. 2020 Jul 30;10:12812. doi: 10.1038/s41598-020-69562-2

Table 3.

Two mixing model scenarios considering accelerator mass spectrometry (AMS) δ¹³C and Δ¹⁴C of modern organic matter (OM), modern methane (MM) and ancient methane (AM) as endmember potential sources that contribute to Typhlatya diet affecting their tissue composition.

	Scenario	1	2
	δ¹³C (‰)	Δ¹⁴C (‰)	Δ¹⁴C (‰)
OM	− 25.4	− 4.3	− 4.3
MM	− 66.3	0	0
AM	− 56.3	− 1,000	− 260

δ¹³C remains constant in all scenarios, whilst AM was assigned as ¹⁴C-carbon dead in the first scenario and the oldest Δ¹⁴C obtained in this study for the second scenario.