scholarly journals Tectono‐sedimentary evolution of transverse extensional faults in a foreland basin: Response to changes in tectonic plate processes

2020 ◽  
Vol 32 (6) ◽  
pp. 1388-1412 ◽  
Author(s):  
Emilio Carrillo ◽  
Ander Guinea ◽  
Albert Casas ◽  
Lluis Rivero ◽  
Nicole Cox ◽  
...  
Keyword(s):  
Foreland Basin ◽  
Tectonic Plate ◽  
Sedimentary Evolution ◽  
Basin Response

Paleogeographic and sedimentary evolution of the South Pyrenean foreland basin

2020 ◽  
Vol 113 ◽  
pp. 104105 ◽  
Author(s):  
Miguel Garcés ◽  
Miguel López-Blanco ◽  
Luis Valero ◽  
Elisabet Beamud ◽  
Josep Anton Muñoz ◽  
...  
Keyword(s):  
Foreland Basin ◽  
The South ◽  
Sedimentary Evolution

scholarly journals Sedimentary evolution of the foreland basin in the NE Tibetan Plateau and the growth of the Qilian Shan since 7 Ma

2019 ◽  
Vol 131 (9-10) ◽  
pp. 1744-1760 ◽  
Author(s):  
Xiaofei Hu ◽  
Dianbao Chen ◽  
Baotian Pan ◽  
Jinjun Chen ◽  
Jian Zhang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Foreland Basin ◽  
Sedimentary Facies ◽  
Coarse Grained ◽  
Spatiotemporal Pattern ◽  
Sedimentary Sequence ◽  
Long Distance ◽  
Abrupt Decrease ◽  
Sedimentary Evolution ◽  
Ne Tibetan Plateau

AbstractWe studied the magnetostratigraphy and sedimentary facies of a 550-m-long drill core from the Jiudong Basin in the NE Tibetan Plateau. Our aims were to reconstruct the late Cenozoic sedimentary evolution of this foreland basin, and to determine the spatiotemporal pattern of growth of the Qilian Shan. The magnetostratigraphy indicates that the sedimentary sequence was deposited during ca. 7–0 Ma. From ca. 6.7–3.0 Ma, the sediment accumulation rate increased gradually from ∼30 mm/k.y. to 120 mm/k.y., which was associated with the gradual evolution of sedimentary facies from a shallow lake/delta front to braided rivers. The progradation of the depositional system from 7 Ma to 3 Ma probably reflects the growth of the relief of the Qilian Shan caused by tectonic uplift. The occurrence of a continuous braided river environment from 3 Ma to the present suggests that the high relief of the Qilian Shan developed before 3 Ma. An abrupt decrease of the sedimentation rate to ∼46 mm/k.y. during 3.0–1.8 Ma, and the deposition of coarse-grained sediments, indicates the uplift of the basin center. We interpret this to reflect the propagation of the thrust system of the Qilian Shan into the basin along a southward-dipping décollement from ca. 3 Ma. Climatic changes may have influenced the sedimentary sequence by introducing long-distance-transported thin coarse sand/gravel layers which are sandwiched within the sequence, and likely were a response to cooling events or climatic transitions. The widespread occurrence of deformation within the basin region in the NE Tibetan Plateau at ca. 3 Ma indicates that this date marks the basinward growth of the deformation system.

The Barreme Basin and the Gevaudan diapir - an example of the interplay between compressional tectonics and salt diapirism

2020 ◽  
Author(s):  
Rod Graham ◽  
Adam Csicsek
Keyword(s):  
Foreland Basin ◽  
Finite Geometry ◽  
Driving Mechanism ◽  
Salt Diapirism ◽  
Sedimentary Evolution ◽  
Tectonic History ◽  
Thrust Belts ◽  
Fold And Thrust Belt ◽  
History Of

<p><strong>The Barreme Basin and the Gevaudan diapir - an example of the interplay between compressional tectonics and salt diapirism </strong></p><p><strong> </strong></p><p><strong>Adam Csicsek and Rod Graham</strong></p><p>Imperial College London</p><p><strong> </strong></p><p>Our understanding of the role of salt diapirism in determining the finite geometry of fold and thrust belts has grown apace in the last few years, but the interplay between the two remains a significant problem for structural interpretation. The Gevaudan diapir in the fold and thrust belt of the sub-Alpine chain of Haute Provence is well known and has been documented by numerous eminent alpine structural geologists. Graciansky, Dardot, Mascle, Gidon and Lickorish and Ford have all described and illustrated the geometry and evolution of the structure, and Lickorish and Ford’s interpretation is figured as an example of  diapirism  in a compressional setting by Jackson and Hudec in their text on salt tectonics. We review these various interpretations and present another.</p><p>The differences between the various interpretations say much about the complex interplay of salt diapirism and thin-skinned thrusting and have profound implications for the way we interpret the tectonic and sedimentary evolution of the Barreme basin which lies adjacent to the diapir</p><p>The Barreme basin is a thrust-top fragment of the Provencal foreland basin and has been described in detail from both sedimentological (e.g. Evans and Elliott, 1999) and structural (e.g. Antoni and Meckel, 1997) points of view. Here we make the case that it is also a salt related minibasin - a secondary minibasin developed on a now welded allochthonous Middle Cretaceous salt canopy.  We believe that within the basin it is possible to interpret successive depocentres which may record progressive salt withdrawal. We argue that though thrust loading must be the fundamental driving mechanism responsible for salt movement late in the tectonic history of the region, thrusting has not done much more than modify existing salt related geometry.    </p>

scholarly journals Megabeds in Istrian Flysch as markers of synsedimentary tectonics within the Dinaric foredeep (Croatia)

2021 ◽  
Vol 74 (2) ◽  
Author(s):  
Krešimir Petrinjak ◽  
◽  
Marko Budić ◽  
Stanislav Bergant ◽  
Tvrtko Korbar ◽  
...  
Keyword(s):  
Foreland Basin ◽  
Division I ◽  
Synsedimentary Tectonics ◽  
Sedimentary Evolution ◽  
The Matrix ◽  
Tectonically Active ◽  
Division Ii ◽  
Fault Scarps ◽  
Steep Slopes ◽  
Different Parts

Istrian Flysch was deposited during the Eocene in the Dinaric foredeep and is composed of hemipelagic marls and various gravity flow deposits. The latter are predominantly 5-40 cm thick turbidites, developed mostly as laminated and cross-rippled sandstone beds (Tb-e, Tc-e and Td-e Bouma sequences). In addition to the turbidites, there are deposits characterized by a significant thickness, occasionally more than 10 m, described as complex (bipartite) megabeds. The megabeds are composed of debrites in the lower part (Division I), and high-density turbidites in the upper part (Division II). The distinct clast composition of each megabed indicates that the lithoclasts were derived from tectonically active slopes and fault scarps along which collapses of the different parts of the Cretaceous to Palaeogene neritic carbonate succession, (that underlie the Flysch), occurred. The Division II deposits are well cemented, normally graded calcirudite/calcarenites composed mostly of orthophragminids, nummulitids, and red algae, originating from outer ramp environments. Redeposited marl, observed in the matrix of the debrites and as intraclasts in some megabeds, implies that the collapses along the synsedimentary fault scarps and steep slopes also occurred within the foredeep itself, during the rapid tectono-sedimentary evolution of the Dinaric foreland basin.

scholarly journals Chronology and tectono-sedimentary evolution of the Upper Pliocene to Quaternary deposits of the lower Guadalquivir foreland basin, SW Spain

2011 ◽  
Vol 241 (1-4) ◽  
pp. 22-39 ◽  
Author(s):  
Josep Maria Salvany ◽  
Juan Cruz Larrasoaña ◽  
Carlos Mediavilla ◽  
Ana Rebollo
Keyword(s):  
Foreland Basin ◽  
Quaternary Deposits ◽  
Sw Spain ◽  
Sedimentary Evolution

Stratigraphy, composition and provenance of argillaceous marls from the Calcare di Base Formation, Rossano Basin (northeastern Calabria)

2014 ◽  
Vol 152 (2) ◽  
pp. 193-209 ◽  
Author(s):  
FRANCESCO PERRI ◽  
ROCCO DOMINICI ◽  
SALVATORE CRITELLI
Keyword(s):  
Foreland Basin ◽  
Source Area ◽  
Mediterranean Area ◽  
Source Rocks ◽  
Sedimentary Evolution ◽  
Water Influx ◽  
Basement Rocks ◽  
Active Tectonism ◽  
Mixed Layers ◽  
Base Formation

AbstractThe Calcare di Base Formation is a part of the Rossano Basin characterizing the Foreland Basin System of northeastern Calabria. Messinian argillaceous marls from the Calcare di Base Formation have been studied to characterize the sedimentary evolution of this formation during the post-orogenic phases of the Calabria–Peloritani Arc. The mineralogical assemblage of the argillaceous marls is dominated by phyllosilicates (illite, chlorite, illite/smectite mixed layers and traces of kaolinite), carbonate minerals (calcite, aragonite and dolomite), quartz and traces of feldspars (both K-feldspars and plagioclase), gypsum and celestine. The palaeoweathering index records changes at the source, reflecting variations in the tectonic regime as shown in the A–CN–K plot, where the studied samples describe a trend typical of a source area in which active tectonism allows erosion of all zones within weathering profiles developed on source rocks. The studied samples are derived from an environment in which non-steady-state weathering conditions prevailed. This trend could record deformational events that affected the Mediterranean area during the Miocene. The Th/Sc versus Zr/Sc ratios and Al–Zr–Ti plot suggest that the samples likely record a recycling effect from their basement rocks. The geochemical proxies of these samples suggest a provenance from a mainly felsic source. The Messinian argillaceous marls record that deposition probably occurred in a semi-closed marine environment mainly subject to hypersalinity with local episodes of meteoric water influx, during a period characterized by persistent dry and warm/arid conditions alternating with relatively wet conditions.

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