arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 10

View/Edit arkL Database interval - P6a pfZ

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The age-window currently being used to search for terms for autocompletion is 4.5402 -> 105.1484 Ma.

	interval above:	P6b pfZ
parent-intervals:	this interval:	P6a pfZ	sub-intervals:
	interval below:	P5 pfZclassic

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Interval data

intervalx:	P6a pfZhas added abv?yesid: 16639 sort:
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	forams - planktic (dataset id = 10)
alt dataset:	(dataset id = 0)
TSC Column:	id:117
stage:
colour:
interval_notes:
compilation_notes:	a
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:		54.5402	<---	FAD Morozovella formosa	6323	0.8000	C24r	54.5402	00054.5402
Base:		55.1484	<---	LAD Morozovella velascoensis	6326	0.6100	C24r	55.1484	00055.1484
base notes	DASH (but Wade requested J.Ogg to remove "dash" via e-mail 18July2011) -- Wade et al. (2011) projects as 54.9 Ma relative to GTS04 polarity chrons, therefore at Chron C24r.61 (used here). Berggren and Pearson (2005), puts this LAD 0.2 myr higher than Berggren et al. (1995a) -- This LAD is recorded in younger part of Chron C24r in Hole 577 and in mid-C24r in Hole 577 (at 81.98 m). However, paleomagnetic data (Bleil, 1985, DSDP Leg 86: 449, Fig. 7b) suggests a hiatus occurs between ~82m & 83 m in Hole 577, which would have the effect of depressing (rendering older) the HO of ’M. velascoensis’. The HO of ’M. velascoensis’ in Hole 577 is in Nannofossil zone CP8 (=NP9) (Monechi, 1985: 310, Table 5) which supports interpretation of hiatus in Hole 577, because the LO of ’M. valascoensis’ is in Nannofossil Zone NP10. Furthermore, Monechi (1985: p.307) indicates absence of extremely condensed sedimentation across the Paleocene/Eocene boundary interval. Essentially, it is not yet possible to position this LAD proportionally within the long Chron C24r.				comp notes

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