959-1975)

L’obiettivo di questo studio è comprendere come si sia evoluto il concetto di bene culturale in Italia nella seconda metà del Novecento. Pertanto si ritiene rilevante l’analisi delle vicende storiche e politiche sulla gestione, valorizzazione e tutela del patrimonio culturale. In particolare si focalizza l’attenzione sullo sviluppo delle politiche pubbliche in Italia tra la fine degli anni Sessanta e la prima metà degli anni Settanta. Un momento che si definisce come un punto cardine del dibattito e delle azioni politiche che prendono avvio, in Italia, nel periodo post-unitario. Passaggi centrali di questo processo si considerano l’istituzione del Ministero per i Beni Culturali e Ambientali e le prime iniziative regionali nel campo della cultura. Ed è proprio nel rapporto tra centro e periferia che emerge una nuova attenzione ai beni culturali e all’elaborazione di politiche in questo campo. Al fine di uno sguardo europeo, nell’evoluzione delle politiche culturali, si considera peculiare il caso francese, con la creazione del Ministero degli Affari Culturali, alla fine degli anni Cinquanta.

Miocene basin development and volcanism along a strike-slip to flat-slab subduction transition: Stratigraphy, geochemistry, and geochronology of the central Wrangell volcanic belt, Yakutat-North America collision zone

New geochronologic, geochemical, sedimentologic, and compositional data from the central Wrangell volcanic belt (WVB) document basin development and volcanism linked to subduction of overthickened oceanic crust to the northern Pacific plate margin. The Frederika Formation and overlying Wrangell Lavas comprise >3 km of sedimentary and volcanic strata exposed in the Wrangell Mountains of south-central Alaska (United States). Measured stratigraphic sections and lithofacies analyses document lithofacies associations that reflect deposition in alluvial-fluvial-lacustrine environments routinely influenced by volcanic eruptions. Expansion of intrabasinal volcanic centers prompted progradation of vent-proximal volcanic aprons across basinal environments. Coal deposits, lacustrine strata, and vertical juxtaposition of basinal to proximal lithofacies indicate active basin subsidence that is attributable to heat flow associated with intrabasinal volcanic centers and extension along intrabasinal normal faults. The orientation of intrabasinal normal faults is consistent with transtensional deformation along the Totschunda-Fairweather fault system. Paleocurrents, compositional provenance, and detrital geochronologic ages link sediment accumulation to erosion of active intrabasinal volcanoes and to a lesser extent Mesozoic igneous sources. Geochemical compositions of interbedded lavas are dominantly calc-alkaline, range from basaltic andesite to rhyolite in composition, and share geochemical characteristics with Pliocene-Quaternary phases of the western WVB linked to subduction-related magmatism. The U/Pb ages of tuffs and Ar-40/Ar-39 ages of lavas indicate that basin development and volcanism commenced by 12.5-11.0 Ma and persisted until at least ca. 5.3 Ma. Eastern sections yield older ages (12.5-9.3 Ma) than western sections (9.6-8.3 Ma). Samples from two western sections yield even younger ages of 5.3 Ma. Integration of new and published stratigraphic, geochronologic, and geochemical data from the entire WVB permits a comprehensive interpretation of basin development and volcanism within a regional tectonic context. We propose a model in which diachronous volcanism and transtensional basin development reflect progressive insertion of a thickened oceanic crustal slab of the Yakutat microplate into the arcuate continental margin of southern Alaska coeval with reported changes in plate motions. Oblique northwestward subduction of a thickened oceanic crustal slab during Oligocene to Middle Miocene time produced transtensional basins and volcanism along the eastern edge of the slab along the Duke River fault in Canada and subduction-related volcanism along the northern edge of the slab near the Yukon-Alaska border. Volcanism and basin development migrated progressively northwestward into eastern Alaska during Middle Miocene through Holocene time, concomitant with a northwestward shift in plate convergence direction and subduction collision of progressively thicker crust against the syntaxial plate margin.

Stratified Boston: The Brahmins, the Irish and the Boston Police Strike of 1919

This thesis explores the Boston Police Strike of 1919 through the lens of class struggle and ethnic tension. Through an examination of the development of Boston’s class structure, particularly focused on the upper class Brahmins and the Irish working class, it concludes that the Brahmins’ success in suppressing the police strikeallowed for their maintenance of socioeconomic power within the city despite their relatively small population. Based on their extreme class cohesion resulting from the growing prominence of Harvard University as well as the Brahmins’ unabashed discrimination against their ethnic neighbors in almost every sphere of society, theBrahmins were able to maintain their power in Boston’s cultural world. The Irish working class, on the other hand, which attempted to use the increasing popularity of public and police unionization to challenge the status and power of the Brahmins through the creation of the Boston Police Union and subsequently through the notorious Boston Police Strike of 1919 was ultimately unsuccessful, and it was left in the same position in which it started, at the bottom of the social ladder. The suppression of the strike by members of the upper class and their allies, particularly those in high government positions, served to preserve and affirm the socioeconomic power of the Brahmins over much of Boston society and brought the era of public police unionization to a close.

Exhibit: “Tumult and Tragedy: Michigan’s 1913-1914 Copper Strike”

Tumult and Tragedy: Michigan’s 1913-14 Copper Strike chronicles one of the greatest upheavals in Michigan’s history. The determination, conflict, sorrow, and tragedy of this epic confrontation changed the Copper Country for decades and memories of conflict remain to this day. This traveling exhibit explores the story of this remarkable period in Michigan history.

Exhibit: “Tumult and Tragedy: Michigan’s 1913-1914 Copper Strike”

Tumult and Tragedy: Michigan’s 1913-14 Copper Strike chronicles one of the greatest upheavals in Michigan’s history. The determination, conflict, sorrow, and tragedy of this epic confrontation changed the Copper Country for decades and memories of conflict remain to this day. This traveling exhibit explores the story of this remarkable period in Michigan history.

Exhibit: “Tumult and Tragedy: Michigan’s 1913-1914 Copper Strike”

Tumult and Tragedy: Michigan’s 1913-14 Copper Strike chronicles one of the greatest upheavals in Michigan’s history. The determination, conflict, sorrow, and tragedy of this epic confrontation changed the Copper Country for decades and memories of conflict remain to this day. This traveling exhibit explores the story of this remarkable period in Michigan history.

The Copper Country Strike of 1913-1914 in Finnish Newspapers

The purpose of this study is to take a closer look at media response in Finland concerning the 1913-14 Michigan Copper Strike and depict how the strike was presented in the Old Country and its main newspapers. I shall take a closer look at the 1913-14 issues of Työmies (social democrat), Helsingin Sanomat (liberal), and Uusi Suometar (conservative) for ideological views of the strike. Furthermore, and in terms of close reading and cross-referencing, how did these newspapers in Finland see the strike and the strike’s outcome? Editorial notes and letters from the public shall both be included. Special attention will be given to the notions of transnational solidarity between Finnish-American and Finnish labor activists.