arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 10

View/Edit arkL Database interval - MPL6b

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The age-window currently being used to search for terms for autocompletion is -48.98 -> 51.93 Ma.

	interval above:	MPL8a
parent-intervals:	this interval:	MPL6b	sub-intervals:
	interval below:	MPL6a

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Interval data

intervalx:	MPL6bhas added abv?id: 4368 sort:22
alternative_term:	block label:b
formal term:
interval_type:
parent_interval:
dataset:	forams - planktic (dataset id = 10)
alt dataset:	(dataset id = )
TSC Column:	id:530
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:		1.0200	<---	FAD Globorotalia excelsa [Medit.]	6095	0.0000		1.02	00001.0200
Base:		1.9300	<---	FAD Globorotalia truncatulinoides [Atl.]	6103	0.0000		1.93	00001.9300
base notes	DASH -- Highly diachronous marker for the base of N22 (Dowsett, 1988); Wade (GTS2020): "The astronomically calibrated equatorial Atlantic age is favoured here". Formerly Truncorotalia (Globorotalia) truncatulinoides. The astronomically calibrated subtropical South Atlantic age of 1.93 is from Wade et al’11 astrochronology. As summarized in Lourens et al (GTS2004 appendix): Age of 2.00 Ma calibrated in Eastern Mediterranean. FAD occurs slightly later (1.93 Ma) in Atlantic Sites 925 & 926. Berggren et al. (1995) assign as mid-Olduvai Subchron; ~1.90 Ma = C2n.4; but note that Pliocene Foram "Globorotalia truncatulinoides" FAD is 2.0 Ma (just below Olduvai) in Atl-Medit; but is much earlier at 2.58 Ma (base of Matuyama) in SW Pacfiic. [SA: Bickert et al. (1997a), Chaisson & Pearson (1997), Shipboard Scientific Party (1995); M: Lourens et al. (1996a), Zijderveld et al. (1991), Hilgen (1991a); SP: Dowsett (1988)]				comp notes

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