Cretaceous Tectonic Evolution of arabia’s Eastern Plate Margin: A Tale of Two Oceans

Glennie, K. W.

doi:10.2110/pec.00.69.0009

Cited by 83 publications

(86 citation statements)

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“…The Hercynian Orogeny in the late Paleozoic had caused the formation of the N-S trending horsts and grabens (Stöcklin 1968;Murris 1980). From the late Carboniferous to the early Permian, the northeastern margin of intra-continental rifting and seafloor spreading along the Zagros belt formed the new Tethys Ocean and led to the separation of the Iranian and Arabian plates (Alavi 1994;Glennie 2000;Sherkati and Letouzeh 2004;Sepehr and Cosgrove 2004). After entering the middle of the Cretaceous, with the Arabian plate drifting to the north, the plate moved from the passive continental margin into the active continental margin development stage (Alavi 2004) and experienced two periods of tectonic activity.…”

Section: Trap Evolutionmentioning

confidence: 99%

“…This tectonic change turned the area into an active and compressional tectonic setting from the Cenomanian of the Cretaceous, which caused a readjustment of the fault system to the N-S strike during the early Hercynian and brought an increment in salt movement, such as salt plugs, swells, ridges, and relevant domes of the N-S Arabian trend. Regionally, these structures are abundant in the Persian Gulf, Saudi Arabia, Kuwait, southeast Iraq, and southwest Iran (Murris 1980;Koop and Kholief 1982;Glennie 2000;Sherkati and Letouzeh 2004). In the Azadegan field, the Sarvak occurs as a result of carbonate shelf deposition in the mid-Cretaceous (Murris 1980;Alsharhan and Nairn 1997;Bordenave and Hegre 2005).…”

Section: Trap Evolutionmentioning

confidence: 99%

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Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Chen

Cui

et al. 2016

Pet. Sci.

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Section: Trap Evolutionmentioning

confidence: 99%

Section: Trap Evolutionmentioning

confidence: 99%

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Chen

Cui

et al. 2016

Pet. Sci.

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“…In some of these models the SSZ is a continental fragment rifted from Arabia and was accreted to Eurasia during Cretaceous time (e.g. Glennie, 2000;Golonka, 2004;Agard et al 2005Agard et al , 2006. However, Robertson (2007) observed that the rocks of the SSZ cannot be correlated with Arabian rocks.…”

Section: D Sanandaj-sirjan Zonementioning

confidence: 99%

“…Berberian & King, 1981;Desmons & Beccaluva, 1983;Glennie, 2000, Stampfli et al 2001). According to some geologists, Neo-Tethyan oceanic lithosphere was consumed in a NE-dipping subduction zone beneath the SSZ margin during Early Jurassic time (Dercourt et al 1986).…”

Section: C1 Suggested Tectonic Models For the Obmentioning

confidence: 99%

Geodynamic evolution of Upper Cretaceous Zagros ophiolites: formation of oceanic lithosphere above a nascent subduction zone

2011

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-The Zagros fold-and-thrust belt of SW Iran is a young continental convergence zone, extending NW-SE from eastern Turkey through northern Iraq and the length of Iran to the Strait of Hormuz and into northern Oman. This belt reflects the shortening and off-scraping of thick sediments from the northern margin of the Arabian platform, essentially behaving as the accretionary prism for the Iranian convergent margin. Distribution of Upper Cretaceous ophiolites in the Zagros orogenic belt defines the northern limit of the evolving suture between Arabia and Eurasia and comprises two parallel belts: (1) Outer Zagros Ophiolitic Belt (OB) and (2) Inner Zagros Ophiolitic Belt (IB). These belts contain complete (if disrupted) ophiolites with well-preserved mantle and crustal sequences. Mantle sequences include tectonized harzburgite and rare ultramafic-mafic cumulates as well as isotropic gabbro lenses and isolated dykes within the harzburgite. Crustal sequences include rare gabbros (mostly in IB ophiolites), sheeted dyke complexes, pillowed lavas and felsic rocks. All Zagros ophiolites are overlain by Upper Cretaceous pelagic limestone. Limited radiometric dating indicates that the OB and IB formed at the same time during Late Cretaceous time. IB and OB components show strong suprasubduction zone affinities, from mantle harzburgite to lavas. This is shown by low whole-rock Al 2 O 3 and CaO contents and spinel and orthopyroxene compositions of mantle peridotites as well as by the abundance of felsic rocks and the trace element characteristics of the lavas. Similarly ages, suprasubduction zone affinities and fore-arc setting suggest that the IB and OB once defined a single tract of fore-arc lithosphere that was disrupted by exhumation of subducted Sanandaj-Sirjan Zone metamorphic rocks. Our data for the OB and IB along with better-studied ophiolites in Cyprus, Turkey and Oman compel the conclusion that a broad and continuous tract of fore-arc lithosphere was created during Late Cretaceous time as the magmatic expression of a newly formed subduction zone developed along the SW margin of Eurasia.

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“…Glennie (2000) proposed that the Neo-Tethys began to close with Early Cretaceous (Aptian?) subduction of oceanic crust beneath Central Iran.…”

Section: A Timing Of Deformationmentioning

confidence: 99%

Significance of angular unconformities between Cretaceous and Tertiary strata in the northwestern segment of the Zagros fold–thrust belt, Kurdistan Region, NE Iraq

et al. 2011

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-In this study, two angular unconformities are found and analysed for the first time in the Mesozoic-Cenozoic succession in the northwestern segment of the Zagros fold-thrust belt (ZFTB) in the Kurdistan Region. The first unconformity exists between Lower Cretaceous and PaleoceneEocene rocks and the second between the Campanian Shiranish Formation and the Maastrichtian Tanjero Formation. Each of these unconformities is found in two different localities in the Zagros Imbricate Zone (i.e. the highly deformed zone immediately SW of the Zagros Suture) of the ZFTB of the Kurdistan Region near the border with Iran. The study uses recent geological mapping, structural and stratigraphic analyses in addition to using previous biozonation of the stratigraphic units that bound the two unconformities. The first unconformity was initiated with obduction of the ophiolite and Lower Cretaceous radiolarite onto the passive margin of the Arabian plate. This unconformity formed during an early phase of the Zagros orogeny, which is associated with the developing of a foreland basin, and resulted in the folding of the radiolarites and their uplift to form high-relief land. The erosion of this high-relief land resulted in the formation of the Paleocene-Eocene Red Bed Series and their deposition on the folded radiolarite. The timing of the deformation that caused this unconformity is hard to determine; however, its stratigraphic position may suggest that it possibly is related to post-Cenomanian movements. The second unconformity is between the tilted Campanian Shiranish Formation (hemipelagite) and Tanjero Formation (500 m of conglomerate in the more proximal area). These unconformities indicate that deformation and uplift of the sedimentary units was variable during ophiolite obduction in this part of the ZFTB. We argue that deformation, ophiolite obduction and collision are likely to have varied in space and time along the c. 2000 km long ZFTB.

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Cretaceous Tectonic Evolution of arabia’s Eastern Plate Margin: A Tale of Two Oceans

Cited by 83 publications

References 0 publications

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Genetic mechanism and development of the unsteady Sarvak play of the Azadegan oil field, southwest of Iran

Geodynamic evolution of Upper Cretaceous Zagros ophiolites: formation of oceanic lithosphere above a nascent subduction zone

Significance of angular unconformities between Cretaceous and Tertiary strata in the northwestern segment of the Zagros fold–thrust belt, Kurdistan Region, NE Iraq

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