arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 1

View/Edit arkL Database interval - Middle Eocene

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The age-window currently being used to search for terms for autocompletion is -12.29 -> 98.068 Ma.

	interval above:	Late Eocene
parent-intervals:Paleogene;	this interval:	Middle Eocene	sub-intervals:
	interval below:	Early Eocene

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Interval data

intervalx:	Middle Eocenehas added abv?id: 4272 sort:
alternative_term:	block label:M
formal term:
interval_type:
parent_interval:
dataset:	chronostratigraphy (dataset id = 1)
alt dataset:	(dataset id = )
TSC Column:	id:80
stage:
colour:	252/180/130
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:		37.7100	<---	base Priabonian	5897	0.0000		37.71	00037.7100
Base:		48.0680	<---	base Lutetian	5899	0.0000		48.068	00048.0707
base notes	Base of Lutetian (GSSP ratified Feb 2011) is base of nannofossil Blackites inflatus at Gorrondatxe section in Spain. This level is 39 precession cycles above base of Chron C21r at Otsakar section near GSSP one (therfore near C21r.7) (= 0.81 myr above using 20.7 kyr average precession at ca. 48 Ma as advised by Heiko Palicke email to J.Ogg 5Sept2019). NOTE: Using Lutetian GSSP proposal’s assignment of "uncertain = R" at top of C21r (as they indicate with their labeled C21n/C21r level), then this was lower -- 40% up in C21r -- age from spline-fit with cycles. Therefore, this is about 0.78 myr above the GTS04 working placement as base of C21r (following Berggren et al’95) [NB base C21r= base C21]				comp notes

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