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select id,columnx from arkL_columns where dataset_id like 10

View/Edit arkL Database interval - M13b pfSZ

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The age-window currently being used to search for terms for autocompletion is -43.86 -> 58.58 Ma.

	interval above:	Pt1a pfSZ
parent-intervals:M13 pfZ;	this interval:	M13b pfSZ	sub-intervals:
	interval below:	M13a pfSZ

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intervalx:	M13b pfSZhas added abv?yesid: 4331 sort:110
alternative_term:	block label:b
formal term:	Globorotalia plesiotumida/ Globorotalia lenguaensis Concurrent-range Subzone
interval_type:
parent_interval:
dataset:	forams - planktic (dataset id = 10)
alt dataset:	(dataset id = 0)
TSC Column:	id:108
stage:
colour:
interval_notes:	M13b base (base of N17) defined by: FAD of Glob. plesiotumida (formerly also eval FAD of Neo. humerosa). [NOTE: In contrast to Wade et al. (2011), Erik Anthonissen choose to honor both the Atlantic andPacific calibrations and recognizes significant diachrony for the LAD of G. lenguaensis. The Atlantic event is no longer used by him as a zonal marker between M13b and M14 and the resulting zone in the Atlantic scheme is therefore a M14-M13b composite, pending further investigation.]] The Globorotalia plesiotumida/Globorotalia lenguaensis Concurrent-range Subzone [fomerly)’Globigerinoides extremus/Globorotalia plesiotumida -Globorotalia lenguaensis Interval SubZone’ (FAD of Globig. extremus/ Globorot.plesiotumida to LAD of Globorotalia lenguaensis) (Berggren et al., 1995)], is equivalent to the majority of Zone ’N17’ of Blow (1969). M13b base defined either by: Glob. plesiotumida or Neo. humerosa. The base of "N17" was defined as the initial evolutionary FAD of Gt. Plesiotumida from its (putative) ancestor Gt. merotumida, but this event is difficult to apply. The base of "N17" was defined as the initial evolutionary FAD of Gt. Plesiotumida from its (putative) ancestor Gt. merotumida, but this event is difficult to apply.
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:		6.1400	<---	LAD Globorotalia lenguaensis [Pac.]	6163	0.5300	C3An.1n	6.14	00006.1400
Base:		8.5800	<---	FAD Globorotalia plesiotumida	6184	0.0000		8.58	00008.5800
base notes	M13b base defined by: Glob. plesiotumida (formerly also coeval FAD of Neo. humerosa). Astronomically tuned from South Atlantic ODP Sites 925 & 926. Berggren et al. (1995) note that ’Globorotalia plesiotumida’ FAD is recorded in Hole 806B (Ontong-Java Plateau, Equatorial Pacific), but its FAD was difficult to define owing to questionable lower occurrences. Berggren et al. (1995) assigned the FAD based on its lowest questionable occurrence, but its effective FCO may be about 0.5 m.y. higher (coeval with FAD of Globorotalia cibaoensis). In the Gulf of Mexico, the FAD is recorded in upper part of Nannofossil Zone NN10, similar to the lower Pacific occurrences, and overlaps the upper part of Discoaster bollii range with the FAD slightly below FAD of nannofossil Minylitha convallis FAD (Zhang et al., 1993; Aubry, 1993). A similar FAD level is in Buff Bay, Jamaica (Berggren, 1993; Aubry, 1993). Berggren et al. (1995) assign the age as (C4r.2r); (8.3) = C4.2r.9 based on the Equatorial Pacific. [NA: Zhang et al. (1993), Aubry (1993); SA: Chaisson & Pearson (1997), Shackleton & Crowhurst (1997); EP: Chaisson & Leckie (1993)]				comp notes

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