Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia. / Rodríguez-Tovar, Francisco J.; Mayoral, Eduardo; Santos, Ana; Dorador Rodriguez, Javier; Wetzel, Andreas.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 521, 01.05.2019, p. 1-9.

Research output: Contribution to journalArticle

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Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia. / Rodríguez-Tovar, Francisco J.; Mayoral, Eduardo; Santos, Ana; Dorador Rodriguez, Javier; Wetzel, Andreas.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 521, 01.05.2019, p. 1-9.

Research output: Contribution to journalArticle

Harvard

Rodríguez-Tovar, FJ, Mayoral, E, Santos, A, Dorador Rodriguez, J & Wetzel, A 2019, 'Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia', Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 521, pp. 1-9. https://doi.org/10.1016/j.palaeo.2019.02.012

APA

Rodríguez-Tovar, F. J., Mayoral, E., Santos, A., Dorador Rodriguez, J., & Wetzel, A. (2019). Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia. Palaeogeography, Palaeoclimatology, Palaeoecology, 521, 1-9. https://doi.org/10.1016/j.palaeo.2019.02.012

Vancouver

Rodríguez-Tovar FJ, Mayoral E, Santos A, Dorador Rodriguez J, Wetzel A. Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia. Palaeogeography, Palaeoclimatology, Palaeoecology. 2019 May 1;521:1-9. https://doi.org/10.1016/j.palaeo.2019.02.012

Author

Rodríguez-Tovar, Francisco J. ; Mayoral, Eduardo ; Santos, Ana ; Dorador Rodriguez, Javier ; Wetzel, Andreas. / Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia. In: Palaeogeography, Palaeoclimatology, Palaeoecology. 2019 ; Vol. 521. pp. 1-9.

BibTeX

@article{0fd7160a23f04060b8da08c9316c3b65,
title = "Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia",
abstract = "The passive and active fill of burrows potentially stores information about sedimentary processes that are otherwise not preserved in the rock record. In recent years, abandoned passively-filled vertical burrows were introduced as “tubular tidalites” when their infilling displays rhythmic lamination reflecting a tidal signature. In the shallow-marine Miocene sandstones exposed at Oura (southern Portugal), 36 tubular tidalites occur in a 1.5 m-thick interval. Their high abundance is likely a consequence of both an environment favourable for the production of open burrows in a tidal setting, and post-depositional conditions facilitating the preservation of the tubular tidalites. Besides vertical tubes, 13 horizontal burrows preserve a tidal signature indicating draughtfill processes. All specimens belong to Thalassinoides and, for the first time, to Gyrolithes. The rhythmic infill of two well-preserved specimens shows two significant features: (1) The thickness pattern allows for differentiation into groups having 7 couplets (consisting of a dark and a light lamina) or multiples thereof, and (2) the thickness patterns of both, consecutive couplets as well as dark and light laminae match sine curves. Both patterns indicate a diurnal tidal cyclicity. The tidalites record up to four spring-tide and three neap-tide cycles. In addition to the neap-spring cycles, a long-period lunar fortnightly tide regime can be envisaged. The tubular tidalites imply diurnal tides during the Miocene in contrast to the Recent semidiurnal tides affecting southern Portugal.",
author = "Rodr{\'i}guez-Tovar, {Francisco J.} and Eduardo Mayoral and Ana Santos and {Dorador Rodriguez}, Javier and Andreas Wetzel",
year = "2019",
month = may,
day = "1",
doi = "10.1016/j.palaeo.2019.02.012",
language = "English",
volume = "521",
pages = "1--9",
journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",
issn = "0031-0182",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Crowded tubular tidalites in Miocene shelf sandstones of southern Iberia

AU - Rodríguez-Tovar, Francisco J.

AU - Mayoral, Eduardo

AU - Santos, Ana

AU - Dorador Rodriguez, Javier

AU - Wetzel, Andreas

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The passive and active fill of burrows potentially stores information about sedimentary processes that are otherwise not preserved in the rock record. In recent years, abandoned passively-filled vertical burrows were introduced as “tubular tidalites” when their infilling displays rhythmic lamination reflecting a tidal signature. In the shallow-marine Miocene sandstones exposed at Oura (southern Portugal), 36 tubular tidalites occur in a 1.5 m-thick interval. Their high abundance is likely a consequence of both an environment favourable for the production of open burrows in a tidal setting, and post-depositional conditions facilitating the preservation of the tubular tidalites. Besides vertical tubes, 13 horizontal burrows preserve a tidal signature indicating draughtfill processes. All specimens belong to Thalassinoides and, for the first time, to Gyrolithes. The rhythmic infill of two well-preserved specimens shows two significant features: (1) The thickness pattern allows for differentiation into groups having 7 couplets (consisting of a dark and a light lamina) or multiples thereof, and (2) the thickness patterns of both, consecutive couplets as well as dark and light laminae match sine curves. Both patterns indicate a diurnal tidal cyclicity. The tidalites record up to four spring-tide and three neap-tide cycles. In addition to the neap-spring cycles, a long-period lunar fortnightly tide regime can be envisaged. The tubular tidalites imply diurnal tides during the Miocene in contrast to the Recent semidiurnal tides affecting southern Portugal.

AB - The passive and active fill of burrows potentially stores information about sedimentary processes that are otherwise not preserved in the rock record. In recent years, abandoned passively-filled vertical burrows were introduced as “tubular tidalites” when their infilling displays rhythmic lamination reflecting a tidal signature. In the shallow-marine Miocene sandstones exposed at Oura (southern Portugal), 36 tubular tidalites occur in a 1.5 m-thick interval. Their high abundance is likely a consequence of both an environment favourable for the production of open burrows in a tidal setting, and post-depositional conditions facilitating the preservation of the tubular tidalites. Besides vertical tubes, 13 horizontal burrows preserve a tidal signature indicating draughtfill processes. All specimens belong to Thalassinoides and, for the first time, to Gyrolithes. The rhythmic infill of two well-preserved specimens shows two significant features: (1) The thickness pattern allows for differentiation into groups having 7 couplets (consisting of a dark and a light lamina) or multiples thereof, and (2) the thickness patterns of both, consecutive couplets as well as dark and light laminae match sine curves. Both patterns indicate a diurnal tidal cyclicity. The tidalites record up to four spring-tide and three neap-tide cycles. In addition to the neap-spring cycles, a long-period lunar fortnightly tide regime can be envisaged. The tubular tidalites imply diurnal tides during the Miocene in contrast to the Recent semidiurnal tides affecting southern Portugal.

U2 - 10.1016/j.palaeo.2019.02.012

DO - 10.1016/j.palaeo.2019.02.012

M3 - Article

VL - 521

SP - 1

EP - 9

JO - Palaeogeography, Palaeoclimatology, Palaeoecology

JF - Palaeogeography, Palaeoclimatology, Palaeoecology

SN - 0031-0182

ER -