Publication Date:
2023-11-30
Description:
Paleobotanical site information, terpenoid, n-alkane, and other and biomarker quantification and carbon isotope data from sediment samples collected from North America Paleogene fossil leaf sites that extend from Colorado to the High Arctic. Sediment samples were collected laterally along fossil leaf-bearing zones. To disentangle the vegetation source of sediment n-alkanes, we measured the carbon isotope (δ13C) values of nonsteroidal triterpenoids (angiosperm biomarkers) and tricyclic diterpenoids (conifer biomarkers) to determine angiosperm and conifer end member δ13C values. Compounds were isolated using column chromatography and identified and quantified with an Agilent 7890A gas chromatograph (GC) interfaced to an Agilent 5975C quadrupole mass selective detector (MSD) and flame ionization detector (FID). Compound-specific carbon isotope analyses were performed, where possible, on n-C27 through n-C35 alkanes, diterpenoids, and triterpenoids by gas chromatograph-combustion-isotope ratio mass spectrometry (GC-C-IRMS).
Keywords:
1,2,3,4-Tetrahydroretene, δ13C; 1,2,9-Trimethyl-1,2,3,4-tetrahydropicene, δ13C; 13alpha(H)-Fichtelite, δ13C; 18-Norabieta-8,11,13-triene, δ13C; 18-Norisopimarane, δ13C; 19-Norabieta-3,8,11,13-tetraene, δ13C; 19-Norabieta-4,8,11,13-tetraene, δ13C; 19-Norabieta-8,11,13-triene, δ13C; 2,2,4a,9-Tetramethyl-1,2,3,4,4a,5,6,14b-octahydropicene, δ13C; 2,2,9-Trimethyl-1,2,3,4-tetrahydropicene, δ13C; 2-Methyl-1-(4'-methylpentyl)-6-isopropylnaphthalene, δ13C; Abieta-8,11,13-triene, δ13C; Abietane, δ13C; AGE; Age, maximum/old; Age, minimum/young; Average chain length; Axel_Heiberg_Island; Axel Heiberg Island, Canadian Arctic; Belt_Ash_Carbonaceous_Bed; Boulder_Hills; British Columbia, Canada; Carbon, organic, total; carbon isotope; Carbon Preference Index; Cf-1_Carbonaceous_Bed; Colorado, United States of America; conifers; Creede; Dehydroicetexane, δ13C; Des-A-26-norlupa-5,7,9-triene, δ13C; Des-A-lupane, δ13C; Diaromatic tricyclic totarane, δ13C; Dinor-oleana(ursa)-1,3,5(10)-triene, δ13C; Diterpenoids, plant-derived; Dorsey_Creek_Fence_Carbonaceous_Bed; Driftwood_Canyon,_British_Columbia; Ellesmere Island, Canadian Arctic Archipelago; ent-13-epi manoyl oxide, δ13C; ent-Beyerane, δ13C; Epoch; Event label; Fifteenmile_Carbonaceous_Bed; Florissant_Fossil_Beds_National_Monument; Fosheim_Anticline; Gas chromatography (Agilent GC 7890) interfaced to a quadrupole mass selective detector (MSD, Agilent 5975C ) and flame ionization detector (FID); Gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS); Grimy_Gulch; Honeycombs_Carbonaceous_Bed; Hot_Weather_Creek; Isonorpimarane, δ13C; Isopimarane, δ13C; Lake_Hazen_9-US261; Latest_Paleocene_level; Latitude of event; Lithology/composition/facies; Location; Long-chain n-alkanes, C27-C35; Longitude of event; Mosquito_Creek; n-alkane; n-Alkane C27, δ13C; n-Alkane C29, δ13C; n-Alkane C31, δ13C; n-Alkane C33, δ13C; n-Alkane C35, δ13C; Norpimarane, δ13C; Olean-11,13(18)-diene, δ13C; Olean-12-ene, δ13C; Olean-18-ene, δ13C; Paleogene; Pimarane, δ13C; Pristane/Phytane ratio; Retene, δ13C; Sample ID; Simonellite, δ13C; Site; Split_Lake; Stenkul_Fiord; Strathcona_Fiord_11-US422; terpenoid; Terrigenous/aquatic ratio; Tetracyclic diterpane, δ13C; Tetramethyloctahydropicene isomer, δ13C; Thermal maturity, hopane; Triterpenoids, plant-derived; Vegetation type; WCS7; Wyoming, United States of America; δ13C
Type:
Dataset
Format:
text/tab-separated-values, 2328 data points
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