scholarly journals Forebulge migration in the foreland basin system of the central‐southern Apennine fold‐thrust belt (Italy): new high‐resolution Sr‐isotope dating constraints

2021 ◽  
Author(s):  
Monia Sabbatino ◽  
Stefano Tavani ◽  
Stefano Vitale ◽  
Kei Ogata ◽  
Amerigo Corradetti ◽  
...  
Keyword(s):  
High Resolution ◽  
Foreland Basin ◽  
Thrust Belt ◽  
Sr Isotope ◽  
Isotope Dating ◽  
Basin System

Berriasian-Aptian shallow water carbonates in the Zagros fold-thrust belt, SW Iran: Integrated Sr-isotope dating and biostratigraphy

2016 ◽  
Vol 57 ◽  
pp. 257-288 ◽  
Author(s):  
Seyedabolfazl Hosseini ◽  
Marc A. Conrad ◽  
Bernard Clavel ◽  
Nicolaos Carras
Keyword(s):  
Shallow Water ◽  
Thrust Belt ◽  
Sr Isotope ◽  
Sw Iran ◽  
Isotope Dating

scholarly journals Cenozoic sedimentation and exhumation of the foreland basin system preserved in the Precordillera thrust belt (31-32°S), southern central Andes, Argentina

Tectonics ◽  
2014 ◽  
Vol 33 (9) ◽  
pp. 1659-1680 ◽  
Author(s):  
Mariya Levina ◽  
Brian K. Horton ◽  
Facundo Fuentes ◽  
Daniel F. Stockli
Keyword(s):  
Foreland Basin ◽  
Central Andes ◽  
Thrust Belt ◽  
Southern Central ◽  
Basin System

scholarly journals Mesoproterozoic−Early Cretaceous provenance and paleogeographic evolution of the Northern Rocky Mountains: Insights from the detrital zircon record of the Bridger Range, Montana, USA

2020 ◽  
Author(s):  
Chance B. Ronemus ◽  
Devon A. Orme ◽  
Saré Campbell ◽  
Sophie R. Black ◽  
John Cook
Keyword(s):  
Early Cretaceous ◽  
Detrital Zircon ◽  
Foreland Basin ◽  
Mountain Range ◽  
Thrust Belt ◽  
Sediment Sources ◽  
Middle Cambrian ◽  
Sediment Dispersal ◽  
Northern Rocky Mountains ◽  
Basin System

The Bridger Range of southwest Montana, USA, preserves one of the most temporally extensive sedimentary sections in North America, with strata ranging from Mesoproterozoic to Cretaceous in age. This study presents new detrital zircon geochronologic data from eight samples collected across this mountain range. Multidimensional scaling and non-negative matrix factorization statistical analyses are used to quantitatively unmix potential sediment sources from these and 54 samples compiled from previous studies on regional correlative strata. We interpret these sources based on reference data from preserved strata with detrital zircon signatures likely representative of ancient sediment sources. We link these sources to their sinks along sediment dispersal pathways interpreted using available paleogeographic constraints. Our results show that Mesoproterozoic strata in southwest Montana contain detritus derived from the nearby craton exposed along the southern margin of the fault-bounded Helena Embayment. Middle Cambrian strata were dominated by the recycling of local sources eroded during the development of the Great Unconformity. In Devonian−Pennsylvanian time, provenance in southwest Montana shifted to more distal sources along the northeastern to southeastern margins of Laurentia, but more western basins received detritus from outboard sources along a tectonically complicated margin. By the Late Jurassic, provenance in the developing retroarc foreland basin system was dominated by Cordilleran magmatic arcs and fold-thrust belt sources to the west. Eastward propagation of the fold-thrust belt caused recycling of Paleozoic and Jurassic detritus into the foreland basin to dominate by the Early Cretaceous.

Spatial-temporal migration of the central-southern Apennine belt and foreland basin system (Italy) constrained by Sr-isotope stratigraphy

2021 ◽  
Author(s):  
Monia Sabbatino ◽  
Stefano Tavani ◽  
Stefano Vitale ◽  
Amerigo Corradetti ◽  
Lorenzo Consorti ◽  
...  
Keyword(s):  
Shallow Water ◽  
Rapid Evolution ◽  
Foreland Basin ◽  
Carbonate Sediments ◽  
Sr Isotope ◽  
Fold And Thrust Belt ◽  
Lithostratigraphic Units ◽  
Isotope Stratigraphy ◽  
Back Arc ◽  
Basin System

<p>The Apennines form an active fold and thrust belt that develops as part of the W-Mediterranean subduction zone. The evolution of the collisional system is driven by the retreating subduction of the alpine Tethys, which has caused the migration of compressive fronts and the opening of the Liguro-Provençal and Tyrrhenian back-arc basins, along with the rotation and translation of the Sardinia-Corsica and Calabria blocks. The Apennines make the northern limb of the Apennines-Calabria-Sicily orocline, developed due to the differential SE-ward retreat of the subduction system. In such a context, the central-southern Apennine system develops a foreland basin floored by a subaerial forebulge unconformity followed by a trinity of diachronous lithostratigraphic units: (i) shallow-water carbonates, (ii) hemipelagic marls, and (iii) siliciclastic turbidites. Previous studies have used the following datasets for reconstructing the evolution of the orogenic-foreland basin system: paleomagnetic data;  the age of the siliciclastic syn-orogenic deposits filling the foredeep and wedge-top depozones; the age of the late-orogenic extensional basins. In this study, we highlight the importance of dating with high precision the onset of the Apennine orogenesis by means of Sr-isotope stratigraphy applied to the first carbonate sediments overlying the forebulge unconformity. In this regard, we have investigated a transect of the Apennine belt, extending from inner to outer sectors, in order to constrain the timing and style of migration of the belt and foreland basin. Our results show progressive rejuvenation of the forebulge unconformity toward the outer portions of the belt. More importantly, we highlight a time delay between the onset of syn-orogenic shallow-water carbonate deposition and the onset of siliciclastic turbidite deposition that ranges between 1 and 11 myr. In detail, the trends in the delay point at three main evolutive steps: 1) rapid evolution from forebulge to foredeep during the Burdigalian, 2) higher delays from the Serravallian until the latest Miocene, and 3) progressive decrease of the delay from the Zanclean. We associate the different velocity of migration with the differential slab retreat and spreading of the back-arc basins.</p>

Deep controls on foreland basin system evolution along the Sicilian fold and thrust belt

2015 ◽  
Vol 186 (4-5) ◽  
pp. 273-290 ◽  
Author(s):  
Maurizio Gasparo Morticelli ◽  
Vera Valenti ◽  
Raimondo Catalano ◽  
Attilio Sulli ◽  
Mauro Agate ◽  
...  
Keyword(s):  
Foreland Basin ◽  
Thrust Belt ◽  
Main Thrust ◽  
Early Pliocene ◽  
System Evolution ◽  
Upper Miocene ◽  
Fold And Thrust Belt ◽  
Thrust Tectonics ◽  
Basin System ◽  
Late Tortonian

Abstract Neogene-Quaternary wedge-top-basins arose during the Sicilian fold and thrust belt (FTB) build-up. The infilling sedimentary successions are: i) middle-upper Miocene silicoclastics succession, accommodated on top of the accreted Sicilide and Numidian flysch nappes; ii) upper Miocene-lower Pliocene deepening-upwards sediments unconformably overlying the inner Meso-Cenozoic deep-water, Imerese and Sicanian thrust units; iii) Upper Pliocene-Quaternary coastal-open shelf deposits unconformably covering (in the outer sector of the FTB) a tectonic stack (Gela thrust system). These successions are characterized by a basal unconformity on the deformed substrate believed to be the depositional interface common both to the coeval wedge-top and foredeep basins. The tectono-sedimentary evolution of the syn-tectonic basins was controlled by the progressive deepening of the structural levels, which were active during the growing of the FTB. The palinspastic restoration of a crustal geological transect in central Sicily points to: i) the occurrence of two subsequent, basal main thrusts (MT1 and MT2) active during the Neogene-middle Pleistocene tectonic evolution, as well as ii) a decrease in slip- and shortening-rate, estimated for the later MT2 as compared to earlier MT1 basal main thrust. The foreland-basin system evolution recorded during these two steps suggests: – the regional lithofacies distribution, during late Tortonian-early Pliocene, accounted for a wide depozone including the Iblean plateau and its offshore;– a crucial change was recorded by the late Pliocene-Pleistocene wedge-top depozone, when the deeper basal main thrust (MT2) involved and thickened (in the inner sector of the FTB) the crystalline basement (thin- to thick-skinned thrust tectonics); this change influenced the depozones, progressively narrowing up to the present-day setting. As regards this general evolutionary framework, thin-skinned and thick-skinned thrust tectonics can be recognized in the Sicilian FTB evolution. The late Tortonian-early Pliocene, thin-skinned thrust tectonics include two main tectonic events, a “shallow-seated” Event 1 and a “deep-seated” Event 2, with the Pliocene-Pleistocene thick-skinned thrust tectonics representing a third tectonic event (Event 3).

Sediment provenance in contractional orogens: The detrital zircon record from modern rivers in the Andean fold-thrust belt and foreland basin of western Argentina

2017 ◽  
Vol 479 ◽  
pp. 83-97 ◽  
Author(s):  
Tomas N. Capaldi ◽  
Brian K. Horton ◽  
N. Ryan McKenzie ◽  
Daniel F. Stockli ◽  
Margaret L. Odlum
Keyword(s):  
Detrital Zircon ◽  
Foreland Basin ◽  
Sediment Provenance ◽  
Thrust Belt
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