Building up or out? Disparate sequence architectures along an active rift margin—Corinth rift, Greece

Early Pleistocene synrift deltas developed along the southern Corinth rift margin were deposited in a single, dominantly lacustrine depocenter and were subject to the same climate-related base-level and sediment supply cyclicity. Two synrift deltas, just 50 km apart, show markedly different sequence geometry and evolution related to their location along the evolving border fault. In the west, strongly aggradational fan deltas (>600 m thick; 2–4 km radius) deposited in the immediate hanging wall of the active border fault comprise stacked 30–100-m-thick stratal units bounded by flooding surfaces. Each unit evolves from aggradational to progradational with no evidence for abrupt subaerial exposure or fluvial incision. In contrast, in the central rift, the border fault propagated upward into an already deep lacustrine environment, locating rift-margin deltas 15 km into the footwall. The deltas here have a radius of >9 km and comprise northward downstepping and offlapping units, 50–200 m thick, that unconformably overlie older synrift sediments and are themselves incised. The key factors driving the marked variation in sequence stratigraphic architecture are: (1) differential uplift and subsidence related to position with respect to the border fault system, and (2) inherited topography that influenced shoreline position and offshore bathymetry. Our work illustrates that stratal units and their bounding surfaces may have only local (<10 km) extent, highlighting the uncertainty involved in assigning chronostratigraphic significance to systems tracts and in calculating base-level changes from stratigraphy where marked spatial variations in uplift and subsidence occur

Mitos y Creencias que influyen en el comportamiento sexual de embarazadas, en la ciudad de Concepción del Uruguay, Entre ríos, Argentina

Esta investigación se propuso realizar un abordaje sobre los mitos y&nbsp; creencias presentes en mujeres embarazadas de Concepción del Uruguay con relación a los comportamientos sexuales, indagando de forma particular la manera en que éstas pueden influir sobre los aspectos relativos a los hábitos saludables para los integrantes de la pareja en el marco de dicha práctica. Partiendo del supuesto de que el fenómeno en cuestión se halla fundamentalmente influido por factores de carácter cultural, educativo y socioeconómico, se establecerán relaciones entre las características de la población en estudio, las creencias observadas y los patrones de comportamiento sexual detectados. Se trata de un estudio de tipo descriptivo que se realizó sobre una muestra de mujeres embarazadas que asisten al servicio de maternidad del Hospital “Justo José de Urquiza” y a la Nueva Maternidad Concepción de la ciudad de Concepción del Uruguay. Como consecuencia del presente Proyecto se produjeron datos e indicadores que aportan tanto al estudio del problema en términos teóricos como a su aprovechamiento en el marco de futuros programas orientados a la educación de la comunidad en materia de salud sexual y reproductiva. &nbsp

Deep-water sediment transport patterns and basin floor topography in early rift basins: Plio-Pleistocene syn-rift of the Corinth Rift, Greece

Our current understanding on sedimentary deep-water environments is mainly built of information obtained from tectonic settings such as passive margins and foreland basins. More observations from extensional settings are particularly needed in order to better constrain the role of active tectonics in controlling sediment pathways, depositional style and stratigraphic stacking patterns. This study focuses on the evolution of a Plio-Pleistocene deep-water sedimentary system (Rethi-Dendro Formation) and its relation to structural activity in the Amphithea fault block in the Corinth Rift, Greece. The Corinth Rift is an active extensional basin in the early stages of rift evolution, providing perfect opportunities for the study of early deep-water syn-rift deposits that are usually eroded from the rift shoulders due to erosion in mature basins like the Red Sea, North Sea and the Atlantic rifted margin. The depocentre is located at the exit of a structurally controlled sediment fairway, approximately 15 km from its main sediment source and 12 km basinwards from the basin margin coastline. Fieldwork, augmented by digital outcrop techniques (LiDAR and photogrammetry) and clast-count compositional analysis allowed identification of 16 stratigraphic units that are grouped into six types of depositional elements: A—mudstone-dominated sheets, B—conglomerate-dominated lobes, C—conglomerate channel belts and sandstone sheets, D—sandstone channel belts, E—sandstone-dominated broad shallow lobes, F—sandstone-dominated sheets with broad shallow channels. The formation represents an axial system sourced by a hinterland-fed Mavro delta, with minor contributions from a transverse system of conglomerate-dominated lobes sourced from intrabasinal highs. The results of clast compositional analysis enable precise attribution for the different sediment sources to the deep-water system and their link to other stratigraphic units in the area. Structures in the Amphithea fault block played a major role in controlling the location and orientation of sedimentary systems by modifying basin-floor gradients due to a combination of hangingwall tilt, displacement of faults internal to the depocentre and folding on top of blind growing faults. Fault activity also promoted large-scale subaqueous landslides and eventual uplift of the whole fault block. © 2019 The Authors. Basin Research published by International Association of edimentologists and European Association of Geoscientists and Engineers and John Wiley &amp; Sons Lt

Building up or out? Disparate sequence architectures along an active rift margin-Corinth rift, Greece

Early Pleistocene synrift deltas developed along the southern Corinth rift margin were deposited in a single, dominantly lacustrine depocenter and were subject to the same climate-related base-level and sediment supply cyclicity. Two synrift deltas, just 50 km apart, show markedly different sequence geometry and evolution related to their location along the evolving border fault. In the west, strongly aggradational fan deltas (&gt;600 m thick; 2-4 km radius) deposited in the immediate hanging wall of the active border fault comprise stacked 30-100 m thick stratal units bounded by flooding surfaces. Each unit evolves from aggradational to progradational with no evidence for abrupt subaerial exposure or fluvial incision. In contrast, in the central rift, the border fault propagated upward into an already deep lacustrine environment, locating rift-margin deltas 15 km into the footwall. The deltas here have a radius of &gt; 9 km and comprise northward downstepping and offlapping units, 50-200 m thick, that unconformably overlie older synrift sediments and are themselves incised. The key factors driving the marked variation in sequence stratigraphic architecture are: (1) differential uplift and subsidence related to position with respect to the border fault system, and (2) inherited topography that influenced shoreline position and offshore bathymetry. Our work illustrates that stratal units and their bounding surfaces may have only local (&lt;10 km) extent, highlighting the uncertainty involved in assigning chronostratigraphic significance to systems tracts and in calculating base-level changes from stratigraphy where marked spatial variations in uplift and subsidence occur. © 2017 Geological Society of America

Tectono-sedimentary evolution of the Plio-Pleistocene Corinth rift, Greece

The onshore central Corinth rift contains a syn-rift succession &gt;3 km thick deposited in 5–15 km-wide tilt blocks, all now inactive, uplifted and deeply incised. This part of the rift records upward deepening from fluviatile to lake-margin conditions and finally to sub-lacustrine turbidite channel and lobe complexes, and deep-water lacustrine conditions (Lake Corinth) were established over most of the rift by 3.6 Ma. This succession represents the first of two phases of rift development – Rift 1 from 5.0–3.6 to 2.2–1.8 Ma and Rift 2 from 2.2–1.8 Ma to present. Rift 1 developed as a 30 km-wide zone of distributed normal faulting. The lake was fed by four major N- to NE-flowing antecedent drainages along the southern rift flank. These sourced an axial fluvial system, Gilbert fan deltas and deep lacustrine turbidite channel and lobe complexes. The onset of Rift 2 and abandonment of Rift 1 involved a 30 km northward shift in the locus of rifting. In the west, giant Gilbert deltas built into a deepening lake depocentre in the hanging wall of the newly developing southern border fault system. Footwall and regional uplift progressively destroyed Lake Corinth in the central and eastern parts of the rift, producing a staircase of deltaic and, following drainage reversal, shallow marine terraces descending from &gt;1000 m to present-day sea level. The growth, linkage and death of normal faults during the two phases of rifting are interpreted to reflect self-organization and strain localization along co-linear border faults. In the west, interaction with the Patras rift occurred along the major Patras dextral strike-slip fault. This led to enhanced migration of fault activity, uplift and incision of some early Rift 2 fan deltas, and opening of the Rion Straits at ca. 400–600 ka. The landscape and stratigraphic evolution of the rift was strongly influenced by regional palaeotopographic variations and local antecedent drainage, both inherited from the Hellenide fold and thrust belt. © 2017 The Authors. Basin Research © 2017 John Wiley &amp; Sons Ltd, European Association of Geoscientists &amp; Engineers and International Association of Sedimentologist

Myths of neoconservatism: George W. Bush's "neo-conservative" foreign policy revisited

The objective of this article is to refute the popular and influential view that neoconservatism is the driving force behind US foreign policy under George W. Bush. In fact, neoconservatism — properly understood — has been a marginal influence on a foreign policy, which has been characterized primarily by a different kind of conservative ideology. In order to demonstrate this, the article firstly seeks clearly to define contemporary neoconservatism in the foreign policy context; it then goes on to examine the Bush foreign policy and its key elements. What all this reveals is that US policy has been more driven by nationalist impulses than neoconservative ones. Indeed, those like Stefan Halper and Jonathan Clarke who argue that neoconservatism has been the key component shaping the Bush outlook, not only exaggerate the influence of one particular ideology but underestimate the importance of other key factors determining American policy since 2001