The geological map of the Sheet 396 “San Severo”, here presented at the scale 1: 50.000, was inve... more The geological map of the Sheet 396 “San Severo”, here presented at the scale 1: 50.000, was investigated and surveyed using offi cial topographic maps at the scale 1: 25.000. The fi eld work benefi ts also of unpublished stratigraphic and tectonic data belonging to a doctoral thesis in sedimentary geology (Spalluto, 2004). The investigated area lies in the northern part of the Puglia region (southeastern Italy) and belongs to two main geographic and geologic domains: a) the Apulian Foreland (western sector of the Gargano Promontory) and the Bradanic Foredeep (northern sector of the Tavoliere delle Puglie). The two sectors represent respectively the foreland and the foredeep areas of the Southern Apennines chain. Stratigraphic data collected during the survey of the Foglio San Severo produced a strong revision of the lithostratigraphy of the area respect the previous edition of the Geologic Map of Italy (scale 1:100.000) for both Meso-Cenozoic and Quaternary units. The resulting new...
A steep rocky slope characterizes the eastern coasts of the Salento peninsula (Southern Italy), w... more A steep rocky slope characterizes the eastern coasts of the Salento peninsula (Southern Italy), where Cretaceous to Pleistocene limestones crop out. This rocky slope connects a wide flat area, about 100 m in elevation, to the cliffed coast of the Otranto Strait (Ionian Sea). Stratigraphic and sedimentologic analyses have been carried out on an upper Pliocene-lower Pleistocene carbonate unit (the Calcarenite di Gravina Fm.) cropping out along the coast inside some indentations of the rocky slope. This carbonate unit forms small isolated bodies with a variable thickness (up to several tens of metres), and is composed mainly of floatstones and packstones with coarse-grained bioclasts. Successions are characterized by long basinwarddipping well laminated and stratified clinobeds. These clinobeds are cut by irregular gullies (some meters in width), filled in their lower part by chaotic deposits (debris flow and slide deposits), and tens of meters in length slump scars. Backsets made up o...
In the eastern sector of the Salento peninsula (Southern Italy), a steep rocky slope, where Creta... more In the eastern sector of the Salento peninsula (Southern Italy), a steep rocky slope, where Cretaceous to Pleistocene limestones crop out, connects a wide flat area, about 100 m in elevation, to the coast of the Otranto Strait (Ionian Sea). Along the rocky slope, tectonized pre-Pliocene units played a morphostructural role for the depositional features of younger carbonates. Stratigraphic and sedimentologic analyses have been carried out on an upper Pliocene-lower Pleistocene carbonate unit (the Calcarenite di Gravina Fm.) cropping out along the coast inside some indentations of the rocky slope. Facies features and stratigraphic geometries of this carbonate unit indicate a deposition along a slope and at its toe. In fact, these deposits form small isolated bodies with a variable thickness (up to several tens of metres), and are composed mainly of floatstones and packstones with coarse-grained bioclasts. The successions are characterized by long basinward-dipping well laminated and s...
Stratigraphic and sedimentologic analyses have been carried out on the upper Pliocene - lower Ple... more Stratigraphic and sedimentologic analyses have been carried out on the upper Pliocene - lower Pleistocene Calcarenite di Gravina Fm., a carbonate unit cropping out along the coastal sectors of the eastern Salento Peninsula (Southern Italy). The Calcarenite di Gravina Fm. usually shows shoreface to offshore transition facies associations being a trangressive unit deposited mainly on a low-angle ravinement surface. In the study area, the Calcarenite di Gravina Fm. crops out inside some indentations of the rocky slope (made up of tectonized pre-Pliocene units) showing very unusual sedimentological features. In fact, the Calcarenite di Gravina Fm. occurs in small isolated bodies with a variable thickness (up to several tens of metres), and is composed mainly of coarse-grained, bioclastic floatstones and packstones. The successions are characterized by long basinward-dipping well laminated and stratified clinobeds. The latter developed thanks to grain flows, moving either bioclasts due t...
... Vincenzo Del Gaudio, Massimo Moretti, Giuseppe Baldassarre Dipartimento di Scienze della Terr... more ... Vincenzo Del Gaudio, Massimo Moretti, Giuseppe Baldassarre Dipartimento di Scienze della Terra e Geoambientali, Università di Bari. ... Salvi, S., Quattrocchi, F., Brunori, CA, Doumaz, F., Angelone, M., Billi, A., Buongiorno, F., Funiciello, R., Guerra, M., Mele, G., Pizzino, L., Salvini ...
ABSTRACT The Tavoliere di Puglia is the third largest plain in Italy (surface area is about 3.500... more ABSTRACT The Tavoliere di Puglia is the third largest plain in Italy (surface area is about 3.500 Km2) and is located between the southern Appenninic Chain (Subappenino dauno) and the Apulian foreland (Gargano promontory). From a geological point of view, the Tavoliere di Puglia plain represents the northern sector of the southern Appenninic Plio-Pleistocene foredeep known as Bradanic trough. In the lower Pleistocene, the area was subjected to a phase of subsidence (with a rate in the order of 1 mm/y), while, from middle Pleistocene to present-day, a moderate uplift phase occurred. Data field from the survey for the new Geological Map of Italy (C.A.R.G. Project) and analyses carried out on well logs allowed the detailed study of the latest phases of sedimentation during the regional uplift of the northern sector of the Bradanic trough. The geological survey was carried out in an area (408 “San Bartolomeo” and 396 “San Severo” Sheets of the new Geological Map of Italy -1:50.000 scale) that covers the entire Plio-Pleistocene foredeep extending from the external thrust sheets of the Subappennino dauno to the western Gargano highs. This paper presents only the data collected during the survey of the middle upper Pleistocene deposits: they are marine, transitional and continental deposits and are clearly terraced at different elevations above present sea level. They lie on unconformity surfaces above older units represented mainly by Miocene Apenninic units in the western sectors, Plio-Pleistocene argille subappenine unit in the foredeep area and carbonatic Mesozoic-Cenozoic units in the western Gargano area. The recognition of unconformity surfaces of great lateral extent allowed us to distinguish 7 different synthems grouped in the Tavoliere di Puglia supersynthem. Some synthems contain a lower marine and/or transitional subsynthem and an upper alluvial subsynthem separated by an unconformity surface. Marine and transitional subsynthems crop out in the eastern part of the study area (close to San Severo and Apricena area) and are represented mainly by coarsening-upward successions deposited in deltaic, proximal marine and low-energy protected embayment settings. In the western and higher sectors, alluvial subsynthems occur; they contain coarsening-upward successions of (proximal to distal) alluvial fan environments passing eastward to braided and coastal alluvial plain environments. Lateral facies changes can be followed gradually from areas next to the chain toward the eastern foreland areas. Facies changes can be observed also comparing synthems of different ages: for example, alluvial facies observed at the same distance from the chain are coarser-grained in the older synthems and finer-grained in the younger ones; the basal unconformity of different alluvial synthems show similar features: it is very inclined to the East in older synthems and becomes gradually less steep for the younger ones. Our data show that the Tavoliere di Puglia supersynthem represents a complex assemblage of marine and alluvial terraced deposits that records the interaction between regional uplift and sea-level changes. We propose a new set of detailed paleogeographic evolutionary stages for the northern sector of the Bradanic trough during middle and upper Pleistocene. In addition, these data allow us to compare the Tavoliere di Puglia plain and southern Bradanic trough evolutions
The geological map of the Sheet 396 “San Severo”, here presented at the scale 1: 50.000, was inve... more The geological map of the Sheet 396 “San Severo”, here presented at the scale 1: 50.000, was investigated and surveyed using offi cial topographic maps at the scale 1: 25.000. The fi eld work benefi ts also of unpublished stratigraphic and tectonic data belonging to a doctoral thesis in sedimentary geology (Spalluto, 2004). The investigated area lies in the northern part of the Puglia region (southeastern Italy) and belongs to two main geographic and geologic domains: a) the Apulian Foreland (western sector of the Gargano Promontory) and the Bradanic Foredeep (northern sector of the Tavoliere delle Puglie). The two sectors represent respectively the foreland and the foredeep areas of the Southern Apennines chain. Stratigraphic data collected during the survey of the Foglio San Severo produced a strong revision of the lithostratigraphy of the area respect the previous edition of the Geologic Map of Italy (scale 1:100.000) for both Meso-Cenozoic and Quaternary units. The resulting new...
A steep rocky slope characterizes the eastern coasts of the Salento peninsula (Southern Italy), w... more A steep rocky slope characterizes the eastern coasts of the Salento peninsula (Southern Italy), where Cretaceous to Pleistocene limestones crop out. This rocky slope connects a wide flat area, about 100 m in elevation, to the cliffed coast of the Otranto Strait (Ionian Sea). Stratigraphic and sedimentologic analyses have been carried out on an upper Pliocene-lower Pleistocene carbonate unit (the Calcarenite di Gravina Fm.) cropping out along the coast inside some indentations of the rocky slope. This carbonate unit forms small isolated bodies with a variable thickness (up to several tens of metres), and is composed mainly of floatstones and packstones with coarse-grained bioclasts. Successions are characterized by long basinwarddipping well laminated and stratified clinobeds. These clinobeds are cut by irregular gullies (some meters in width), filled in their lower part by chaotic deposits (debris flow and slide deposits), and tens of meters in length slump scars. Backsets made up o...
In the eastern sector of the Salento peninsula (Southern Italy), a steep rocky slope, where Creta... more In the eastern sector of the Salento peninsula (Southern Italy), a steep rocky slope, where Cretaceous to Pleistocene limestones crop out, connects a wide flat area, about 100 m in elevation, to the coast of the Otranto Strait (Ionian Sea). Along the rocky slope, tectonized pre-Pliocene units played a morphostructural role for the depositional features of younger carbonates. Stratigraphic and sedimentologic analyses have been carried out on an upper Pliocene-lower Pleistocene carbonate unit (the Calcarenite di Gravina Fm.) cropping out along the coast inside some indentations of the rocky slope. Facies features and stratigraphic geometries of this carbonate unit indicate a deposition along a slope and at its toe. In fact, these deposits form small isolated bodies with a variable thickness (up to several tens of metres), and are composed mainly of floatstones and packstones with coarse-grained bioclasts. The successions are characterized by long basinward-dipping well laminated and s...
Stratigraphic and sedimentologic analyses have been carried out on the upper Pliocene - lower Ple... more Stratigraphic and sedimentologic analyses have been carried out on the upper Pliocene - lower Pleistocene Calcarenite di Gravina Fm., a carbonate unit cropping out along the coastal sectors of the eastern Salento Peninsula (Southern Italy). The Calcarenite di Gravina Fm. usually shows shoreface to offshore transition facies associations being a trangressive unit deposited mainly on a low-angle ravinement surface. In the study area, the Calcarenite di Gravina Fm. crops out inside some indentations of the rocky slope (made up of tectonized pre-Pliocene units) showing very unusual sedimentological features. In fact, the Calcarenite di Gravina Fm. occurs in small isolated bodies with a variable thickness (up to several tens of metres), and is composed mainly of coarse-grained, bioclastic floatstones and packstones. The successions are characterized by long basinward-dipping well laminated and stratified clinobeds. The latter developed thanks to grain flows, moving either bioclasts due t...
... Vincenzo Del Gaudio, Massimo Moretti, Giuseppe Baldassarre Dipartimento di Scienze della Terr... more ... Vincenzo Del Gaudio, Massimo Moretti, Giuseppe Baldassarre Dipartimento di Scienze della Terra e Geoambientali, Università di Bari. ... Salvi, S., Quattrocchi, F., Brunori, CA, Doumaz, F., Angelone, M., Billi, A., Buongiorno, F., Funiciello, R., Guerra, M., Mele, G., Pizzino, L., Salvini ...
ABSTRACT The Tavoliere di Puglia is the third largest plain in Italy (surface area is about 3.500... more ABSTRACT The Tavoliere di Puglia is the third largest plain in Italy (surface area is about 3.500 Km2) and is located between the southern Appenninic Chain (Subappenino dauno) and the Apulian foreland (Gargano promontory). From a geological point of view, the Tavoliere di Puglia plain represents the northern sector of the southern Appenninic Plio-Pleistocene foredeep known as Bradanic trough. In the lower Pleistocene, the area was subjected to a phase of subsidence (with a rate in the order of 1 mm/y), while, from middle Pleistocene to present-day, a moderate uplift phase occurred. Data field from the survey for the new Geological Map of Italy (C.A.R.G. Project) and analyses carried out on well logs allowed the detailed study of the latest phases of sedimentation during the regional uplift of the northern sector of the Bradanic trough. The geological survey was carried out in an area (408 “San Bartolomeo” and 396 “San Severo” Sheets of the new Geological Map of Italy -1:50.000 scale) that covers the entire Plio-Pleistocene foredeep extending from the external thrust sheets of the Subappennino dauno to the western Gargano highs. This paper presents only the data collected during the survey of the middle upper Pleistocene deposits: they are marine, transitional and continental deposits and are clearly terraced at different elevations above present sea level. They lie on unconformity surfaces above older units represented mainly by Miocene Apenninic units in the western sectors, Plio-Pleistocene argille subappenine unit in the foredeep area and carbonatic Mesozoic-Cenozoic units in the western Gargano area. The recognition of unconformity surfaces of great lateral extent allowed us to distinguish 7 different synthems grouped in the Tavoliere di Puglia supersynthem. Some synthems contain a lower marine and/or transitional subsynthem and an upper alluvial subsynthem separated by an unconformity surface. Marine and transitional subsynthems crop out in the eastern part of the study area (close to San Severo and Apricena area) and are represented mainly by coarsening-upward successions deposited in deltaic, proximal marine and low-energy protected embayment settings. In the western and higher sectors, alluvial subsynthems occur; they contain coarsening-upward successions of (proximal to distal) alluvial fan environments passing eastward to braided and coastal alluvial plain environments. Lateral facies changes can be followed gradually from areas next to the chain toward the eastern foreland areas. Facies changes can be observed also comparing synthems of different ages: for example, alluvial facies observed at the same distance from the chain are coarser-grained in the older synthems and finer-grained in the younger ones; the basal unconformity of different alluvial synthems show similar features: it is very inclined to the East in older synthems and becomes gradually less steep for the younger ones. Our data show that the Tavoliere di Puglia supersynthem represents a complex assemblage of marine and alluvial terraced deposits that records the interaction between regional uplift and sea-level changes. We propose a new set of detailed paleogeographic evolutionary stages for the northern sector of the Bradanic trough during middle and upper Pleistocene. In addition, these data allow us to compare the Tavoliere di Puglia plain and southern Bradanic trough evolutions
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