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select id,columnx from arkL_columns where dataset_id like 13

View/Edit arkL Database interval - CN1b

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The age-window currently being used to search for terms for autocompletion is -27.32 -> 73.126 Ma.

	interval above:	CN1c
parent-intervals:CN1b;	this interval:	CN1b	sub-intervals: CN1b;
	interval below:	CN1a

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Interval data

intervalx:	CN1bhas added abv?id: 4677 sort:277
alternative_term:	block label:b
formal term:
interval_type:
parent_interval:
dataset:	nannos Tethyan (dataset id = 13)
alt dataset:	(dataset id = )
TSC Column:	id:39
stage:
colour:
interval_notes:
compilation_notes:
refs to add:
linked refs:
preset_duration:
preset_duration_notes:
tracecode	; Q2top from event age; Q1base from event age; Q3a duration from base & top

	age2020	age		event	event_id	pup	in interval	age	age2020
Top:		22.6800	<---	FAD Discoaster druggii (s.str.)	6644	0.0000		22.68	00022.6800
Base:		23.1260	<---	LAD Reticulofenestra bisecta (>10 micron)	6648	0.5000	C6Cn.2r	23.126	00023.1260
base notes	DASHED -- Chron C6Cn.2r.5. Moved to "Other" instead of zonal-marker, although some used as Global (not just high-latitude) marker for base of NN1. The LAD of ’R. bisectus’ is used to approximate the NP25/NN1 boundary in high latitudes; and was "substituted for H. recta, the marker of the NP15/NN1 boundary in Martini’s (1971) zonal scheme" by Aubry (in Berggren, Kent, et al., 1995). [ODP Leg 145 Shipboard Scientific Party (1993)]. Leg 145 referred to this LAD as "top of acme"; but ODP Leg 171 scheme assigned as LAD. "Reticulofenestra bisecta" was called "Dictyococcites bisectus" in Perch-Nielsen (1985)?.				comp notes

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