TERRESTRIAL-MARINE CARBON CYCLE COUPLING IN ~500-M.Y.-OLD PHOSPHATIC BRACHIOPODS

dc.contributor.author	Cowan C.A.
dc.contributor.author	Fox D.L.
dc.contributor.author	Runkel A.C.
dc.contributor.author	Saltzman M.R.
dc.date.accessioned	2024-01-06T04:06:05Z
dc.date.available	2024-01-06T04:06:05Z
dc.date.issued	2005
dc.identifier	https://www.elibrary.ru/item.asp?id=45489091
dc.identifier.citation	Geology, 2005, 33, 8, 661-664
dc.identifier.issn	0091-7613
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/42443
dc.description.abstract	Carbon isotope compositions (δ13C) of inarticulate brachiopod shells from Upper Cambrian sandstone in the cratonic interior of Laurentia record a 5‰ positive excursion that correlates biostratigraphically with the global Steptoean positive isotopic carbon excursion. A consistent 6‰ negative displacement in brachiopod δ13C relative to carbonate values is interpreted to represent an onshore-offshore gradient in the isotopic composition of dissolved inorganic carbon in Cambrian seawater. Thus, these ~500-m.y.-old chitinophosphatic brachiopod shells preserve evidence for carbon cycle coupling between the ancient atmospheric, oceanic, and terrestrial reservoirs in the time before embryophytic land plants.
dc.subject	BRACHIOPOD
dc.subject	CAMBRIAN
dc.subject	CHITINOPHOSPHATIC
dc.subject	INARTICULATE BRACHIOPOD
dc.subject	δ13C
dc.title	TERRESTRIAL-MARINE CARBON CYCLE COUPLING IN ~500-M.Y.-OLD PHOSPHATIC BRACHIOPODS
dc.type	Статья
dc.identifier.doi	10.1130/G21434AR.1
dc.subject.age	Paleozoic::Cambrian

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