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select id,columnx from arkL_columns where dataset_id like 10

View/Edit arkL Database interval - P2 pfZ

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The age-window currently being used to search for terms for autocompletion is 12.3334 -> 112.681 Ma.

	interval above:	P3 pfZ
parent-intervals:	this interval:	P2 pfZ	sub-intervals:
	interval below:	P1 pfZ

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Interval data

intervalx:	P2 pfZhas added abv?yesid: 4325 sort:673
alternative_term:	block label:
formal term:	Praemurica uncinata Lowest-occurrence Zone
interval_type:
parent_interval:
dataset:	forams - planktic (dataset id = 10)
alt dataset:	(dataset id = )
TSC Column:	id:104
stage:
colour:
interval_notes:	Paleocene Foram Zone ’P2’ Praemurica uncinata Lowest-occurrence Zone [was the ’Praemurica uncinata -Morozovella angulata Interval Zone’ (Berggren et al., 1995)] = FAD of P. uncinata to FAD of M. angulata; equivalent to the same zone of Berggren and Miller (1988). In general, this brief zone only encompasses 2-3 m in deep sea sites.
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:		62.3334	<---	FAD Morozovella angulata	6348	0.7800	C27n	62.3334	00062.3334
Base:		62.6810	<---	FAD Praemurica uncinata	6351	0.8500	C27r	62.681	00062.6811
base notes	Praemurica uncinata’ (formerly ’Morozovella uncinata’) FAD defines base of Zone P2. Wade et al. (2011, Fig.2) schematically show base as ca. 85% up in C27r -- used here. Berggren and Pearson (2005) moved the FAD 0.4 myr older than in Berggren et al. (1995), who had an extended discussion of calibration problems in different sites. Berggren and Pearson (2005) summary age assignment of 61.37 Ma corresponds to Chron C27r.92 on their polarity scale. [NOTES from Berggren et al. (1995) -- The FAD occurs in Hole 577 (refs. a,e) just above a N->R polarity reversal (= polarity chron C28n); but Polarity chron C27n is missing (Bleil, 1985, DSDP Leg 86: p.446, Fig. 5; p.449, Fig 7B), and there may be a short hiatus at/near the level if FAD of this taxon in C27n (ref. b) is correct. Alternatively C27n may be missing in the core break between cores 11 and 12 (ca. 101.8 m) in which case the FO of this taxon would be near the C27r/C28n boundary (see ref. b). In Hole 384, it occurs at the same level as FAD of ’P. praeangulata’ in Nannofossil Zone NP4 at the base of C27n, as well as in Holes 465 and 758A (see extended discussion in Berggren et al., 1995, SEPM). Its FAD was considered equivalent to FAD of ’Praemurica praecursoria’ (= ’Globorotalia (Acarinina) praecursoria’ of Berggren & Miller, 1988) in an earlier draft by Berggren (1993), but ’praecursoria’ was removed from his later versions. Chron assignment = C27n (lower); 61.2 Ma [a,b]; but 61.37 Ma (uppermost C27r) in Berggren and Pearson, 2005 = C27r.92.]				comp notes

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