I depositi Plio-Pleistocenici di Valle Incisa del torrente Ambra (Toscana, Italia) : interazione tra tettonica e sedimentazione.

The Pleistocene fluvial succession of the Ambra River, located along the Southern margin of the Chianti Ridge (Tuscany, Italy). The modern Ambra River drains toward NE, whereas, during the Early Pleistocene, the paleo-Ambra drained toward SW, as documented by a well-developed, 60-70 m thick valley-fill succession. Valley-fill aggradation was promoted by an increase in sediment supplied from the source area, and was not forced by any relative sea-level rise (Aldinucci et al., 2007), as attested by the distance from and elevation on the Pleistocene coastline, along with the presence of several rocky thresholds. The paleovalley trends almost in a NS direction and develops across a NE dipping, sin-sedimentary normal fault. Downstream of the fault zone, the valley fill consists of two main gravel-dominated intervals separated by an unconformity surface. The present study focuses on the uppermost interval of the valley-fill succession. These deposits have been examined through a detailed geological and geomorphological mapping (1:10.000 scale), facies analyses (bed-by-bed logging), paleocurrents measurement, geophysics investigations (ERT: Electric Resistivity Tomography) and structural analyses. Downstream of the fault zone, the upper valley fill consists of well-stratified, gravel-bed river deposits lacking any floodplain mud. Upstream of the fault zone, the upper valley fill is made of floodplain organic-rich mud hosting channelized sandy bodies. The intense CO2 emission affecting the fault area indicates a recent tectonic activity, whereas deformations of the gravels in the lower part of the valley-fill succession, point to a post-depositional fault activity, which reasonably occurred during accumulation of the upper valley-fill deposits. Such hypothesis is consistent with the significant changes affecting the upper valley-fill deposits across the fault zone (i.e. sandy to muddy upstream of the fault and gravelly downstream of the fault). These modifications in fluvial depositional styles fit with those described by Holbrook and Schumm (1999) in the framework of interaction between fluvial sedimentation and longitudinal modifications of riverine profile induced by epeirogenic movements. In particular, tectonic warping caused a decrease in transport capability, with consequent aggradation of fine-grained deposits in the upstream reaches of the paleovalley. On the contrary, downstream of the upwarped area aggradation of gravely facies occurred as consequence of increase transport capability due to steepening of the riverine profile. In order to determine the age of tectonic deformation, a paleomagnetic study has been carried out on the fine-grained deposits. This study allowed to ascribe the study deposits to the Olduvai subchron

Testicular torsion in adults: which news?

this paper reported interesting findings about long time results of patients treated for testicular torsion focusing on volume and fertilit

Geological map of Pliocene-Pleistocene deposits of the Ambra and Ombrone valleys (Northern Siena Basin, Tuscany, Italy)

The study area is located across the Chianti Ridge (Tuscany, Italy), between the Upper Valdarno Basin and the Siena Basin. This area covers about 25 km, forming a narrow belt oriented N-S and drained by the Ambra and Ombrone creeks, which flow northward and southward, respectively. Field mapping was carried out at 1:10,000 scale through an allostratigraphic-sedimentological approach. The study area deposits represent the infill of a SW-draining paleovalley, cut both in pre-Neogene bedrock and marine Pliocene deposits of the Siena Basin. The valley-fill succession consists of two main allounits (V1 and V2), which are conformably stacked in the northern sector of the study area, and unconformably offset in the southern sector. V1 comprises gravelly to sandy fluvial deposits, whereas V2 deposits show noticeable downvalley variability. V2 consists of poorly drained floodplain deposits in the northern sector of the paleovalley, whereas gravel and sand-bed river deposits fill its southern part. Alluvial-fan and palustrine deposits are also associated with V2 fluvial facies. A normal fault trending NW-SE is the main structural feature of the area. This fault cuts the V2 unit lowering the upstream reach and is thought to have promoted the marked facies changes observed in the fluvial deposits of unit V2

Stratigraphy of the Carnian \u2013 Norian Calcari con Selce in the Lagonegro Basin (Southern Apennines) and correlation with the Sicani Basin

7nonenoneManuel Rigo; Nereo Preto; Nicola Boscaini; Andrea Cognolato; Marco Franceschi; Chiara Guaiumi; Giacomo OstiRigo, Manuel; Preto, Nereo; Boscaini, Nicola; Cognolato, Andrea; Franceschi, Marco; Guaiumi, Chiara; Osti, Giacom

Geological map of Pliocene-Pleistocene deposits of the Ambra and Ombrone valleys (Northern Siena Basin, Tuscany, Italy)

The study area is located across the Chianti Ridge (Tuscany, Italy), between the Upper Valdarno Basin and the Siena Basin. This area covers about 25 km, forming a narrow belt oriented N-S and drained by the Ambra and Ombrone creeks, which flow northward and southward, respectively. Field mapping was carried out at 1:10,000 scale through an allostratigraphic-sedimentological approach. The study area deposits represent the infill of a SW-draining paleovalley, cut both in pre-Neogene bedrock and marine Pliocene deposits of the Siena Basin. The valley-fill succession consists of two main allounits (V1 and V2), which are conformably stacked in the northern sector of the study area, and unconformably offset in the southern sector. V1 comprises gravelly to sandy fluvial deposits, whereas V2 deposits show noticeable downvalley variability. V2 consists of poorly drained floodplain deposits in the northern sector of the paleovalley, whereas gravel and sand-bed river deposits fill its southern part. Alluvial-fan and palustrine deposits are also associated with V2 fluvial facies. A normal fault trending NW-SE is the main structural feature of the area. This fault cuts the V2 unit lowering the upstream reach and is thought to have promoted the marked facies changes observed in the fluvial deposits of unit V2

Increased left parietal volumes relate to delayed language development in autism: a structural mri study

The neural basis of language and motor deficits in autism is still not completely clear. The aim of this study was to explore the involvement of the parietal lobe in language and motor development in autism, in view of the recognized role of this region in language and imitation functions. Twenty-eight autistic children underwent an extensive clinical assessment and an MRI examination. A significant direct correlation between age at first word and left parietal gray matter volumes was found (r=0.50, p=0.007). Conversely, age at reaching milestones of motor development, such as the ability to sit and to walk unaided, was not significantly associated with parietal size, after correcting for chronological age and for gender. To the best of our knowledge, this is the first structural MRI report demonstrating a role of left parietal gray matter volumes in delayed language development in autistic children representative of the 'real world' autistic population

Increased Parietal Volumes Relate To Delayed Language Development In Autism: A Structural MRI Study

The neural basis of language and motor deficits in autism is still not completely clear. The aim of this study was to explore the involvement of the parietal lobe in language and motor development in autism, in view of the recognized role of this region in language and imitation functions. Twenty-eight autistic children underwent an extensive clinical assessment and an MRI examination. A significant direct correlation between age at first word and left parietal gray matter volumes was found (r=0.50, p=0.007). Conversely, age at reaching milestones of motor development, such as the ability to sit and to walk unaided, was not significantly associated with parietal size, after correcting for chronological age and for gender. To the best of our knowledge, this is the first structural MRI report demonstrating a role of left parietal gray matter volumes in delayed language development in autistic children representative of the 'real world' autistic population

Increased left parietal volumes relate to delayed language development in autism: a structural MRI study

The neural basis of language and motor deficits in autism is still not completely clear. The aim of this study was to explore the involvement of the parietal lobe in language and motor development in autism, in view of the recognized role of this region in language and imitation functions. Twenty-eight autistic children underwent an extensive clinical assessment and an MRI examination. A significant direct correlation between age at first word and left parietal gray matter volumes was found (r=0.50, p=0.007). Conversely, age at reaching milestones of motor development, such as the ability to sit and to walk unaided, was not significantly associated with parietal size, after correcting for chronological age and for gender. To the best of our knowledge, this is the first structural MRI report demonstrating a role of left parietal gray matter volumes in delayed language development in autistic children representative of the ‘real world’ autistic populatio