arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 80

View/Edit arkL Database interval - Dalong Fm.

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The age-window currently being used to search for terms for autocompletion is 201.8 -> 302.405 Ma.

	interval above:	Yinkeng Fm.
parent-intervals:Chaohu region, Anhui (northeast margin of Yangtze platform);	this interval:	Dalong Fm.	sub-intervals:
	interval below:

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Interval data

intervalx:	Dalong Fm.has added abv?id: 7328 sort:286
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	strat - Yangtse Platform (China, Tr) (dataset id = 80)
alt dataset:	(dataset id = 0)
TSC Column:	id:169
stage:
colour:
interval_notes:	Only upper part is shown here schematically. At Meishan, this unit is thin-bedded limestone/claystone alternations; but is more clayey at Chaohu (and poorly exposed).
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	age	age2020
Top:		251.8000	<---	base e0.3 ChL	9493	0.0000	251.8	00251.8020
Base:		252.4050	<---	base E-1 ChL	9646	0.0000	252.405	00252.4050
base notes	Implied to be 100kyr below base of e0.2 (which is at P/T boundary In scale of Li et al (2015)				comp notes

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Interval References

Dataset References

Enos, P., et al. (2006). Triassic Evolution of the Yangtze Platform in Guizhou Province, People’s Republic of China. Geological Society of America, Special Papers. 417: 1-105. gs

Lehrmann, D. J., et al. (2015). An integrated biostratigraphy (conodonts and foraminifers) and chronostratigraphy (paleomagnetic reversals, magnetic susceptibility, elemental chemistry, carbon isotopes and geochronology) for the Permian-Upper Triassic strata of Guandao section, Nanpanjiang Basin, south China. Journal of Asian Earth Sciences. 108: 117-135. gs