arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 10

View/Edit arkL Database interval - P22 pfZ

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The age-window currently being used to search for terms for autocompletion is -26.4699 -> 76.9295 Ma.

	interval above:	N4
parent-intervals:	this interval:	P22 pfZ	sub-intervals:
	interval below:	P21 pfZ

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Interval data

intervalx:	P22 pfZhas added abv?yesid: 4407 sort:0
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	forams - planktic (dataset id = 10)
alt dataset:	(dataset id = )
TSC Column:	id:117
stage:
colour:
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:		23.5301	<---	FAD Trilobatus primordius (FCO)	6270	0.7000	C6Cr	23.5301	00023.5301
Base:		26.9295	<---	LAD Paragloborotalia opima	6273	0.5000	C9n	26.9295	00026.9295
base notes	Oligocene foram ’Paragloborotalia opima opima’ (Berggren & Miller, 1988) defines top of P21. This was called "G. opima opima" by Blow (1969), and is listed as only "P. opima" in Berggren 1995, SEPM). Wade et al. (2011) diagram projects LAD as middle of Chron C9n (used here), but unfortunately, do not specify the reference sites for this chron calibration. GTS04 had slightly younger as C9n.9 = 26.83 Ma [=P315-0.9*Q315] = same chron-age calibration as Berggren et al. (1995) -- The LAD is recorded between polarity zones C9n and C8n in Hole 516F; individuals become significantly smaller above C9n and are not typical of ’P. opima s.s.’ in Hole 558 (see also discussion in Berggren and Miller, 1988) = C9n (upper); 27.1 Ma => C9n.9.				comp notes

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