arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 13

View/Edit arkL Database interval - NC7a

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The age-window currently being used to search for terms for autocompletion is 68.2714 -> 169.4014 Ma.

	interval above:	NC7b
parent-intervals:NC7a;	this interval:	NC7a	sub-intervals: NC7a;
	interval below:	NC6b

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Interval data

intervalx:	NC7ahas added abv?id: 3737 sort:90
alternative_term:	block label:a
formal term:
interval_type:
parent_interval:
dataset:	nannos Tethyan (dataset id = 13)
alt dataset:	(dataset id = )
TSC Column:	id:39
stage:
colour:
interval_notes:	CC 7a / 7b base of 7b defined by FO of E. floralis (J. Mutterlose email, Dec’19) [Was FAD of R. gallagheri/angustus in GTS2012]. Base E. floralis (base NC7a) in Piobbico Core (Bottini and Erba, 2015) is at E46 2/3rd below base Cenomanian (Wendy Zhang et al., re-analysis of Huang’s cycles, used here) = base of "C7" interval of Aptian C13 curve = just above main OAE1a. This is about 2/3rds up in L.cabri foram zone (in broad sense) = "Nannoconid Return event" (Erba, 2004, Marine Micro). GTS04 = 121.9 Ma (2.1 myr above base-Aptian) (was 119.0 Ma in Leckie’s chart), which sets base of D. furcata Zone. Time-control point for scaling E. Aptian. SEPM’98 had FAD projected to 8/10 up in D. forbesi Zone (= D. weisi) on SEPM chart; but now projects much higher (base of D. furcata Zone)
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:		118.2714	<---	LADt Micrantholithus hoschulzii	4647	0.9000	G. ferreolensis pfZ	118.2714	00118.2714
Base:		119.4014	<---	FADt Eprolithus floralis	4718	0.0000		119.4014	00119.4014
base notes	CC 7a / 7b base of 7b defined by FO of E. floralis (J. Mutterlose email, Dec’19) [Was FAD of R. gallagheri/angustus in GTS2012]. Base E. floralis (base NC7a) in Piobbico Core (Bottini and Erba, 2015) is at E46 2/3rd below base Cenomanian (Wendy Zhang et al., re-analysis of Huang’s cycles, used here) = base of "C7" interval of Aptian C13 curve = just above main OAE1a. This is about 2/3rds up in L.cabri foram zone (in broad sense) = "Nannoconid Return event" (Erba, 2004, Marine Micro). GTS04 = 121.9 Ma (2.1 myr above base-Aptian) (was 119.0 Ma in Leckie’s chart), which sets base of D. furcata Zone. Time-control point for scaling E. Aptian. SEPM’98 had FAD projected to 8/10 up in D. forbesi Zone (= D. weisi) on SEPM chart; but now projects much higher (base of D. furcata Zone)				comp notes

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