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View/Edit arkL Database event - base Chattian

NB The age of the event may be set by placement within an interval (pup), placement between 2 events (pub), offset from an event or as a preset.
If data is given for more than one of these the priority is preset over offset over pub over pup.

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The age-window currently being used to search for terms for autocompletion is -22.7139 -> 77.2861 Ma.event above: base Aquitanian
event below: base Rupelian

base event of: Chattian; Late Oligocene;
top event of: Rupelian; Early Oligocene;

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Event data

term:

Id:5895 sort: 310

Event Type:

Event Display:

TSC Column:

id:2

Taxon:

dataset:

chronostratigraphy (dataset id = 1)

stage:

GSSP: set

notes_2004:

notes_2020:

Base of Chattian (Early/Late Oligocene boundary ) GSSP is local higest common occurrence of planktonic foraminifer Chilogeuembelina cubensis at Monte Cagnero, Italy (although this highest-common is diachronous among ocean basins); with published placement at 15% up in Chron C9n at the GSSP (used here; with cycle-mag scale of Palicke for GTS2020). This constrasts with the interpreted astronomical interpretation of 27.82 Ma "option 1" (Coccioni et al., 2018) or 27.42 Ma "option 2".  Previous working version had been base of Chron C10n.1n (same as GTS08).  [NOTE: Base is potentially at ~70% up in "undifferentiated Chron C10n" in the GSSP in Italy (Coccioni et al., 2008), which would project as equivalent to C10n.1n.4.]  Potentially at 2/3rds up in undifferentiated Chron C10n in candidate GSSP in Italy (Coccioni et al., 2008). <br><br>

Assigned in GTS08 as base of Chron C10n.1n = Foram Zone P21a/P21b boundary (=LAD of common Chiloguembelina occurrence => last occurrence defines top of Rupelian, rather than an FAD defining base of Chattian) following Berggren et al. (1995).  Ideally, this level would be at the base of polarity chron (C9r or C10n.1n), which provides a global marker.

compilation_notes:

refs to add:

linked refs:

Berggren et al. 1995;Coccioni et al. 2008;Coccioni et al. 2018;

Placement by pup

up within interval: id: 4193

Placement by pub

	higher event:	id: (Ma)
	lower event:	id: (Ma)

Placement by offset

offset from event: link to event: (id: )

preset_age:

preset_age_notes:

Age

27.2861 Δ=-9.9999999999767E-5

Tracecode:

; Q4 event from base+duration defined interval Equation:

Age 2020

Original age 2020 (where age has been corrected by me)

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Event References

Berggren, W. A., et al. (1995). A revised Cenozoic geochronology and chronostratigraphy. In, Berggren, W. A. , Kent, D. V. , Aubry, M. -P. , and Hardenbol, J. (ed.) Geochronology, Time Scales and Global Stratigraphic Correlations: A Unified Temporal Framework for a Historical Geology. SEPM Special Publication . 54: 129-212. gs

Coccioni, R., et al. (2008). Integrated stratigraphy of the Oligocene pelagic sequence in the Umbria-Marche basin (northeastern Apennines, Italy): a potential Global Stratotype Section and Point for the Rupelian/Chattian boundary. Geological Society of America, Bulletin. 120: 487-511. gs

Coccioni, R., et al. (2018). The Global Stratotype Section and Point (GSSP) for the base of the Chattian Stage (Paleogene System, Oligocene Series) at Monte Cagnero, Italy. Episodes. 41: 17-32. gs

Dataset References

Davydov, V. I., Wardlaw, B. R. & Gradstein, F. M. (2004). The Carboniferous Period. In, Gradstein, F. M. , Ogg, J. G. , and Smith, A. G. (ed.) A Geologic Time Scale 2004. Cambridge: Cambridge University Press 222-248. gs

Davydov, V. I., et al. (2012). Chapter 23 the Carboniferous Period. In, Gradstein, F. M. , Ogg, J. G. , Schmitz, M. D. , and Ogg, G. M. (ed.) The Geologic Time Scale 2012. Amsterdam: Elsevier Press 603-651. gs

Gale, A. S., Mutterlose, J. & Batenburg, S. (2020). Chapter 27 - The Cretaceous Period. In, Gradstein, F. M. , Ogg, J. G. , Schmitz, M. D. , and Ogg, G. M. (ed.) The Geologic Time Scale 2020. Elsevier, Boston, MA 2: 1023-1086. gs

Gale, A. S., et al. (2020). Chapter 3E - Ammonoidea. In, Gradstein, F. M. , Ogg, J. G. , Schmitz, M. D. , and Ogg, G. M. (ed.) The Geologic Time Scale 2020. Elsevier, Boston, MA 1: 61-68. gs