arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 80

View/Edit arkL Database interval - Huobachong Fm.

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The age-window currently being used to search for terms for autocompletion is 159.513 -> 277.3 Ma.

	interval above:	Erqiao Fm.
parent-intervals:Guanling region, Guizhou (South margin of Yangtze platform);	this interval:	Huobachong Fm.	sub-intervals:
	interval below:	Banan Fm.

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Interval data

intervalx:	Huobachong Fm.has added abv?id: 7315 sort:100
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	strat - Yangtse Platform (China, Tr) (dataset id = 80)
alt dataset:	(dataset id = )
TSC Column:	id:169
stage:
colour:
interval_notes:	Quartzose, coal-bearing siliciclastics 690 m thick form the Huobachong Formation. Thick-bedded, cross-stratified sandstone and conglomerates are amalgamated into thinning- and fining-upward intervals separated by blocky mudstones. This fining-upward motif continues into the overlying Erqiao Formation, but coals are lacking." (Enos et al., 1998, 2006). Interpreted as braided streams from the west (molasse). Base placed at base of Norian; but poor age control.
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	in interval	age	age2020
Top:		209.5130	<---	base Erqiao Fm.	9396	0.0000	Sagenites reticulatus / Paracochloceras suessi TAZ	209.513	00209.5130
Base:		227.3000	<---	base Huobachong Fm.	9397	0.0000	Norian	227.3	00227.3000
base notes	Base placed at base of Norian; but poor age control.				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