Periodic components in the diversity of calcareous plankton and geological events over the past 230 Myr

Prokoph, Andreas; Rampino, Michael R.; Bilali, Hafida El

doi:10.1016/j.palaeo.2004.02.004

Cited by 22 publications

(7 citation statements)

References 45 publications

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“…As a side note, there is also evidence for a ~ 60 Ma periodicity in the literature373839404142. For example, Meyers & Peter38 find a 56 ± 3 Ma period in the sedimentation record, which can be explained as an orogenic oscillator or as oscillatory dynamics in the mantle convection.…”

Section: Discussionmentioning

confidence: 98%

Is the Solar System's Galactic Motion Imprinted in the Phanerozoic Climate?

Shaviv

Prokoph²,

Veizer

2014

Sci Rep

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A new δ18O Phanerozoic database, based on 24,000 low-Mg calcitic fossil shells, yields a prominent 32 Ma oscillation with a secondary 175 Ma frequency modulation. The periodicities and phases of these oscillations are consistent with parameters postulated for the vertical motion of the solar system across the galactic plane, modulated by the radial epicyclic motion. We propose therefore that the galactic motion left an imprint on the terrestrial climate record. Based on its vertical motion, the effective average galactic density encountered by the solar system is . This suggests the presence of a disk dark matter component.

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Section: Discussionmentioning

confidence: 98%

Is the Solar System's Galactic Motion Imprinted in the Phanerozoic Climate?

Shaviv

Prokoph²,

Veizer

2014

Sci Rep

Self Cite

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“…Statistical significance and possible origin of multi-Myr cycles in geological records (e.g., biomass extinctions, climate change, Earth's interior dynamics, eustatic changes, etc) have been considered by several researchers since the 1980's (ref. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], and many others).…”

Section: Very Long-term Eustatic Cycles Vs Other Geologic Procesmentioning

confidence: 99%

Long-term cyclicities in Phanerozoic sea-level sedimentary record and their potential drivers

Boulila

Laskar

Haq

et al. 2018

Global and Planetary Change

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“…This age range is late Turonian-Campania. This species of late Cretaceous sediment have been reported from Southern Africa [41] and Tunisia [42].…”

Section: Microfossils Biozonationmentioning

confidence: 58%

Determining the Gender of Nano-Fossils in the Lower Part of the Abtalkh Formation (150 M Primary)

Ghomi¹,

Moradzadeh²

2016

OJG

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A structural zone of Dagh Kopet as sediment (Trough) has created in the late Triassic. There are two different views of Dagh Kopet zone: A) Eurasian theory; B) Gondwana theory. The main fault zones are divided into two groups of foundation faults and overthrust. Abtalkh formation is one of the most important Late Cretaceous rock units in the Kopet Dagh sediment Basin and the geographic location of the study area is "03'43˚37 north latitude and "47'35˚55 the east. The calcareous nan-noplanktons are the first links in the food chain and are the main producers in the seas and oceans. The calcareous Nannoplankton is found in fine sediments such as shale and marl and for study and examination; the presence of trace amounts of sample is enough. The calcareous Lannoplankton is used to identify and introduce Nannofossils of Abtalkh in the bottom of the cut, to determine biozones available at the cutting zone and comparing it with the world standard, to determine their age. In the study section, Nannofossil is in glauconitic sandstone, conglomerate, siltstone, marl, shale, limestone, clay, marl and clay marl and Chuck. Their small size makes that a very small amount of samples are sufficient for the study. The most important method for sample preparation in this study is a smear slide method. In laboratory studies and identification of Nannofossil and counting them, the optical microscope and the object lens 50* and 100* are used. To take pictures of samples, 100× objective lens and digital camera were used. In the course of this study, for the lower part of Abtalkh, Aytamir cutting was studied and 12 genera were identified. The calcareous Nannofossils were recognized and have relatively good diversity and abundance. In general, the greater thickness of the study samples had an average preservation. In some cases, the impact of dissolution was so great that the wall or part of the main sections of the species was corroded.

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Periodic components in the diversity of calcareous plankton and geological events over the past 230 Myr

Cited by 22 publications

References 45 publications

Is the Solar System's Galactic Motion Imprinted in the Phanerozoic Climate?

Is the Solar System's Galactic Motion Imprinted in the Phanerozoic Climate?

Long-term cyclicities in Phanerozoic sea-level sedimentary record and their potential drivers

Determining the Gender of Nano-Fossils in the Lower Part of the Abtalkh Formation (150 M Primary)

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