Data for: Stable isotope analysis of the Gwebin mammalian fauna (late Pliocene, central Myanmar) and its implication to paleoenvironmental changes in late Neogene of central Myanmar

Published: 30-06-2021| Version 1 | DOI: 10.17632/xfnfgb52wf.1
Contributor:
zin maung maung thein

Description

Isotopic composition of treated samples was measured on a Gasbench II coupled to a Finnigan Delta V Mass Spectrometer at the University of South Florida. The CO2 samples were run in continuous flow mode after reaction with 103% phosphoric acid (100% H3PO4 with excess P2O5) at 25 °C for 24 hours (McCrea, 1950). Seven replicate samples of Carrara Marble (an internal standard which has been assigned a value of δ13C=+2.01‰, δ18O=−1.79‰, based on analysis with respect to NBS-19, δ13C=+1.95‰, δ18O=−2.20‰) and NBS-18 carbonatite (13C=−5.04‰, δ18O=−23.05‰, NIST, 1992) were analyzed in each run of 60 samples. Standard deviation of replicate analyses for both isotope values was 0.15‰. Stable isotope data were reported in the conventional delta () notation for carbon (13C) and oxygen (18O) relative to V-PDB (Vienna-Pee Dee Belemnite, i.e., PDB expressed in terms of NBS-19): =[(R sample/R standard)−1]×1000‰, where R denotes 13C/12C or 18O/16O. The statistical analyses were carried out using PAST (version 3.20).

Files