arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 4

View/Edit arkL Database interval - Hirnantian-Lt. Katian N

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The age-window currently being used to search for terms for autocompletion is 393.0718 -> 498.8292 Ma.

	interval above:	Llandovery mixed-polarity interval
parent-intervals:	this interval:	Hirnantian-Lt. Katian N	sub-intervals:
	interval below:	Sandbian-E. Katian mixed interval (Pavlov-Gallet, 2005)

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Interval data

intervalx:	Hirnantian-Lt. Katian Nhas added abv?id: 14774 sort:212
alternative_term:	block label:
formal term:
interval_type:	mfs
parent_interval:
dataset:	magnetochronology (dataset id = 4)
alt dataset:	(dataset id = )
TSC Column:	id:125
stage:
polarity:
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:		443.0718	<---	base LlanMixed1	15237	0.0000	Rhuddanian	443.0718	00443.0718
Base:		448.8292	<---	base Hirn-KatN	15236	0.5200	Katian	448.8292	00448.8292
base notes	Major N is reported beginning about 52% up in Katian (summary by Opkye and Channell, 1996, based on Khramov et al 1965 -- needs to be verified).				comp notes	there are no subchron names given in the workbook for the Orodvican and Silurian. So arbitrary names have been added here.

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Interval References

Dataset References