arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 1

View/Edit arkL Database interval - Carnian

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The age-window currently being used to search for terms for autocompletion is 177.3 -> 287 Ma.

	interval above:	Norian
parent-intervals:Late Triassic;	this interval:	Carnian	sub-intervals: Tuvalian; Julian;
	interval below:	Ladinian

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Interval data

intervalx:	Carnianhas added abv?id: 6379 sort:140
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	chronostratigraphy (dataset id = 1)
alt dataset:	(dataset id = )
TSC Column:	id:89
stage:
colour:	201/155/203
interval_notes:
compilation_notes:
refs to add:
linked refs:
preset_duration:
preset_duration_notes:
tracecode	; Q1base from event age; Q2top from event age; Q3a duration from base & top

	age2020	age		event	event_id	pup	in interval	age	age2020
Top:		227.3000	<---	base Norian	8874	0.0000	Guembelites jandianus TAZ	227.3	00227.3000
Base:		237.0000	<---	base Carnian	8876	0.0000		237	00237.0000
base notes	Main marker for Carnian GSSP. Fixed at 237 Ma "GSSP is one ammonite subzone just above a level dated at 237.77 +/- 0.14 Ma" (Mietto et al., 2012, Carnian GSSP report in Episodes). No subzonal divisions => scaled as "1.2 subzonal units" in relative duration because it was equivalent to lowest subzone of Trachyceras Zone, and to enable T. aon to move down for obtaining 1.3 myr duration for late Julian Reversed-zone. Ladinian ’Daxatina canadensis’ ammonite zone (uppermost Ladinian) is also the lowest subzone of the Trachyceras zone that extends into the Carnian. It is upgraded to a Zone in some schemes (e.g., Spitsbergen). This zone is equivalent to upper half of ’Frank. regoledanus’ zone of Krystyn (1983).				comp notes

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Interval References

Dataset References