Organic carbon chemistry of ODP Hole 151-909C (Table 1), supplement to: Knies, Jochen; Mann, Ute (2002): Depositional environment and source rock potential of Miocene strata from the central Fram Strait: introduction of a new computing tool for simulating organic facies variations. Marine and Petroleum Geology, 19(7), 811-828

• Main Authors: Knies, Jochen, Mann, Ute
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2002
• Subjects: Sample code/label; DEPTH, sediment/rock; AGE; Carbon, organic, total; Carbon, organic, terrestrial matter; Carbon, organic, marine matter; Sedimentation rate; Density, dry bulk; Accumulation rate, terrestrial organic matter; Accumulation rate, marine organic matter; Hydrogen index, mass HC per unit mass total organic carbon; Paleoproductivity as carbon; Vitrinite; Liptodetrinite; Alginite; Drilling/drill rig; DSDP/ODP/IODP sample designation; Rock eval pyrolysis Behar et al., 2001; Calculated; Leg151; Joides Resolution; Ocean Drilling Program ODP; Greenland; Fram Strait; Greenland Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.746742; https://doi.pangaea.de/10.1594/PANGAEA.746742

Organic-rich sediments were recognized in early Miocene strata from the Norwegian-Greenland Sea during ODP Leg 151. Three organic-geochemical subunits were distinguished in Hole 909C using detailed organic-geochemical and microscopic analyses. TOC (up to 3 wt%), HI (up to 200 mg HC/g TOC), and d13Corg values (~24–26 per mil) indicate the predominance of terrestrial type III organic matter in Subunit 3 (~18–16.2 Ma). Biomarker and vitrinite reflectance values (R0 ~0.5%) point to rather fresh immature terrestrial organic matter supplied by river discharge from adjacent vegetated coastal areas. Although the sediments of Subunit 3 have a fair (to good) source rock potential they are insufficiently mature to generate significant amounts of oil or gas. To test if the moderate generation potential and source rock quality of Subunit 3 are applicable to the entire area, the computer software OF-Mod was applied. Several modelling runs testing the most probable depositional scenarios result, even under conservative assumptions, in the formation of good to excellent source rocks towards the basin margins.