Besides mineralogy, we also provide data regarding geochemistry, carbon isotopic composition of carbonate, organic matter characteristics including solid state 13C NMR and δ13C data, and evidence of vegetation types based on field observations and SEM images.
The carbon isotopic composition of carbonate rocks precipitated from glacial ocean waters, however, revealed no sign that volcanoes had prevailed over life in the isotope game.
The micro-morphological properties of the observed calcretes and reddish palaeosols combined with the stable oxygen and carbon isotopic composition of the carbonates suggest the alternation of three stable relatively warm humid (vegetation rich) and two stable relatively arid cool (bare surface) cycles.
The carbon isotopic composition of authigenic carbonates in ancient oceans have been assumed to be significantly lower than that of dissolved inorganic carbon (DIC) in seawater, as is observed in the modern oceans.
Kennedy, M. J., Christie-Blick, N. & Prave, A. R. Carbon isotopic composition of Neoproterozoic glacial carbonates as a test of paleoceanographic models for Snowball Earth phenomena.
Analysis of the stable isotopic composition of lower Miocene–Quaternary (21 0.015 Ma) palustrine and lacustrine carbonates in the Calama Basin reveals extreme changes in their oxygen and carbon isotopic composition during the Miocene.
The carbon isotopic composition of seawater DIC (δ13CDIC), and consequently that of the carbonate mineral (δ13Ccarb), is interpreted to represent the partitioning of carbon between the two major sinks.
But, he added, "The question of carbon isotopic composition is something of a mystery".
Can the carbon isotopic composition of methane be reconstructed from multi-site firn air measurements?
Laws, E. A. et al. Controls on the molecular distribution and carbon isotopic composition of alkenones in certain haptophyte algae.
Yields and carbon isotopic composition of gaseous hydrocarbons were determined.
