Comment on ?Porcupine plate hypothesis? by M. F. Gerstell and J. M. Stock (Marine Geophysical Researches 16, pp. 315?323, 1994)

Srivastava, S. P.; Roest, W. R.

doi:10.1007/bf00310070

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…In addition, those authors observed that the deformation occurred along the Porcupine and northern Biscay margins between~56 and~33 Ma cannot be explained by a single pole of rotation (Srivastava & Tapscott, 1986). Subsequently, Srivastava and Roest (1996) refined this concept and showed that this poor fit affected all the pre-Chron 13 (33.1 Ma, Rupelian) magnetic anomalies south of the CGFZ. Moreover, those authors emphasized that a single pole of rotation overcomes the mismatch between all magnetic lineations between Chrons 34 and 18.…”

Section: Porcupine Platementioning

confidence: 99%

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A New Southern North Atlantic Isochron Map: Insights Into the Drift of the Iberian Plate Since the Late Cretaceous

et al. 2017

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This paper presents a new southern North Atlantic plate model from Late Cretaceous to present, with the aim of constraining the kinematics of the Iberian plate during the last 83.5 Myr. This model is presented along with a detailed isochron map generated through the analysis of 3 aeromagnetic tracks and ~400 ship tracks from the National Centers for Environmental Information database. We present a new technique to obtain well‐constrained estimates of the Iberia‐North America plate motions from magnetic anomalies, overcoming the scarcity of large‐offset fracture zones and transform faults. We build an integrated kinematic model for NW Africa, Morocco, Iberia, Europe, and North America, which shows that the deformation is partitioned between Pyrenees and Betic‐Rif orogenic domain during the Late Cretaceous‐Oligocene time interval. In the Eastern Betics domain, the calculated amount of NW Africa‐Iberia convergence is ~80 km between 83.5 and 34 Ma, followed by ~150 km since the Oligocene. The motion of Iberia relative to Europe in the Central Pyrenees is characterized by overall NE directed transpressional motion during the Campanian and the Paleocene, followed by NW directed transpressional movement until the Lutetian and overall NNW directed convergence from Bartonian to Chattian. This motion occurs along the axis of the Bay of Biscay from the Santonian–Campanian boundary to the middle Priabonian, subsequently jumping to King's Trough at Anomaly 17 (36.62 Ma).

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Section: Porcupine Platementioning

confidence: 99%

“…Moreover, those authors emphasized that a single pole of rotation overcomes the mismatch between all magnetic lineations between Chrons 34 and 18. We used the Porcupine-Europe rotation of Srivastava and Roest (1996) from Anomaly 34 (83.5 Ma) to Anomaly 18 (38.43 Ma).…”

Section: Porcupine Platementioning

confidence: 99%

A New Southern North Atlantic Isochron Map: Insights Into the Drift of the Iberian Plate Since the Late Cretaceous

et al. 2017

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“…The Pyrenees formed during collision of the Iberian and European plates between the Late Cretaceous and Miocene. Plate kinematic models, based on Atlantic magnetic anomalies, describe the relative motions of the Iberian, African and Eurasian plates others, 1990a, 1990b;Roest and Srivastava, 1991;Roest and others, 1992;Srivastava and Roest, 1996;Torsvik and others, 2001;Rosenbaum and others, 2002). Reconstructions of plate motions show a mainly anticlockwise rotation of Iberia with respect to Europe (van der Voo, 1969;Galdeano and others, 1989).…”

Section: Plate Tectonic Motionsmentioning

confidence: 99%

Sediment routing system evolution within a diachronously uplifting orogen: Insights from detrital zircon thermochronological analyses from the South-Central Pyrenees

Whitchurch

Carter

Sinclair³

et al. 2011

American Journal of Science

175

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The Pyrenees represents an orogen that developed diachronously, from east to west, between the Late Cretaceous and Miocene. Here, we use detrital zircon fission-track thermochronological analyses and U-Pb geochronology, interpreted within the context of the thermal and tectono-sedimentary development of the orogen, to construct a 3-stage model for south-central Pyrenean sediment routing system evolution as follows: (1) Late Cretaceous to Paleocene: Oblique convergence and topographic growth initiates in the eastern Pyrenees. After erosion and removal of the "cover layer", south-central Pyrenean basins are supplied with zircons cooled during the Late Cretaceous (ϳ78 Ma), with a fission-track lag time of ca. 15 Myr, that record early Pyrenean exhumation. The zircons are sourced from the eastern, not central, Pyrenees. Orogen-parallel sediment routing systems dominate; (2) Early to Middle Eocene: After a period of quiescence, plate convergence rates increase. Uplift of the central Pyrenees supplies the south-central Pyrenean basins with zircons sourced from the central Pyrenean cover layer. Out-of-sequence thrusting recycles the early foredeep deposits and their associated thermochronological signals. The sediment routing systems begin to transition from orogen-parallel to orogen-transverse states; (3) Late Eocene to Miocene: Uplift and exhumation of the western Pyrenees begins. Zircons exhumed and cooled during the Oligocene (ϳ30 Ma) in response to duplex stacking in the central Axial Zone, reach the south-central Pyrenean wedge-top and foreland basins with a lag time of ca. 3 Myr. Orogen-transverse sediment routing systems become fully established. Our results extend the exhumational history of the Pyrenees beyond that shown from bedrock studies and reveal that significant topography existed in the Pyrenees in the Paleocene. Furthermore, our data demonstrate the successive change from orogen-parallel to orogen-transverse sediment dispersal along strike, coeval with diachronous mountain growth. This study has implications for understanding the evolution of synorogenic sediment routing systems, migrating depocenters and the redistribution of mass by surface processes that may drive any coupling with tectonics during oblique orogenic development.

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The rotations opening the Central and Northern Atlantic Ocean: compilation, drift lines, and flow lines

Greiner¹,

Neugebauer²

2013

Int J Earth Sci (Geol Rundsch)

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Comment on ?Porcupine plate hypothesis? by M. F. Gerstell and J. M. Stock (Marine Geophysical Researches 16, pp. 315?323, 1994)

Cited by 10 publications

References 23 publications

A New Southern North Atlantic Isochron Map: Insights Into the Drift of the Iberian Plate Since the Late Cretaceous

A New Southern North Atlantic Isochron Map: Insights Into the Drift of the Iberian Plate Since the Late Cretaceous

Sediment routing system evolution within a diachronously uplifting orogen: Insights from detrital zircon thermochronological analyses from the South-Central Pyrenees

The rotations opening the Central and Northern Atlantic Ocean: compilation, drift lines, and flow lines

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