New constraints for the western Paleotethys paleogeography-paleotectonics derived from detrital signatures: Malaguide Carboniferous Culm Cycle (Betic Cordillera, S Spain)

Criniti, Sara; Martín-Martín, Manuel; Martín-Algarra, Agustín

doi:10.1016/j.sedgeo.2023.106534

Cited by 31 publications

(3 citation statements)

References 103 publications

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“…supercontinent Pangea [3][4][5]. The shape and size of those basins almost coincided with the modern North Caspian basin, and it connected through a narrow strait with the Paleo-Tethys Ocean.…”

Section: Introductionmentioning

confidence: 84%

“…This event in the second half of the Carboniferous period also led to the flooding of the carbonate massifs and the cessation in carbonate accumulation. (5) The subsidence of the basin basement and the growth of island carbonate massifs led to the differentiation of the topography of the bottom of the North Caspian basin and its limited isolation from the oceanic waters. As a result, in both the Kungurian time and in the north during the Roadian time, this ensured the accumulation of salts due to the active evaporation of sea water and its unidirectional influx from the open marine environment.…”

Section: Discussionmentioning

confidence: 99%

“…The formation of the depression began at the end of the Early Permian epoch, at the final stage of the Uralian orogeny, when, as a result of the collision of the East European and Siberian paleocontinents, as well as the Kazakhstania paleocontinent and smaller Central Asia continental blocks, the closure of the Uralian-Mongolian paleocean (Paleo-Tethys) occurred. On the site of the modern Caspian Sea, a marine basin was formed, detached from the gulf-shaped Paleo-Tethys Ocean forming along the eastern coast of the supercontinent Pangea [3][4][5]. The shape and size of those basins almost coincided with the modern North Caspian basin, and it connected through a narrow strait with the Paleo-Tethys Ocean.…”

Section: Introductionmentioning

confidence: 99%

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The Geotectonic Peculiarities of the North Caspian Permian Salt-Bearing Basins (Kazakhstan)

Zhemchuzhnikov,

Akhmetzhanov,

Ibrashev

et al. 2024

Geosciences

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This article examines the geotectonic and sedimentary features of the Upper Devonian–Carboniferous–Permian deposits of the North Caspian basin, represented by deposits of marine Paleozoic-isolated carbonate platforms formed during the subsidence of the basement on the passive continental margin. The top is covered by thick salt-bearing Kungurian deposits from the end of the Early Permian epoch. The formation of carbonate platforms is associated with a major tectonic restructuring of the basin at the turn of the Caledonian and Hercynian eras, when the Paleo-Tethys Ocean was formed and isolated carbonate islands began to grow in an open marine environment. The central part of the depression experienced a long and gradual subsidence that spanned the entire Paleozoic era and the beginning of the Mesozoic era. In the south and east, from the Devonian to the Permian periods, barriers were formed in the form of island carbonate massifs that separated the North Caspian basin from the Paleo-Tethys Ocean. During the formation of the salt-bearing basin, these barriers limited water exchange and ensured a one-way influx of sea water from the open ocean. As a result, at the end of the Permian period, thicker salts accumulated; however, during the collision of the continental massifs, an invasion of many kilometers of redbeds occurred. They initially stopped salt accumulation; however, gradually, in the north of the Caspian Sea during Roadian times, the salt accumulation continued. The post-Roadian time is associated with the influx of large quantities of redbed sediments, which caused gravitational instability in the underlying salt, and salt tectonics began with the formation of domal structures.

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Section: Introductionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%