Le diapirisme des terrains triasiques au Secondaire et au Tertiaire dans le Subbetique du NE de la province de Grenade (Espagne meridionale)

1966 ◽  
Vol S7-VIII (4) ◽  
pp. 527-536
Author(s):  
Alain Foucault
Keyword(s):  
Upper Cretaceous ◽  
Western Mediterranean ◽  
Important Influence ◽  
Tectonic Activity ◽  
Tectonic Development

Abstract The study of certain outcrops in the Subbetic zone indicates diapirism of Triassic strata beginning as early as the Turonian (upper Cretaceous). These movements of the evaporitic strata of the Triassic have had an important influence on the tectonic development of the western Mediterranean. Although deformation of the diapirs by tangential tectonic activity has made them difficult to recognize, they occur on both sides of the western Mediterranean and may be much more widespread than currently believed.

scholarly journals FEATURES OF TECTONIC DEVELOPMENT OF STRUCTURES IN THE MIDDLE OB BY CORRELATION OF THICKNESS ANALYSIS

2018 ◽  
pp. 77-83
Author(s):  
F. Z. Khafizov
Keyword(s):  
Correlation Analysis ◽  
Middle Jurassic ◽  
Large Scale ◽  
Upper Cretaceous ◽  
Tectonic Activity ◽  
Active Tectonic ◽  
History Of ◽  
Tectonic Development

The article is devoted to the main patterns of tectonic development in the Middle Ob for the period from the tops of the middle Jurassic to the Eocene. It is shown that during this period of time in the tectonic development of the territory there were periods of quiet sedimentation and very active tectonic activity. In the history of the tectonic development of the Middle Ob four major stages are distinguished: two is quiet (the Jurassic and the Upper Cretaceous) and two are very active with large-scale multidirectional movements that led to a significant increase in the amplitudes of the structures (from the Cretaceous to the roof of the Cenomanian century).The article describes the methodology of the correlation analysis used in the study of the history of tectonic development in the territory.

Composition and provenance of the Upper Cretaceous to Eocene sandstones in Central Palawan, Philippines: Constraints on the tectonic development of Palawan

Island Arc ◽  
2000 ◽  
Vol 9 (4) ◽  
pp. 611-626 ◽  
Author(s):  
Shigeyuki Suzuki ◽  
Shizuo Takemura ◽  
Graciano P. Yumul ◽  
Sevillo D. David ◽  
Daniel K. Asiedu
Keyword(s):  
Upper Cretaceous ◽  
Tectonic Development

Tectonique synsedimentaire d'age cretace superieur en Tunisie nord orientale; blocs bascules et reorganisation des aires de subsidence

2000 ◽  
Vol 171 (4) ◽  
pp. 431-440 ◽  
Author(s):  
Lahcen Boutib ◽  
Fetheddine Melki ◽  
Fouad Zargouni
Keyword(s):  
Structural Analysis ◽  
Upper Cretaceous ◽  
Tectonic Activity ◽  
Normal Faults ◽  
Half Graben ◽  
Combined Movements ◽  
Basin Floor ◽  
Tunisian Atlas ◽  
Facies Variation ◽  
Regional Tectonics

Abstract Structural analysis of late Cretaceous sequences from the northeastern Tunisian Atlas, led to conclude on an active basin floor instability. Regional tectonics resulted in tilted blocks with a subsidence reorganization, since the Campanian time. These structural movements are controlled both by N140 and N100-120 trending faults. The Turonian-Coniacian and Santonian sequences display lateral thickness and facies variation, due to tectonic activity at that time. During Campanian-Maastrichtian, a reorganization of the main subsidence areas occurred, the early Senonian basins, have been sealed and closed and new half graben basins developed on area which constituted previously palaeohigh structures. These syndepositional deformations are characterized by frequent slumps, synsedimentary tilting materials, sealed normal faults and progressive low angle unconformities. These tilted blocks combined to a subsidence axis migration were induced by a NE-SW trending extensional regime. This extension which affects the Tunisian margin during the Upper Cretaceous, is related to the Tethyan and Mesogean rifting phase which resulted from the combined movements of the African and European plates.

The ichnogenus Tubotomaculum: an enigmatic pellet-filled structure from Upper Cretaceous to Miocene deep-marine deposits of southern Spain

2014 ◽  
Vol 88 (6) ◽  
pp. 1189-1198 ◽  
Author(s):  
Jose Carlos García-Ramos ◽  
María Gabriela Mángano ◽  
Laura Piñuela ◽  
Luis A. Buatois ◽  
Francisco J. Rodríguez-Tovar
Keyword(s):  
Upper Cretaceous ◽  
Western Mediterranean ◽  
Bottom Current ◽  
Nodule Formation ◽  
Organic Detritus ◽  
Marine Deposits ◽  
Hydrocarbon Seeps ◽  
Reducing Conditions ◽  
Mud Volcanism ◽  
Fluid Venting

The trace-fossil name Tubotomaculum has been extensively used to refer to spindle-shaped pellet-filled tubes present in Upper Cretaceous to Miocene deep-marine deposits of the western Mediterranean region. However, it has never been formally diagnosed, and accordingly it was regarded as a nomen nudum. In this paper, we formally introduce the ichnogenus Tubotomaculum, including the new ichnospecies Tubotomaculum mediterranensis. Bioglyphs, represented by scratch traces that may be present on the basal and lateral surfaces of the structure, suggesting production by crustaceans. The functional meaning of these structures challenges the simple model of a mining strategy. Instead, the storing of pellets to use them as a bacteria-enriched resource during times when organic detritus was scarce is suggested. The association with chemoautothrophic bacteria in modern analogs of Tubotomaculum provides a crucial piece of evidence to support the cache model. Integration of information from modern environments and the fossil record points to a connection between Tubotomaculum, mud volcanism, fluid venting, and hydrocarbon seeps. The presence of bioglyphs suggests firmgrounds that may have resulted from bottom current scouring of the sea sediment, leading to erosional exhumation of previously buried compacted sediment, which was therefore available for colonization by the infauna. However, an alternative scenario involves enriched fluids related to mud-volcanism resulting in reducing conditions that favored carbonate precipitation and nodule formation just a few centimeters below the sediment-water interface.

The Tectonic Development of the Western Weald in Lower Cretaceous Times

1933 ◽  
Vol 70 (6) ◽  
pp. 254-268 ◽  
Author(s):  
J. F. Kirkaldy
Keyword(s):  
Lower Cretaceous ◽  
Tectonic Activity ◽  
Structural Units ◽  
Tectonic History ◽  
History Of ◽  
Tectonic Development

Modern detailed stratigraphical studies have demonstrated very clearly the long and involved tectonic history of the majority of the main structural units of England. It has been proved that, in certain areas, the thickness and the lithology of the sediments were partly determined by repeated pene-contemporaneous folding along definite axes, and thus it has been possible to trace the gradual growth of some of the main fold lines of the country. The Weald is typical of these areas, whose structure, at first sight simple enough, reveals on closer study much complexity of the minor folding and faulting and also gives evidence of long continued movement along certain lines; movement contemporaneous with the deposition of beds which were involved in the final crescendo of tectonic activity.

Composition and provenance of the Upper Cretaceous to Eocene sandstones in Central Palawan, Philippines: Constraints on the tectonic development of Palawan

Island Arc ◽  
2008 ◽  
Vol 9 (4) ◽  
pp. 611-626 ◽  
Author(s):  
Shigeyuki Suzuki ◽  
Shizuo Takemura ◽  
Graciano P. Yumul ◽  
Sevillo D. David ◽  
Daniel K. Asiedu
Keyword(s):  
Upper Cretaceous ◽  
Tectonic Development

scholarly journals Tectonosedimentary framework of Upper Cretaceous –Neogene series in the Gulf of Tunis inferred from subsurface data: implications for petroleum exploration

2017 ◽  
Vol 68 (2) ◽  
pp. 97-108 ◽  
Author(s):  
Wissem Dhraief ◽  
Ferid Dhahri ◽  
Imen Chalwati ◽  
Noureddine Boukadi
Keyword(s):  
Seismic Data ◽  
Upper Cretaceous ◽  
Source Rocks ◽  
Petroleum Exploration ◽  
Tectonic Activity ◽  
Petroleum Systems ◽  
Subsurface Structures ◽  
Gulf Of Tunis ◽  
Northeastern Tunisia ◽  
Well Data

Abstract The objective and the main contribution of this issue are dedicated to using subsurface data to delineate a basin beneath the Gulf of Tunis and its neighbouring areas, and to investigate the potential of this area in terms of hydrocarbon resources. Available well data provided information about the subsurface geology beneath the Gulf of Tunis. 2D seismic data allowed delineation of the basin shape, strata geometries, and some potential promising subsurface structures in terms of hydrocarbon accumulation. Together with lithostratigraphic data obtained from drilled wells, seismic data permitted the construction of isochron and isobath maps of Upper Cretaceous-Neogene strata. Structural and lithostratigraphic interpretations indicate that the area is tectonically complex, and they highlight the tectonic control of strata deposition during the Cretaceous and Neogene. Tectonic activity related to the geodynamic evolution of the northern African margin appears to have been responsible for several thickness and facies variations, and to have played a significant role in the establishment and evolution of petroleum systems in northeastern Tunisia. As for petroleum systems in the basin, the Cretaceous series of the Bahloul, Mouelha and Fahdene formations are acknowledged to be the main source rocks. In addition, potential reservoirs (Fractured Abiod and Bou Dabbous carbonated formations) sealed by shaly and marly formations (Haria and Souar formations respectively) show favourable geometries of trap structures (anticlines, tilted blocks, unconformities, etc.) which make this area adequate for hydrocarbon accumulations.

scholarly journals Tectonic evolution of the Sicilian Maghrebian Chain inferred from stratigraphic and petrographic evidences of Lower Cretaceous and Oligocene flysch

2014 ◽  
Vol 65 (4) ◽  
pp. 293-305 ◽  
Author(s):  
Diego Puglisi
Keyword(s):  
Lower Cretaceous ◽  
Western Mediterranean ◽  
Geological Evidence ◽  
The Balkans ◽  
Early Oligocene ◽  
Gulf Of Lion ◽  
Tectonic Development ◽  
Thinned Continental Crust ◽  
Almost All ◽  
Back Arc

Abstract The occurrence of a Lower Cretaceous flysch group, cropping out from the Gibraltar Arc to the Balkans with a very similar structural setting and sedimentary provenance always linked to the dismantling of internal areas, suggests the existence of only one sedimentary basin (Alpine Tethys s.s.), subdivided into many other minor oceanic areas. The Maghrebian Basin, mainly developed on thinned continental crust, was probably located in the westernmost sector of the Alpine Tethys. Cretaceous re-organization of the plates triggered one (or more) tectonic phases, well recorded in almost all the sectors of the Alpine Tethys. However, the Maghrebian Basin seems to have been deformed by Late- or post-Cretaceous tectonics, connected with a “meso-Alpine” phase (pre-Oligocene), already hypothesized since the beginning of the nineties. Field geological evidence and recent biostratigraphic data also support this important meso- Alpine tectonic phase in the Sicilian segment of the Maghrebian Chain, indicated by the deformations of a Lower Cretaceous flysch sealed by Lower Oligocene turbidite deposits. This tectonic development is emphasized here because it was probably connected with the onset of rifting in the southern paleomargin of the European plate, the detaching of the so-called AlKaPeCa block (Auct.; i.e. Alboran + Kabylian + Calabria and Peloritani terranes) and its fragmentation into several microplates. The subsequent early Oligocene drifting of these microplates led to the progressive closure of the Maghrebian Basin and the opening of new back-arc oceanic basins, strongly controlled by extensional processes, in the western Mediterranean (i.e. Gulf of Lion, Valencia Trough, Provençal Basin and Alboran Sea).

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